This application claims the benefit and priority of Chinese Patent Application No. 201510036782.9 filed Jan. 23, 2015. The entire disclosure of the above application is incorporated herein by reference.
The present disclosure relates to the field of display technologies and particularly to an image display method and device.
This section provides background information related to the present disclosure which is not necessarily prior art.
A clearer image has been pursued all the time in the field of electronic video display and broadcast, and the definition of an image is improved primarily by improving the resolution of display because a picture can be displayed at more levels at higher resolution so that the picture can be perceived in more colors and details. In order to pursue a higher quality of display, the resolution of display has evolved from the Standard Definition (SD) of 480p to the High Definition (HD) of 720p and further to the Full High Definition (FHD) of 1080p and up to the latest Ultra High Definition (UHD) of 4K at which the display has come to the field of civil applications, so there is an apparent trend of pursuing the high resolution of display in the field of display technologies.
This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
In an aspect, an embodiment of the disclosure provides an image display device applicable to a multi-domain display device, the image display device including a memory and one or more processor, wherein the memory stores one or more computer readable program codes, and the one or more processors are configured to execute the one or more computer readable program codes to perform:
obtaining grayscales of respective pixels in one frame of input image;
determining grayscales of the respective pixels in two adjacent frames of output image according to the grayscales of the respective pixels in the frame of input image, wherein for any pixel, the grayscale of the pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the input image, and the grayscale of the pixel in the other frame is lower than the grayscale of the pixel in the input image; and
displaying the two adjacent frames of output image according to the grayscales of the respective pixels in the two adjacent frames of output image.
In another aspect, an embodiment of the disclosure provides an image display device applicable to a multi-domain display device, the image display device including a memory and one or more processor, wherein the memory stores one or more computer readable program codes, and the one or more processors are configured to execute the one or more computer readable program codes to perform:
obtaining grayscales of respective pixels in the i-th frame of input image and the j-th frame of input image, which are two adjacent frames;
determining grayscales of the respective pixels in the i-th frame of output image according to the grayscales of the respective pixels in the i-th frame of input image;
determining grayscales of the respective pixels in the j-th frame of output image according to the grayscales of the respective pixels in the j-th frame of input image, wherein for any pixel, the grayscale of the pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image; and displaying the i-th frame of output image and the j-th frame of output image.
In a further aspect, an embodiment of the disclosure provides an image display method applicable to a multi-domain display device, the method including:
obtaining grayscales of respective pixels in one frame of input image;
determining grayscales of the respective pixels in two adjacent frames of output image according to the grayscales of the respective pixels in the one frame of input image, wherein for any pixel, the grayscale of the pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the input image, and the grayscale of the pixel in the other one of the two adjacent frames of output image is lower than the grayscale of the pixel in the input image; and
displaying the two adjacent frames of output image according to the grayscales of the respective pixels in the two adjacent frames of output image.
In a still further aspect, an embodiment of the disclosure provides another image display method applicable to a multi-domain display device, the method including:
obtaining grayscales of respective pixels in the i-th frame of input image and the j-th frame of input image, which are two adjacent frames;
determining grayscales of the respective pixels in the i-th frame of output image according to the grayscales of the respective pixels in the i-th frame of input image;
determining grayscales of the respective pixels in the j-th frame of output image according to the grayscales of the respective pixels in the j-th frame of input image, wherein for any pixel, the grayscale of the pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image; and
displaying the i-th frame of output image and the j-th frame of output image.
Further aspects and areas of applicability will become apparent from the description provided herein. It should be understood that various aspects of this disclosure may be implemented individually or in combination with one or more other aspects. It should also be understood that the description and specific examples herein are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
1—Upper substrate; 2—lower substrate; 11—protrusion on the upper substrate; 13—black matrix; 101—first sub-pixel; 102—second sub-pixel; and 21—protrusion on the lower substrate.
Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.
Example embodiments will now be described more fully with reference to the accompanying drawings.
An display panel at the Ultra High Definition of 4K is provided with pixels, the number of which is increased by a factor of four as compared with a display panel at the Full High Definition, so the resolution at the UHD is four times that at the FHD. Particularly as illustrated in
In order to improve the transmittance ratio, the number of domains on the display panel is generally lowered, for example, by changing original eight domains to four domains, but the angle of view of the display panel may be degraded due to the small number of domains.
The transmittance ratio is generally improved by lowering the number of domains on the display panel, for example, by changing original eight domains to four domains. Both an image display method and device according to the embodiments of the disclosure can be applicable to a multi-domain display device. In order to facilitate understanding of the technical solutions according to the embodiments of the disclosure, firstly the principle of multi-domain display will be described.
As illustrated in
Based upon such a compensation principle, any visual angles can be compensated for by a less number of liquid crystal domains in different directions to thereby achieve a better visual angle effect. As illustrated in
Of course, another chip or the like in the display device can alternatively process the grayscales and input the grayscales of the respective pixels in the frame of image to the liquid crystal display module, although the Tcon processing chip processes the image signal, and obtains and outputs the grayscales of the respective pixels in the frame of image to the liquid crystal display module, as described in details in the embodiment of the disclosure.
In order to enable those skilled in the art to understand the disclosure more clearly, the technical solutions according to the embodiments of the disclosure will be described below in details with reference to the drawings.
Embodiments of the disclosure provide an image display method and device applicable to a multi-domain display device, which can be a TV set, a network video player, etc., in practice. In the embodiments of the disclosure, the multi-domain display device which is a four-domain liquid crystal TV set with the resolution of 3800×2160 will be described as an example.
As illustrated in
Operation 101: obtain grayscales of respective pixels in one frame of input image.
That is, 3800×2160 grayscales corresponding to 3800×2160 pixels are obtained.
Operation 102: determine grayscales of the respective pixels in two adjacent frames of output image from the grayscales of the respective pixels in the one frame of input image, where the grayscale of any pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the input image, and the grayscale of the pixel in the other one of the two adjacent frames of output image is lower than the grayscale of the pixel in the input image.
By way of an example, the grayscale of one of the 3800×2160 pixels in the frame of input image is 160, for example, and the grayscales of the pixel in the two adjacent frames of output image are determined respectively as 120 and 200, that is, the grayscale (i.e., 120) of the pixel in one of the two adjacent frames of output image is lower than the grayscale (i.e., 160) of the pixel in the frame of input image; and the grayscale (i.e., 200) of the pixel in the other one of the two adjacent frames of output image is higher than the grayscale (i.e., 160) of the pixel in the frame of input image. The grayscales of the respective pixels in the two frames of output image determined from the grayscales of the respective pixels in the frame of input image satisfy the relationship above between their sizes, that is, the grayscales of the respective pixels in the frame of input image are displayed respectively by the different grayscales of the two adjacent frames of output image.
The grayscales of the respective pixels in the two adjacent frames of output image are determined from the grayscales of the respective pixels in the one frame of input image. That is, two adjacent frames of output image are determined from each frame of input image, for example, two adjacent frames of output image are determined from a first frame of input image, and further two adjacent frames of output image are determined from a second frame of input image, that is, four frames of output image are determined from the two frames of input image, and the number of frames of output image is twice the number of frames of input image.
It shall be noted here that the grayscale of a pixel corresponds to the transmittance ratio of the pixel. In the embodiment of the disclosure, different grayscales correspond to different transmittance ratios. If the grayscales of the respective pixels in the frame of input image are displayed respectively as the different grayscales in the two adjacent frames of output image, then the average of the grayscales of any pixel in the two adjacent frames of output image can be larger or smaller than or equal to the grayscale of the pixel in the frame of input image, although the embodiment of the disclosure will not be limited thereto.
Operation 103: display the two adjacent frames of output image according to the grayscales of the respective pixels in the two adjacent frames of output image.
That is, data voltage corresponding to the respective pixels is output by a display module of the four-domain liquid crystal TV set to display the two adjacent frames of output image on the display device.
The embodiment of the disclosure provides such an image display method that one frame of input image is displayed respectively as two adjacent frames of output image so that the grayscale of any pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the frame of input image, and the grayscale of the pixel in the other one of the two adjacent frames of output image is lower than the grayscale of the pixel in the frame of input image, so the displayed grayscale is superimposition of the grayscales in the two frames of output image due to the temporal integration effect in human eyes. For the four-domain display device, four different directed vectors of liquid crystals can be seen in each frame, so eight different directed vectors of liquid crystals can be seen two adjacent frames by the human eyes to thereby improve the visual angle for display, that is, a display effect from the visual angle in eight domains can be achieved on the four-domain display device to thereby achieve both a high transmittance ratio and a large visual angle on the ultra-high-definition display without modifying the display panel.
In one or more embodiments, the operation 101 above includes obtaining the one frame of input image at a first frequency and obtaining the grayscales of the respective pixels in the one frame of input image; and the operation 103 above includes displaying the two adjacent frames of output image at a second frequency which is twice the first frequency.
The existing four-domain liquid crystal TV set obtains a frame of input image at the same frequency as the frequency at which a frame of output image is output, which is typically 60 Hz. In the image display method according to the embodiment of the disclosure, the four-domain liquid crystal TV set obtains one frame of input image at the frequency of 60 Hz, and obtains grayscales of 3800×2160 pixels in the one frame of input image, and outputs two adjacent frames of output image at the frequency of 120 Hz. That is, as compared with the existing four-domain liquid crystal TV set, the image display frequency in the four-domain liquid crystal TV set in the embodiment of the disclosure is twice the frequency, that is, one frame of image is displayed as two adjacent frames of image, and the doubling in display frequency (i.e., from existing 60 Hz to 120 Hz in the embodiment of the disclosure) can shorten a period of time for displaying each frame of image so that the difference between the two frames will be unperceivable by the human eyes to thereby further improve the display visual angle effect on the high-resolution display.
In one or more embodiments, the grayscales of the respective pixels in the two adjacent frames of output image are determined from the grayscales of the respective pixels in the one frame of input image by determining the grayscales of the respective pixels in the two adjacent frames of output image from the grayscales of the respective pixels in the one frame of input image according to a preset relationship between the grayscales of the respective pixels in the input image and the grayscales of the respective pixels in the output image.
The preset relationship between the grayscales of the respective pixels in the input image and the grayscales of the respective pixels in the output image can be as illustrated in
Particularly taking the grayscale 160 of a pixel in the frame of input image as an example, the grayscales of the pixel in the two adjacent frames of output image can be determined respectively as 120 and 200 by referring to the lookup table as illustrated in
Of course, the lookup table will not be limited to the form illustrated in
In one or more embodiments, if the grayscale of a pixel in the frame of input image lies in grayscale intervals of 0 to 25 and 230 to 255, then the differences between the transmittance ratios corresponding to the grayscales of the pixel in the frames of output image and the transmittance ratio corresponding to the grayscale of the pixel in the frame of input image are no more than 10%; and if the grayscale of a pixel in the frame of input image lies in a grayscale interval of 26 and 229, then the differences between the transmittance ratios corresponding to the grayscales of the pixel in the frames of output image and the transmittance ratio corresponding to the grayscale of the pixel in the frame of input image are no more than 40%.
Particularly taking as an example the preset lookup table illustrated in
This is because for a relatively white grayscale lying in the grayscale interval of 0 to 25 and a relatively black grayscale lying in the grayscale interval of 230 to 255, an increase in grayscale has an insignificant influence on the transmittance ratio, whereas for a moderate grayscale lying in the grayscale interval of 26 to 229, an increase in grayscale has a significant influence on the transmittance ratio. In one or more embodiments, in order to avoid an influence upon brightness deviations in black and white fields, when the grayscale is relatively white or black, the differences between the transmittance ratios corresponding to the grayscales of the pixel in the frames of output image and the transmittance ratio corresponding to the grayscale of the pixel in the image of input image are no more than 10%, and when the grayscale is moderate, the differences between the transmittance ratios corresponding to the grayscales of the pixel in the frames of output image and the transmittance ratio corresponding to the grayscale of the pixel in the image of input image are no more than 40%.
The preset lookup table can be derived below in several particular examples.
Taking any grayscale x as an example, the preset lookup table will be derived from the principle curves as illustrated in
When the grayscale in the input image is x, the transmittance ratio, on the curve O, corresponding to the grayscale x is To, and the transmittance ratio, on the curve A, corresponding to the grayscale x is Ta, where To<Ta, and the corresponding grayscale of Ta on the curve O is x1, that is, the grayscale in the output image more than the grayscale x is determined as x1; and alike when the grayscale in the frame of input image is x, the transmittance ratio, on the curve O, corresponding to the grayscale x is To, and the transmittance ratio, on the curve B, corresponding to the grayscale x is Tb, where To>Tb, and the corresponding grayscale of Tb on the curve O is x2, that is, the grayscale in the output image less than the grayscale x is determined as x2. Particularly if x is 160, then corresponding x1 can be 120, and corresponding x2 can be 200.
For each grayscale in the frame of input image, a corresponding grayscale higher than in the frame of input image and a corresponding grayscale lower than in the frame of input image can be determined as above to thereby derive the lookup table as illustrated in
Optionally in the principle curves illustrated in
It shall be noted here that in the principle curves illustrated in
The preset lookup table will be derived from the principle curves as illustrated in
The preset lookup table as illustrated in
For each grayscale in the frame of input image, a corresponding grayscale higher than in the frame of input image and a corresponding grayscale lower than in the frame of input image can be determined as above to thereby derive the lookup table as illustrated in
Optionally in the principle curves illustrated in
Of course, further to the principle curves illustrated in
It shall be noted here that in the principle curves illustrated in
The preset lookup table will be derived from the principle curves as illustrated in
In the preset lookup table derived from the principle curves illustrated in
The preset lookup table as illustrated in
For each grayscale in the frame of input image, a corresponding grayscale higher than in the frame of input image and a corresponding grayscale lower than in the frame of input image can be determined as above to thereby derive the lookup table including the grayscales of the respective pixels in the frame of input image and the grayscales of the respective pixels in the frames of output image.
Optionally in the principle curves illustrated in
Of course, further to the principle curves illustrated in
It shall be noted here that in the principle curves illustrated in
Of course, the preset lookup table including the grayscales of the respective pixels in the frame of input image and the grayscales of the respective pixels in the frames of output image can alternatively be derived from other principle curves, although the particular principle thereof has been described in the embodiment of the disclosure merely taking the principle curves illustrated in
In order to further improve the display effect in the first embodiment of the disclosure, an embodiment of the disclosure further provides a spatial compensation method such that the grayscale of one of any two adjacent pixels in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the frame of input image, and the grayscale of the other pixel is lower than the grayscale of the pixel in the frame of input image.
Particularly as illustrated in
An embodiment below of the disclosure provides an image display device corresponding to the image display method according to the first embodiment of the disclosure, and it shall be noted that respective function units included in the device below can perform corresponding operations in the method above, so the respective function units of the device will not be described in details in the embodiments below of the disclosure.
An embodiment of the disclosure provides an image display device 100 applicable to a multi-domain display device, and as illustrated in
A first obtaining unit 101 is configured to obtain grayscales of respective pixels in one frame of input image.
Particularly, as illustrated in
A first determining unit 102 is configured to determine grayscales of the respective pixels in two adjacent frames of output image from the grayscales of the respective pixels in the one frame of input image, where the grayscale of any pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the input image, and the grayscale of the pixel in the other one of the two adjacent frames of output image is lower than the grayscale of the pixel in the input image.
Particularly, as illustrated in
A first displaying unit 103 is configured to display the two adjacent frames of output image according to the grayscales of the respective pixels in the two adjacent frames of output image. The first displaying unit is particularly configured to display the two adjacent frames of output image at a second frequency which is twice the first frequency.
Particularly the first displaying unit can be the display module as illustrated in
The embodiment of the disclosure provides such an image display device that one frame of input image is displayed respectively as two adjacent frames of output image so that the grayscale of any pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the frame of input image, and the grayscale of the pixel in the other frame of output image is lower than the grayscale of the pixel in the frame of input image, so the grayscale is displayed as superimposition of the grayscales in the two frames of output image due to the temporal integration effect in human eyes. For the four-domain display device, each frame can be seen as four different directed vectors of liquid crystals, so two adjacent frames can be seen by the human eyes as eight different directed vectors of liquid crystals to thereby improve the display angle of view characteristic, that is, a display effect from the angle of view of eight zones can be achieved on the four-domain display device to thereby achieve both a high transmittance ratio and a large angle of view on the ultra-high-definition display without modifying the display panel.
An embodiment of the disclosure provides a multi-domain display device including the image display device according to the first embodiment of the disclosure.
Embodiments of the disclosure provide another image display method and device applicable to a multi-domain display device, which can be a TV set, a network video player, etc., in practice. In the embodiments of the disclosure, the multi-domain display device which is a four-domain liquid crystal TV set with the resolution of 3800×2160 will be described as an example.
As illustrated in
Operation 201: obtain grayscales of respective pixels in the i-th frame of input image and the j-th frame of input image, which are two adjacent frames.
Particularly if the i-th frame and the j-th frame are two adjacent frames, then the j-th frame can be the (i−1)-th frame, or the j-th frame can be the (i+1)-th frame. The embodiment of the disclosure will not be limited to any particular order of the i-th frame and the j-th frame.
Operation 202: determine the grayscales of the respective pixels in the i-th frame of output image from the grayscales of the respective pixels in the i-th frame of input image; and determine the grayscales of the respective pixels in the j-th frame of output image from the grayscales of the respective pixels in the j-th frame of input image, where the grayscale of any pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image (that is, for a pixel, the grayscale of the pixel in one of the i-th frame and j-th frame of output image is higher than the grayscale of the pixel in corresponding frame of input image, and the grayscale of the pixel in the other one of i-th frame and j-th frame of output image is lower than the grayscale of the pixel in corresponding frame of input image).
By way of example, the grayscale of one of the 3800×2160 pixels in the i-th frame of input image is 160, for example, and the grayscale of the pixel in the i-th frame of output image is determined respectively as 200; and the grayscale of the pixel in the j-th frame of input image is 25, and the grayscale of the pixel in the j-th frame of output image is determined respectively as 20. That is, for one and the same pixel, the grayscale of the pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image.
It shall be noted here that the grayscale of a pixel corresponds to the transmittance ratio of the pixel, and in the embodiment of the disclosure, different grayscales correspond to different transmittance ratios. If the grayscale of any pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image, then the average of the grayscales of any pixel in the two adjacent frames of output image can be more or less than or equal to the average of the grayscales of the pixel in the two frames of input image, although the embodiment of the disclosure will not be limited thereto.
Operation 103: display the i-th frame and the j-th frame of input image.
That is, data voltage corresponding to the respective pixels is output by a display module of the four-domain liquid crystal TV set to display the i-th frame and the j-th frame of output image on the display device.
It shall be noted that in the operation 201 and the operation 202 above, the grayscales of the respective pixels in the i-th frame of input image are obtained, and the grayscales of the respective pixels in the j-th frame of input image are obtained; and the grayscales of the respective pixels in the i-th frame of output image are determined from the grayscales of the respective pixels in the i-th frame of input image, and the grayscales of the respective pixels in the j-th frame of output image are determined from the grayscales of the respective pixels in the j-th frame of input image. The embodiment of the disclosure will not be limited to any particular order in which these processing operations are performed. For example, alternatively the grayscales of the respective pixels in the i-th frame of input image can be obtained; the grayscales of the respective pixels in the i-th frame of output image can be determined from the grayscales of the respective pixels in the i-th frame of input image; and the i-th frame of input image can be displayed; and thereafter the grayscales of the respective pixels in the j-th frame of input image can be obtained; the grayscales of the respective pixels in the j-th frame of output image can be determined from the grayscales of the respective pixels in the j-th frame of input image; and the i-th frame of input image can be displayed, as long as the grayscale of any pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image.
The embodiment of the disclosure provides such an image display method that the grayscales of the respective pixels in the i-th frame and the j-th frame of input image are obtained, the grayscales of the respective pixels in the i-th frame of output image are determined from the grayscales of the respective pixels in the i-th frame of input image, and the grayscales of the respective pixels in the j-th frame of output image are determined from the grayscales of the respective pixels in the j-th frame of input image, where the grayscale of any pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image, so the display angle of view characteristic can be improved due to the temporal integration effect in human eyes, that is, a display effect from the angle of view of eight zones can be achieved on the four-domain display device to thereby achieve both a high transmittance ratio and a large angle of view on the ultra-high-definition display without modifying the display panel.
Optionally the operation 201 above includes obtaining the i-th frame and the j-th frame of input image at a third frequency and obtaining the grayscales of the respective pixels in the i-th frame and the j-th frame of input image; and the operation 203 above includes displaying the i-th frame and the j-th frame of output image at the third frequency.
The second embodiment differs from the first embodiment in that in the second embodiment, the i-th frame and the j-th frame of input image are obtained at the same frequency as the frequency at which the i-th frame and the j-th frame of output image are displayed. In the second embodiment, the displayed grayscale can be the superimposition of the grayscales in the two frames of output image due to the integration effect in human eyes to thereby further improve the display resolution.
Optionally in the operation 202 above, the grayscales of the respective pixels in the i-th frame of output image are determined from the grayscales of the respective pixels in the i-th frame of input image by determining the grayscales of the respective pixels in the i-th frame of output image from the grayscales of the respective pixels in the i-th frame of input image according to a preset relationship between the grayscales of the respective pixels in the frame of input image and the grayscales of the respective pixels in the frame of output image; and/or
The grayscales of the respective pixels in the j-th frame of output image are determined from the grayscales of the respective pixels in the j-th frame of input image by determining the grayscales of the respective pixels in the j-th frame of output image from the grayscales of the respective pixels in the j-th frame of input image according to a preset relationship between the grayscales of the respective pixels in the frame of input image and the grayscales of the respective pixels in the frame of output image.
The preset relationship between the grayscales of the respective pixels in the frame of input image and the grayscales of the respective pixels in the frame of output image can be the same as the preset relationship between the grayscales of the respective pixels in the frame of input image and the grayscales of the respective pixels in the frame of output image in the first embodiment. Alternatively the preset relationship can be as illustrated in
Reference can be made to the particular description in the first embodiment for the lookup table illustrated in
Optionally if the grayscale of a pixel in the i-th frame of input image lies in grayscale intervals of 0 to 25 and 230 to 255, then the difference between the transmittance ratio corresponding to the grayscale of the pixel in the i-th frame of output frame and the transmittance ratio corresponding to the grayscale of the pixel in the i-th frame of input image is no more than 10%; and if the grayscale of a pixel in the i-th frame of input image lies in a grayscale interval of 26 and 229, then the difference between the transmittance ratio corresponding to the grayscale of the pixel in the i-th frame of output frame and the transmittance ratio corresponding to the grayscale of the pixel in the i-th frame of input image is no more than 40%; and/or
If the grayscale of a pixel in the j-th frame of input image lies in grayscale intervals of 0 to 25 and 230 to 255, then the difference between the transmittance ratio corresponding to the grayscale of the pixel in the j-th frame of output frame and the transmittance ratio corresponding to the grayscale of the pixel in the j-th frame of input image is no more than 10%; and if the grayscale of a pixel in the j-th frame of input image lies in a grayscale interval of 26 and 299, then the difference between the transmittance ratio corresponding to the grayscale of the pixel in the j-th frame of output frame and the transmittance ratio corresponding to the grayscale of the pixel in the j-th frame of input image is no more than 40%.
This is because for a relatively white grayscale lying in the grayscale interval of 0 to 25 and a relatively black grayscale lying in the grayscale interval of 230 to 255, an increase in grayscale has an insignificant influence on the transmittance ratio, whereas for a moderate grayscale lying in the grayscale interval of 26 to 229, an increase in grayscale has a significant influence on the transmittance ratio, so optionally in order to avoid an influence upon brightness deviations in black and white fields, when the grayscale is relatively white or black, the difference between the transmittance ratio corresponding to the grayscale of the pixel in the frame of output image and the transmittance ratio corresponding to the grayscale of the pixel in the image of input image is no more than 10%, and when the grayscale is moderate, the difference between the transmittance ratio corresponding to the grayscale of the pixel in the frames of output image and the transmittance ratio corresponding to the grayscale of the pixel in the image of input image is no more than 40%.
In order to further improve the display effect in the second embodiment of the disclosure, an embodiment of the disclosure further provides a spatial compensation method such that the grayscale of one of any two adjacent pixels in the i-th frame or the j-th frame of output image is higher than the grayscale of the pixel in the frame of corresponding input image, and the grayscale of the other pixel is lower than the grayscale of the pixel in the frame of corresponding input image.
Taking as an example the j-th frame of output image which is the (i+1)-th frame of output image, as illustrated in
An embodiment below of the disclosure provides an image display device corresponding to the image display method according to the second embodiment of the disclosure, and it shall be noted that respective function units included in the device below can perform corresponding operations in the method above, so the respective function units of the device will not be described in details in the embodiments below of the disclosure.
An embodiment of the disclosure provides an image display device 200 applicable to a multi-domain display device, and as illustrated in
A second obtaining unit 201 is configured to obtain grayscales of respective pixels in the i-th frame and the j-th frame of input image, which are two adjacent frames.
Particularly, as illustrated in
A second determining unit 202 is configured to determine the grayscales of the respective pixels in the i-th frame of output image from the grayscales of the respective pixels in the i-th frame of input image; and to determine the grayscales of the respective pixels in the j-th frame of output image from the grayscales of the respective pixels in the j-th frame of input image, where the grayscale of any pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image.
Particularly, as illustrated in
A second displaying unit 203 is configured to display the i-th frame and the j-th frame of output image. The second displaying unit is particularly configured to display the i-th frame and the j-th frame of output image at a third frequency.
Particularly the second displaying unit can be the display module as illustrated in
The embodiment of the disclosure provides such an image display device that the grayscales of the respective pixels in the i-th frame and the j-th frame of input image are obtained, the grayscales of the respective pixels in the i-th frame of output image are determined from the grayscales of the respective pixels in the i-th frame of input image, and the grayscales of the respective pixels in the j-th frame of output image are determined from the grayscales of the respective pixels in the j-th frame of input image, where the grayscale of any pixel in the i-th frame of output image is higher than the grayscale of the pixel in the i-th frame of input image, and the grayscale of the pixel in the j-th frame of output image is lower than the grayscale of the pixel in the j-th frame of input image, so the display angle of view characteristic can be improved due to the temporal integration effect in human eyes, that is, a display effect from the angle of view of eight zones can be achieved on the four-domain display device to thereby achieve both a high transmittance ratio and a large angle of view on the ultra-high-definition display without modifying the display panel.
An embodiment of the disclosure provides a multi-domain display device including the image display device according to the second embodiment of the disclosure.
Moreover as illustrated in
The memory can be configured to store software programs and modules, and the processor or processors is or are configured to run the software programs and the modules stored in the memory to thereby perform various function applications and data processing. The memory can include a high-speed random access memory and can further include a nonvolatile memory, e.g., at least one magnetic-disk memory device, a flash memory device or another volatile solid memory device. Correspondingly the memory can further include a memory controller configured to provide an access of the processor or the processors and the input device to the memory; and
The processor or processors is or are a control center of the display device, has the respective components of the display device connected by various interfaces and lines, and runs or executes the software programs and/or the modules stored in the memory and invokes the data stored in the memory to perform the various functions of the display device and to process the data to thereby manage and control the display device as a whole. Optionally the processor or processors can include one or more processing cores; and the processor or processors can be integrated with an application processor and a modem processor, where the application processor generally handles the operating system, the user interfaces, the applications, etc., and the modem processor generally handles wireless communication. As can be appreciated, the modem processor above may not be integrated into the processor or processors.
The display device can further include a TV and radio receiver, a high-definition multimedia interface, a USB interface, an audio and video input structure and other input units, and the input unit can further include a remote control receiver to receive a signal transmitted by a remote controller. Moreover the input unit can further include a touch sensitive surface and other input devices, where the touch sensitive surface can be embodied in various types of resistive, capacitive, infrared, surface sound wave and other types, and the other input device can include but will not be limited to one or more of a physical keyboard, functional keys (e.g., volume control press keys, a power-on or-off press key, etc.), a track ball, a mouse, a joystick, etc.
The output unit is configured to output an audio signal, a video signal, an alert signal, a vibration signal, etc. The output unit can include a display panel, a sound output module, etc. The display panel can be configured to display information input by the user or information provided to the user and various graphic user interfaces of the display device, where these graphic user interfaces can be composed of graphics, texts, icons, videos and any combination thereof. For example, the display panel can be embodied as a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), a flexible display, a 3D display, a CRT, a plasmas display panel, etc.
The display device can further include at least one sensor (not illustrated), e.g., an optical sensor, a motion sensor and other sensors. Particularly the optical sensor can include an ambient optical sensor and a proximity sensor, where the ambient optical sensor can adjust the brightness of the display panel according to the luminosity of ambient light rays, and the proximity sensor can power off the display panel and/or a backlight when the display device moves to some position. The display device can be further configured with a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor and other sensors.
The display device can further include an audio circuit (not illustrated), and a speaker and a transducer can provide an audio interface between the user and the display device. The audio circuit can convert received audio data into an electric signal and transmit the electric signal to the speaker, which is converted by the speaker into an audio signal for output; and on the other hand, the transducer converts a collected audio signal into an electric signal which is received by the audio circuit and then converted into audio data, and the audio data is further output to the processor or processors for processing and then transmitted to another display device, for example, or the audio data is output to the memory for further processing. The audio circuit may further include an earphone jack for communication between a peripheral earphone and the display device.
Moreover the display device can further include a Radio Frequency (RF) circuit. The RF circuit can be configured to receive and transmit a signal. Typically the RF circuit includes but will not be limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a Subscriber Identifier Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, etc. Moreover the display device can further include a web cam, a Bluetooth module, etc.
Moreover the display device can further include a Wireless Fidelity (WiFi) module (not illustrated). The WiFi falls into the category of short-range wireless transmittance technologies, and the display device can assist the user in receiving and transmitting an e-mail, browsing a webpage, accessing streaming media, etc., through the WiFi module by which the user is provided with a wireless access to the broadband Internet. Although the WiFi module is illustrated in
An embodiment of the disclosure further provides a computer readable storage medium which can be a computer readable storage medium included in the memory in the embodiment above; or can be a separately existing computer readable storage medium which is not installed into the terminal. The computer readable storage medium stores one or more programs (in some embodiments, the computer readable storage medium can be one or more magnetic-disk storage devices, flash memory devices or other nonvolatile solid storage devices, CD-ROMs, optical memories, etc.), and the one or more programs can be executed by one or more processors to perform the display method according to the embodiment of the disclosure. For operations included in the method, reference can be made to the relevant description of the embodiments illustrated in
The embodiments of the disclosure provide such an image display method and device and a multi-domain display device that the grayscale of any pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the frame of input image, and the grayscale of the pixel in the other frame of output image is lower than the grayscale of the pixel in the frame of input image, so the grayscale is displayed as superimposition of the grayscales in the two frames of output image due to the temporal integration effect in human eyes, and eight different directed vectors of liquid crystals, i.e., a display effect from the angle of view of eight zones, can be seen on the four-domain display device to thereby achieve both a high transmittance ratio and a large angle of view on the ultra-high-definition display without modifying the display panel.
The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Number | Date | Country | Kind |
---|---|---|---|
2015 1 0036782 | Jan 2015 | CN | national |
Number | Name | Date | Kind |
---|---|---|---|
7800634 | Baek et al. | Sep 2010 | B2 |
20060007091 | Yang | Jan 2006 | A1 |
20080030435 | Kim | Feb 2008 | A1 |
20080068359 | Yoshida | Mar 2008 | A1 |
20100033473 | Hsieh | Feb 2010 | A1 |
Number | Date | Country |
---|---|---|
103474042 | Dec 2013 | CN |
103955279 | Jul 2014 | CN |
Entry |
---|
Office Action from corresponding Chinese Application No. 201510036782.9 dated Oct. 17, 2017 (14 pages). |
Number | Date | Country | |
---|---|---|---|
20160217593 A1 | Jul 2016 | US |