The present invention relates to the field of pixel matrix display technologies, and in particular to a method for driving a pixel matrix and a display device.
VA type liquid crystal panels are widely used in current display products. At present, VA type panels are mainly divided into two types, one is Multi-domain Vertical Alignment (MVA) type, and the other is Patterned Vertical Alignment (PVA) type. The principle of MVA technology is to add protrusions to form multiple visible areas. The liquid crystal molecules are not completely vertically aligned in the static state, and the liquid crystal molecules are horizontally arranged after the voltage is applied, so that the light can pass through the layers. PVA is an image vertical adjustment technology that directly changes the structure of the liquid crystal cell, so that the display performance can be greatly improved to obtain brightness output and contrast superior to MVA.
However, in the existing 4-domain VA technology, with the adjustment of the viewing angle, the structure of the VA-type liquid crystal display panel is prone to color washout at a large viewing angle, so that the displayed image is easily distorted, especially the performance of the character's skin color tends to be lighter blue or brighter white. See
In order to solve the above problems in the prior art, the present invention provides a method for driving a pixel matrix and a corresponding display device that solve the color washout phenomenon and improve the display effect.
Specifically, embodiments of the present invention provide a method for driving a pixel matrix, the pixel matrix includes a plurality of sub-pixels arranged in a matrix, wherein voltages applied along any one of data lines change in polarity once every four sub-pixels or every two sub-pixels; any one of the data lines controls voltage inputs of sub-pixels in a scan line direction and respectively connected to two sides of the data line, or controls voltage inputs of two sub-pixels in the scan line direction and both connected to one side of the data line; the method includes: receiving an image data, and acquiring original pixel data according to the image data; generating a first driving voltage and a second driving voltage according to the original pixel data; and loading the first driving voltage or the second driving voltage to the pixel matrix along each of the data lines.
In a specific embodiment, the step of generating a first driving voltage and a second driving voltage according to the original pixel data includes: obtaining a first gray scale data and a second gray scale data according to the original pixel data; and generating the first driving voltage corresponding to the first gray scale data and the second driving voltage corresponding to the second gray scale data, according to the first gray scale data and the second gray scale data.
In a specific embodiment, the step of obtaining a first gray scale data and a second gray scale data according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and converting the original gray scale value of each pixel position into the first gray scale data or the second gray scale data according to a predetermined conversion manner.
In a specific embodiment, the step of generating a first driving voltage and a second driving voltage according to the original pixel data includes: obtaining an original data driving signal for each pixel position according to the original pixel data; and converting the original data driving signal into the first driving voltage or the second driving voltage according to a preset conversion rule.
In a specific embodiment, the step of obtaining an original data driving signal for each pixel position according to the original pixel data includes: obtaining an original gray scale value for each pixel position according to the original pixel data; and obtaining the original data driving signal according to the original gray scale value.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every four sub-pixels, any one of the data lines controls voltage inputs of sub-pixels in the scan line direction and respectively connected to the two sides of the data line, and the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have a same polarity; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the data line; and loading the first driving voltage and the second driving voltage alternately as per every sub-pixel or loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels, along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every four sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, and the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have a same polarity; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every four sub-pixels along the data line; and loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities, the voltages applied to the sub-pixels in a data line direction change in polarity once every two sub-pixels, and the voltages applied to the sub-pixels along the scan line direction change in polarity once every two sub-pixels; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along the data line direction; and loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities, the voltages applied to the sub-pixels in a data line direction change in polarity once every two sub-pixels, and the voltages applied to the sub-pixels along the scan line direction change in polarity once every two sub-pixels; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the data line direction; and loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along a data line direction; and loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels along a data line direction; and loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along a data line direction; and loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the two sub-pixels in the scan line direction and both connected to the one side of the data line, the two sub-pixels in the scan line direction and both connected to the one side of the data line have a same polarity; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along a data line direction; and loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the two sub-pixels in the scan line direction and both connected to the one side of the data line, the two sub-pixels in the scan line direction and both connected to the one side of the data line have a same polarity; the step of loading the first driving voltage or the second driving voltage to the pixel matrix along any one of the data lines includes: loading the first driving voltage and the second driving voltage alternately as per every sub-pixel along a data line direction; and loading the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the scan line direction.
In addition, a display device provided by an embodiment of the present invention includes a timing controller, a data driving unit, a scan driving unit and a pixel matrix, wherein in the pixel matrix, voltages applied along any one of data lines change in polarity once every four sub-pixels or every two sub-pixels, any one of the data lines controls voltage inputs of sub-pixels in a scan line direction and respectively connected to two sides of the data line or controls voltage inputs of two sub-pixels in the scan line direction and both connected to one side of the data line; the timing controller is individually connected to the data driving unit and the scan driving unit, and the data driving unit and the scan driving unit are individually connected to the pixel matrix; wherein the scan driving unit is configured to load a scan signal to the pixel matrix; and the timing controller is configured to receive an image data, acquire original pixel data according to the image data, and obtain a first gray scale data and a second gray scale data according to the original pixel data; and the data driving unit is configured to generate a first driving voltage corresponding to the first gray scale data and a second driving voltage corresponding to the second gray scale data according to the first gray scale data and the second gray scale data, and load the first driving voltage or the second driving voltage into the pixel matrix along any one of the data lines; or the timing controller is configured to receive an image data, acquire original pixel data according to the image data, and obtain an original data driving signal for each pixel position according to the original pixel data; and the data driving unit is configured to convert the original data driving signal into a first driving voltage or a second driving voltage according to a preset conversion rule, and load the first driving voltage or the second driving voltage into the pixel matrix along any one of the data lines.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every four sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, and the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have a same polarity; the data driving unit is specifically configured to: load the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the data line, and load the first driving voltage and the second driving voltage alternately as per every sub-pixel or as per every two sub-pixels along the scan line direction; or, the data driving unit is specifically configured to: load the first driving voltage and the second driving voltage alternately as per every four sub-pixels along the data line, and load the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities, the voltages applied to the sub-pixels along a data line direction change in polarity once every two sub-pixels, and the voltages applied to the sub-pixels along the scan line direction change in polarity once every two sub-pixels; the data driving unit is specifically configured to: load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction; or load the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the sub-pixels in the scan line direction and respectively connected to the two sides of the data line, the sub-pixels in the scan line direction and respectively connected to the two sides of the data line have opposite polarities; the data driving unit is specifically configured to: load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction; or load the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction; or load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the scan line direction.
In a specific embodiment, the voltages applied along any one of the data lines change in polarity once every two sub-pixels, any one of the data lines controls voltage inputs of the two sub-pixels in the scan line direction and both connected to the one side of the data line, the two sub-pixels in the scan line direction and both connected to the one side of the data line have a same polarity; the data driving unit is specifically configured to: load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the scan line direction; or load the first driving voltage and the second driving voltage alternately as per every sub-pixel along the data line direction, and load the first driving voltage and the second driving voltage alternately as per every two sub-pixels along the scan line direction.
Compared with the prior art, the beneficial effects of the invention: the method for driving the pixel matrix and the display device of the embodiment of the invention combine the reasonable high gray scale voltage with the low gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, thereby crosstalk, bright and dark lines and the like are avoided, and the display effect is improved.
The present invention will be further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.
Referring to
Further, the pixel matrix includes a plurality of sub-pixels arranged in a matrix, the voltages applied along any one of the data line change in polarity once every four sub-pixels, and any one of the data lines controls the voltage input of each sub-pixel on both sides thereof. In the direction of the data line, the voltage applied to the sub-pixel is changed once every two sub-pixels, and the voltage applied to the sub-pixels in the direction of the scan line is changed once every two sub-pixels. Specifically, for the sub-pixel polarity, both the scan line direction and the data line direction are 2N inverted, and the data line polarity inversion mode is 4N.
Specifically, referring to
Wherein, the image data refers to a digital signal input to the timing controller TCON, and the image data is input frame by frame, and the original pixel data is parsed by the image data. In one of the prior arts, the original pixel data, that is, a specific gray scale value corresponding to each sub-pixel in the pixel matrix corresponding to the display, the gray scale value input to each sub-pixel is directly determined by the image data input into the TCON, and the original pixel data is not processed. Such methods are affected by the polarity of the sub-pixels, which causes the sub-pixel polarity to easily cause crosstalk, bright and dark lines and other negative effects.
In this embodiment, by processing the original pixel data, further first gray scale data and second gray scale data are obtained, and the gray scales of the first gray scale data and the second gray scale data are different. Furthermore, the image is loaded into the corresponding sub-pixels at different intervals between different pixels or between different frames. The solution in this embodiment can generate two sets of different gray scales, respectively corresponding to different sub-pixels. In this way, it is possible to prevent the voltage applied to the sub-pixel from being affected by the polarity inversion, thereby avoiding the occurrence of crosstalk and bright and dark lines.
In a specific example, the first gray scale data is considered to be high gray scale data, and the second gray scale data is considered to be low gray scale data. Correspondingly, the magnitude of the voltage input to the sub-pixel is determined by the gray scale, the high gray scale voltage generated corresponding to the high gray scale data, that is, the first driving voltage; and the low gray scale voltage generated corresponding to the low gray scale data, that is, the second driving voltage. It is worth mentioning that the above-mentioned high gray scale and low gray scale represent the relative values of the gray scale sizes of the two groups, and the magnitude of the values is not separately limited.
Referring to
In a specific embodiment, the step of obtaining a first gray scale data and a second gray scale data according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and converting the original gray scale value of each pixel position into the first gray scale data or the second gray scale data according to a predetermined conversion manner.
After determining the gray scale corresponding to each pixel position according to the rule of the present invention, the timing controller adjusts the original gray scale correspondence of the pixel position to a high gray scale or a low gray scale, and transmits the adjusted gray scale value to the data driving unit, and the number driving unit outputs the corresponding voltage according to the gray scale value.
For example, the original gray scale value of the A position is 128 gray scale. If the above rule according to the present invention, the A position should output a high gray scale, that is, H, after calculation, in this example, 128 gray scale corresponding H=138 gray scale value, then output 138 gray scale to the A position, the data driving unit receives 138 gray scale, according to the established conversion rule, the voltage corresponding to 138 gray scale is 10V, and finally the voltage signal of 10V is output to the A position. Generally, the adjustment range of the high and low gray scales is determined by the difference of materials such as liquid crystal.
For another example, the original gray scale value of the B position is 128 gray scale. If the above rule is used according to the present invention, the B position should output a low gray scale, that is, L, after calculation, in this example, the 128 gray scale corresponds to the L=118 gray scale value, then the output is 118 gray scale to the B position, and the data driving unit receives the 118 gray scale, according to the established conversion rules, the voltage corresponding to the gray scale of 118 is 8V, and finally the voltage signal of 8V is output to the B position.
In a specific embodiment, the step of loading the first driving voltage or the second driving voltage to the pixel matrix along the data lines includes:
The pixel matrix is physically divided into a plurality of small blocks arranged in a matrix by a plurality of interleaved data lines and scan lines, and each small block is one sub-pixel.
For example, refer to
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The gray scale on the adjacent sub-pixels on both sides of the data line is the same, that is, when the adjacent sub-pixel on the left side of the data line is H, the adjacent sub-pixel on the right side of the data line is H, and vice versa.
From a certain column, the gray scale voltages applied to two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two, from a certain line, the gray-scale voltages loaded into the sub-pixels alternately change, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The gray scale on the adjacent sub-pixels on both sides of the data line is the same, that is, when the adjacent sub-pixel on the left side of the data line is H, the adjacent sub-pixel on the right side of the data line is H, and vice versa. The first driving voltage and the second driving voltage are alternately loaded for every four sub-pixels along the data line.
From a certain line, the gray scale voltages of two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two, from a certain column, the gray-scale voltages loaded into the sub-pixels are alternately transformed, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
Referring to
Specifically, the method includes:
Loading the first driving voltage or the second driving voltage to adjacent pixel sub-pixels to the pixel matrix in a data line direction; and
Or in a frame, along the data line direction, loading the first driving voltage and the second driving voltage alternately to adjacent sub-pixels, and gray scales on adjacent sub-pixels on both sides of the data line are different;
Or in a frame, along the data line direction, loading the second driving voltage of the first driving voltage alternately to adjacent sub-pixels, and gray scales on adjacent sub-pixels on both sides of the data line are the same;
In the method, the original pixel data of the embodiment corresponds to a set of gray scale values. In the data driving circuit, the original data driving signal corresponding to the gray scale value is generated, and the original data driving signal is adjusted to two different driving voltages. That is, the first driving voltage or the second driving voltage is output correspondingly, in this embodiment, by using two sets of different gammas to generate driving signals for driving sub-pixels, a set of original data driving signals are generated under different gamma to generate two sets of driving voltages, and then the driving control of the present invention is implemented. In a specific implementation of the solution of the embodiment, the TCON outputs a set of gray scales, and the data driving circuit generates two sets of gammas, and each group respectively drives different sub-pixels, thereby achieving the same technical effect as the first embodiment.
In a specific embodiment, the step of obtaining original data driving signals for each pixel positions according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and obtaining the original data driving signals according to the original gray scale value.
The timing controller of the present invention analyzes the original image, analyzes the original gray scale value of each pixel position, and determines a conversion rule corresponding to the position, and the conversion rule adjusts the original gray scale value to a high gray scale H or a low gray scale L. The method of the present invention does not directly perform gray scale conversion in the timing controller, and sends the original gray scale value and the corresponding H or L conversion rule to the data driving unit, the data driving unit directly outputs the corresponding driving voltage according to the original gray scale value and the corresponding H or L according to the rule.
For example, in one embodiment, the original gray scale value of the A position is 128 gray scales, and 128 gray scales are output for the A position. According to the conversion rule, the position of A should be H. After the driver circuit receives 128 gray scales, find the corresponding voltage 10V in the gray-scale corresponding voltage conversion table of H, and finally output the driving voltage signal of 10V to the A position.
For example, the original gray scale value of the B position is 128 gray scale, for the B position output 128 gray scale according to the conversion rule B position should be L drive circuit after receiving 128 gray scale, find the corresponding voltage 8V in the gray scale corresponding pressure conversion table of L, and finally output 8V data signal to the B position.
In this embodiment, the reasonable high gray scale voltage is matched with the low gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, and the problems such as crosstalk, bright and dark lines are avoided, and the display effect is improved.
In a specific embodiment, in order to more clearly show the solution of the first embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific implementation, the voltages applied to the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 have the same polarity, and the polarity of the voltage applied to the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8 is opposite.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a positive low-gray scale voltage to the second pixel A2, which can be expressed as LP; loading a negative polarity high gray scale voltage to the third pixel A3, which can be expressed as HN; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive low-gray scale voltage to the fifth pixel A5, which can be expressed as LP; loading a positive polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HP; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading a negative polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, LP, HN, LN, HP, LP, HN, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, LP, HN, LN, HP, LP, HN, LN . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a negative polarity gray scale voltage to the second pixel A2, which can be expressed as LN; loading a positive polarity high gray scale voltage to the third pixel A3, which can be expressed as HP; loading a positive low-gray scale voltage to the fourth pixel A4, which can be expressed as LP; loading a negative low gray scale voltage to the fifth pixel A5, which can be expressed as LN; loading a negative polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HN; loading a positive low-gray scale voltage to the seventh pixel A7, which can be expressed as LP; loading a positive polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, LN, HP, LP, HN, LN, HP, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, LN, HP, LP, HN, LN, HP, LP . . . sequentially cycle.
In a specific embodiment, in order to more clearly show the solution of the second embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8.
The voltage gray scales loaded onto the first pixel A1, the second pixel A2, the seventh pixel A7, and the eighth pixel A8 are different from the voltage gray scales loaded onto the third pixel A3, the fourth pixel A4, the fifth pixel A5, and the sixth pixel A6.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a positive polarity high gray scale voltage to the second pixel A2, which can be expressed as HP; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive low-gray scale voltage to the fifth pixel A5, which can be expressed as LP; loading a positive low-gray scale voltage to the sixth pixel A6, which can be expressed as LP; loading a negative polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HN; loading a negative polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, LP, HN, LN, HP, LP, HN, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, HP, LN, LN, HP, HP, LN, LN . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a negative polarity high gray scale voltage to the second pixel A2, which can be expressed as HN; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a positive low-gray scale voltage to the fourth pixel A4, which can be expressed as LP; loading a negative low gray scale voltage to the fifth pixel A5, which can be expressed as LN; loading a negative polarity gray scale voltage to the sixth pixel A6, which can be expressed as LN; loading a positive polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HP; loading a positive polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, LN, HP, LP, HN, LN, HP, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, HN, LP, LP, HN, HN, LP, LP . . . sequentially cycle.
In a specific embodiment, in order to more clearly show the solution of the second embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8.
In a specific embodiment, the voltage gray scales loaded onto the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 are different from the voltage gray scales loaded onto the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a positive polarity high gray scale voltage to the second pixel A2, which can be expressed as HP; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HP; loading a positive polarity high gray scale voltage to the sixth pixel A, which can be expressed as HP; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading a negative polarity gray scale voltage to the eighth pixel A8, which can be expressed as LN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, HP, LN, LN, HP, HP, LN, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, HP, LN, LN, HP, HP, LN, LN . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a negative polarity high gray scale voltage to the second pixel A2, which can be expressed as HN; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a positive low-gray scale voltage to the fourth pixel A4, which can be expressed as LP; loading a negative polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HN; loading a negative polarity high gray scale voltage to the sixth pixel A, which can be expressed as HN; loading a positive low-gray scale voltage to the seventh pixel A7, which can be expressed as LP; loading a positive low-gray scale voltage to the eighth pixel A8, which can be expressed as LP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, HN, LP, LP, HN, HN, LP, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, HN, LP, LP, HN, HN, LP, LP . . . sequentially cycle.
Referring to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Referring to
Further, the pixel matrix includes a plurality of sub-pixels arranged in a matrix, and a voltage applied along the data line changes a polarity once every two sub-pixels, and any one of the data lines controls a voltage input of one sub-pixel on both sides thereof. In the direction of the data line, the voltage applied to the sub-pixel is changed once every two sub-pixels, and the voltage applied to the sub-pixels in the direction of the scan line is changed once every two sub-pixels. Specifically, for the sub-pixel polarity, both the scan line direction and the data line direction are 2N inverted, and the data line polarity inversion mode is 4N.
Specifically, the method may include the following steps:
Wherein, the image data refers to a digital signal input to the timing controller TCON, and the image data is input frame by frame, and the original pixel data is parsed by the image data. In one of the prior arts, the original pixel data, that is, a specific gray scale value corresponding to each sub-pixel in the pixel matrix corresponding to the display, the gray scale value input to each sub-pixel is directly determined by the image data input into the TCON, and the original pixel data is not processed. Such methods are affected by the polarity of the sub-pixels, which causes the sub-pixel polarity to easily cause crosstalk, bright and dark lines and other negative effects.
In this embodiment, by processing the original pixel data, further first gray scale data and second gray scale data are obtained, and the gray scales of the first gray scale data and the second gray scale data are different. Furthermore, the image is loaded into the corresponding sub-pixels at different intervals between different pixels or between different frames. The solution in this embodiment can generate two sets of different gray scales, respectively corresponding to different sub-pixels. In this way, it is possible to prevent the voltage applied to the sub-pixel from being affected by the polarity inversion, thereby avoiding the occurrence of crosstalk and bright and dark lines.
In a specific example, the first gray scale data is considered to be high gray scale data, and the second gray scale data is considered to be low gray scale data. Correspondingly, the magnitude of the voltage input to the sub-pixel is determined by the gray scale, the high gray scale voltage generated corresponding to the high gray scale data, that is, the first driving voltage; and the low gray scale voltage generated corresponding to the low gray scale data, that is, the second driving voltage. It is worth mentioning that the above-mentioned high gray scale and low gray scale represent the relative values of the gray scale sizes of the two groups, and the magnitude of the values is not separately limited.
Referring to
In a specific embodiment, the step of obtaining a first gray scale data and a second gray scale data according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and converting the original gray scale value of each pixel position into the first gray scale data or the second gray scale data according to a predetermined conversion manner.
After determining the gray scale corresponding to each pixel position according to the rule of the present invention, the timing controller adjusts the original gray scale correspondence of the pixel position to a high gray scale or a low gray scale, and transmits the adjusted gray scale value to the data driving unit, and the number driving unit outputs the corresponding voltage according to the gray scale value.
For example, the original gray scale value of the A position is 128 gray scale. If the above rule according to the present invention, the A position should output a high gray scale, that is, H, after calculation, in this example, 128 gray scale corresponding H=138 gray scale value, then output 138 gray scale to the A position, the data driving unit receives 138 gray scale, according to the established conversion rule, the voltage corresponding to 138 gray scale is 10V, and finally the voltage signal of 10V is output to the A position. Generally, the adjustment range of the high and low gray scales is determined by the difference of materials such as liquid crystal.
For another example, the original gray scale value of the B position is 128 gray scale. If the above rule is used according to the present invention, the B position should output a low gray scale, that is, L, after calculation, in this example, the 128 gray scale corresponds to the L=118 gray scale value, then the output is 118 gray scale to the B position, and the data driving unit receives the 118 gray scale, according to the established conversion rules, the voltage corresponding to the gray scale of 118 is 8V, and finally the voltage signal of 8V is output to the B position.
In a specific embodiment, the step of loading the first driving voltage or the second driving voltage to the pixel matrix along the data lines includes:
The pixel matrix is physically divided into a plurality of small blocks arranged in a matrix by a plurality of interleaved data lines and scan lines, and each small block is one sub-pixel.
For example, refer to
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
From a certain column, the gray scale voltages applied to two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two, from a certain line, the gray-scale voltages loaded into the sub-pixels alternately change, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
Referring to
Specifically, the method includes:
Loading the first driving voltage or the second driving voltage to adjacent pixel sub-pixels to the pixel matrix in a data line direction; and
Or, within one frame, loading the first driving voltage and the second driving voltage alternately into every two sub-pixels in a data line direction; and
In the method, the original pixel data of the embodiment corresponds to a set of gray scale values. In the data driving circuit, the original data driving signal corresponding to the gray scale value is generated, and the original data driving signal is adjusted to two different driving voltages. That is, the first driving voltage or the second driving voltage is output correspondingly, in this embodiment, by using two sets of different gammas to generate driving signals for driving sub-pixels, a set of original data driving signals are generated under different gamma to generate two sets of driving voltages, and then the driving control of the present invention is implemented. In a specific implementation of the solution of the embodiment, the TCON outputs a set of gray scales, and the data driving circuit generates two sets of gammas, and each group respectively drives different sub-pixels, thereby achieving the same technical effect as the first embodiment.
In a specific embodiment, the step of obtaining original data driving signals for each pixel positions according to the original pixel data includes:
The timing controller of the present invention analyzes the original image, analyzes the original gray scale value of each pixel position, and determines a conversion rule corresponding to the position, and the conversion rule adjusts the original gray scale value to a high gray scale H or a low gray scale L. The method of the present invention does not directly perform gray scale conversion in the timing controller, and sends the original gray scale value and the corresponding H or L conversion rule to the data driving unit, the data driving unit directly outputs the corresponding driving voltage according to the original gray scale value and the corresponding H or L according to the rule.
For example, in one embodiment, the original gray scale value of the A position is 128 gray scales, and 128 gray scales are output for the A position. According to the conversion rule, the position of A should be H. After the driver circuit receives 128 gray scales, find the corresponding voltage 10V in the gray-scale corresponding voltage conversion table of H, and finally output the driving voltage signal of 10V to the A position.
For example, the original gray scale value of the B position is 128 gray scale, for the B position output 128 gray scale according to the conversion rule B position should be L drive circuit after receiving 128 gray scale, find the corresponding voltage 8V in the gray scale corresponding pressure conversion table of L, and finally output 8V data signal to the A position.
In this embodiment, the reasonable high gray scale voltage is matched with the low gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, and the problems such as crosstalk, bright and dark lines are avoided, and the display effect is improved.
In a specific embodiment, in order to more clearly show the solution of the tenth embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 have the same polarity and are opposite in polarity to the voltages applied to the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a negative polarity gray scale voltage to the second pixel A2, which can be expressed as LN; loading a negative polarity high gray scale voltage to the third pixel A3, which can be expressed as HN; loading a positive low-gray scale voltage to the fourth pixel A4, which can be expressed as LP; loading a negative low gray scale voltage to the fifth pixel A5, which can be expressed as LN; loading a positive polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HP; loading a positive low-gray scale voltage to the seventh pixel A7, which can be expressed as LP; loading a negative polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, LN, HN, LP, HP, LN, HN, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, LN, HN, LP, HP, LN, HN, LP . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a positive low-gray scale voltage to the second pixel A2, which can be expressed as LP; loading a positive polarity high gray scale voltage to the third pixel A3, which can be expressed as HP; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive low-gray scale voltage to the fifth pixel A5, which can be expressed as LP; loading a negative polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HN; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading a positive polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, LP, HP, LN, HN, LP, HP, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, LP, HP, LN, HN, LP, HP, LN . . . sequentially cycle.
In a specific embodiment, in order to more clearly show the solution of the eleventh embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 have the same polarity and are opposite in polarity to the voltages applied to the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the fifth pixel A5, and the seventh pixel A7 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the sixth pixel A6, and the eighth pixel A8. Or the voltage gray scale loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 is different from the voltage gray scale loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive low-gray scale voltage to the first pixel A1, which can be expressed as LP; loading a negative polarity high gray scale voltage to the second pixel A2, which can be expressed as HN; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a positive polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HP; loading a negative polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HN; loading a positive low-gray scale voltage to the sixth pixel A6, which can be expressed as LP; loading a positive polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HP; loading the negative polarity gray scale voltage to the eighth pixel A8, which can be expressed as LN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LP, HN, HN, LP, LP, HN, HN, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LP, HN, LN, HP, LP, HN, LN, HP . . . sequentially cycle.
Or, loading a negative polarity gray scale voltage to the first pixel A1, which can be expressed as LN; loading a positive polarity high gray scale voltage to the second pixel A2, which can be expressed as HP; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a negative polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HN; loading a positive polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HP; loading a negative polarity gray scale voltage to the sixth pixel A6, which can be expressed as LN; loading a negative polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HN; loading a positive low-gray scale voltage to the eighth pixel A8, which can be expressed as LP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LN, HP, HP, LN, LN, HP, HP, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LN, HP, LP, HN, LN, HP, LP, HN . . . sequentially cycle.
In a specific embodiment, in order to more clearly show the solution of the eleventh embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 have the same polarity and are opposite in polarity to the voltages applied to the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the fifth pixel A5, and the seventh pixel A7 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the sixth pixel A6, and the eighth pixel A8. Or the voltage gray scale loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 is different from the voltage gray scale loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive low-gray scale voltage to the first pixel A1, which can be expressed as LP; loading a negative polarity high gray scale voltage to the second pixel A2, which can be expressed as HN; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a positive polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HP; loading a negative low gray scale voltage to the fifth pixel A5, which can be expressed as LN; loading a positive polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HP; loading a positive low-gray scale voltage to the seventh pixel A7, which can be expressed as LP; loading a negative polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LP, LN, HN, HP, LP, LN, HN, HP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LP, HN, LN, HP, LP, HN, LN, HP . . . sequentially cycle.
Or, loading a negative polarity gray scale voltage to the first pixel A1, which can be expressed as LN; loading a positive polarity high gray scale voltage to the second pixel A2, which can be expressed as HP; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a negative polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HN; loading a positive low-gray scale voltage to the fifth pixel A5, which can be expressed as LP; loading a negative polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HN; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading a positive polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LN, LP, HP, HN, LN, LP, HP, HN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LN, HP, LP, HN, LN, HP, LP, HN . . . sequentially cycle.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Referring to
Further, the pixel matrix includes a plurality of sub-pixels arranged in a matrix, and a voltage applied along the data line changes a polarity once every two sub-pixels, and any one of the data lines controls a voltage input of one sub-pixel on both sides thereof. Specifically, for the sub-pixel polarity, the polarity inversion manner in the scan line direction is 1+2N, the single-point inversion in the data line direction, and the data line polarity inversion mode is 1+2N.
Specifically, the method may include the following steps:
Wherein, the image data refers to a digital signal input to the timing controller TCON, and the image data is input frame by frame, and the original pixel data is parsed by the image data. In one of the prior arts, the original pixel data, that is, a specific gray scale value corresponding to each sub-pixel in each pixel of the pixel matrix, the gray scale value input to each sub-pixel is directly determined by the image data input into the TCON, and the original pixel data is not processed. Such methods are affected by the polarity of the sub-pixels, which causes the sub-pixel polarity to easily cause crosstalk, bright and dark lines and other negative effects.
In this embodiment, by processing the original pixel data, further first gray scale data and second gray scale data are obtained, and the gray scales of the first gray scale data and the second gray scale data are different. Furthermore, the image is loaded into the corresponding sub-pixels at different intervals between different pixels or between different frames. The solution in this embodiment can generate two sets of different gray scales, respectively corresponding to different sub-pixels. In this way, it is possible to prevent the voltage applied to the sub-pixel from being affected by the polarity inversion, thereby avoiding the occurrence of crosstalk and bright and dark lines.
In a specific example, the first gray scale data is considered to be high gray scale data, and the second gray scale data is considered to be low gray scale data. Correspondingly, the magnitude of the voltage input to the sub-pixel is determined by the gray scale, the high gray scale voltage generated corresponding to the high gray scale data, that is, the first driving voltage; and the low gray scale voltage generated corresponding to the low gray scale data, that is, the second driving voltage. It is worth mentioning that the above-mentioned high gray scale and low gray scale represent the relative values of the gray scale sizes of the two groups, and the magnitude of the values is not separately limited.
Referring to
Referring to
In a specific embodiment, the step of obtaining a first gray scale data and a second gray scale data according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and converting the original gray scale value of each pixel position into the first gray scale data or the second gray scale data according to a predetermined conversion manner.
After determining the gray scale corresponding to each pixel position according to the rule of the present invention, the timing controller adjusts the original gray scale correspondence of the pixel position to a high gray scale or a low gray scale, and transmits the adjusted gray scale value to the data driving unit, and the number driving unit outputs the corresponding voltage according to the gray scale value.
For example, the original gray scale value of the A position is 128 gray scale. If the above rule according to the present invention, the A position should output a high gray scale, that is, H, after calculation, in this example, 128 gray scale corresponding H=138 gray scale value, then output 138 gray scale to the A position, the data driving unit receives 138 gray scale, according to the established conversion rule, the voltage corresponding to 138 gray scale is 10V, and finally the voltage signal of 10V is output to the A position. Generally, the adjustment range of the high and low gray scales is determined by the difference of materials such as liquid crystal.
For another example, the original gray scale value of the B position is 128 gray scale. If the above rule is used according to the present invention, the B position should output a low gray scale, that is, L, after calculation, in this example, the 128 gray scale corresponds to the L=118 gray scale value, then the output is 118 gray scale to the B position, and the data driving unit receives the 118 gray scale, according to the established conversion rules, the voltage corresponding to the gray scale of 118 is 8V, and finally the voltage signal of 8V is output to the B position.
In a specific embodiment, the step of loading the first driving voltage or the second driving voltage to the pixel matrix along the data lines includes:
The pixel matrix is physically divided into a plurality of small blocks arranged in a matrix by a plurality of interleaved data lines and scan lines, and each small block is one sub-pixel.
For example, refer to
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The gray scale on the adjacent sub-pixels on both sides of the data line is different, that is, when the adjacent sub-pixel on the left side of the data line is H, the adjacent sub-pixel on the right side of the data line is L, and vice versa.
From a certain column, the gray scale voltages applied to two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two, from a certain line, the gray-scale voltages loaded into the sub-pixels alternately change, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The gray scale on the adjacent sub-pixels on both sides of the data line is different, that is, when the adjacent sub-pixel on the left side of the data line is H, the adjacent sub-pixel on the right side of the data line is L, and vice versa.
From a certain line, the gray scale voltages of two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two. From a certain column, the gray-scale voltages loaded into the sub-pixels are alternately transformed, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
In another driving architecture, reference may be made to
Referring to
Specifically, the method includes:
Loading the first driving voltage or the second driving voltage to adjacent pixel sub-pixels to the pixel matrix in a data line direction; and
Or in a frame, along the data line direction, loading the first driving voltage and the second driving voltage alternately to adjacent sub-pixels, and gray scales on adjacent sub-pixels on both sides of the data line are different; and
Or in a frame, along the data line direction, loading the second driving voltage of the first driving voltage alternately to adjacent sub-pixels, and gray scales on adjacent sub-pixels on both sides of the data line are the same; and
In the method, the original pixel data of the embodiment corresponds to a set of gray scale values. In the data driving circuit, the original data driving signal corresponding to the gray scale value is generated, and the original data driving signal is adjusted to two different driving voltages. That is, the first driving voltage or the second driving voltage is output correspondingly, in this embodiment, by using two sets of different gammas to generate driving signals for driving sub-pixels, a set of original data driving signals are generated under different gamma to generate two sets of driving voltages, and then the driving control of the present invention is implemented. In a specific implementation of the solution of the embodiment, the TCON outputs a set of gray scales, and the data driving circuit generates two sets of gammas, and each group respectively drives different sub-pixels, thereby achieving the same technical effect as the first embodiment.
In a specific embodiment, the step of obtaining original data driving signals for each pixel positions according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and obtaining the original data driving signals according to the original gray scale value.
The timing controller of the present invention analyzes the original image, analyzes the original gray scale value of each pixel position, and determines a conversion rule corresponding to the position, and the conversion rule adjusts the original gray scale value to a high gray scale H or a low gray scale L. The method of the present invention does not directly perform gray scale conversion in the timing controller, and sends the original gray scale value and the corresponding H or L conversion rule to the data driving unit, the data driving unit directly outputs the corresponding driving voltage according to the original gray scale value and the corresponding H or L according to the rule.
For example, in one embodiment, the original gray scale value of the A position is 128 gray scales, and 128 gray scales are output for the A position. According to the conversion rule, the position of A should be H. After the driver circuit receives 128 gray scales, find the corresponding voltage 10V in the gray-scale corresponding voltage conversion table of H, and finally output the driving voltage signal of 10V to the A position.
For example, the original gray scale value of the B position is 128 gray scale, for the B position output 128 gray scale according to the conversion rule B position should be L drive circuit after receiving 128 gray scale, find the corresponding voltage 8V in the gray scale corresponding pressure conversion table of L, and finally output 8V data signal to the A position.
In this embodiment, the reasonable high gray scale voltage is matched with the low gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, and the problems such as crosstalk, bright and dark lines are avoided, and the display effect is improved.
In a specific embodiment, in order to more clearly show the solution of the nineteenth embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 have the same polarity and are opposite in polarity to the voltages applied to the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a negative polarity gray scale voltage to the second pixel A2, which can be expressed as LN; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a positive low-gray scale voltage to the fourth pixel A4, which can be expressed as LP; loading a negative low gray scale voltage to the fifth pixel A5, which can be expressed as LN; loading a positive polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HP; loading a positive low-gray scale voltage to the seventh pixel A7, which can be expressed as LP; loading a negative polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, LN, HP, LN, HP, LN, HP, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, LN, HN, LP, HP, LN, HN, LP . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a positive low-gray scale voltage to the second pixel A2, which can be expressed as LP; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive low-gray scale voltage to the fifth pixel A5, which can be expressed as LP; loading a negative polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HN; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading a positive polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, LP, HN, LP, HN, LP, HN, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, LP, HP, LN, HN, LP, HP, LN . . . sequentially cycle.
In a specific embodiment, in order to more clearly show the solution of the twentieth embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 have the same polarity and are opposite in polarity to the voltages applied to the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the fifth pixel A5, and the seventh pixel A7 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the sixth pixel A6, and the eighth pixel A8.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a negative polarity gray scale voltage to the second pixel A2, which can be expressed as LN; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a positive low-gray scale voltage to the fourth pixel A4, which can be expressed as LP; loading a negative polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HN; loading a positive low-gray scale voltage to the sixth pixel A6, which can be expressed as LP; loading a positive polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HP; loading the negative polarity gray scale voltage to the eighth pixel A8, which can be expressed as LN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, LN, HP, LN, HP, LN, HP, LN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, HN, LP, LN, HP, HN, LP, LN . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a positive low-gray scale voltage to the second pixel A2, which can be expressed as LP; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive low-scale voltage to the fifth pixel A5, which can be expressed as HP; loading a negative polarity gray scale voltage to the sixth pixel A6, which can be expressed as LN; loading a negative polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HN; loading a positive low-gray scale voltage to the eighth pixel A8, which can be expressed as LP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, LP, HN, LP, HN, LP, HN, LP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, HP, LN, LP, HN, HP, LN, LP . . . sequentially cycle.
In a specific embodiment, in order to more clearly show the solution of the twentieth embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes: a first sub-pixel;
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 have the same polarity and are opposite in polarity to the voltages applied to the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
The voltage gray scales loaded onto the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 are different from the voltage gray scales loaded onto the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a positive polarity high gray scale voltage to the first pixel A1, which can be expressed as HP; loading a negative polarity gray scale voltage to the second pixel A2, which can be expressed as LN; loading a positive low-gray scale voltage to the third pixel A3, which can be expressed as LP; loading a negative polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HN; loading a negative low gray scale voltage to the fifth pixel A5, which can be expressed as LN; loading a positive polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HP; loading a negative polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HN; loading a positive low-gray scale voltage to the eighth pixel A8, which can be expressed as LP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HP, LN, LP, HN, HP, LN, LP, HN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HP, LN, HP, LN, HP, LN, HP, LN . . . sequentially cycle.
Or, loading a negative polarity high gray scale voltage to the first pixel A1, which can be expressed as HN; loading a positive low-gray scale voltage to the second pixel A2, which can be expressed as LP; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a positive polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HP; loading a positive low-gray scale voltage to the fifth pixel A5, which can be expressed as LP; loading a negative polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HN; loading a positive polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HP; loading the negative polarity gray scale voltage to the eighth pixel A8, which can be expressed as LN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: HN, LP, LN, HP, HN, LP, LN, HP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: HN, LP, HN, LP, HN, LP, HN, LP . . . sequentially cycle.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
fourth row of scan lines G4, and loading the voltage corresponding to HP to the sixth pixel A6 on the first data line D1, loading the voltage corresponding to the HN on the second data line D2 to the eighth pixel A8, and so on;
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Please refer to
In an optional 4×4 area, in this embodiment, the first pixel A1, the second pixel A2, the fifth pixel A5, the sixth pixel A6, the ninth pixel A9, the tenth pixel A10, the thirteenth pixel A13, and the fourteenth pixel A14 are connected to the first data line D1, the third pixel A3, the fourth pixel A4, the seventh pixel A7, the eighth pixel A8, the eleventh pixel A11, the twelfth pixel A12, the fifteenth pixel A15, the sixteenth pixel A16 are connected to the second data line D2;
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Referring to
Further, the pixel matrix includes a plurality of sub-pixels arranged in a matrix, and adjacent data lines have opposite polarities, that is, the data line polarity is column inversion. In one row, any one of the data lines controls the voltage input of the two sub-pixels on one side, and the voltage applied to the sub-pixels in the direction of the data line changes a polarity for each sub-pixel, and in the direction of the scan line, the voltage applied to the sub-pixels is changed once every two sub-pixels. Specifically, for the sub-pixel polarity, the inversion mode in the scan line direction is 2N inversion, and the inversion in the data line direction is 1+2N inversion.
Specifically, the method may include the following steps:
Wherein, the image data refers to a digital signal input to the timing controller TCON, and the image data is input frame by frame, and the original pixel data is parsed by the image data. In an existing technique, the original pixel data, that is, a specific gray scale value corresponding to each sub-pixel in the pixel matrix, is displayed in each frame. The gray scale value input to each sub-pixel is directly determined by the image data input into the TCON, and the original pixel data is not processed. Such methods are affected by the polarity of the sub-pixels, which causes the sub-pixel polarity to easily cause negative effects such as crosstalk and dark lines.
In this embodiment, by processing the original pixel data, further first gray scale data and second gray scale data are obtained, and the gray scales of the first gray scale data and the second gray scale data are different. Furthermore, the image is loaded into the corresponding sub-pixels at different intervals between different pixels or between different frames. The solution in this embodiment can generate two sets of different gray scales, respectively corresponding to different sub-pixels. In this way, it is possible to prevent the voltage applied to the sub-pixel from being affected by the polarity inversion, thereby avoiding the occurrence of crosstalk and bright and dark lines.
In a specific example, the first gray scale data is considered to be high gray scale data, and the second gray scale data is considered to be low gray scale data. Correspondingly, the magnitude of the voltage input to the sub-pixel is determined by the gray scale, the high gray scale voltage generated corresponding to the high gray scale data, that is, the first driving voltage; and the low gray scale voltage generated corresponding to the low gray scale data, that is, the second driving voltage. It is worth mentioning that the above-mentioned high gray scale and low gray scale represent the relative values of the gray scale sizes of the two groups, and the magnitude of the values is not separately limited.
Referring to
In a specific embodiment, the step of obtaining a first gray scale data and a second gray scale data according to the original pixel data includes: obtaining an original gray scale value of each pixel position according to the original pixel data, and converting the original gray scale value of each pixel position into the first gray scale data or the second gray scale data according to a predetermined conversion manner.
After determining the gray scale corresponding to each pixel position according to the rule of the present invention, the timing controller adjusts the original gray scale correspondence of the pixel position to a high gray scale or a low gray scale, and sends the adjusted gray scale value to the data driving unit, and the number driving unit outputs a corresponding voltage according to the gray scale value.
For example, the original gray scale value of the A position is 128 gray scale. If the above rule according to the present invention, the A position should output a high gray scale, that is, H, after calculation, in this example, 128 gray scale corresponding H=138 gray scale value, then output 138 gray scale to the A position, the data driving unit receives 138 gray scale, according to the established conversion rule, the voltage corresponding to 138 gray scale is 10V, and finally the voltage signal of 10V is output to the A position. Generally, the adjustment range of the high and low gray scales is determined by the difference of materials such as liquid crystal.
For another example, the original gray scale value of the B position is 128 gray scale. If the above rule is used according to the present invention, the B position should output a low gray scale, that is, L, after calculation, in this example, the 128 gray scale corresponds to the L=118 gray scale value, then the output is 118 gray scale to the B position, and the data driving unit receives the 118 gray scale, according to the established conversion rules, the voltage corresponding to the gray scale of 118 is 8V, and finally the voltage signal of 8V is output to the B position.
In a specific embodiment, the step of loading the first driving voltage or the second driving voltage to the pixel matrix along the data lines includes:
The pixel matrix is physically divided into a plurality of small blocks arranged in a matrix by a plurality of interleaved data lines and scan lines. Each small block is one sub-pixel, and each two sub-pixels are divided by a corresponding one of the data lines or the scan lines. In the direction of the data line, the first driving voltage or the second driving voltage is alternately loaded to the pixel matrix representation every other scan line, as far as a column is concerned, different driving voltages are loaded between adjacent sub-pixels; alternatively, as far as a row is concerned, a different driving voltage is applied between each adjacent two sub-pixels; it is alternately applied to the sub-pixels in accordance with the above relationship.
For example, refer to
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The gray scale on the adjacent sub-pixels on both sides of the data line is different, that is, when the adjacent sub-pixel on the left side of the data line is H, the adjacent sub-pixel on the right side of the data line is L, and vice versa.
From a certain line, the gray scale voltages of two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two. From a certain line, the gray-scale voltages loaded into the sub-pixels alternately change, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
For example, refer to
The gray scale on the adjacent sub-pixels on both sides of the data line is different, that is, when the adjacent sub-pixel on the left side of the data line is H, the adjacent sub-pixel on the right side of the data line is H. When the adjacent sub-pixel on the left side of the data line is L, the adjacent sub-pixel on the right side of the data line is L.
From a certain line, the gray scale voltages of two consecutive sub-pixels are the same, and the gray scale voltages of two consecutive sub-pixels loaded are different from the previous two. From a certain line, the gray-scale voltages loaded into the sub-pixels alternately change, and so on. In
The driving method of the pixel matrix of the invention is matched with the low gray scale voltage by a reasonable high gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright dark line and the like are avoided, and the display effect is improved.
Referring to
Specifically, the method includes:
Loading the first driving voltage or the second driving voltage to adjacent pixel sub-pixels to the pixel matrix in a data line direction; and
Or in a frame, along the data line direction, loading the first driving voltage and the second driving voltage alternately to adjacent sub-pixels, and gray scales on adjacent sub-pixels on both sides of the data line are different; and
Or in a frame, along the data line direction, loading the second driving voltage of the first driving voltage alternately to adjacent sub-pixels, and gray scales on adjacent sub-pixels on both sides of the data line are the same; and
In the method, the original pixel data of the embodiment corresponds to a set of gray scale values. In the data driving circuit, the original data driving signal corresponding to the gray scale value is generated, and the original data driving signal is adjusted to two different driving voltages. That is, the first driving voltage or the second driving voltage is output correspondingly, in this embodiment, by using two sets of different gammas to generate driving signals for driving sub-pixels, a set of original data driving signals are generated under different gamma to generate two sets of driving voltages, and then the driving control of the present invention is implemented. In a specific implementation of the solution of the embodiment, the TCON outputs a set of gray scales, and the data driving circuit generates two sets of gammas, and each group respectively drives different sub-pixels, thereby achieving the same technical effect as the first embodiment.
In a specific embodiment, the step of obtaining original data driving signals for each pixel positions according to the original pixel data includes:
The timing controller of the present invention analyzes the original image, analyzes the original gray scale value of each pixel position, and determines a conversion rule corresponding to the position, and the conversion rule adjusts the original gray scale value to a high gray scale H or a low gray scale L. The method of the present invention does not directly perform gray scale conversion in the timing controller, and sends the original gray scale value and the corresponding H or L conversion rule to the data driving unit, the data driving unit directly outputs the corresponding driving voltage according to the original gray scale value and the corresponding H or L according to the rule.
For example, in one embodiment, the original gray scale value of the A position is 128 gray scales, and 128 gray scales are output for the A position. According to the conversion rule, the position of A should be H. After the driver circuit receives 128 gray scales, find the corresponding voltage 10V in the gray-scale corresponding voltage conversion table of H, and finally output the driving voltage signal of 10V to the A position.
For example, the original gray scale value of the B position is 128 gray scale, for the B position output 128 gray scale according to the conversion rule B position should be L drive circuit after receiving 128 gray scale, find the corresponding voltage 8V in the gray scale corresponding pressure conversion table of L, and finally output 8V data signal to the A position.
In this embodiment, the reasonable high gray scale voltage is matched with the low gray scale voltage, so that the pixels in the pixel matrix are not affected by the polarity, and the problems such as crosstalk, bright and dark lines are avoided, and the display effect is improved.
In a specific embodiment, in order to more clearly show the solution of the twenty-ninth embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8.
The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a negative polarity gray scale voltage to the first pixel A1, which can be expressed as LN; loading a negative polarity high gray scale voltage to the second pixel A2, which can be expressed as HN; loading a positive low-gradation voltage to the third pixel A3, which can be expressed as LP; loading a positive polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HP; loading a negative polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HN; loading a negative polarity gray scale voltage to the sixth pixel A6, which can be expressed as LN; loading a positive polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HP; loading a positive low-gradation voltage to the eighth pixel A8, which can be expressed as LP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LN, HN, LP, HP, LN, HN, LP, HP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LN, HN, LP, HP, LN, HN, LP, HP . . . sequentially cycle.
Or, loading a positive low-gradation voltage to the first pixel A1, which can be expressed as LP; loading a positive polarity high gray scale voltage to the second pixel A2, which can be expressed as HP; loading a negative low gray scale voltage to the third pixel A3, which can be expressed as LN; loading a negative polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HN; loading a positive polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HP; loading a positive low-gradation voltage to the sixth pixel A6, which can be expressed as LP; loading a negative polarity high gray scale voltage to the seventh pixel A7, which can be expressed as HN; loading the negative polarity gray scale voltage to the eighth pixel A8, which can be expressed as LN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LP, HP, LN, HN, LP, HP, LN, HN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LP, HP, LN, HN, LP, HP, LN, HN . . . sequentially cycle.
In another embodiment, the voltages applied to the first pixel A1, the second pixel A2, the seventh pixel A7, and the eighth pixel A8 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the fifth pixel A5, and the sixth pixel A6. The voltage gray scales loaded onto the first pixel A1, the third pixel A3, the sixth pixel A6, and the eighth pixel A8 are different from the voltage gray scales loaded onto the second pixel A2, the fourth pixel A4, the fifth pixel A5, and the seventh pixel A7. In this driving mode, other pixels are correspondingly arranged in the above manner. And the gray-scale voltage relationship loaded on the pixel is re-acquired according to the above example, and will not be described again.
In a specific embodiment, in order to more clearly show the solution of the thirtieth embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8.
The voltages applied to the first pixel A1, the second pixel A2, the seventh pixel A7, and the eighth pixel A8 have the same gray scale, that is, the same as H or the same as L, and opposite to the voltage gray scale loaded on the third pixel A3, the fourth pixel A4, the fifth pixel A5, and the sixth pixel A6.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a negative polarity gray scale voltage to the first pixel A1, which can be expressed as LN; loading a negative polarity gray scale voltage to the second pixel A2, which can be expressed as LN; loading a positive polarity high gray scale voltage to the third pixel A3, which can be expressed as HP; loading a positive polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HP; loading a negative polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HN; loading a negative polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HN; loading a positive low-gradation voltage to the seventh pixel A7, which can be expressed as LP; loading a positive low-gradation voltage to the eighth pixel A8, which can be expressed as LP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LN, HN, LP, HP, LN, HN, LP, HP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LN, LN, HP, HP, LN, LN, HP, HP . . . sequentially cycle.
Or, within one frame, loading a positive low-gradation voltage to the first pixel A1, which can be expressed as LP; loading a positive low-gradation voltage to the second pixel A2, which can be expressed as LP; loading a negative polarity high gray scale voltage to the third pixel A3, which can be expressed as HN; loading a negative polarity high gray scale voltage to the fourth pixel A4, which can be expressed as HN; loading a positive polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HP; loading a positive polarity high gray scale voltage to the sixth pixel A6, which can be expressed as HP; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading the negative polarity gray scale voltage to the eighth pixel A8, which can be expressed as LN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LP, HP, LN, HN, LP, HP, LN, HN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LP, LP, HN, HN, LP, LP, HN, HN . . . sequentially cycle.
In another embodiment, the voltages applied to the first pixel A1, the second pixel A2, the seventh pixel A7, and the eighth pixel A8 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the fifth pixel A5, and the sixth pixel A6. The voltages applied to the first pixel A1, the second pixel A2, the seventh pixel A7, and the eighth pixel A8 are the same gray scale, that is, both H or the same L, and are opposite to the voltage gray scales applied to the third pixel A3, the fourth pixel A4, the fifth pixel A5, and the sixth pixel A6. In this driving mode, other pixels are correspondingly arranged in the above manner. And the gray-scale voltage relationship loaded on the pixel is re-acquired according to the above example, and details are not described herein again.
In a specific embodiment, in order to more clearly show the solution of the thirty-first embodiment of the present invention, the pixel matrix includes a plurality of sub-pixel areas, and each of the sub-pixel areas includes:
Referring to
In a specific embodiment, the voltages applied to the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the seventh pixel A7, and the eighth pixel A8.
The voltages applied to the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 are the same gray scale, that is, both H or the same L, and opposite to the voltage gray scale loaded onto the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8.
According to the above-mentioned cooperation relationship between the polarity of the voltage applied to the sub-pixel and the gray scale of the voltage, a specific embodiment is shown. Within one frame, loading a negative polarity gray scale voltage to the first pixel A1, which can be expressed as LN; loading a negative polarity high gray scale voltage to the second pixel A2, which can be expressed as HN; loading a positive polarity high gray scale voltage to the third pixel A3, which can be expressed as HP; loading a positive low-gradation voltage to the fourth pixel A4, which can be expressed as LP; loading a negative polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HN; loading a negative polarity gray scale voltage to the sixth pixel A6, which can be expressed as LN; loading a positive low-gradation voltage to the seventh pixel A7, which can be expressed as LP; loading a positive polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HP.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LN, HN, LP, HP, LN, HN, LP, HP . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is sequentially expressed as: LN, HN, HP, LP, LN, HN, HP, LP . . . sequentially cycle.
Or, within one frame, loading a positive low-gradation voltage to the first pixel A1, which can be expressed as LP; loading a positive polarity high gray scale voltage to the second pixel A2, which can be expressed as HP; loading a negative polarity high gray scale voltage to the third pixel A3, which can be expressed as HN; loading a negative polarity gray scale voltage to the fourth pixel A4, which can be expressed as LN; loading a positive polarity high gray scale voltage to the fifth pixel A5, which can be expressed as HP; loading a positive low-gradation voltage to the sixth pixel A6, which can be expressed as LP; loading a negative polarity gray scale voltage to the seventh pixel A7, which can be expressed as LN; loading a negative polarity high gray scale voltage to the eighth pixel A8, which can be expressed as HN.
In order to more clearly describe the above voltage loading relationship, from a certain column, the voltage relationship loaded for each sub-pixel in any column is sequentially expressed as: LP, HP, LN, HN, LP, HP, LN, HN . . . sequentially cycle; from a certain line, the voltage relationship loaded for each sub-pixel in any row is expressed as follows: LP, HP, HN, LN, LP, HP, HN, LN . . . sequentially cycle.
In another embodiment, the voltages applied to the first pixel A1, the second pixel A2, the seventh pixel A7, and the eighth pixel A8 have the same polarity, and are opposite in polarity to the voltages applied to the third pixel A3, the fourth pixel A4, the fifth pixel A5, and the sixth pixel A6. The voltages applied to the first pixel A1, the fourth pixel A4, the sixth pixel A6, and the seventh pixel A7 are the same gray scale, that is, both H or the same L, and are opposite to the voltage gray scales applied to the second pixel A2, the third pixel A3, the fifth pixel A5, and the eighth pixel A8. In this driving mode, other pixels are correspondingly arranged in the above manner. And the gray-scale voltage relationship loaded on the pixel is re-acquired according to the above example, and details are not described herein again.
Please refer to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
Referring to
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
In the embodiment of the present invention, the side visibility can be improved by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix. The pixels in the pixel matrix are not affected by the polarity, the crosstalk, the bright and dark lines and the like are improved, and the display effect is improved.
Referring to
in an optional 4×4 area, in this embodiment, the first pixel A1, the second pixel A2, the fifth pixel A5, and the sixth pixel A6 are connected to the first data line D1, the third pixel A3, the fourth pixel A4, the seventh pixel A7, the eighth pixel A8, the ninth pixel A9, the tenth pixel A10, the thirteenth pixel A13, and the fourteenth pixel A14 are connected to the second data line D2, the eleventh pixel A11, the twelfth pixel A12, the fifteenth pixel A15, the sixteenth pixel A16 are connected to the third data line D3;
This scheme lists the voltage loading in the case of 4×4, and the other sub-pixels and other times are sequentially loaded with the corresponding voltages according to the above rules.
According to the above embodiment of the present invention, by alternately loading the positive and negative polarity voltages and the high and low gray scale voltages to the pixel matrix, the side visibility can be improved, and the pixels in the pixel matrix are not affected by the polarity, which improves crosstalk, bright and dark lines, and the like, and improves the display effect.
In addition, please refer to
In a specific embodiment, the timing controller 81 is configured to receive image data, acquire original pixel data according to the image data, obtain first gray scale data and second gray scale data according to the original pixel data, and output the first gray scale data and the second gray scale data to the data driving unit 82; the data driving unit 82 is configured to generate a first driving voltage according to the first gray scale data and generate a second driving voltage according to the second gray scale data, and in a frame, is also used to load a first driving voltage corresponding to the first gray scale data or a second driving voltage corresponding to the second gray scale data in the data line direction to the pixel matrix 85; and the scan driving unit 83 is configured to load a scan signal to the pixel matrix 85. The display panel 84 includes a plurality of data lines, a plurality of scan lines, and a plurality of sub-pixels connected to the data lines and the scan lines. The sub-pixels are arranged on the display panel 84 in the data line direction and along the scan line direction to form a pixel matrix 85.
Specifically, the timing controller 81 inputs an RGB data signal of an image from the outside, such as red image data R, green image data G, blue image data B, or image data of other colors, and generates corresponding original pixel data according to the image data, and causes the original pixel data to correspond to two sets of gray scales according to the above rule of the present invention, that is High gray scale data and low gray scale data. The data driving unit 82 converts the high gray scale data and the low gray scale data into a corresponding high gray scale voltage and low gray scale voltage by using a fixed gamma. The data driving unit 82 controls a specific output operation according to the above method of the present invention, and outputs an output of high gray scale, low gray scale, positive voltage, and negative voltage in accordance with timing correspondence.
In another specific embodiment, the timing controller 81 is configured to receive image data, acquire original pixel data according to the image data, and obtain an original data driving signal of each pixel position according to the original pixel data; the data driving unit 82 is configured to convert the original data driving signal into a first driving voltage or a second driving voltage according to a preset conversion rule, and in one frame, to load the first driving voltage or the second driving voltage to the pixel matrix 85 in a data line direction; and the scan driving unit 83 is configured to load a scan signal to the pixel matrix 85.
Specifically, the timing controller 81 inputs image data from the outside, generates corresponding original pixel data from the image data, and outputs the original data driving signal to the data driving unit 82. Since the data driving unit 82 only receives the original gray scale value and the corresponding H or L conversion rule, the data driving unit 82 generates a high gamma high gray scale voltage and a low gamma low gray scale voltage through two different gamma correspondences. The data driving unit 82 controls a specific output operation according to the above method of the present invention, and outputs an output of high gray scale, low gray scale, positive voltage, and negative voltage in accordance with timing correspondence.
The functional details of the timing controller 81 and the data driving unit 82 of the present embodiment are not described herein again, and reference may be made to the related descriptions of the foregoing first to thirty-eighth embodiments.
The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.
This application is a division of U.S. patent application Ser. No. 16/391,516, filed on Apr. 23, 2019, the disclosure of which is incorporated herein by reference in its entirety.
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Number | Date | Country | |
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20210217373 A1 | Jul 2021 | US |
Number | Date | Country | |
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Parent | 16391516 | Apr 2019 | US |
Child | 17218412 | US |