Display control method of display device and display device

Abstract

The application provides a display control method of a display device and the display device. According to image data corresponding to a to-be-displayed picture, whether the to-be-displayed picture includes a crosstalk display area is judged. When the to-be-displayed picture includes the crosstalk display area, the image data corresponding to the to-be-displayed picture is converted into first sub-frame display data and second sub-frame display data, and the refresh frequency of a display panel is converted from a first frequency to a second frequency, so as to control a plurality of first sub-pixels to display a first sub-frame according to the first sub-frame display data, and detect a first coupling amount corresponding to a common voltage in the display panel. Then, according to the first coupling amount, the proportion of second sub-pixels receiving positive polarity gray scale voltage and the proportion of second sub-pixels receiving negative polarity gray scale voltage in a plurality of second sub-pixels receiving the second sub-frame display data are adjusted, and the plurality of second sub-pixels are controlled to display a second sub-frame, so as to utilize the second coupling amount corresponding to the common voltage in the second sub-frame and the first coupling amount.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically to a display control method and a display device. Background Technology

[0002] As display panels evolve towards higher resolution, higher refresh rates, and larger sizes, pixel charging times are becoming increasingly shorter. For example, a 75-inch display panel with 8K resolution and a 60Hz refresh rate has a measured pixel charging time of 1.6 microseconds. However, within the display panel, voltage changes in data signals can cause variations in the common voltage through parasitic capacitance coupling. Figure 1 As shown. If the time it takes for the common voltage to fluctuate due to coupling effects and recover to the reference voltage is greater than the charging time of one scan line, it will affect the display potential of the next frame pixels, causing brightness differences and resulting in display crosstalk problems on the display panel. Generally, the time it takes for the common voltage to fluctuate due to coupling effects and recover to the reference voltage (such as...) Figure 2 As shown in t1, the time interval is approximately 10 microseconds or more. Therefore, display crosstalk issues will be more noticeable in large-size, high-resolution, high-refresh-rate display panels (such as 8K display panels). Summary of the Invention

[0003] This invention provides a display control method and a display device, which can improve the display crosstalk problem.

[0004] This invention provides a display control method for a display device, comprising:

[0005] Acquire image data of the screen to be displayed on the display panel, and determine whether the screen to be displayed includes a crosstalk display area based on the image data;

[0006] When the screen to be displayed includes the crosstalk display area, the image data corresponding to the screen to be displayed is converted into first subframe display data and second subframe display data;

[0007] The refresh rate of the display panel is controlled to be switched from a first frequency to a second frequency, and multiple first sub-pixels are controlled to display the first sub-frame according to the first sub-frame display data, and a first coupling amount corresponding to the common voltage in the display panel is detected; wherein, the second frequency is greater than the first frequency;

[0008] Based on the first coupling amount, the proportion of the second sub-pixels receiving positive grayscale voltage and the second sub-pixels receiving negative grayscale voltage among the multiple second sub-pixels corresponding to receiving the second sub-frame display data is adjusted, and the multiple second sub-pixels are controlled to display the second sub-frame, so as to utilize the common voltage corresponding to the second coupling amount in the second sub-frame and the first coupling amount; wherein, the display panel includes multiple first sub-pixels and multiple second sub-pixels, and the first sub-pixels and second sub-pixels are cross-distributed.

[0009] Embodiments of the present invention also provide a display device, including a display panel and a control module. The display panel includes a plurality of first sub-pixels and a plurality of second sub-pixels, and the control module is electrically connected to the display panel. The control module is configured to execute any of the above-described display control methods to control the display panel to display.

[0010] This invention provides a display control method and a display device. By determining whether the image data corresponding to the image to be displayed includes a crosstalk display area, the method determines whether the image to be displayed is prone to crosstalk. When the image data includes a crosstalk display area, the image data corresponding to the image data is converted into first subframe display data and second subframe display data. The refresh rate of the display panel is changed from a first frequency to a second frequency to control multiple first sub-pixels to display the first subframe according to the first subframe display data, and a first coupling amount corresponding to a common voltage within the display panel is detected. Then, based on the first coupling amount, the proportion of second sub-pixels receiving positive grayscale voltage and second sub-pixels receiving negative grayscale voltage among the multiple second sub-pixels receiving the second subframe display data is adjusted, and the multiple second sub-pixels are controlled to display the second subframe. This utilizes the second coupling amount corresponding to the common voltage in the second subframe and the first coupling amount to improve the display crosstalk problem. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a diagram showing the change of the common voltage coupled to the data signal voltage variation provided in the embodiments of the present invention;

[0013] Figure 2 This is a schematic diagram illustrating the time it takes for the common voltage to change due to coupling effects and recover to the reference voltage, as provided in an embodiment of the present invention.

[0014] Figure 3 This is a schematic diagram of the gamma voltage symmetry adjustment method;

[0015] Figure 4 This is a schematic diagram of the common voltage adjustment method;

[0016] Figure 5 This is a schematic diagram of the structure of the display device provided in an embodiment of the present invention;

[0017] Figures 6A to 6C This is a flowchart of the display control method provided in an embodiment of the present invention;

[0018] Figure 7 This is a schematic diagram of the display of the first subframe and the second subframe provided in an embodiment of the present invention;

[0019] Figure 8 This is a flowchart of determining the crosstalk display area provided in an embodiment of the present invention;

[0020] Figure 9 This is a flowchart illustrating the relationship between determining the coupling amount and grayscale voltage polarity adjustment, provided in an embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0022] Specifically, Figure 3 This is a schematic diagram of the gamma voltage symmetry adjustment method. Figure 4 This is a schematic diagram of the common voltage adjustment method. L255+ represents the positive polarity grayscale voltage corresponding to grayscale 255, L255- represents the negative polarity grayscale voltage corresponding to grayscale 255, ΔV+ indicates a positive common voltage coupling amount, and ΔV- indicates a negative common voltage coupling amount.

[0023] Using gamma voltage symmetry adjustment method and common voltage change adjustment method can reduce the probability of display crosstalk problem in display panel, but it will increase the probability of display panel flicker problem, and cannot fundamentally solve the display crosstalk problem.

[0024] Therefore, this application provides a display control method and a display device that can improve the display crosstalk problem.

[0025] Figure 5 This is a schematic diagram of the structure of the display device provided in an embodiment of the present invention. Figures 6A to 6C This is a flowchart of a display control method provided in an embodiment of the present invention. The present invention provides a display control method for a display device, which can improve the display crosstalk problem while controlling the display panel to achieve display.

[0026] Please continue reading. Figure 5 The display device includes a display panel 10 and a control module 20.

[0027] The display panel 10 includes multiple sub-pixels (Spi), multiple data lines (DL), and multiple scan lines (GL). The multiple sub-pixels (Spi) are electrically connected to the multiple data lines (DL) and the multiple scan lines (GL). Each sub-pixel (Spi) is configured to perform a display function based on a scan signal transmitted via the corresponding electrically connected scan line (GL) and a data signal transmitted via the corresponding electrically connected data line (DL).

[0028] The plurality of sub-pixels Spi includes a plurality of first sub-pixels Spi1 and a plurality of second sub-pixels Spi2.

[0029] Optionally, the display panel 10 includes a passive display panel 10 (such as a liquid crystal display panel 10).

[0030] Optionally, the driving architecture of the display panel 10 includes, but is not limited to, a one-gate-one-data (DL) driving architecture, a three-gate-one-data (Tri-Gate) driving architecture, etc.

[0031] Optionally, multiple data lines DL are arranged along a first direction D1, each data line DL extends along a second direction D2, and multiple scan lines GL are arranged along the second direction D2, each scan line GL extends along the first direction D1. The first direction D1 and the second direction D2 are intersecting.

[0032] Because multiple sub-pixels (Spi) are electrically connected to the same data line (DL), each sub-pixel (Spi) connected to the same data line (DL) needs to be supplied with the required voltage by the same data line (DL) to achieve the corresponding grayscale display. Therefore, the data signal transmitted by the same data line (DL) will have voltage jumps corresponding to the grayscale levels required by the multiple sub-pixels (Spi). Furthermore, each data signal transmitted by the data line (DL) will have a corresponding voltage jump operation. These voltage jumps in the data signal will couple to the common voltage through parasitic capacitance, causing a change in the common voltage. It should be noted that crosstalk display generally corresponds to displays with large grayscale jumps.

[0033] The display panel 10 includes components not shown in the figure, such as a common electrode, pixel electrodes, liquid crystal molecules, and a backlight module. By controlling the voltage difference applied between the common electrode and the pixel electrodes, the deflection angle of the liquid crystal molecules can be controlled, thereby enabling the sub-pixels (SpI) to perform display functions in conjunction with the backlight module.

[0034] The pixel electrode receives the data signal transmitted by the data line DL. A switch (such as a transistor) can be placed between the data line DL and the pixel electrode to control the on / off timing of the switch using the scan signal transmitted by the scan line GL, thereby controlling the timing of the pixel electrode receiving the data signal.

[0035] Optionally, the common electrode may be arranged on an entire surface, and the common electrode is configured to receive a common voltage.

[0036] Optionally, in some embodiments, the display panel 10, in addition to display functions, may also include sensing functions such as touch functions. Accordingly, the plurality of common electrodes can be arranged in an array so that during the display phase to realize the display function, the common electrodes receive a common voltage; and during the sensing phase to realize the touch function and other sensing functions, the common electrodes receive a modulated voltage.

[0037] The control module 20 is electrically connected to the display panel 10, and the control module 20 is configured to control the display panel 10 to perform display functions.

[0038] Optionally, the control module 20 includes at least one of a timing controller, a central processing unit, a microprocessor, etc.

[0039] Optionally, the control module 20 further includes a gate driver chip and a source driver chip, wherein the gate driver chip is configured to provide the required scan signal to the display panel 10, and the source driver chip is configured to provide the required data signal to the display panel 10.

[0040] Please continue reading. Figures 6A to 6C The display control method includes:

[0041] The image data of the screen to be displayed on the display panel 10 is obtained, and the screen to be displayed is determined based on the image data to determine whether the screen to be displayed includes a crosstalk display area;

[0042] When the screen to be displayed includes the crosstalk display area, the image data corresponding to the screen to be displayed is converted into first subframe display data and second subframe display data;

[0043] The refresh rate of the display panel 10 is controlled to be changed from a first frequency to a second frequency, and multiple first sub-pixels Spi1 are controlled to display the first sub-frame according to the first sub-frame display data, and the first coupling amount corresponding to the common voltage in the display panel 10 is detected; wherein, the second frequency is greater than the first frequency;

[0044] Based on the first coupling amount, the proportion of the second sub-pixels Spi2 receiving positive grayscale voltage and the second sub-pixels Spi2 receiving negative grayscale voltage among the plurality of second sub-pixels Spi2 corresponding to receiving the second sub-frame display data is adjusted, and the plurality of second sub-pixels Spi2 are controlled to display the second sub-frame, so as to utilize the common voltage corresponding to the second coupling amount in the second sub-frame and the first coupling amount; wherein, the display panel 10 includes a plurality of first sub-pixels Spi1 and a plurality of second sub-pixels Spi2, and the first sub-pixels Spi1 and the second sub-pixels Spi2 are cross-distributed.

[0045] The display control method provided in this application determines whether the screen to be displayed contains display crosstalk issues by judging whether the screen to be displayed includes the crosstalk display area based on the image data corresponding to the screen to be displayed.

[0046] When the image to be displayed includes the crosstalk display area, it corresponds to an image containing display crosstalk issues. When the image to be displayed does not include the crosstalk display area, it corresponds to an image not containing display crosstalk issues. Accordingly, when the image to be displayed does not include the crosstalk display area, the multiple sub-pixels (Spi) of the display panel are controlled to display according to the grayscale voltage corresponding to the image data.

[0047] When the screen to be displayed corresponds to a screen containing display crosstalk issues, the image data corresponding to the screen to be displayed is converted into the first subframe display data and the second subframe display data, so that the display data originally corresponding to one frame of the screen to be displayed is split into the display data of two subframes.

[0048] After splitting one frame of display data into two sub-frames, in order for the display panel 10 to match the display of the two sub-frames, the refresh rate of the display panel 10 is controlled to be changed from a first frequency to a second frequency. The second frequency is greater than the first frequency, thereby increasing the refresh rate of the display panel 10.

[0049] By controlling multiple first sub-pixels Spi1 to display the first sub-frame according to the first sub-frame display data, and detecting the first coupling amount corresponding to the common voltage within the display panel 10, the polarity of the grayscale voltage received by at least some of the second sub-pixels Spi2 is adjusted according to the first coupling amount, so that the second coupling amount generated when the second sub-frame is displayed can neutralize the first coupling amount, thereby improving the display crosstalk problem.

[0050] That is, Figure 7 This is a schematic diagram of the display of the first subframe and the second subframe provided in an embodiment of the present invention. When the screen to be displayed corresponds to a display screen containing display crosstalk problems, the screen F1, which originally displays one frame on the display panel, is divided into a first subframe display screen F11 and a second subframe display screen F12. When displaying the first subframe screen, multiple first sub-pixels Spi1 participate in the display, while multiple second sub-pixels Spi2 do not participate in the display. When displaying the second subframe screen, multiple first sub-pixels Spi1 do not participate in the display, while multiple second sub-pixels Spi2 participate in the display. When implementing the display of the first subframe, the polarity of the grayscale voltage received by the multiple first sub-pixels Spi1 can be kept the same as the polarity of the grayscale voltage corresponding to the display data of the first subframe. When implementing the display of the second subframe, the polarity of the grayscale voltage received by at least a portion of the second sub-pixels Spi2 is obtained after adjustment according to the first coupling amount, so as to use the second coupling amount generated when the second subframe is displayed to neutralize the first coupling amount and improve the display crosstalk problem.

[0051] Optionally, the display control method can be executed by the control device to control the display panel 10 to display.

[0052] It should be noted that the image data can characterize the display grayscale of each sub-pixel Spi within the display panel 10 corresponding to the image to be displayed.

[0053] Optionally, the control module 20 determines whether there is a large jump in the display grayscale of the image to be displayed based on the display grayscale of each sub-pixel Spi corresponding to the image to be displayed as represented by the image data, and then determines whether the image to be displayed contains display crosstalk problems based on the jump in the display grayscale.

[0054] In practical applications, when the display panel 10 displays a screen to be displayed, if among the multiple grayscale jump variables determined by the display grayscale of each sub-pixel Spi corresponding to the screen to be displayed, only one grayscale jump variable is large, that is, there is only one place in the display panel 10 where the voltage jump variable of the data signal corresponding to two adjacent sub-pixels Spi is large (e.g., ...). Figure 5 Taking sub-pixels Spia, Spib, Spic, and Spid electrically connected to the same data line DL as an example, when the display panel 10 displays the image to be displayed, sub-pixel Spia has a first display grayscale, and sub-pixel Spib has a second display grayscale. The first and second display grayscales have a significant difference in grayscale. Correspondingly, the voltage of the data signal received by sub-pixel Spia is the first voltage, and the voltage of the data signal received by sub-pixel Spib is the second voltage. Therefore, the voltage difference between the first and second voltages is large, and the voltage jump of the data signal is also large. Meanwhile, the grayscale difference between any two adjacent sub-pixels Spi along the extension direction of the data line DL is small. The grayscale difference between sub-pixel Spia and its adjacent sub-pixel Spic along the extension direction of the data line DL is also small, as is the grayscale difference between sub-pixel Spid and its adjacent sub-pixel Spid along the extension direction of the data line DL. That is, among the multiple grayscale jump variables corresponding to the image to be displayed, only the grayscale jump variables corresponding to sub-pixels Spia and Spib have larger values. Therefore, when the image to be displayed is displayed on the display panel 10, there will be no obvious display crosstalk problem.

[0055] Therefore, in order to save power consumption and cost, after determining that there are large grayscale jump variables in the screen to be displayed, the distribution range of the corresponding areas with large grayscale jump variables in the screen to be displayed can be further detected, thereby determining whether the screen to be displayed contains display crosstalk problems.

[0056] Accordingly, Figure 8 This is a flowchart of determining a crosstalk display area provided in an embodiment of the present invention. The step of determining whether the image to be displayed includes a crosstalk display area based on the image data includes:

[0057] Based on the image data, the display grayscale corresponding to multiple sub-pixels Spi in the display panel 10 is obtained to obtain multiple grayscale jump variables; wherein, each grayscale jump variable corresponds to the difference in display grayscale corresponding to two sub-pixels Spi that are electrically connected to the same data line DL and are adjacent along the extension direction of the data line DL.

[0058] Select the sub-pixel Spi corresponding to the grayscale jump variable that is greater than the preset jump variable as the predetermined sub-pixel Spit, and obtain the position information of each predetermined sub-pixel Spit within the display panel 10.

[0059] Based on the position information corresponding to each predetermined sub-pixel Spit, determine whether the number of predetermined sub-pixels Spit that are continuously distributed within the display panel 10 is greater than a preset number.

[0060] When the number of predetermined sub-pixels Spits that are continuously distributed within the display panel 10 is greater than the preset number, the area where the predetermined sub-pixels Spits are continuously distributed within the display panel 10 is correspondingly determined as the crosstalk display area.

[0061] Still with Figure 5 Taking sub-pixels Spia, Spib, Spic, and Spid, which are electrically connected to the same data line DL, as an example, the calculation method for obtaining multiple grayscale jump variables based on the display grayscale corresponding to multiple sub-pixels Spi is explained. When the display panel 10 displays the image to be displayed, sub-pixel Spia has a first display grayscale, sub-pixel Spib has a second display grayscale, sub-pixel Spic has a third display grayscale, and sub-pixel Spid has a fourth display grayscale. The difference between the first and second display grayscale corresponds to the grayscale jump variables of sub-pixels Spia and Spib, the difference between the third and first display grayscale corresponds to the grayscale jump variables of sub-pixels Spic and Spia, and the difference between the second and fourth display grayscale corresponds to the grayscale jump variables of sub-pixels Spib and Spid. Similarly, the grayscale jump variables corresponding to any two adjacent sub-pixels Spi along the extension direction of the data line DL can be obtained.

[0062] Optionally, the control device can be used to obtain the display grayscale corresponding to multiple sub-pixels Spi and multiple grayscale jump variables based on the image data.

[0063] Still with Figure 5 Taking sub-pixels Spia, Spib, Spic, and Spid, which are electrically connected to the same data line DL, as an example, the method for determining a predetermined sub-pixel Spit is illustrated. If the grayscale jump variable corresponding to sub-pixels Spia and Spib is greater than the preset jump variable, then sub-pixels Spia and Spib are determined as the predetermined sub-pixel Spit. If the grayscale jump variable corresponding to sub-pixels Spia and Spib is less than or equal to the preset jump variable, then sub-pixels Spia and Spib are not determined as the predetermined sub-pixel Spit.

[0064] Therefore, please continue reading. Figure 8 Before the step of selecting the sub-pixel Spi corresponding to the grayscale jump variable that is greater than the preset jump variable as the predetermined sub-pixel Spit, the method may further include:

[0065] Determine whether each grayscale jump variable is greater than the preset jump variable;

[0066] When the grayscale jump variable is greater than the preset jump variable, the sub-pixel Spi corresponding to the grayscale jump variable is selected as the predetermined sub-pixel Spi.

[0067] When the grayscale jump variable is less than or equal to the preset jump variable, the sub-pixel Spi corresponding to the grayscale jump variable is not selected as the predetermined sub-pixel Spit.

[0068] Generally, regions with large, continuous grayscale jumps, especially when the jump corresponds to a change from grayscale 64 to 255, are more prone to display crosstalk. Therefore, the preset jump variable can be greater than or equal to 191.

[0069] Due to factors such as manufacturing process, panel size, and device parameters, the grayscale jump variables that are more likely to cause display crosstalk problems also vary. For example, in some embodiments, there are areas with consecutive large grayscale jump variables, and when the grayscale jump variable corresponds to a jump from grayscale 48 to grayscale 255, display crosstalk problems are more likely to occur. Therefore, the corresponding preset jump variable can be set to a value greater than or equal to 207. Thus, the preset jump variable can be set to different values ​​depending on factors such as the type of display panel 10.

[0070] Once the predetermined sub-pixel Spit is determined, the distribution of the predetermined sub-pixel Spit can be determined based on the position information corresponding to the predetermined sub-pixel Spit, thereby determining whether the predetermined sub-pixel Spit is continuously distributed, and further determining whether the display screen to be displayed contains display crosstalk issues.

[0071] Optionally, the preset number is greater than 2.

[0072] Optionally, in some embodiments, multiple predetermined sub-pixels Spit are arranged in a continuous straight line within the display panel 10. When the display panel 10 displays a screen to be displayed, the first row of sub-pixels Spit to the p-th row of sub-pixels Spit displays a lower grayscale image, and the (p+1)-q-th row of sub-pixels Spit displays a higher grayscale image. The p-th row of sub-pixels Spit and the (p+1)-th row of sub-pixels Spit are adjacent, and the grayscale jump variables corresponding to the p-th row of sub-pixels Spit and the (p+1)-th row of sub-pixels Spit are all greater than a preset jump variable. Therefore, the multiple sub-pixels Spit in the p-th row and the multiple sub-pixels Spit in the (p+1)-th row correspond to multiple predetermined sub-pixels Spit, and the area where the p-th row of sub-pixels Spit and the (p+1)-th row of sub-pixels Spit are located is the crosstalk display area. Where p>1, q>p.

[0073] Optionally, in some embodiments, a plurality of predetermined sub-pixels Spits are distributed within a rectangular frame within the display panel 10. For example... Figure 7 As shown, display panel 10 displays a dialog box (corresponding to...). Figure 7 Area A in the middle and the background pattern (corresponding) Figure 7 When displaying the dialog box in region B), if the grayscale of the dialog box boundary differs significantly from that of the background pattern (e.g., region A displays grayscale 64, or L64, while region B displays grayscale 255, or L255), then the multiple sub-pixels Spi corresponding to the boundary between the background image and the dialog box boundary are multiple predetermined sub-pixels Spit. The area containing these multiple sub-pixels Spi at the boundary between the background image and the dialog box boundary is the crosstalk display area. It can also be understood that the display screen can correspond to the simultaneous display of different application interfaces, where the boundaries between different application interfaces have significant grayscale differences. The area containing the multiple sub-pixels Spi at the boundary of the corresponding application interface is the crosstalk display area.

[0074] When multiple predetermined sub-pixels Spit are continuously distributed within the display panel 10 to form a closed shape, the grayscale value jump variable corresponding to the multiple sub-pixels Spit located within the closed shape can be large or small.

[0075] Understandably, in some embodiments, multiple predetermined subpixels Spits are distributed within the display panel 10 in the form of polygonal frames or shapes, circular frames or shapes, etc.

[0076] Optionally, the preset number can be set according to actual needs. For example, if the screen to be displayed can be a screen displaying a dialog box and background pattern, a screen displaying different application interfaces simultaneously, or a screen where the upper and lower halves of the screen display a large difference in grayscale, then the preset number can be greater than or equal to 18.

[0077] Optionally, the preset number can be set based on the number of sub-pixels (Spi) in a row or column. For example, the preset number can be equal to z times the number of sub-pixels (Spi) corresponding to a row or column. Where 0... <z≤1。

[0078] Optionally, in some embodiments, the screen type of the screen to be displayed can be determined based on the content displayed corresponding to the screen to be displayed, thereby determining whether the screen to be displayed is a display screen containing display crosstalk problems.

[0079] Optionally, the control module 20 includes a timing controller to utilize a pattern detection module that implements a pattern detection function (PDF) to determine whether the screen to be displayed is a display screen containing display crosstalk problems.

[0080] Optionally, the control module 20 includes Extended Display Identification Data (EDID) to record the frequency values ​​of the first frequency and the second frequency. After the screen to be displayed is determined to contain display crosstalk problems, the second frequency is directly invoked so that the display panel 10 displays the first subframe and the second subframe according to the second frequency.

[0081] Optionally, the second frequency is equal to twice the first frequency, so that after the image to be displayed is determined to contain display crosstalk issues, the display panel 10 is controlled to display at a doubled frequency. For example, if the first frequency is 60Hz, the second frequency is 120Hz.

[0082] To ensure a continuous and complete display of the image in the first subframe and the image in the second subframe, the first subpixel Spi1 and the second subpixel Spi2 are interleaved, as follows: Figure 5 As shown.

[0083] Optionally, in order to make the display effect of the first sub-frame similar to that of the second sub-frame, the number of the plurality of first sub-pixels Spi1 is equal to the number of the plurality of second sub-pixels Spi2.

[0084] Please continue reading. Figure 5 The common voltage supply wire L1 in the display panel 10 can be connected to the detection point of the circuit board 30. The signal at the detection point can be connected to the control module 20 (such as the input / output port of the timing controller included in the control device) to realize the detection operation of the common voltage in the display panel 10, thereby obtaining the first coupling amount or the second coupling amount.

[0085] The first coupling amount can be greater than 0 or less than 0. When the first coupling amount is greater than 0, the proportion of the second sub-pixel Spi2 receiving the negative grayscale voltage can be increased when displaying the second sub-frame, so that the second coupling amount corresponding to the second sub-frame is smaller (e.g., the second coupling amount is controlled to be less than 0, and the sum of the second coupling amount and the first coupling amount tends to 0), thereby improving the display crosstalk problem. When the first coupling amount is less than 0, the proportion of the second sub-pixel Spi2 receiving the negative grayscale voltage can be reduced when displaying the second sub-frame, so that the second coupling amount corresponding to the second sub-frame is larger (e.g., the second coupling amount is controlled to be greater than 0, and the sum of the second coupling amount and the first coupling amount tends to 0), thereby improving the display crosstalk problem.

[0086] Understandably, if the proportion of the second sub-pixel Spi2 receiving the negative grayscale voltage increases or decreases, the proportion of the second sub-pixel Spi2 receiving the positive grayscale voltage will decrease or increase simultaneously.

[0087] Accordingly, please continue reading Figure 6B The step of adjusting the ratio of the second sub-pixels Spi2 receiving positive grayscale voltage and the second sub-pixels Spi2 receiving negative grayscale voltage among the plurality of second sub-pixels Spi2 corresponding to receiving the second sub-frame display data according to the first coupling amount includes:

[0088] Determine whether the first coupling quantity is greater than 0;

[0089] When the first coupling amount is greater than 0, the proportion of the second sub-pixel Spi2 that receives the negative polarity gray level voltage is increased, and the proportion of the second sub-pixel Spi2 that receives the positive polarity gray level voltage is decreased.

[0090] When the first coupling amount is less than 0, the proportion of the second sub-pixel Spi2 receiving the positive grayscale voltage is increased, and the proportion of the second sub-pixel Spi2 receiving the negative grayscale voltage is decreased.

[0091] Specifically, when the first coupling amount is equal to 0, the proportion of the second sub-pixel Spi2 receiving the negative polarity grayscale voltage and the proportion of the second sub-pixel Spi2 receiving the positive polarity grayscale voltage remain unchanged. That is, the polarity of the grayscale voltage corresponding to the second sub-frame display data does not need to be adjusted.

[0092] Optionally, the relationship between coupling amount and grayscale voltage polarity adjustment can be pre-stored during the debugging phase. In subsequent use, the grayscale voltage polarity ratio information corresponding to the second coupling amount can be obtained based on the stored relationship between coupling amount and grayscale voltage polarity adjustment, so as to neutralize the first coupling amount using the second coupling amount.

[0093] Accordingly, please continue reading Figure 6C The step of controlling the proportion of the second sub-pixel Spi2 receiving the negative grayscale voltage to increase and the proportion of the second sub-pixel Spi2 receiving the positive grayscale voltage to decrease when the first coupling amount is greater than 0 includes:

[0094] When the first coupling amount is greater than 0, according to the relationship between the coupling amount and the grayscale voltage polarity adjustment, the number of second sub-pixels Spi2 receiving the negative polarity grayscale voltage is increased by X, and the number of second sub-pixels Spi2 receiving the positive polarity grayscale voltage is decreased by X; where X is greater than or equal to 1.

[0095] The steps of controlling the proportion of the second sub-pixel Spi2 receiving the positive grayscale voltage to increase and the proportion of the second sub-pixel Spi2 receiving the negative grayscale voltage to decrease when the first coupling amount is less than 0 include:

[0096] When the first coupling amount is less than 0, according to the relationship between the coupling amount and the grayscale voltage polarity adjustment, the number of the second sub-pixel Spi2 receiving the positive polarity grayscale voltage is increased by Y, and the number of the second sub-pixel Spi2 receiving the negative polarity grayscale voltage is decreased by Y; wherein, Y is greater than or equal to 1.

[0097] Since crosstalk occurs in areas with large grayscale jumps, when adjusting the grayscale voltage polarity of the sub-pixel Spi, the crosstalk display area corresponding to the sub-pixel Spi receiving the grayscale voltage of the adjusted polarity can be set to adjust the coupling amount at the crosstalk display area corresponding to the common voltage in the second sub-frame, thereby improving the display crosstalk problem.

[0098] Accordingly, in the steps of increasing the number of second sub-pixels Spi2 receiving the negative grayscale voltage by X and decreasing the number of sub-pixels Spi2 receiving the positive grayscale voltage by X, and in the steps of increasing the number of second sub-pixels Spi2 receiving the positive grayscale voltage by Y and decreasing the number of second sub-pixels Spi2 receiving the negative grayscale voltage by Y, the second sub-pixels Spi2 receiving the grayscale voltage of the adjusted polarity are uniformly distributed around the crosstalk display area.

[0099] Optionally, the coupling amount at the crosstalk display area corresponding to the common voltage in the second subframe can be adjusted by adjusting the polarity of the grayscale voltage received by the predetermined sub-pixel Spit, thereby improving the display crosstalk problem.

[0100] Optionally, during the debugging phase, a preset screen containing crosstalk display issues can be used for debugging to obtain the relationship between coupling amount and grayscale voltage polarity adjustment.

[0101] Accordingly, Figure 9 This is a flowchart of determining the relationship between coupling amount and grayscale voltage polarity adjustment provided in an embodiment of the present invention. Before the step of adjusting the proportion of second sub-pixels Spi2 receiving positive grayscale voltage and second sub-pixels Spi2 receiving negative grayscale voltage among the plurality of second sub-pixels Spi2 corresponding to receiving the second sub-frame display data according to the first coupling amount, the flowchart includes:

[0102] The preset image data corresponding to the preset screen containing the preset crosstalk display area is converted into the first subframe pre-display data and the second subframe pre-display data.

[0103] The refresh rate of the display panel 10 is controlled to be changed from the first frequency to the second frequency, and multiple first sub-pixels Spi1 are controlled to display according to the first sub-frame pre-display data, and the first pre-coupling amount corresponding to the common voltage in the display panel 10 is detected.

[0104] Determine whether the first pre-coupling quantity is greater than 0;

[0105] When the first pre-coupling amount is greater than 0, the number of second sub-pixels Spi2 receiving the negative grayscale voltage among the multiple second sub-pixels Spi2 receiving the second sub-frame pre-display data is increased by M, and the number of second sub-pixels Spi2 receiving the positive grayscale voltage is decreased by M. The multiple second sub-pixels Spi2 are then controlled to display. The second pre-coupling amount corresponding to the common voltage within the display panel 10 is detected. When the sum of the second pre-coupling amount and the first pre-coupling amount is not equal to 0, the number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage among the multiple second sub-pixels Spi2 are readjusted. This continues until the sum of the second pre-coupling amount and the first pre-coupling amount equals 0. The corresponding number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage are recorded to obtain the relationship between the coupling amount and the grayscale voltage polarity adjustment.

[0106] When the first pre-coupling amount is less than 0, the number of second sub-pixels Spi2 receiving the negative grayscale voltage among the plurality of second sub-pixels Spi2 receiving the second sub-frame pre-display data is reduced by M, and the number of second sub-pixels Spi2 receiving the positive grayscale voltage is increased by M. The plurality of second sub-pixels Spi2 are then controlled to display. The second pre-coupling amount corresponding to the common voltage within the display panel 10 is detected. When the sum of the second pre-coupling amount and the first pre-coupling amount is not equal to 0, the number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage among the plurality of second sub-pixels Spi2 are readjusted. This continues until the sum of the second pre-coupling amount and the first pre-coupling amount equals 0. The corresponding number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage are recorded to obtain the relationship between the coupling amount and the grayscale voltage polarity adjustment. Where M is greater than or equal to 1.

[0107] When the first pre-coupling amount is +0.1V, the number of second sub-pixels Spi2 receiving the negative grayscale voltage among the plurality of second sub-pixels Spi2 receiving the second sub-frame pre-display data is increased by 0.1 times the number of second sub-pixels Spi2, and the number of second sub-pixels Spi2 receiving the positive grayscale voltage is decreased by 0.1 times the number of second sub-pixels Spi2. The plurality of second sub-pixels Spi2 are then controlled to display, and the second pre-coupling amount corresponding to the common voltage within the display panel 10 is detected. If the sum of the detected second coupling amount and the first pre-coupling amount is not equal to 0, the number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage among the plurality of second sub-pixels Spi2 are readjusted. If the sum of the detected second coupling amount and the first pre-coupling amount equals +0.05V, then among the multiple second sub-pixels Spi2 receiving the second sub-frame pre-display data, the number of second sub-pixels Spi2 receiving the negative grayscale voltage is increased by 0.1 times the number of multiple second sub-pixels Spi2, and the number of second sub-pixels Spi2 receiving the positive grayscale voltage is decreased by 0.1 times the number of multiple second sub-pixels Spi2. The second coupling amount is detected again. If the sum of the detected second coupling amount and the first pre-coupling amount is not equal to 0, the number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage are readjusted again until the sum of the second pre-coupling amount and the first pre-coupling amount equals 0. The corresponding number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage are recorded to obtain the relationship between the coupling amount and the grayscale voltage polarity adjustment.

[0108] It is understandable that, in each readjustment of multiple second sub-pixels Spi2, the number of second sub-pixels Spi2 receiving the negative grayscale voltage and the number of second sub-pixels Spi2 receiving the positive grayscale voltage may not be fixed at M.

[0109] The control module 20 is configured to control the display panel 10 to display according to any of the above-described display control methods.

[0110] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A display control method for a display device, characterized in that, include: Acquire image data of the screen to be displayed on the display panel, and determine whether the screen to be displayed includes a crosstalk display area based on the image data; When the screen to be displayed includes the crosstalk display area, the image data corresponding to the screen to be displayed is converted into first subframe display data and second subframe display data; The refresh rate of the display panel is controlled to be switched from a first frequency to a second frequency, and multiple first sub-pixels are controlled to display the first sub-frame according to the first sub-frame display data, and a first coupling amount corresponding to the common voltage in the display panel is detected; wherein, the second frequency is greater than the first frequency; Based on the first coupling amount, the proportion of the second sub-pixels receiving positive grayscale voltage and the second sub-pixels receiving negative grayscale voltage among the multiple second sub-pixels corresponding to receiving the second sub-frame display data is adjusted, and the multiple second sub-pixels are controlled to display the second sub-frame, so as to utilize the common voltage corresponding to the second coupling amount in the second sub-frame and the first coupling amount; wherein, the display panel includes multiple first sub-pixels and multiple second sub-pixels, and the first sub-pixels and second sub-pixels are cross-distributed.

2. The display control method according to claim 1, characterized in that, The step of adjusting the proportion of second sub-pixels receiving positive grayscale voltage and second sub-pixels receiving negative grayscale voltage among a plurality of second sub-pixels corresponding to receiving the second sub-frame display data according to the first coupling amount includes: Determine whether the first coupling quantity is greater than 0; When the first coupling amount is greater than 0, the proportion of the second sub-pixel receiving the negative polarity grayscale voltage is increased, and the proportion of the second sub-pixel receiving the positive polarity grayscale voltage is decreased. When the first coupling amount is less than 0, the proportion of the second sub-pixel receiving the positive grayscale voltage is increased, and the proportion of the second sub-pixel receiving the negative grayscale voltage is decreased.

3. The display control method according to claim 2, characterized in that, The step of controlling the proportion of the second sub-pixel receiving the negative grayscale voltage to increase and the proportion of the second sub-pixel receiving the positive grayscale voltage to decrease when the first coupling amount is greater than 0 includes: when the first coupling amount is greater than 0, controlling the number of the second sub-pixels receiving the negative grayscale voltage to increase by X and the number of the second sub-pixels receiving the positive grayscale voltage to decrease by X according to the relationship between coupling amount and grayscale voltage polarity adjustment; wherein X is greater than or equal to 1; The step of controlling the proportion of the second sub-pixel receiving the positive grayscale voltage to increase and the proportion of the second sub-pixel receiving the negative grayscale voltage to decrease when the first coupling amount is less than 0 includes: when the first coupling amount is less than 0, controlling the number of the second sub-pixels receiving the positive grayscale voltage to increase by Y and the number of the second sub-pixels receiving the negative grayscale voltage to decrease by Y according to the relationship between the coupling amount and the grayscale voltage polarity adjustment; wherein Y is greater than or equal to 1.

4. The display control method according to claim 3, characterized in that, In the steps of increasing the number of second sub-pixels receiving the negative grayscale voltage by X and decreasing the number of sub-pixels receiving the positive grayscale voltage by X, and in the steps of increasing the number of second sub-pixels receiving the positive grayscale voltage by Y and decreasing the number of second sub-pixels receiving the negative grayscale voltage by Y, the second sub-pixels corresponding to receiving the grayscale voltage with adjusted polarity are evenly distributed around the crosstalk display area.

5. The display control method according to claim 3, characterized in that, Before the step of adjusting the proportion of second sub-pixels receiving positive grayscale voltage and second sub-pixels receiving negative grayscale voltage among a plurality of second sub-pixels corresponding to receiving the second sub-frame display data according to the first coupling amount, the method includes: The preset image data corresponding to the preset screen containing the preset crosstalk display area is converted into the first subframe pre-display data and the second subframe pre-display data. The refresh rate of the display panel is controlled to be changed from the first frequency to the second frequency, and multiple first sub-pixels are controlled to display according to the first sub-frame pre-display data, and the first pre-coupling amount corresponding to the common voltage in the display panel is detected; Determine whether the first pre-coupling quantity is greater than 0; When the first pre-coupling amount is greater than 0, the number of second sub-pixels receiving the negative grayscale voltage among the multiple second sub-pixels receiving the second sub-frame pre-display data is increased by M, and the number of second sub-pixels receiving the positive grayscale voltage is decreased by M. The multiple second sub-pixels are then controlled to display. The second pre-coupling amount corresponding to the common voltage within the display panel is detected. When the sum of the second pre-coupling amount and the first pre-coupling amount is not equal to 0, the number of second sub-pixels receiving the negative grayscale voltage and the number of second sub-pixels receiving the positive grayscale voltage among the multiple second sub-pixels are readjusted. This continues until the sum of the second pre-coupling amount and the first pre-coupling amount equals 0. The corresponding number of second sub-pixels receiving the negative grayscale voltage and the number of second sub-pixels receiving the positive grayscale voltage are recorded to obtain the relationship between the coupling amount and the grayscale voltage polarity adjustment. When the first pre-coupling amount is less than 0, the number of second sub-pixels receiving the negative grayscale voltage among the multiple second sub-pixels receiving the second sub-frame pre-display data is reduced by M, and the number of second sub-pixels receiving the positive grayscale voltage is increased by M. The multiple second sub-pixels are then controlled to display. The second pre-coupling amount corresponding to the common voltage within the display panel is detected. When the sum of the second pre-coupling amount and the first pre-coupling amount is not equal to 0, the number of second sub-pixels receiving the negative grayscale voltage and the number of second sub-pixels receiving the positive grayscale voltage among the multiple second sub-pixels are readjusted. This continues until the sum of the second pre-coupling amount and the first pre-coupling amount equals 0. The corresponding number of second sub-pixels receiving the negative grayscale voltage and the number of second sub-pixels receiving the positive grayscale voltage are recorded to obtain the relationship between the coupling amount and the grayscale voltage polarity adjustment. Where M is greater than or equal to 1.

6. The display control method according to claim 1, characterized in that, The second frequency is equal to twice the first frequency.

7. The display control method according to claim 1, characterized in that, The number of the plurality of first sub-pixels is equal to the number of the plurality of second sub-pixels.

8. The display control method according to claim 1, characterized in that, The step of determining whether the image to be displayed includes a crosstalk display area based on the image data includes: The display grayscale corresponding to multiple sub-pixels in the display panel is obtained based on the image data to obtain multiple grayscale jump variables; wherein, each grayscale jump variable corresponds to the difference in display grayscale corresponding to two sub-pixels that are electrically connected to the same data line and are adjacent along the extension direction of the data line; Select the sub-pixel corresponding to the grayscale jump variable that is greater than the preset jump variable as a predetermined sub-pixel, and obtain the position information of each predetermined sub-pixel in the display panel; Based on the position information corresponding to each predetermined sub-pixel, determine whether the number of predetermined sub-pixels that are continuously distributed in the display panel is greater than a preset number; When the number of predetermined sub-pixels that are continuously distributed within the display panel is greater than the preset number, the area where the predetermined sub-pixels that are continuously distributed within the display panel are located is determined as the crosstalk display area.

9. The display control method according to claim 8, characterized in that, The preset jump variable is greater than or equal to 191.

10. A display device, characterized in that, include: The display panel includes a plurality of first sub-pixels and a plurality of second sub-pixels; The control module, electrically connected to the display panel, is configured to execute the display control method as described in any one of claims 1 to 9 to control the display panel to display.

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