This application claims the priority of Chinese Patent Application No. 201610369992.4, entitled “Driving Method of Display Panel”, filed on May 30, 2016, the disclosure of which is incorporated herein by reference in its entirety.
The invention relates to the field of display technology, and particularly to a driving method of a display panel.
Nowadays, in a UD tri-gate (Ultra High-Definition tri-gate) display panel, RGB three sub-pixels are vertically arranged, and a driving manner of a level switching for sub-pixels usually is a column inversion driving manner. The column inversion driving manner is shown in
Accordingly, an objective of the invention is to provide a driving method capable of reducing power consumption of a display panel.
In order to achieve the above objective, embodiments of the invention provide technical solutions as follows.
The invention provides a driving method of a display panel. The driving method includes: providing a display panel, wherein the display panel includes multiple (i.e., more than one) data lines and pixel unit groups arranged in an array, each pixel unit group is divided into a first sub-pixel unit group and a second sub-pixel unit group alternately arranged along column direction, the first sub-pixel unit group and the second sub-pixel unit group each includes multiple sub-pixels; in a same frame of image, the data lines scanning the first sub-pixel unit groups of the pixel unit groups; and driving signals on the data lines being performed with one time level switching and then the data lines scanning the second sub-pixel unit groups of the pixel unit groups.
In an embodiment, the sub-pixels of each of the first sub-pixel unit group and the second sub-pixel unit group include sub-pixels with different colors, and each of the data lines scans the sub-pixels of each of the first sub-pixel unit group and the second sub-pixel unit group in a same color order.
In an embodiment, the sub-pixels of each of the first sub-pixel unit group and the second sub-pixel unit group specifically include a red sub-pixel, a green sub-pixel and a blue sub-pixel, and an order of each of the data lines scanning the sub-pixels of each of the first sub-pixel unit group and the second sub-pixel unit group is the blue sub-pixel, the red sub-pixel and the green sub-pixel in that sequence.
In an embodiment, the sub-pixels of each of the first sub-pixel unit group and the second sub-pixel unit group specifically include a red sub-pixel, a green sub-pixel and a blue sub-pixel, and an order of each of the data lines scanning the sub-pixels of each of the first sub-pixel unit group and the second sub-pixel unit group is the blue sub-pixel, the green sub-pixel and the red sub-pixel in that sequence.
In an embodiment, a level of the driving signal for scanning the first sub-pixel unit group is a high level, and a level of the driving signal for scanning the second sub-pixel unit group is a low level.
In an embodiment, each the data line sequentially scans multiple pixel unit groups in a corresponding column.
In an embodiment, after the data line scans one pixel unit group, the driving signal on the data line is performed with one time level switching and then the data line scans the next pixel unit group.
In an embodiment, after the data line scans the second sub-pixel unit group of the one pixel unit group, the driving signal on the data line is performed with one time level switching and then the data line scans the first sub-pixel unit group of the next pixel unit group.
The embodiments of the invention can achieve the following advantages or efficacy that a level property distribution of sub-pixels obtained by the driving method of a display panel as provided by the invention is same or similar to a level property distribution of sub-pixels obtained by the driving manner employed in the prior art, so that display effect obtained by the driving method of a display panel as provided by the invention is same or similar to display effect obtained by the driving manner in the prior art. Meanwhile, for the driving method of the invention, in a same frame of image, during one data line scans one pixel unit group, a level of a data line driving signal only is changed with one time. In the embodiments of the invention, the level switching times of the data line driving signal corresponding to each data line is significantly decreased, so that the power consumption for driving the display panel can be reduced. In addition, since there is no need of frequent switching of driving signal, charging and discharge effect of the pixel electrodes can be ensured and therefore display performance of the display panel is enhanced.
In order to more clearly illustrate technical solutions of embodiments of the invention or the prior art, drawings will be used in the description of embodiments or the prior art will be given a brief description below. Apparently, the drawings in the following description only are some of embodiments of the invention, the ordinary skill in the art can obtain other drawings according to these illustrated drawings without creative effort.
In the following, with reference to accompanying drawings of embodiments of the invention, technical solutions in the embodiments of the invention will be clearly and completely described. Apparently, the embodiments of the invention described below only are a part of embodiments of the invention, but not all embodiments. Based on the described embodiments of the invention, all other embodiments obtained by ordinary skill in the art without creative effort belong to the scope of protection of the invention.
An embodiment of the invention provides a driving method of a display panel. The driving method is adapted for driving a display panel as shown in
For the display panel 100 with the above-mentioned structure, please refer to
In a driving process of the display panel 100, level properties of initial data line driving signals corresponding to adjacent rows of sub-pixels 31 are opposite, so that the level properties of adjacent two sub-pixels 31 of each column are opposite. In a same frame of image, each data lines 10 sequentially scans all the sub-pixels of the first sub-pixel unit groups 311 of corresponding pixel unit groups 310 and then a driving signal on the data line 10 is performed with one time level switching, and afterwards the data line 10 scans all the second sub-pixel unit groups 312 of the corresponding pixel unit groups 310, so that in each pixel unit group 310, the level of the sub-pixels 31 in the first sub-pixel unit group 311 and the level of the sub-pixels 31 in the second sub-pixel unit group 312 have opposite properties. The level property distribution of the sub-pixels 31 obtained by the driving method of the display panel 100 provided by the illustrated embodiment of the invention is same or similar to the level property distribution of the sub-pixels 31 obtained by the driving method employed in the prior art, so that display effect obtained by the driving method of the display panel 100 provided by the invention is same or similar to display effect obtained by the driving method in the prior art. Meanwhile, for the driving method of the invention, in a same frame of image, during one data line 100 scans one pixel unit group 310, the level property of the driving signal on the data line only is changed one time. Compared with the prior art that a data line driving signal on each data line 10 for scanning one pixel unit group 310 requires the level property thereof to be switched three times, in the illustrated embodiment of the invention, the level switching times of the data line driving signal corresponding to each data line 10 is significantly decreased, and thereby reducing the power consumption for driving the display panel. In addition, since there is no need of frequent switching of driving signal, charging and discharging effect for pixel electrodes can be ensured, and therefore display performance of the display panel 100 is enhanced consequently.
In a preferred embodiment, each pixel unit 30 includes a red sub-pixel (R), a green sub-pixel (G) and a blue sub-pixel (B). The red sub-pixel, the green sub-pixel and the blue sub-pixel in each pixel unit 30 are sequentially arranged along column direction. It should be understood that, the sub-pixels in each of the first sub-pixel unit group 311 and the second sub-pixel unit group 312 include the red sub-pixel, the green sub-pixel and the blue sub-pixel. The sub-pixels 31 with different colors in the first sub-pixel unit group 311 and the second sub-pixel unit group 312 are alternately and cyclically arranged.
More specifically, referring to
It is noted that, in a same frame of image, each data line 10 sequentially scans multiple pixel unit groups 310 in a corresponding column. In particular, after the data line 10 completes the scanning of the second sub-pixel unit group 312 in a preceding pixel unit group 310, the driving signal on the data line 10 is performed with one time level switching, and then the data line scans the first sub-pixel unit group 311 in a succeeding pixel unit group 310 and afterwards the driving signal on the data line 10 is performed with one time level switching again, and then the data line scans the second sub-pixel unit group 312 in the succeeding pixel unit group 310. After that, the driving signal on the data line 10 is performed with one time level switching still again, and subsequently repeats the above steps until the data line 10 completes the scanning of all pixel unit groups 310 in one column. It should be understood that, the number/amount of the sub-pixels in some of the first sub-pixel unit groups 311 and the number of the sub-pixels in the second sub-pixel unit groups 312 can be set according to actual situation, as long as the switching times of the data line driving signal corresponding to each data line 10 associated with the invention is less than the switching times of the data line driving signal corresponding to each data line 10 in the prior art.
It should be understood that, in a same row of sub-pixels, levels of adjacent two sub-pixels both may be a high level or a low level, or one is the high level and the other is the low level. Because it is not the focus of protection of the invention and thus there no detailed explanation is made herein.
In the description of the specification, reference to the term “one embodiment”, “some embodiments”, “an example”, “a specific example” or “some examples” etc., means that a particular characteristic, structure, material or feature described in the embodiment or example can be combined into at least one embodiment or example of the invention. In the specification, the exemplary expression of the above term does not necessarily mean the same example or example. Furthermore, the described particular characteristics, structures, materials or features may be combined in a suitable manner in any one or more embodiments or examples.
While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.
Number | Date | Country | Kind |
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201610369992.4 | May 2016 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2016/087256 | 6/27/2016 | WO | 00 |