Display panel and driving method
By obtaining the polarity and grayscale data of adjacent sub-pixels in the viewing angle compensation algorithm and using the grayscale compensation value to drive the display panel, the problem of head-shaking patterns caused by brightness differences after the viewing angle compensation algorithm is solved, and brightness uniformity is improved.
Patent Information
- Application Number
- CN202311308342.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-10
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2043-10-10
AI Technical Summary
After applying the viewing angle compensation algorithm, there is a brightness difference between adjacent sub-pixels in a large-size LCD panel, resulting in a head-shaking pattern.
By acquiring the polarity and grayscale data of adjacent sub-pixels in the viewpoint compensation algorithm, a sub-pixel is driven to be displayed using the grayscale compensation value, so as to minimize the brightness difference.
Based on the viewpoint compensation algorithm, the grayscale data of adjacent sub-pixels are further differentiated to eliminate the head-shaking pattern.
Smart Images

Figure CN117456947B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display panel and a driving method. BACKGROUND
[0002] With the gradual diversification of people's life and work scenes, the application scenarios of large-size liquid crystal display panels are increasingly widespread. For large-size liquid crystal display panels, one of the problems that need to be considered is to solve the viewing angle defect. Therefore, the viewing angle compensation algorithm for large-size liquid crystal display panels has emerged as the times require.
[0003] The principle of the viewing angle compensation (VAC) algorithm is to replace the original gray scale with a relatively high gray scale (H) and a relatively low gray scale (L) to alternately drive in adjacent frames, which can correct the relationship between the side-view luminance and the gray scale under the condition that the relationship between the front-view luminance and the gray scale remains unchanged.
[0004] However, even after applying the above viewing angle compensation algorithm, there is still a luminance difference between two adjacent sub-pixels with opposite polarity and the same gray scale, and the luminance difference presents a regular distribution. When the human eye shakes at a certain frequency, the wobble pattern will be observed. SUMMARY
[0005] The present application provides a display panel and a driving method to alleviate the technical problem that the wobble pattern will be observed after applying the viewing angle compensation algorithm.
[0006] In a first aspect, the present application provides a driving method of a display panel, the display panel comprising a plurality of sub-pixels, each sub-pixel having opposite polarity and different to-be-displayed gray scale data in adjacent frames, the driving method comprising: obtaining polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, each group of sub-pixels comprising two adjacent sub-pixels with the same to-be-displayed gray scale data and opposite polarity in the same row; and driving one of the two adjacent sub-pixels to display according to a gray scale compensation value and the to-be-displayed gray scale data, so as to minimize the luminance difference between the two adjacent sub-pixels.
[0007] In some embodiments, the to-be-displayed gray scale data comprises to-be-displayed high gray scale data and to-be-displayed low gray scale data, and the step of obtaining polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, each group of sub-pixels comprising two adjacent sub-pixels with the same to-be-displayed gray scale data and opposite polarity in the same row comprises: setting each column of sub-pixels in the plurality of sub-pixels to have the same polarity, and the polarities of adjacent column sub-pixels being opposite; and setting the sub-pixels of each adjacent two columns in the same row to alternately have the to-be-displayed high gray scale data and the to-be-displayed low gray scale data.
[0008] In some embodiments, the to-be-displayed gray scale data includes to-be-displayed high gray scale data and to-be-displayed low gray scale data, the step of obtaining polarities of at least one group of sub-pixels in the current frame and the to-be-displayed gray scale data, each group of sub-pixels including two adjacent sub-pixels in the same row with the same to-be-displayed gray scale data and opposite polarities, includes: setting each two columns of adjacent sub-pixels in the plurality of sub-pixels to have the same polarity, and each two columns of adjacent sub-pixels to have opposite polarities alternately; and setting adjacent columns of sub-pixels in the same row to have the to-be-displayed high gray scale data and the to-be-displayed low gray scale data alternately.
[0009] In some embodiments, the gray scale compensation value is obtained in advance according to a mapping relationship between a luminance difference of the two adjacent sub-pixels and a gray scale.
[0010] In some embodiments, the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data to minimize the luminance difference between the two adjacent sub-pixels includes: configuring the gray scale compensation value to be greater than zero; determining one of the two adjacent sub-pixels with lower luminance; and driving the one of the two adjacent sub-pixels with lower luminance to display according to a sum of the to-be-displayed gray scale data and the gray scale compensation value.
[0011] In some embodiments, the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data to minimize the luminance difference between the two adjacent sub-pixels includes: configuring the gray scale compensation value to be greater than zero; determining one of the two adjacent sub-pixels with higher luminance; and driving the one of the two adjacent sub-pixels with higher luminance according to a difference between the to-be-displayed gray scale data and the gray scale compensation value.
[0012] In some embodiments, the polarity includes a positive polarity and a negative polarity, the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data to minimize the luminance difference between the two adjacent sub-pixels includes: configuring the gray scale compensation value to be greater than zero; driving a sub-pixel with the positive polarity of the two adjacent sub-pixels to display according to a sum of the to-be-displayed gray scale data and the gray scale compensation value; and driving a sub-pixel with the negative polarity of the two adjacent sub-pixels to display according to the to-be-displayed gray scale data.
[0013] In some embodiments, the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data to minimize the luminance difference between the two adjacent sub-pixels further includes: driving the other of the two adjacent sub-pixels to display according to the to-be-displayed gray scale data.
[0014] In some embodiments, the step of obtaining the polarity and grayscale data to be displayed of at least one group of sub-pixels in the current frame, wherein each group of sub-pixels includes two adjacent sub-pixels in the same row that have the same grayscale data to be displayed and opposite polarities, further includes: configuring each group of sub-pixels in two adjacent rows to be located in corresponding different columns; and constructing each group of sub-pixels in odd or even rows to be located in corresponding same column.
[0015] Secondly, this application provides a display panel that performs the driving method in at least one of the above embodiments.
[0016] The display panel and driving method provided in this application obtain the polarity and grayscale data to be displayed of at least one group of sub-pixels in the current frame in the viewing angle compensation algorithm, and then drive one of two adjacent sub-pixels with the same grayscale data and opposite polarity to be displayed according to the grayscale compensation value and the grayscale data to be displayed. It can further differentiate the final grayscale data of two adjacent sub-pixels in the same group based on the viewing angle compensation algorithm, and can minimize the brightness difference between two adjacent sub-pixels in the same group, thereby improving or eliminating the phenomenon of head-shaking wrinkles. Attached Figure Description
[0017] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the first structure of a pixel array after applying a viewpoint compensation algorithm in related technologies.
[0019] Figure 2 for Figure 1 The diagram shows the grayscale distribution of the pixel array without the application of the viewpoint compensation algorithm.
[0020] Figure 3 This is a schematic diagram illustrating the charging effect of positive and negative polarity sub-pixels under the influence of feedthrough voltage.
[0021] Figure 4 In order to be in Figure 2 The diagram shows the grayscale distribution after applying the perspective compensation algorithm.
[0022] Figure 5 This is a schematic diagram of the second structure of a pixel array after applying a viewpoint compensation algorithm in related technologies.
[0023] Figure 6 for Figure 5 The diagram shows the grayscale distribution of the pixel array without the application of the viewpoint compensation algorithm.
[0024] Figure 7 In order to be in Figure 6 The diagram shows the grayscale distribution after applying the perspective compensation algorithm.
[0025] Figure 8 This is a flowchart illustrating the driving method provided in an embodiment of this application.
[0026] Figure 9 In order to be in Figure 4 The grayscale distribution diagram is based on the driving method provided in the embodiments of this application.
[0027] Figure 10 In order to be in Figure 7 The grayscale distribution diagram is based on the driving method provided in the embodiments of this application. Detailed Implementation
[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features thus defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more unless otherwise explicitly specified.
[0030] Figure 1 This is a schematic diagram of the first structure of a pixel array after applying a viewpoint compensation algorithm in related technologies. Each column of sub-pixels in this pixel array is connected to a corresponding data line. The pixel array includes one or more pixel repetition units 100, each of which can include 6 rows and 4 columns of sub-pixels. Each row of sub-pixels can display the same color; for example, the first, second, and third rows of sub-pixels from top to bottom display red (R), green (G), and blue (B) respectively, and the display colors of subsequent rows of sub-pixels are arranged in this order. The polarities of sub-pixels in adjacent columns are opposite; for example, the first, second, third, and fourth columns of sub-pixels from left to right are positive (+), negative (-), positive (+), and negative (-) respectively, and the polarities of subsequent columns of sub-pixels are arranged in this order. Then, in the next frame, the polarities of these columns of sub-pixels are flipped.
[0031] wherein, for each sub-pixel, if the current frame receives a relatively high gray scale (H), then the next frame receives a relatively low gray scale (L); or, if the current frame receives a relatively low gray scale (L), then the next frame receives a relatively high gray scale (H). The relatively high gray scale (H) and the relatively low gray scale (L) are relative to the original gray scale without applying the viewing angle compensation algorithm.
[0032] However, even after applying the above viewing angle compensation algorithm, there still exists a luminance difference between two adjacent sub-pixels with opposite polarity and same gray scale in the same row, and the difference presents a regular distribution, which can be observed as a wobble when the human eye shakes at a certain frequency. As shown in Figure 3 As shown, the existence of the feed through voltage (Feed Through, Vft) makes the actual charging potential of the pixel electrode lower than the potential of the input data signal. When the input data voltage is a positive polarity voltage Vdata+, the voltage difference between the actual charging potential Vpexel+ of the pixel electrode and the common voltage becomes smaller due to the pull-down effect of the feed through voltage. When the input data voltage is a negative polarity voltage Vdata-, the voltage difference between the actual charging potential Vpexel- of the pixel electrode and the common voltage becomes larger due to the pull-down effect of the feed through voltage. Therefore, for two adjacent sub-pixels with same gray scale in the same row, the luminance of the positive polarity sub-pixel is greater than that of the negative polarity sub-pixel.
[0033] For example, although the first column of sub-pixels and the second column of sub-pixels in the same row receive the same relatively high gray scale (H) or the same relatively low gray scale (L), the feed through voltage they receive is different due to the opposite polarity, which causes different pull-down degrees of the potential of the pixel electrode of the first column of sub-pixels and the potential of the pixel electrode of the second column of sub-pixels, for example, causing the potential of the pixel electrode of the first column of sub-pixels to drop more. Since the luminance of a sub-pixel is determined by the difference between the potential of the pixel electrode and the potential of the common electrode, the luminance of some sub-pixels in the first column of sub-pixels in the same row will be lower than that of the corresponding sub-pixels in the second column of sub-pixels.
[0034] Similarly, although the third column of sub-pixels and the fourth column of sub-pixels in the same row receive the same relatively high gray scale (H) or the same relatively low gray scale (L), the feed through voltage they receive is different due to the opposite polarity, which causes different pull-down degrees of the potential of the pixel electrode of the third column of sub-pixels and the potential of the pixel electrode of the fourth column of sub-pixels, for example, causing the potential of the pixel electrode of the third column of sub-pixels to drop more. Since the luminance of a sub-pixel is determined by the difference between the potential of the pixel electrode and the potential of the common electrode, the luminance of some sub-pixels in the third column of sub-pixels in the same row will be lower than that of the corresponding sub-pixels in the fourth column of sub-pixels.
[0035] In order to more clearly determine whether the pixel array applies the viewing angle compensation algorithm,Figure 2 This diagram illustrates the grayscale distribution without the application of the viewpoint compensation algorithm. Figure 4 In order to be in Figure 2 Based on this, a schematic diagram of the grayscale distribution after applying the perspective compensation algorithm is shown. Figure 1 compared to, Figure 2 , Figure 4 Each sub-pixel was assigned a specific gray level.
[0036] Among them, Figure 2 In this example, each sub-pixel has the same gray level in the same frame, such as 96, but it is not limited to this. The specific gray level 96 is just an example and could be any other specific gray level value.
[0037] Compared to Figure 1 , Figure 2 As shown, Figure 4 Set the relative high gray level (H) and relative low gray level (L) corresponding to the original gray level of 96 to 128 and 64, respectively.
[0038] Figure 5 This is a schematic diagram of a second structure of a pixel array after applying a viewpoint compensation algorithm in related technologies. Each column of sub-pixels in this pixel array is connected to a corresponding data line. The pixel array includes one or more pixel repetition units 100, each of which can include 6 rows and 4 columns of sub-pixels. Each row of sub-pixels can display the same color; for example, the first, second, and third rows of sub-pixels from top to bottom display red (R), green (G), and blue (B) respectively, and the display colors of subsequent rows of sub-pixels are arranged in this order. The polarities of sub-pixels in adjacent columns are opposite; for example, the first, second, third, and fourth columns of sub-pixels from left to right are positive (+), positive (+), negative (-), and negative (-) respectively, and the polarities of subsequent columns of sub-pixels are arranged in this order. Then, in the next frame, the polarities of these columns of sub-pixels are flipped.
[0039] Specifically, for each sub-pixel, if the current frame receives a relatively high grayscale (H), then the next frame receives a relatively low grayscale (L); or, if the current frame receives a relatively low grayscale (L), then the next frame receives a relatively high grayscale (H). Both the relatively high grayscale (H) and the relatively low grayscale (L) are relative to the original grayscale without the application of the viewpoint compensation algorithm.
[0040] However, even after applying the above-mentioned view compensation algorithm, there is still a brightness difference between two adjacent sub-pixels with opposite polarities and the same gray level in the same row, and they are distributed in a regular manner. When the human eye moves at a certain frequency, head shaking lines can be observed.
[0041] For example, although the first and third column sub-pixels in the same row receive the same relatively high gray level (H) or relatively low gray level (L), they experience different feed through voltages due to their opposite polarities. This feed through voltage pulls down the potential of the pixel electrode of the first column sub-pixel and the pixel electrode of the third column sub-pixel to different degrees. For example, it causes the potential of the pixel electrode of the first column sub-pixel to drop more. Since the brightness of a sub-pixel is determined by the difference between the potential of the pixel electrode and the potential of the common electrode, the brightness of some sub-pixels in the first column of the same row will be lower than the brightness of the corresponding sub-pixels in the third column.
[0042] Similarly, although the second and fourth column sub-pixels in the same row receive the same relatively high grayscale (H) or relatively low grayscale (L), they experience different feedthrough voltages due to their opposite polarities. This feedthrough voltage pulls down the potential of the pixel electrode of the second column sub-pixel and the pixel electrode of the fourth column sub-pixel to different degrees. For example, it causes the potential of the pixel electrode of the second column sub-pixel to drop more. Since the brightness of a sub-pixel is determined by the difference between the potential of the pixel electrode and the potential of the common electrode, the brightness of some sub-pixels in the second column of the same row will be lower than the brightness of the corresponding sub-pixels in the fourth column.
[0043] Similarly, to more clearly determine whether a view compensation algorithm is applied to the pixel array, Figure 6 This diagram illustrates the grayscale distribution without the application of the viewpoint compensation algorithm. Figure 7 In order to be in Figure 6 Based on this, a schematic diagram of the grayscale distribution after applying the perspective compensation algorithm is shown. Figure 5 compared to, Figure 6 , Figure 7 Each sub-pixel was assigned a specific gray level.
[0044] Among them, Figure 6 In this example, each sub-pixel has the same gray level in the same frame, such as 96, but it is not limited to this. The specific gray level 96 is just an example and could be any other specific gray level value.
[0045] Compared to Figure 5 , Figure 6 As shown, Figure 7 Set the relative high gray level (H) and relative low gray level (L) corresponding to the original gray level of 96 to 128 and 64, respectively.
[0046] In view of the technical problem of observing head-shaking patterns after applying the aforementioned viewing angle compensation algorithm, this embodiment provides a driving method for a display panel. Please refer to [link / reference]. Figures 1 to 10 ,like Figure 8 ,Figure 9 and Figure 10 As shown in FIG. 1B, the display panel includes a plurality of sub-pixels, each of which has opposite polarity and different to-be-displayed gray scale data in adjacent frames, which indicates that the display panel has applied a viewing angle compensation algorithm.
[0047] As shown in FIG. 2, the driving method includes the following steps: Figure 8
[0048] Step S10: Obtain the polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, each group of sub-pixels including two adjacent sub-pixels in the same row having the same to-be-displayed gray scale data and opposite polarity;
[0049] Step S20: Drive one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data, so as to minimize the luminance difference between the two adjacent sub-pixels.
[0050] It can be understood that the display panel and the driving method provided by the embodiment can further differentiate the final gray scale data of the two adjacent sub-pixels in the same group on the basis of the viewing angle compensation algorithm by obtaining the polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, and then driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data, which can minimize the luminance difference between the two adjacent sub-pixels in the same group, and further improve or eliminate the phenomenon of wobble lines.
[0051] It should be noted that the two adjacent sub-pixels in each group of sub-pixels may, for example, be the first column sub-pixel and the second column sub-pixel in each row as shown in FIG. 1A, or the third column sub-pixel and the fourth column sub-pixel in each row as shown in FIG. 1B; or may, for example, be the first column sub-pixel and the third column sub-pixel in each row as shown in FIG. 1C, or the second column sub-pixel and the fourth column sub-pixel in each row as shown in FIG. 1D. Figure 4 Figure 4 Figure 7 Figure 7
[0052] It should be noted that there is one sub-pixel between the two adjacent sub-pixels in the same row having the same to-be-displayed gray scale data and opposite polarity, but this one sub-pixel cannot meet the condition of "having the same to-be-displayed gray scale data and opposite polarity in the same row" because the to-be-displayed gray scale data of the one sub-pixel is different from that of the two adjacent sub-pixels, so the two sub-pixels in each group of sub-pixels can be considered as adjacent.
[0053] In some embodiments, as shown in FIG. 2, the driving method includes the following steps: Figure 4 Figure 9 The display panel shown includes at least one pixel repeating unit 100, in each pixel repeating unit 100, each row of sub-pixels in the plurality of sub-pixels displays the same color, each column of sub-pixels in the plurality of sub-pixels has the same polarity, and the polarity of adjacent column sub-pixels is opposite, and the sub-pixels of each adjacent two columns in the same row alternately have high gray scale data to be displayed and low gray scale data to be displayed.
[0054] It should be noted that the high gray scale data to be displayed can be 128 as an example in Figure 4 , Figure 9 The low gray scale data to be displayed can be 64 as an example in Figure 4 , Figure 9 In some other embodiments, each row of sub-pixels can also display different colors, and is not limited to the examples provided in the present application.
[0055] In some embodiments, the display panel shown in Figure 7 , Figure 10 The display panel shown includes at least one pixel repeating unit 100, in each pixel repeating unit 100, each row of sub-pixels in the plurality of sub-pixels displays the same color, each two adjacent columns of sub-pixels in the plurality of sub-pixels have the same polarity, and each two adjacent columns of sub-pixels alternately have opposite polarity, and the adjacent column sub-pixels in the same row alternately have high gray scale data to be displayed and low gray scale data to be displayed.
[0056] It should be noted that the high gray scale data to be displayed can be 128 as an example in Figure 7 , Figure 10 The low gray scale data to be displayed can be 64 as an example in Figure 7 , Figure 10
[0057] In some embodiments, the gray scale compensation value is obtained in advance according to the mapping relationship between the luminance difference of two adjacent sub-pixels and the gray scale.
[0058] It should be noted that for each type or batch of display panel, the luminance of two adjacent sub-pixels can be obtained at one or more gray scales, and then the above luminance difference can be calculated. The mapping relationship between gray scale and luminance can be known, and in general, one gray scale corresponds to one luminance, so the corresponding gray scale compensation value can be obtained in advance through the luminance difference.
[0059] In some embodiments, the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the gray scale data to be displayed to minimize the luminance difference between the two adjacent sub-pixels includes: configuring the gray scale compensation value to be greater than zero; determining the one of the two adjacent sub-pixels with lower luminance; and driving the one of the two adjacent sub-pixels with lower luminance to display according to the sum of the gray scale compensation value and the gray scale data to be displayed.
[0060] It should be noted that, for example, in Figure 9 the two adjacent sub-pixels can be the first column sub-pixel and the third column sub-pixel in the first row, and the one with lower brightness can be the first column sub-pixel in the first row. At this time, the corresponding gray scale compensation value can be obtained through the above steps as 4. The final gray scale data of the first column sub-pixel in the first row is the sum of the gray scale compensation value (4) and the to-be-displayed gray scale data (128), that is, 132. In this way, the brightness difference of the two adjacent sub-pixels is 0. By analogy, the brightness difference of the two adjacent sub-pixels in each group of sub-pixels can be 0, effectively avoiding the appearance of the wobble pattern.
[0061] For example, in Figure 10 the two adjacent sub-pixels can be the first column sub-pixel and the third column sub-pixel in the first row, and the one with lower brightness can be the first column sub-pixel in the first row. At this time, the corresponding gray scale compensation value can be obtained through the above steps as 4. The final gray scale data of the first column sub-pixel in the first row is the sum of the gray scale compensation value (4) and the to-be-displayed gray scale data (128), that is, 132. In this way, the brightness difference of the two adjacent sub-pixels is 0. By analogy, the brightness difference of the two adjacent sub-pixels in each group of sub-pixels can be 0, effectively avoiding the appearance of the wobble pattern.
[0062] In some embodiments, the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data to minimize the brightness difference between the two adjacent sub-pixels includes: configuring the gray scale compensation value to be greater than zero; determining the one with higher brightness in the two adjacent sub-pixels; and driving the one with higher brightness in the two adjacent sub-pixels according to the difference between the to-be-displayed gray scale data and the gray scale compensation value.
[0063] It should be noted that, for example, in Figure 4 the two adjacent sub-pixels can be the first column sub-pixel and the third column sub-pixel in the first row, and the one with lower brightness can be the first column sub-pixel in the first row. At this time, the corresponding gray scale compensation value can be obtained through the above steps as 4. The final gray scale data of the first column sub-pixel in the first row is the sum of the gray scale compensation value (4) and the to-be-displayed gray scale data (128), that is, 132. In this way, the brightness difference of the two adjacent sub-pixels is 0. By analogy, the brightness difference of the two adjacent sub-pixels in each group of sub-pixels can be 0, effectively avoiding the appearance of the wobble pattern.
[0064] For example, in Figure 7For example, two adjacent sub-pixels can be the first column sub-pixel and the third column sub-pixel in the first row. The one with higher brightness can be the third column sub-pixel in the first row. At this time, the corresponding gray level compensation value can be obtained through the above steps. Then the final gray level data of the third column sub-pixel in the first row is the difference between the gray level data to be displayed (128) and the gray level compensation value (4), which is 124. In this way, the brightness difference between the two adjacent sub-pixels can also be 0. By analogy, the brightness difference between the two adjacent sub-pixels in each group of sub-pixels can be 0, which effectively avoids the appearance of head-shaking wrinkles.
[0065] In some embodiments, the polarity includes positive and negative polarity. The step of driving one of two adjacent sub-pixels to be displayed based on the grayscale compensation value and the grayscale data to be displayed, in order to minimize the brightness difference between the two adjacent sub-pixels, includes: configuring the grayscale compensation value to be greater than zero; driving the positive polarity sub-pixel of the two adjacent sub-pixels to be displayed based on the sum of the grayscale compensation value and the grayscale data to be displayed; and driving the negative polarity sub-pixel of the two adjacent sub-pixels to be displayed based on the grayscale data to be displayed.
[0066] It should be noted that, with Figure 9 For example, two adjacent sub-pixels can be the first column sub-pixel and the second column sub-pixel in the first row. The polarity of the first column sub-pixel in the first row is positive. Then, through the above steps, the corresponding gray level compensation value can be obtained as 13. The sum of the gray level data to be displayed (128) and the gray level compensation value (13), i.e., 115, drives the first column sub-pixel in the first row, and the gray level data to be displayed (128) drives the second column sub-pixel in the first row. In this way, the brightness difference between the two adjacent sub-pixels can also be 0. By analogy, the brightness difference between the two adjacent sub-pixels in each group of sub-pixels can be 0, effectively avoiding the appearance of head-shaking wrinkles.
[0067] by Figure 10 For example, two adjacent sub-pixels can be the first column sub-pixel and the third column sub-pixel in the first row. The polarity of the first column sub-pixel in the first row is positive. Then, through the above steps, we can obtain the corresponding gray level compensation value of 4. The sum of the gray level data to be displayed (128) and the gray level compensation value (4), i.e., 132, drives the first column sub-pixel in the first row, and drives the third column sub-pixel in the first row with the gray level data to be displayed (128). In this way, the brightness difference between the two adjacent sub-pixels can also be 0. By analogy, the brightness difference between the two adjacent sub-pixels in each group of sub-pixels can be 0, effectively avoiding the appearance of head-shaking wrinkles.
[0068] In some of these implementations, such as Figure 9 , Figure 10As shown, the step of obtaining the polarity of at least one group of sub-pixels in the current frame and the gray scale data to be displayed, each group of sub-pixels including two adjacent sub-pixels in the same row with the same gray scale data to be displayed and opposite polarity, further comprises: configuring each group of sub-pixels in different adjacent rows to be located in different corresponding columns; configuring each group of sub-pixels in different odd rows or even rows to be located in the same corresponding column.
[0069] It should be noted that, as shown in Figure 9 each group of sub-pixels can be the first column and the second column of sub-pixels in the first row, the fifth column and the sixth column of sub-pixels in the first row, the third column and the fourth column of sub-pixels in the second row, the first column and the second column of sub-pixels in the third row, the fifth column and the sixth column of sub-pixels in the third row, the third column and the fourth column of sub-pixels in the fourth row, the first column and the second column of sub-pixels in the fifth row, the fifth column and the sixth column of sub-pixels in the fifth row, the third column and the fourth column of sub-pixels in the sixth row.
[0070] Each group of sub-pixels in different adjacent rows is located in different corresponding columns, for example, the first column and the second column of sub-pixels in the first row, the fifth column and the sixth column of sub-pixels in the first row, the third column and the fourth column of sub-pixels in the second row. Each group of sub-pixels in different odd rows or even rows is located in the same corresponding column, for example, the first column and the second column of sub-pixels in the first row, the fifth column and the sixth column of sub-pixels in the first row, the first column and the second column of sub-pixels in the third row, the fifth column and the sixth column of sub-pixels in the third row; or, the third column and the fourth column of sub-pixels in the second row, the third column and the fourth column of sub-pixels in the fourth row.
[0071] As shown in Figure 10 each group of sub-pixels can be the first column and the third column of sub-pixels in the first row, the second column and the fourth column of sub-pixels in the second row, the first column and the third column of sub-pixels in the third row, the second column and the fourth column of sub-pixels in the fourth row, the first column and the third column of sub-pixels in the fifth row, the second column and the fourth column of sub-pixels in the sixth row.
[0072] Each group of sub-pixels in different adjacent rows is located in different corresponding columns, for example, the first column and the third column of sub-pixels in the first row, the second column and the fourth column of sub-pixels in the second row. Each group of sub-pixels in different odd rows or even rows is located in the same corresponding column, for example, the first column and the third column of sub-pixels in the first row, the first column and the third column of sub-pixels in the third row; or, the second column and the fourth column of sub-pixels in the second row, the second column and the fourth column of sub-pixels in the fourth row.
[0073] In some embodiments, the embodiments provide a display panel which performs the driving method in at least one of the above embodiments.
[0074] It can be understood that, since the display panel provided by the embodiments performs the driving method in at least one of the above embodiments, the same can further differentiate the final gray scale data of the two adjacent sub-pixels in the same group on the basis of the view angle compensation algorithm, can minimize the brightness difference between the two adjacent sub-pixels in the same group, and can improve or eliminate the phenomenon of the wobble lines by acquiring the polarity of at least one group of sub-pixels in the current frame and the gray scale data to be displayed in the view angle compensation algorithm, and then driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the gray scale data to be displayed.
[0075] It should be noted that the pixel driving architecture of the display panel described above can be, but is not limited to, a Tri-Gate pixel driving architecture, and can also be various pixel driving architectures such as a 1G1D or a Dual-gate pixel driving architecture.
[0076] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.
[0077] The display panel and the driving method provided by the embodiments of the present application are described in detail above, and the principle and implementation of the present application are described by applying specific examples; the above description of the embodiments is only used to help understand the technical solutions and the core idea of the present application; those skilled in the art should understand that: the technical solutions recorded in the above embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A driving method of a display panel, characterized by, The display panel comprises a plurality of sub-pixels, each of the sub-pixels has opposite polarity and different to-be-displayed gray scale data in adjacent frames, and the driving method comprises the following steps: obtaining the polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, each group of sub-pixels comprising two adjacent sub-pixels having the same to-be-displayed gray scale data and opposite polarity in the same row; driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data, so as to minimize the brightness difference between the two adjacent sub-pixels; wherein the step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data, so as to minimize the brightness difference between the two adjacent sub-pixels, comprises at least one of the following modes: the first mode: configuring the gray scale compensation value to be greater than zero; determining the one of the two adjacent sub-pixels with lower brightness; driving the one of the two adjacent sub-pixels with lower brightness to display according to the sum of the gray scale compensation value and the to-be-displayed gray scale data; the second mode: configuring the gray scale compensation value to be greater than zero; determining the one of the two adjacent sub-pixels with higher brightness; driving the one of the two adjacent sub-pixels with higher brightness to display according to the difference between the to-be-displayed gray scale data and the gray scale compensation value; the third mode: configuring the gray scale compensation value to be greater than zero; driving the sub-pixel with positive polarity of the two adjacent sub-pixels to display according to the sum of the gray scale compensation value and the to-be-displayed gray scale data; driving the sub-pixel with negative polarity of the two adjacent sub-pixels to display according to the to-be-displayed gray scale data.
2. The driving method according to claim 1, wherein The to-be-displayed gray scale data comprises to-be-displayed high gray scale data and to-be-displayed low gray scale data, and the step of obtaining the polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, each group of sub-pixels comprising two adjacent sub-pixels having the same to-be-displayed gray scale data and opposite polarity in the same row, comprises: setting each column of sub-pixels in the plurality of sub-pixels to have the same polarity, and the polarities of adjacent column sub-pixels being opposite; setting the sub-pixels of each adjacent two columns in the same row to alternately have to-be-displayed high gray scale data and to-be-displayed low gray scale data.
3. The driving method according to claim 1, wherein The to-be-displayed gray scale data comprises to-be-displayed high gray scale data and to-be-displayed low gray scale data, and the step of obtaining the polarity and to-be-displayed gray scale data of at least one group of sub-pixels in a current frame, each group of sub-pixels comprising two adjacent sub-pixels having the same to-be-displayed gray scale data and opposite polarity in the same row, comprises: setting each two adjacent columns of sub-pixels in the plurality of sub-pixels to have the same polarity, and each two adjacent columns of sub-pixels to alternately have opposite polarities; setting adjacent column sub-pixels in the same row to alternately have to-be-displayed high gray scale data and to-be-displayed low gray scale data.
4. The driving method according to claim 1, wherein The gray scale compensation value is obtained in advance according to the mapping relationship between the brightness difference and the gray scale of the two adjacent sub-pixels.
5. The driving method according to claim 1, wherein The step of driving one of the two adjacent sub-pixels to display according to the gray scale compensation value and the to-be-displayed gray scale data, so as to minimize the brightness difference between the two adjacent sub-pixels, further comprises: driving the other of the two adjacent sub-pixels to display according to the to-be-displayed gray scale data.
6. The driving method according to any one of claims 1 to 5, wherein The step of acquiring polarities and gray scale data to be displayed of at least one group of sub-pixels in a current frame, each group of sub-pixels including two adjacent sub-pixels in the same row with the same gray scale data to be displayed and opposite polarities, further comprises: configuring each group of sub-pixels in different adjacent two rows to be located in corresponding different columns; configuring each group of sub-pixels in different odd rows or even rows to be located in corresponding same columns.
7. A display panel, characterized by, The display panel executes the driving method as claimed in any one of claims 1-6.
Citation Information
Patent Citations
Display panel and display device
CN110780479A