Charging compensation method and device of display panel

Abstract

The application discloses a charging compensation method and device of a display panel. The method comprises the following steps: adjusting charging sequences of multiple rows of sub-pixels; charging the multiple rows of sub-pixels in sequence according to the adjusted charging sequences, so that the display panel displays a light-load picture of a single color; charging the multiple rows of sub-pixels in sequence according to the adjusted charging sequences, so that the display panel displays a heavy-load picture of the single color; and performing charging compensation on the heavy-load picture of the display panel according to the light-load picture. The application can improve the charging compensation effect of the display panel, and further improve the display effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a charging compensation method and apparatus for a display panel. Background Technology

[0002] Large-size display panels generally adopt a normal gate architecture design, such as Figure 1 As shown, in a display panel with a normal gate architecture, each column of sub-pixels 1a has the same color. When performing charge compensation on a display panel with a normal gate architecture, as... Figure 2 As shown, the screen displays a light-load scenario. In this scenario, the grayscale corresponding to each column of sub-pixels is the same (all sub-pixels in a column are either M or N grayscale), meaning there is no data change in a single data line D, therefore there is no charging issue. Figure 3 As shown, the heavy-load screen displays a different grayscale level for each column of sub-pixels (some sub-pixels in a column are grayscale M, and some are grayscale N), meaning there is data variation in one data line D, thus indicating a charging issue. Then, based on the brightness of the light-load screen, the heavy-load screen is adjusted to complete the charging compensation.

[0003] Compared to normal gate architecture display panels, tri-gate architecture display panels have a cost advantage, and large-size display panels are increasingly adopting tri-gate architecture. However, the charging time of a single pixel in a tri-gate architecture display panel is only one-third that of a single pixel in a normal gate architecture display panel, resulting in a significant insufficiency in pixel charging time in tri-gate architecture display panels.

[0004] Because a column of subpixels in a Tri-gate architecture display panel includes subpixels of different colors, there will be color variations when adjusting heavy-load scenes using the charging compensation method of a display panel with a normal gate architecture, resulting in poor display quality. Summary of the Invention

[0005] This application provides a charging compensation method and apparatus for a display panel, which can improve the charging compensation effect and thus improve the display effect of the display panel.

[0006] This application provides a charging compensation method for a display panel, the display panel including multiple rows of sub-pixels, the method including:

[0007] Adjust the charging order of multiple rows of sub-pixels;

[0008] According to the adjusted charging sequence, the multiple rows of sub-pixels are charged sequentially, so that the display panel displays a monochrome light-load image;

[0009] According to the adjusted charging sequence, the multiple rows of sub-pixels are charged sequentially, so that the display panel displays the monochrome reloaded image;

[0010] Based on the lightly loaded screen, charge compensation is performed on the heavy-load screen of the display panel.

[0011] Optionally, the multi-row sub-pixels are divided into at least one group of sub-pixels, and each group of sub-pixels includes n rows of sub-pixels, where n ≥ 3;

[0012] The adjustment of the charging order of the multi-row sub-pixels includes:

[0013] Set the charging order of the multi-row sub-pixels according to their arrangement order;

[0014] Adjust the charging order of the sub-pixels in the 3m-2th row of each group of sub-pixels to be the same as the charging order of the sub-pixels in the 3mth row; m is a positive integer starting from 1, and 3m≤n.

[0015] Optionally, the display panel further includes data lines, which are respectively connected to the multiple rows of sub-pixels;

[0016] The step of charging the multiple rows of sub-pixels sequentially according to the adjusted charging order to enable the display panel to display a monochrome, light-load image also includes:

[0017] When charging each group of sub-pixels according to the adjusted charging order, the sub-pixels of the 3m-1th row are charged after a preset time interval; the preset time interval is the same as the charging time of each row of sub-pixels.

[0018] Within a preset time interval, the data line is controlled to transmit the voltage corresponding to the first gray level.

[0019] Optionally, the step of charging the multiple rows of sub-pixels sequentially according to the adjusted charging order to enable the display panel to display the monochrome overloaded image further includes:

[0020] When charging each group of sub-pixels according to the adjusted charging order, the sub-pixels of the 3m-1 row are charged after a preset time interval.

[0021] Within a preset time interval, the data line is controlled to transmit the voltage corresponding to the second gray level.

[0022] Optionally, the sub-pixels in the 3m-1th row of each group of sub-pixels input the voltage corresponding to the first gray level through the data line during charging, and the sub-pixels in the 3m-2th row and the 3mth row of each group of sub-pixels input the voltage corresponding to the 0 gray level through the data line during charging.

[0023] Optionally, if n = 3a + 1, then the nth row sub-pixel in each group of sub-pixels inputs the voltage corresponding to gray level 0 through the data line during charging, where a is a positive integer.

[0024] Optionally, if n = 3a + 2, then the (n-1)th row sub-pixel and the nth row sub-pixel in each group of sub-pixels input the voltage corresponding to gray level 0 through the data line during charging, where a is a positive integer.

[0025] Optionally, the display panel further includes n timing signal lines, which are connected one-to-one with the n rows of sub-pixels in each group of sub-pixels;

[0026] Each row of sub-pixels receives a timing signal through its corresponding timing signal line during charging.

[0027] Optionally, the step of performing charge compensation on the heavy-load screen of the display panel based on the light-load screen includes:

[0028] Adjust the display brightness of the heavily loaded screen to match that of the lightly loaded screen to complete the charging compensation.

[0029] This application embodiment also provides a charging compensation device for a display panel, the display panel including multiple rows of sub-pixels, the device comprising:

[0030] The adjustment module is used to adjust the charging order of multiple rows of sub-pixels;

[0031] The first charging module is used to charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays a monochrome light-load image;

[0032] The second charging module is used to charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays the monochrome reloaded image;

[0033] The charging compensation module is used to perform charging compensation on the heavy-load screen of the display panel based on the light-load screen.

[0034] The beneficial effects of this application are as follows: the charging order of multiple rows of sub-pixels in the display panel is adjusted so that the multiple rows of sub-pixels are charged sequentially according to the adjusted charging order, so that the display panel displays a monochrome light-load image, and the multiple rows of sub-pixels are charged sequentially according to the adjusted charging order, so that the display panel displays a monochrome heavy-load image. Then, based on the light-load image, the heavy-load image of the display panel is charged to compensate for the image, so as to avoid color change after charging compensation, improve the charging compensation effect of the display panel, and thus improve the display effect of the display panel. Attached Figure Description

[0035] 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.

[0036] Figure 1 A schematic diagram of a display panel with a normal gate architecture;

[0037] Figure 2 This is a grayscale diagram of a lightly loaded image in a display panel with a normal gate architecture.

[0038] Figure 3 This is a grayscale diagram of a reloaded image in a display panel with a normal gate architecture.

[0039] Figure 4 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0040] Figure 5 A schematic flowchart illustrating a charging compensation method for a display panel provided in an embodiment of this application;

[0041] Figure 6 A timing diagram of the timing signals before charging sequence adjustment in the charging compensation method for the display panel provided in the embodiments of this application;

[0042] Figure 7 A timing diagram of the timing signal after charging sequence adjustment in the charging compensation method for the display panel provided in the embodiments of this application;

[0043] Figure 8 This is a grayscale diagram of the data signal in a lightly loaded screen provided in an embodiment of this application.

[0044] Figure 9 This is a grayscale diagram of the data signal in the overloaded screen provided in an embodiment of this application.

[0045] Figure 10 This is a schematic diagram of a charging compensation device for a display panel provided in an embodiment of this application. Detailed Implementation

[0046] The specific structural and functional details disclosed herein are merely representative and are intended to describe exemplary embodiments of this application. However, this application may be implemented in many alternative forms and should not be construed as being limited solely to the embodiments set forth herein.

[0047] In the description of this application, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms “a” and “an” as used herein are also intended to include the plural. It should also be understood that the terms “comprising” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, without excluding the presence or addition of one or more other features, integers, steps, operations, units, components, and / or combinations thereof.

[0050] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0051] See Figure 5 This is a flowchart illustrating the charging compensation method for a display panel provided in an embodiment of the present invention. The display panel can be a Tri-gate architecture display panel. Figure 4As shown, the Tri-gate architecture display panel includes multiple rows and columns of subpixels. Each column of subpixels includes multiple colors of subpixels 1b, and these colors of subpixels 1b are arranged alternately, such as alternating red subpixels R, green subpixels G, and blue subpixels B. The subpixels 1b in each row are of the same color, such as the first row of subpixels 1b all being red subpixels R, the second row of subpixels 1b all being green subpixels G, and the third row of subpixels 1b all being blue subpixels B.

[0052] The display panel also includes multiple data lines, each connected to a corresponding column of sub-pixels. For example... Figure 4 As shown, the multiple data lines may include data lines D1 and D2. Data line D1 is connected to the first column of sub-pixels 1b, and data line D2 is connected to the second column of sub-pixels 1b. The display panel also includes multiple scan lines, which are connected one-to-one with multiple rows of sub-pixels. Figure 4 As shown, multiple scan lines may include scan lines G1 to G9. Scan line G1 is connected to the first row of sub-pixels 1b, scan line G2 is connected to the second row of sub-pixels 1b, and so on. Scan line G9 is connected to the ninth row of sub-pixels 1b.

[0053] like Figure 5 As shown, the method includes steps 101 to 105:

[0054] Step 101: Adjust the charging order of the multi-row sub-pixels.

[0055] To ensure that both monochrome light-load and monochrome heavy-load images can be displayed subsequently, the charging order of multiple rows of sub-pixels needs to be adjusted.

[0056] Specifically, the multi-row sub-pixels are divided into at least one group of sub-pixels, each group of sub-pixels including n rows of sub-pixels, where n ≥ 3. The adjustment of the charging order of the multi-row sub-pixels in step 101 includes:

[0057] Set the charging order of the multi-row sub-pixels according to their arrangement order;

[0058] Adjust the charging order of the sub-pixels in the 3m-2th row of each group of sub-pixels to be the same as the charging order of the sub-pixels in the 3mth row; m is a positive integer starting from 1, and 3m≤n.

[0059] The display panel also includes multiple timing signal lines. Multiple rows of subpixels are divided into at least one group of subpixels according to the number of timing signal lines; that is, the number of rows of subpixels in each group is the same as the number of timing signal lines. If the display panel includes n timing signal lines, then each group of subpixels includes n rows of subpixels. The n timing signal lines are configured one-to-one with the n rows of subpixels in each group, and the n timing signal lines are connected one-to-one with the n rows of subpixels in each group via scan lines.

[0060] For example, the display panel includes eight timing signal lines. Figure 4 As shown, sub-pixels 1b in the first row to the eighth row of sub-pixels 1b in the display panel are divided into a group of sub-pixels. Eight timing signal lines are connected one-to-one with the eight rows of sub-pixels 1b in this group of sub-pixels through the first scan line G1 to the eighth scan line G8.

[0061] When adjusting the charging sequence of multiple rows of subpixels, first set the charging order according to the arrangement order of the subpixels. For example, set the charging order of the multiple rows of subpixels according to the arrangement order from the first row to the last row, which is the same as the arrangement order. Then, adjust the charging order of the subpixels in the 3m-2th row of each group of subpixels to be the same as the charging order of the 3mth row of subpixels, where m = 1, 2, ..., and 3m ≤ n. For example, if n = 12, then m = 1, 2, 3, 4. In a group of subpixels, adjust the charging order of the first row of subpixels to be the same as the charging order of the third row of subpixels, adjust the charging order of the fourth row of subpixels to be the same as the charging order of the sixth row of subpixels, adjust the charging order of the seventh row of subpixels to be the same as the charging order of the ninth row of subpixels, and adjust the charging order of the tenth row of subpixels to be the same as the charging order of the twelfth row of subpixels. For example... Figure 4 As shown, if n = 8, then m = 1, 2. In a group of sub-pixels (the first eight rows of sub-pixels form a group), the charging order of sub-pixels 1b in the first row is adjusted to be the same as the charging order of sub-pixels 1b in the third row, and the charging order of sub-pixels 1b in the fourth row is adjusted to be the same as the charging order of sub-pixels 1b in the sixth row. The charging order of sub-pixels 1b in the other rows remains unchanged. Therefore, the adjusted charging order of the eight rows of sub-pixels 1b is: second row sub-pixels 1b, first row sub-pixels 1b and third row sub-pixels 1b, fifth row sub-pixels 1b, fourth row sub-pixels 1b and sixth row sub-pixels 1b, seventh row sub-pixels 1b, and eighth row sub-pixels 1b.

[0062] The high-level timing signals transmitted by the timing signal lines can control the charging order of multiple rows of sub-pixels. By adjusting the order in which the high-level timing signals are transmitted on the timing signal lines, the charging order of multiple rows of sub-pixels can be adjusted. In n timing signal lines, delaying the high-level timing signal output of the (3m-2)th timing signal line so that its output time is the same as that of the (3m-1)th timing signal line, while keeping the output times of the other timing signal lines unchanged, will adjust the charging order of the (3m-2)th row of sub-pixels in each group of sub-pixels to be the same as that of the (3m-1)th row, while keeping the charging order of the other rows unchanged.

[0063] like Figure 6As shown, before the charging sequence is adjusted, eight timing signal lines CK1 to CK8 sequentially output high-level timing signals to eight rows of sub-pixels in a group of sub-pixels to control the sequential charging of these eight rows. After the charging sequence is adjusted, the high-level timing signal output of timing signal line CK1 is delayed, making the high-level timing signals of timing signal line CK1 and CK3 output at the same time. The high-level timing signal output of timing signal line CK4 is also delayed, making the high-level timing signals of timing signal line CK4 and CK6 output at the same time. The high-level timing signals of the other timing signal lines remain unchanged. Figure 7 As shown, the adjusted sequence of the eight timing signal lines CK1 to CK8 outputting high-level timing signals is as follows: timing signal line CK2 outputs a high-level timing signal, timing signal lines CK1 and CK3 output high-level timing signals, timing signal line CK5 outputs a high-level timing signal, timing signal lines CK4 and CK6 output high-level timing signals, timing signal line CK7 outputs a high-level timing signal, and timing signal line CK8 outputs a high-level timing signal.

[0064] Because the high-level timing signal output of the 3m-2 timing signal line is delayed, while the high-level timing signals output by other timing signal lines remain unchanged, there is no longer a high-level timing signal during the original high-point timing signal output time of the 3m-2 timing signal line. For example... Figure 7 As shown, the high-level timing signal output time of the timing signal line is t. There is no high-level timing signal during the first time t and the fourth time t (between 3t and 4t).

[0065] Step 102: Charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays a monochrome light-load image.

[0066] During the time the timing signal line outputs a high-level timing signal, the data line outputs a high-level data signal, thus charging the corresponding sub-pixel. When charging the sub-pixels in the 3m-1th row of each group of sub-pixels, the 3m-1th timing signal line inputs a high-level timing signal to the sub-pixels in the 3m-1th row through the scan line, and the data line inputs a high-level data signal to the sub-pixels in the 3m-1th row. This high-level data signal is the voltage corresponding to the first gray level. When charging the sub-pixels in the 3m-2th and 3mth rows of each group of sub-pixels, the 3m-2th timing signal line inputs a high-level timing signal to the sub-pixels in the 3m-2th row through the scan line, and simultaneously the 3mth timing signal line inputs a high-level timing signal to the sub-pixels in the 3mth row through the scan line, and the data line inputs a high-level data signal to the sub-pixels in the 3m-2th and 3mth rows. This high-level data signal is the voltage corresponding to the 0 gray level.

[0067] If n = 3a, where a is a positive integer, it indicates that n is a multiple of 3, meaning the number of sub-pixel rows in a group of sub-pixels is a multiple of 3, or the number of timing signal lines is a multiple of 3. The (3m-1)th row of sub-pixels in each group receives the voltage corresponding to the first gray level during charging, while the (3m-2)th and (3m)th rows of sub-pixels in each group receive the voltage corresponding to the 0 gray level during charging. For example, if n = 6, the second and fifth rows of sub-pixels receive the voltage corresponding to the first gray level during charging, while the first, third, fourth, and sixth rows of sub-pixels receive the voltage corresponding to the 0 gray level during charging.

[0068] If n = 3a + 1, where a is a positive integer, it means that n divided by 3 leaves a remainder of 1, i.e., the number of timing signal lines divided by 3 leaves a remainder of 1. During charging, the sub-pixels in the 3m-1th row of each group of sub-pixels input the voltage corresponding to the first gray level; the sub-pixels in the 3m-2th and 3mth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the nth row of each group of sub-pixels input the voltage corresponding to the 0 gray level through the data lines during charging. For example, if n = 7, the sub-pixels in the second and fifth rows input the voltage corresponding to the first gray level during charging; the sub-pixels in the first, third, fourth, and sixth rows input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the seventh row input the voltage corresponding to the 0 gray level during charging.

[0069] If n = 3a + 2, where a is a positive integer, it means that n divided by 3 leaves a remainder of 2, i.e., the number of timing signal lines divided by 3 leaves a remainder of 2. During charging, the sub-pixels in the 3m-1th row of each group of sub-pixels input the voltage corresponding to the first gray level; the sub-pixels in the 3m-2th and 3mth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the (n-1th)th and nth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level through the data lines during charging. For example, if n = 8, the sub-pixels in the second and fifth rows input the voltage corresponding to the first gray level during charging; the sub-pixels in the first, third, fourth, and sixth rows input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the seventh and eighth rows input the voltage corresponding to the 0 gray level during charging.

[0070] Additionally, during the time when the timing signal line 3m-2 originally outputs a high-level timing signal, the data line still outputs a high-level data signal. Since there is no high-level timing signal during this time after adjustment, the sub-pixels are not charged. Specifically, the step of charging the multiple rows of sub-pixels sequentially according to the adjusted charging order to make the display panel display a monochrome light-load image further includes:

[0071] When charging each group of sub-pixels according to the adjusted charging order, the sub-pixels of the 3m-1th row are charged after a preset time interval; the preset time interval is the same as the charging time of each row of sub-pixels.

[0072] Within a preset time interval, the data line is controlled to transmit the voltage corresponding to the first gray level.

[0073] The preset duration of the interval is the time it takes for the timing signal line 3m-2 to output a high-level timing signal. The time for the timing signal line to output a high-level timing signal is the charging time of one row of sub-pixels, ensuring that the preset duration of the interval is the same as the charging time of each row of sub-pixels. Within the preset duration of the interval, the data line continues to output a high-level data signal, which is the voltage corresponding to the first grayscale. Since the data line outputs the voltage corresponding to the first grayscale within the preset duration of the interval, when charging the sub-pixels in the 3m-1 row of a group of sub-pixels after the preset duration of the interval, the data line still outputs the voltage corresponding to the first grayscale. That is, there is no data change in the data line, allowing the display panel to display a monochrome, lightly loaded image.

[0074] Combination Figure 4 , Figure 7 and Figure 8As shown, when charging a group of sub-pixels, during time t, the timing signal lines do not output high-level timing signals, and data lines D1 and D2 output the voltage corresponding to the first grayscale M. During this time, no sub-pixels are charged. From time t to 2t, timing signal line CK2 outputs a high-level timing signal to the second row of sub-pixels 1b via scan line G2, and data lines D1 and D2 output the voltage corresponding to the first grayscale M to charge the second row of sub-pixels 1b. From time 2t to 3t, timing signal line CK1 outputs a high-level timing signal to the first row of sub-pixels 1b via scan line G1, and simultaneously, timing signal line CK3 outputs a high-level timing signal to the third row of sub-pixels 1b via scan line G3. Data lines D1 and D2 output the voltage corresponding to the 0 grayscale to charge both the first and third row of sub-pixels 1b. From time 3t to 4t, the timing signal lines do not output high-level timing signals, and data lines D1 and D2 output the voltage corresponding to the first grayscale M. During this time, no sub-pixels are charged. During time intervals 4t to 5t, timing signal line CK5 outputs a high-level timing signal to the fifth row sub-pixel 1b via scan line G5, and data lines D1 and D2 output the voltage corresponding to the first grayscale M to charge the fifth row sub-pixel 1b. During time intervals 5t to 6t, timing signal line CK4 outputs a high-level timing signal to the fourth row sub-pixel 1b via scan line G4, and simultaneously, timing signal line CK6 outputs a high-level timing signal to the sixth row sub-pixel 1b via scan line G6. Data lines D1 and D2 output the voltage corresponding to the 0 grayscale to charge both the fourth and sixth row sub-pixels 1b. During time intervals 6t to 7t, timing signal line CK7 outputs a high-level timing signal to the seventh row sub-pixel 1b via scan line G7, and data lines D1 and D2 output the voltage corresponding to the 0 grayscale to charge the seventh row sub-pixel 1b. During the time interval 7t to 8t, timing signal line CK8 outputs a high-level timing signal to the eighth row sub-pixel 1b through scan line G8, and data lines D1 and D2 output the voltage corresponding to grayscale 0 to charge the eighth row sub-pixel 1b. This process continues, charging the next group of sub-pixels after completing the charging of one group, until all sub-pixels are charged. Because the second and fifth row sub-pixels 1b in a group are charged with the voltage corresponding to the first grayscale M, while other rows of sub-pixels are charged with the voltage corresponding to grayscale 0, and the second and fifth row sub-pixels 1b in a group are green sub-pixels G, the display panel shows a light green image.

[0075] Step 103: Charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays the monochrome overloaded image.

[0076] When charging the sub-pixels in the 3m-1th row of each group of sub-pixels, the 3m-1th timing signal line outputs a high-level timing signal to the sub-pixels in the 3m-1th row through the scan line, and the data line outputs a high-level data signal to the sub-pixels in the 3m-1th row. This high-level data signal is the voltage corresponding to the first gray level. When charging the sub-pixels in the 3m-2th row and the 3mth row of each group of sub-pixels, the 3m-2th timing signal line outputs a high-level timing signal to the sub-pixels in the 3m-2th row through the scan line, and simultaneously the 3mth timing signal line outputs a high-level timing signal to the sub-pixels in the 3mth row through the scan line, and the data line outputs a high-level data signal to the sub-pixels in the 3m-2th row and the 3mth row. This high-level data signal is the voltage corresponding to the 0 gray level.

[0077] If n = 3a, where a is a positive integer, it indicates that n is a multiple of 3, meaning the number of sub-pixel rows in a group of sub-pixels is a multiple of 3, or the number of timing signal lines is a multiple of 3. The (3m-1)th row of sub-pixels in each group receives the voltage corresponding to the first gray level during charging, while the (3m-2)th and (3m)th rows of sub-pixels in each group receive the voltage corresponding to the 0 gray level during charging. For example, if n = 6, the second and fifth rows of sub-pixels receive the voltage corresponding to the first gray level during charging, while the first, third, fourth, and sixth rows of sub-pixels receive the voltage corresponding to the 0 gray level during charging.

[0078] If n = 3a + 1, where a is a positive integer, it means that n divided by 3 leaves a remainder of 1, i.e., the number of timing signal lines divided by 3 leaves a remainder of 1. During charging, the sub-pixels in the 3m-1th row of each group of sub-pixels input the voltage corresponding to the first gray level; the sub-pixels in the 3m-2th and 3mth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the nth row of each group of sub-pixels input the voltage corresponding to the 0 gray level through the data lines during charging. For example, if n = 7, the sub-pixels in the second and fifth rows input the voltage corresponding to the first gray level during charging; the sub-pixels in the first, third, fourth, and sixth rows input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the seventh row input the voltage corresponding to the 0 gray level during charging.

[0079] If n = 3a + 2, where a is a positive integer, it means that n divided by 3 leaves a remainder of 2, i.e., the number of timing signal lines divided by 3 leaves a remainder of 2. During charging, the sub-pixels in the 3m-1th row of each group of sub-pixels input the voltage corresponding to the first gray level; the sub-pixels in the 3m-2th and 3mth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the (n-1th)th and nth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level through the data lines during charging. For example, if n = 8, the sub-pixels in the second and fifth rows input the voltage corresponding to the first gray level during charging; the sub-pixels in the first, third, fourth, and sixth rows input the voltage corresponding to the 0 gray level during charging; and the sub-pixels in the seventh and eighth rows input the voltage corresponding to the 0 gray level during charging.

[0080] Additionally, during the time when the timing signal line 3m-2 originally outputs a high-level timing signal, the data line still outputs a high-level data signal. Since there is no high-level timing signal during this time after adjustment, the sub-pixels are not charged. Specifically, the step of charging the multiple rows of sub-pixels sequentially according to the adjusted charging order to make the display panel display a monochrome overloaded image further includes:

[0081] When charging each group of sub-pixels according to the adjusted charging order, the sub-pixels of the 3m-1 row are charged after a preset time interval.

[0082] Within a preset time interval, the data line is controlled to transmit the voltage corresponding to the second gray level.

[0083] The preset interval duration is the time it takes for the timing signal line 3m-2 to output a high-level timing signal. The time for the timing signal line to output a high-level timing signal is the charging time of one row of sub-pixels, ensuring that the preset interval duration is the same as the charging time of each row of sub-pixels. Within the preset interval duration, the data line continues to output a high-level data signal, which is the voltage corresponding to the second grayscale. Since the data line outputs the voltage corresponding to the second grayscale within the preset interval duration, when charging the sub-pixels in the 3m-1 row of a group of sub-pixels after the preset interval duration, the data line outputs the voltage corresponding to the first grayscale. The first grayscale is different from the second grayscale, meaning there is a data change in the data line, causing the display panel to display a monochrome overloaded image.

[0084] Combination Figure 4 , Figure 7 and Figure 9As shown, when charging a group of sub-pixels, during time t, the timing signal lines do not output high-level timing signals, and data lines D1 and D2 output the voltage corresponding to the second grayscale N. During this time, no sub-pixels are charged. From time t to 2t, timing signal line CK2 outputs a high-level timing signal to the second row of sub-pixels 1b via scan line G2, and data lines D1 and D2 output the voltage corresponding to the first grayscale M to charge the second row of sub-pixels 1b. From time 2t to 3t, timing signal line CK1 outputs a high-level timing signal to the first row of sub-pixels 1b via scan line G1, and simultaneously, timing signal line CK3 outputs a high-level timing signal to the third row of sub-pixels 1b via scan line G3. Data lines D1 and D2 output the voltage corresponding to the 0 grayscale to charge both the first and third row of sub-pixels 1b. From time 3t to 4t, the timing signal lines do not output high-level timing signals, and data lines D1 and D2 output the voltage corresponding to the second grayscale N. During this time, no sub-pixels are charged. During time intervals 4t to 5t, timing signal line CK5 outputs a high-level timing signal to the fifth row sub-pixel 1b via scan line G5, and data lines D1 and D2 output the voltage corresponding to the first grayscale M to charge the fifth row sub-pixel 1b. During time intervals 5t to 6t, timing signal line CK4 outputs a high-level timing signal to the fourth row sub-pixel 1b via scan line G4, and simultaneously, timing signal line CK6 outputs a high-level timing signal to the sixth row sub-pixel 1b via scan line G6. Data lines D1 and D2 output the voltage corresponding to the 0 grayscale to charge both the fourth and sixth row sub-pixels 1b. During time intervals 6t to 7t, timing signal line CK7 outputs a high-level timing signal to the seventh row sub-pixel 1b via scan line G7, and data lines D1 and D2 output the voltage corresponding to the 0 grayscale to charge the seventh row sub-pixel 1b. During the time interval 7t to 8t, timing signal line CK8 outputs a high-level timing signal to the eighth row sub-pixel 1b through scan line G8, and data lines D1 and D2 output the voltage corresponding to grayscale 0 to charge the eighth row sub-pixel 1b. This process continues, charging the next group of sub-pixels after completing the charging of the first group, until all sub-pixels are charged. Since the second and fifth row sub-pixels 1b in a group are charged with the voltage corresponding to the first grayscale M, and the other rows of sub-pixels 1b are charged with the voltage corresponding to grayscale 0, and the second and fifth row sub-pixels 1b in a group are green sub-pixels G, the display panel shows a green overloaded image.

[0085] Step 104: Based on the light-load screen, perform charging compensation on the heavy-load screen of the display panel.

[0086] Since there are no data changes in each data line during a light-load scene, there is no charging issue. However, during a heavy-load scene, there are data changes in each data line, and the voltage cannot reach the target voltage within the specified charging time, leading to a charging problem. Therefore, the heavy-load scene can be adjusted based on the light-load scene. Furthermore, this embodiment adjusts the charging order of multiple rows of sub-pixels to make both the light-load and heavy-load scenes the same monochrome image, so that chromaticity changes do not occur when adjusting the heavy-load scene based on the light-load scene.

[0087] Specifically, the step of performing charge compensation on the heavy-load screen of the display panel based on the light-load screen includes:

[0088] Adjust the display brightness of the heavily loaded screen to match that of the lightly loaded screen to complete the charging compensation.

[0089] When the display panel displays a lightly loaded monochrome image, the brightness of the lightly loaded image is measured using an optical measurement device, and this brightness is used as the target brightness. When the display panel displays a heavily loaded monochrome image, the brightness of the heavily loaded image is measured using the optical measurement device, and the brightness of the heavily loaded image is adjusted, i.e., the data signal output from the data cable is adjusted, so that the adjusted brightness of the heavily loaded image is the same as the target brightness, thereby completing the charging compensation for the heavily loaded image of the display panel.

[0090] In summary, the embodiments of this application adjust the charging order of multiple rows of sub-pixels in the display panel so that the multiple rows of sub-pixels are charged sequentially according to the adjusted charging order, so that the display panel displays a monochrome light-load image. Then, the multiple rows of sub-pixels are charged sequentially according to the adjusted charging order, so that the display panel displays a monochrome heavy-load image. Furthermore, based on the light-load image, the heavy-load image of the display panel is charged to compensate for the image, thereby avoiding color changes after charging compensation, improving the charging compensation effect of the display panel, and thus improving the display effect of the display panel.

[0091] Accordingly, this application also provides a charging compensation device for a display panel, which can realize the above-mentioned charging compensation method for the display panel.

[0092] like Figure 10 As shown, the charging compensation device for the display panel provided in this application embodiment includes:

[0093] Adjustment module 21 is used to adjust the charging order of multi-row sub-pixels;

[0094] The first charging module 22 is used to charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays a monochrome light load image;

[0095] The second charging module 23 is used to charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays the monochrome reloaded image;

[0096] The charging compensation module 24 is used to perform charging compensation on the heavy load screen of the display panel according to the light load screen.

[0097] In summary, the embodiments of this application adjust the charging order of multiple rows of sub-pixels in the display panel so that the multiple rows of sub-pixels are charged sequentially according to the adjusted charging order, so that the display panel displays a monochrome light-load image. Then, the multiple rows of sub-pixels are charged sequentially according to the adjusted charging order, so that the display panel displays a monochrome heavy-load image. Furthermore, based on the light-load image, the heavy-load image of the display panel is charged to compensate for the image, thereby avoiding color changes after charging compensation, improving the charging compensation effect of the display panel, and thus improving the display effect of the display panel.

[0098] In summary, although the present application has disclosed the preferred embodiments as described above, the above preferred embodiments are not intended to limit the present application. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be determined by the scope defined in the claims.

Claims

1. A charging compensation method for a display panel, characterized in that, The display panel is a Tri-gate architecture display panel, the display panel includes multiple rows of sub-pixels, and the method includes: Adjust the charging order of the multi-row sub-pixels; According to the adjusted charging sequence, the multiple rows of sub-pixels are charged sequentially, so that the display panel displays a monochrome light-load image; According to the adjusted charging sequence, the multiple rows of sub-pixels are charged sequentially, so that the display panel displays a monochrome reloaded image; Based on the lightly loaded screen, charge compensation is performed on the heavy-load screen of the display panel; The multi-row sub-pixels are divided into at least one group of sub-pixels, and each group of sub-pixels includes n rows of sub-pixels, where n≥3; Adjusting the charging order of the multi-row sub-pixels includes: Set the charging order of the multi-row sub-pixels according to their arrangement order; Adjust the charging order of the sub-pixels in the 3m-2th row of each group of sub-pixels to be the same as the charging order of the sub-pixels in the 3mth row, and charge the sub-pixels in the 3m-1th row after a preset time interval; m is a positive integer starting from 1, and 3m≤n.

2. The charging compensation method for a display panel as described in claim 1, characterized in that, The display panel also includes data lines, which are respectively connected to the multiple rows of sub-pixels; The step of charging the multiple rows of sub-pixels sequentially according to the adjusted charging order to enable the display panel to display a monochrome, light-load image also includes: When charging each group of sub-pixels according to the adjusted charging order, the sub-pixels of the 3m-1th row are charged after a preset time interval; the preset time interval is the same as the charging time of each row of sub-pixels. Within a preset time interval, the data line is controlled to transmit the voltage corresponding to the first gray level.

3. The charging compensation method for the display panel as described in claim 2, characterized in that, The step of charging the multiple rows of sub-pixels sequentially according to the adjusted charging order, so that the display panel displays the monochrome overloaded image, further includes: When charging each group of sub-pixels according to the adjusted charging order, the sub-pixels of the 3m-1 row are charged after a preset time interval. Within a preset time interval, the data line is controlled to transmit the voltage corresponding to the second gray level.

4. The charging compensation method for the display panel as described in claim 3, characterized in that, During charging, the sub-pixels in the 3m-1th row of each group of sub-pixels input the voltage corresponding to the first gray level through the data line, and the sub-pixels in the 3m-2th and 3mth rows of each group of sub-pixels input the voltage corresponding to the 0 gray level through the data line during charging.

5. The charging compensation method for a display panel as described in claim 4, characterized in that, If n = 3a + 1, then the nth row of sub-pixels in each group of sub-pixels will input the voltage corresponding to gray level 0 through the data line during charging, where a is a positive integer.

6. The charging compensation method for a display panel as described in claim 4, characterized in that, If n = 3a + 2, then the (n-1)th row sub-pixel and the nth row sub-pixel in each group of sub-pixels will input the voltage corresponding to gray level 0 through the data line during charging, where a is a positive integer.

7. The charging compensation method for a display panel as described in claim 2, characterized in that, The display panel also includes n timing signal lines, which are connected one-to-one with the n rows of sub-pixels in each group of sub-pixels; Each row of sub-pixels receives a timing signal through its corresponding timing signal line during charging.

8. The charging compensation method for a display panel as described in claim 1, characterized in that, The step of performing charge compensation on the heavy-load screen of the display panel based on the light-load screen includes: Adjust the display brightness of the heavily loaded screen to match that of the lightly loaded screen to complete the charging compensation.

9. A charging compensation device for a display panel, characterized in that, The display panel is a Tri-gate architecture display panel, the display panel includes multiple rows of sub-pixels, and the device includes: An adjustment module is used to adjust the charging order of multiple rows of sub-pixels; wherein the multiple rows of sub-pixels are divided into at least one group of sub-pixels, and each group of sub-pixels includes n rows of sub-pixels, where n≥3; The first charging module is used to charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays a monochrome light-load image; The second charging module is used to charge the multi-row sub-pixels sequentially according to the adjusted charging order, so that the display panel displays a monochrome reloaded image; A charging compensation module is used to perform charging compensation for heavy-load scenes on the display panel based on the light-load scenes. The adjustment module is further configured to set the charging order of the multi-row sub-pixels according to the arrangement order of the multi-row sub-pixels; adjust the charging order of the sub-pixels in the 3m-2th row of each group of sub-pixels to be the same as the charging order of the sub-pixels in the 3mth row, and charge the sub-pixels in the 3m-1th row after a preset time interval; m is a positive integer starting from 1, and 3m≤n.

Images