WO2022033110A1

WO2022033110A1 - Liquid crystal display and driving compensation method therefor and driving compensation apparatus thereof

Info

Publication number: WO2022033110A1
Application number: PCT/CN2021/095483
Authority: WO
Inventors: 韩启强; 赵博; 洪星智; 李永超
Original assignee: 合肥奕斯伟集成电路有限公司
Priority date: 2020-08-09
Filing date: 2021-05-24
Publication date: 2022-02-17
Also published as: CN111816136A; CN114333725B; CN111816136B; CN114333725A

Abstract

The present disclosure provides a liquid crystal display, a driving compensation method therefor, and a driving compensation apparatus thereof. The driving compensation method of the liquid crystal display comprises: obtaining image data corresponding to each image frame that the liquid crystal display will display; according to the image data of the current image frame that will be displayed by the liquid crystal display and to the image data of the previous image frame, determining first image compensation data corresponding to the current image frame; on the basis of the first image compensation data, generating a data signal used for writing into each subpixel comprised in the liquid crystal display.

Description

Liquid crystal display, driving compensation method and driving compensation device thereof

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202010792636.X filed in China on Aug. 9, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present disclosure relates to the technical field of liquid crystal display driving, and in particular, to a liquid crystal display, a driving compensation method thereof, and a driving compensation device.

Background technique

The display principle of the liquid crystal display is based on driving the inversion of the liquid crystal with different voltages to achieve different amounts of light transmission.

Due to the viscosity and elasticity of the liquid crystal itself, the time for the liquid crystal to flip from one state to another state is not instantaneous, that is, when the liquid crystal flips from the previous state to the current target state, even if the corresponding voltage has been applied, the liquid crystal After a period of time, the optical response can reach the ideal target state, and this time is the response time. If the response time exceeds the time of one frame (for example, at 60Hz, the time of one frame is 16.6ms), the picture will be blurred.

Therefore, how to shorten the response time of the liquid crystal in the liquid crystal display has become an urgent problem to be solved.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide a liquid crystal display, a driving compensation method and a driving compensation device, which are used to solve the problem that the response time of the liquid crystal in the liquid crystal display is long, which affects the display quality of the liquid crystal display.

In order to achieve the above object, the present disclosure provides the following technical solutions:

A first aspect of the present disclosure provides a driving compensation method for a liquid crystal display, including:

acquiring image data corresponding to each frame image to be displayed by the liquid crystal display;

Determine the first image compensation data corresponding to the current frame image according to the image data of the current frame image to be displayed by the liquid crystal display and the image data of the previous frame image;

A data signal for writing into each sub-pixel included in the liquid crystal display is generated based on the first image compensation data.

Optionally, the step of acquiring image data corresponding to each frame of images to be displayed by the liquid crystal display specifically includes:

Receive image data corresponding to each frame of images in sequence, compress and save the image data corresponding to each frame of image, and transmit to the response time compensation module;

The response time compensation module receives the image data corresponding to the current frame image and the image data corresponding to the previous frame image obtained by decompression.

Optionally, the image data corresponding to each frame image includes initial grayscale data corresponding to each sub-pixel one-to-one;

According to the image data of the current frame image and the image data of the previous frame image to be displayed by the liquid crystal display, the step of determining the first image compensation data corresponding to the current frame image specifically includes:

According to the initial grayscale data of the current frame image corresponding to each subpixel and the initial grayscale data of the previous frame image corresponding to each subpixel, obtain the current frame image corresponding to each subpixel from the pre-generated first compensation data table the first gray-scale compensation data, generating first image compensation data corresponding to the current frame image according to the first gray-scale compensation data corresponding to each sub-pixel;

The abscissa of the index value of the first compensation data table includes the initial grayscale data of the previous frame image corresponding to the sub-pixel, and the ordinate of the index value of the first compensation data table includes the current frame image corresponding to the sub-pixel. Initial grayscale data, the first compensation data table stores first grayscale compensation data corresponding to index values one-to-one.

Optionally, the liquid crystal display includes grid lines and data lines arranged crosswise, and a plurality of sub-pixels distributed in an array, the plurality of sub-pixels include a plurality of columns of sub-pixels corresponding to the data lines one-to-one, and the sub-pixels in each column of Each sub-pixel is electrically connected to the corresponding data line;

The step of generating a data signal for writing into each sub-pixel included in the liquid crystal display based on the first image compensation data includes:

acquiring the first gray-scale compensation data corresponding to all adjacent two sub-pixels in the same column of sub-pixels;

According to the first gray-scale compensation data corresponding to all the adjacent two sub-pixels, and from the pre-generated second compensation data table, obtain each adjacent two sub-pixels that are far away from the starting end of the data line The first target subpixel corresponds to the second grayscale compensation data of the current frame image; the abscissa of the index value of the second compensation data table includes the first target subpixel that is not corresponding to the first target subpixel in the adjacent two subpixels. Grayscale compensation data, the ordinate of the index value of the second compensation data table includes the first grayscale compensation data corresponding to the first target subpixel in the two adjacent subpixels, and the second compensation data table The second grayscale compensation data corresponding to the index value one-to-one is stored in the ;

Based on the second grayscale compensation data corresponding to each of the first target sub-pixels, a data signal for writing into each of the first target sub-pixels is generated.

Optionally, the plurality of sub-pixels include a plurality of rows of sub-pixels corresponding to the gate lines one-to-one, and each sub-pixel in each row of the sub-pixels is electrically connected to the corresponding gate line respectively;

The step of generating a data signal for writing into each sub-pixel included in the liquid crystal display based on the first image compensation data specifically includes:

obtaining position data corresponding to the second target sub-pixel in the plurality of sub-pixels;

According to the position data corresponding to the second target sub-pixel, the compensation parameter corresponding to the second target sub-pixel is obtained from the pre-generated third compensation data table; the abscissa of the index value of the third compensation data table Including the abscissa of the second target sub-pixel, the ordinate of the index value of the third compensation data table includes the ordinate of the second target sub-pixel, and the third compensation data table is stored with the index. Compensation parameters corresponding to one-to-one value;

Obtain second grayscale compensation data corresponding to the second target sub-pixel from the second compensation data table;

Based on the first grayscale compensation data, the second grayscale compensation data and the compensation parameters corresponding to each of the second target subpixels, a data signal for writing into the second target subpixel is generated.

Based on the technical solution of the above driving compensation method, a second aspect of the present disclosure provides a driving compensation device for a liquid crystal display for implementing the above driving compensation method, the driving compensation device comprising: an acquisition module, a response time compensation module and a driving module ;

The acquiring module is used for: acquiring image data corresponding to each frame of images to be displayed by the liquid crystal display;

The response time compensation module is used to: determine the first image compensation data corresponding to the current frame image according to the image data of the current frame image to be displayed by the liquid crystal display and the image data of the previous frame image;

The driving module is configured to: generate a data signal for writing into each sub-pixel included in the liquid crystal display based on the first image compensation data.

Optionally, the obtaining module specifically includes: a receiving module, a compression module, a storage module and a decompression module;

The receiving module is used to sequentially receive image data corresponding to each frame of image, and transmit the image data corresponding to each frame of image to the compression module and the response time compensation module respectively;

The compression module is used to compress the image data corresponding to each frame of image and save it in the storage module;

The decompression module is configured to decompress the image data corresponding to the previous frame of image from the storage module, and transmit it to the response time compensation module.

The response time compensation module is specifically used for:

Optionally, the liquid crystal display includes grid lines and data lines arranged crosswise, and a plurality of sub-pixels distributed in an array, the plurality of sub-pixels include a plurality of columns of sub-pixels corresponding to the data lines one-to-one, and the sub-pixels in each column of Each sub-pixel is electrically connected to the corresponding data line; the drive compensation device further includes: an under-charge compensation module;

The under-charge compensation module is used for: acquiring the first gray-scale compensation data corresponding to all adjacent two sub-pixels in the same column of sub-pixels;

The driving module is specifically configured to: generate a data signal for writing into each of the first target sub-pixels based on the second gray-scale compensation data corresponding to each of the first target sub-pixels.

The under-charge compensation module is further configured to: acquire position data corresponding to the second target sub-pixel in the plurality of sub-pixels;

The driving module is specifically configured to: based on the first grayscale compensation data, the second grayscale compensation data and the compensation parameter corresponding to the second target subpixel, generate a data for writing to the second target subpixel data signal in .

Based on the technical solution of the driving compensation device, a third aspect of the present disclosure provides a liquid crystal display including the above driving compensation device.

In the technical solution provided by the present disclosure, it is possible to determine, according to the image data of the image of the previous frame and the image data of the image of the current frame, the corresponding degree of inversion of the liquid crystal when the liquid crystal display is switched from the image of the previous frame to the image of the current frame; The degree of inversion performs adaptive compensation on the image data corresponding to the current frame image; so that after the data signal generated based on the first image compensation data is written into each sub-pixel, the response speed of the liquid crystal can be effectively improved and the response time of the liquid crystal can be shortened. It avoids the phenomenon of blurring when the liquid crystal display screen is displayed.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the attached image:

FIG. 1 is a schematic structural diagram of a liquid crystal display according to an embodiment of the present disclosure;

2 is a schematic diagram of a first layout of sub-pixels in a display panel according to an embodiment of the present disclosure;

3 is a schematic diagram of a second layout of sub-pixels in a display panel according to an embodiment of the present disclosure;

4 is a schematic diagram of a third layout of sub-pixels in a display panel according to an embodiment of the present disclosure;

5 is a schematic diagram of a fourth layout of sub-pixels in a display panel according to an embodiment of the present disclosure;

6 is a schematic diagram of an image data curve and a liquid crystal response curve before compensation and after compensation provided by an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of modules in a drive compensation device provided by an embodiment of the present disclosure;

8 is a schematic diagram of image data corresponding to a current frame image and a previous frame image provided by an embodiment of the present disclosure;

9 is a schematic diagram of a first compensation data table provided by an embodiment of the present disclosure;

10 is a schematic diagram of adjacent sub-pixels along an extension direction of a data line according to an embodiment of the present disclosure;

11 is a schematic diagram of a second compensation data table provided by an embodiment of the present disclosure;

12 is a schematic diagram of a row of sub-pixels corresponding to one gate driving module according to an embodiment of the present disclosure;

13 is a schematic diagram of a row of sub-pixels corresponding to two gate driving modules according to an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of a charging curve corresponding to the structures shown in FIGS. 12 and 13 according to an embodiment of the present disclosure;

15 is a schematic structural diagram of a third compensation data table;

16 is a schematic diagram of bilinear difference upsampling performed on the third compensation data table;

FIG. 17 is a schematic diagram of triangular difference upsampling performed on the third compensation data table.

detailed description

In order to further illustrate the liquid crystal display, the driving compensation method, and the driving compensation device provided by the embodiments of the present disclosure, the following detailed description is given with reference to the accompanying drawings.

Embodiments of the present disclosure provide a driving compensation method for a liquid crystal display, including:

Determine the first image compensation data corresponding to the current frame image according to the image data of the current frame image and the image data of the previous frame image to be displayed by the liquid crystal display;

Specifically, please refer to FIG. 1, which shows the structure diagram of the entire liquid crystal display. After decoding, the image data (Video Stream) is input to the timing control chip 1 (T-CON), and the timing control chip 1 passes through a certain amount of data. Process, generate the data required by the gate driver chip 2 (Gate Driver IC) or Gate On Array, and generate the data required by the source driver chip 3 (Source Driver IC), and transfer the processed image data to the Gate driver chip 2 (or Gate On Array, GOA for short) and source driver chip 3. The gate driver chip 2 (or Gate On Array, GOA for short) can generate switching signals according to the received image data, and transmit them to the gate lines in the display panel 4. The source driver chip 3 can generate a voltage signal (ie, a data signal) according to the received image data, and transmit it to the data lines in the display panel 4 .

Exemplarily, when the gate driving chip 2 is included in the liquid crystal display panel, the layout position of the gate driving chip 2 may be located at the positions indicated by

marks

5 and 6 . The gate driver chip 2 or GOA can be optionally set in the liquid crystal display panel. The source driver chip 3 can be arranged on the upper side or the lower side of the display panel 4 as shown in FIG. 1 according to actual needs.

Please refer to FIG. 2 . FIG. 2 shows a schematic layout of gate lines (eg, Gate1 to Gate6 ), data lines (Source1 to Source10 ), and sub-pixels (eg, mark 402 ) inside the display panel 4 . The display panel 4 includes a plurality of sub-pixels distributed in an array. Exemplarily, the number of sub-pixels of a typical full high-definition (FHD) liquid crystal display is 1920*1080*3 or 1920*1080*4, and an ultra-high-definition (UHD) liquid crystal display The number of sub-pixels is 3840*2160*3 or 3840*2160*4.

Exemplarily, the liquid crystal display includes a plurality of gate driving chips 2, and each gate driving chip 2 corresponds to a part of the gate lines electrically connected, and is used to generate switching signals in a certain timing sequence and transmit them to the correspondingly connected gate lines, so as to control the corresponding gate lines of the gate lines. The on and off of each row of connected sub-pixels.

The grid lines in the display panel 4 are scanned line by line, and the data lines write data signals into each row of sub-pixels line by line, and control the liquid crystal of each sub-pixel to deflect to a certain extent, so as to control the backlight to pass through the liquid crystal with a certain luminous flux, and pass through the liquid crystal with a certain luminous flux. After color filtering, the display panel 4 is emitted, so that the display panel 4 finally presents different color levels.

It is worth noting that the layout of the sub-pixels in the display panel 4 and the connection relationship between the sub-pixels and the gate lines and the data lines are various. The blue sub-pixel B; the specific arrangement of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B, and the connection relationship between each sub-pixel and the gate line and the data line include as shown in Fig. 3 and Fig. 4 and Figure 5 show the specific way.

When the liquid crystal display implements the display function, it will display multiple frames of images in sequence, and when the image data corresponding to each frame of images is different, the corresponding inversion states of the control liquid crystal are different.

Image data corresponding to each frame of images to be displayed by the liquid crystal display is sequentially acquired, and based on the image data corresponding to each frame of image, the inversion state of the liquid crystal when each frame of image is displayed can be determined.

In more detail, according to the image data of the current frame image and the image data of the previous frame image to be displayed by the liquid crystal display, the first inversion state of the liquid crystal when the liquid crystal display is displaying the previous frame image can be determined, and When the liquid crystal display displays the current frame image, the liquid crystal is in the second inversion state, and according to the first inversion state and the second inversion state, it can be determined when the liquid crystal display switches from the first frame image to the second frame image , the degree of inversion of the liquid crystal. According to the inversion degree, the image data corresponding to the current frame image is compensated to obtain the first image compensation data corresponding to the current frame image.

As shown in Figure 6, the abscissa represents time, the ordinate represents the drive level (Drive Level), 1003 is the change curve of the original image data corresponding to the sub-pixel before compensation when the current frame image is displayed, and 1001 is the current frame displayed by the liquid crystal display before compensation Image, the corresponding optical response curve of the liquid crystal. 1004 is the change curve of the first image compensation data corresponding to the positive compensation when the sub-pixel after compensation displays the current frame image, 1005 is the compensation data of the first image corresponding to the negative compensation when the sub-pixel after compensation displays the current frame image The change curve of 1002 is the optical response curve of the corresponding liquid crystal when the liquid crystal display displays the current frame image after compensation.

It can be seen from FIG. 6 that when the driving compensation method provided by the embodiment of the present disclosure is used to perform driving compensation on the liquid crystal display, during the time from t1 to t2, the voltage value of the forwardly compensated data signal received by the sub-pixel is higher than that of the compensation The voltage value of the previous data signal, so that the optical response of the liquid crystal is accelerated (see 1002), and the liquid crystal display can reach the target brightness in a relatively short time. During the time from t3 to t4, the voltage value of the negatively compensated data signal received by the sub-pixel is lower than the voltage value of the data signal before compensation, thereby accelerating the optical response of the liquid crystal and entering the next inversion state faster. .

Therefore, when the liquid crystal display is driven to display by the driving compensation method provided by the embodiment of the present disclosure, it can be determined according to the image data of the previous frame image and the image data of the current frame image when the liquid crystal display switches from the previous frame image to the current frame image , the degree of inversion corresponding to the liquid crystal; and adaptively compensate the image data corresponding to the current frame image according to the degree of inversion; so that after the data signal generated based on the first image compensation data is written into each sub-pixel, the liquid crystal can be effectively improved. The response speed of the liquid crystal display is shortened, and the response time of the liquid crystal display is shortened, and the blurring phenomenon of the liquid crystal display when the screen is displayed is avoided.

In some embodiments, the step of acquiring image data corresponding to each frame of images to be displayed by the liquid crystal display specifically includes:

Specifically, as shown in FIG. 7 , the receiving module 101 sequentially receives image data corresponding to each frame of images sent from the front end. When receiving the image data corresponding to the first frame of image, the receiving module 101 transmits the image data corresponding to the first frame of image to the compression module 102, and the compression module 102 compresses the image data corresponding to the first frame of image and transmits it to the storage module 104 for storage.

Starting from the second frame of image, when receiving the image data corresponding to each frame of image, the receiving module 101 transmits the image data corresponding to each frame of image to the compression module 102, and the compression module 102 compresses the image data corresponding to each frame of image. After compression, it is transmitted to the storage module 104 for storage; at the same time, the receiving module 101 transmits the image data corresponding to each frame of image to the response time compensation module 105 .

Starting from the second frame image, when the response time compensation module 105 receives the image data corresponding to the current frame image, the decompression module 103 can decompress and obtain the image data corresponding to the previous frame image from the storage module 104, and decompress the previous frame image. The image data corresponding to the image is transmitted to the response time compensation module 105 . The response time compensation module 105 determines the first image compensation data corresponding to the current frame image according to the image data of the current frame image and the image data of the previous frame image to be displayed by the liquid crystal display.

It should be noted that the receiving module 101 , the compression module 102 , the decompression module 103 , the storage module 104 and the response time compensation module 105 may be part of the timing control chip 1 .

In the driving compensation method provided by the above embodiment, the response time compensation module 105 obtains the image data of the previous frame of image through the compression and decompression process, which effectively improves the acquisition speed of the image data of the previous frame of image, thereby effectively improving the liquid crystal display. The drive compensation speed of the display.

In some embodiments, the image data corresponding to each frame of image includes initial grayscale data corresponding to each sub-pixel one-to-one;

The abscissa of the index value of the first compensation data table includes the initial grayscale data of the previous frame image corresponding to the sub-pixel, and the ordinate of the index value of the first compensation data table includes the current frame image corresponding to the sub-pixel. Initial grayscale data, the first compensation data table stores the first grayscale compensation data of the current frame image corresponding to the index values one-to-one.

Specifically, as shown in FIG. 8, 501 represents the image data of the previous frame image, that is, the image data decompressed by the

decompression module

103, and 502 represents the image data of the current frame image, that is, it is directly transmitted by the receiving module 101 to the response time compensation Image data for module 105. Exemplarily, FIG. 8 shows the same sub-pixel in the display panel, the corresponding initial grayscale data 601 of the previous frame image, and the corresponding initial grayscale data 602 of the current frame image. When the initial grayscale data 602 is compensated, correction and compensation are performed with reference to the initial grayscale data 601 of the previous frame image.

FIG. 9 illustrates an N*M first compensation data table. Exemplarily, the abscissa of the index value of the first compensation data table includes the initial grayscale data (eg, G1~ GN), the ordinate of the index value of the first compensation data table includes the initial grayscale data (such as T1-TM) of the current frame image corresponding to the sub-pixel, and the first compensation data table stores a value equal to the index value. A corresponding first grayscale compensation data L of the current frame image. It is worth noting that the first gray-scale compensation data L can be the final compensated data, that is, it is not necessary to perform other operations on the first gray-scale compensation data L, and the data signal can be obtained directly based on the first gray-scale compensation data L. . Alternatively, the first grayscale compensation data L may be a difference value that needs to be compensated, that is, the difference value and the initial grayscale data of the current frame image need to be added to obtain final compensated data, and then based on the final compensation value data to get the data signal.

In more detail, taking position 701 in the first compensation data table as an example, G3 in L(G3, T4) at this position 701 represents the initial grayscale data of the previous frame image corresponding to the sub-pixel, for example: G3 takes The value is 50; T4 represents the initial grayscale data of the current frame image corresponding to the sub-pixel, for example: T4 is 80; L represents the first grayscale compensation data of the current frame, for example: L is 90; in this case, L is the final compensated data.

In another way, for example: G3 is 50; T4 is 80; L is 10; in this case, L is a difference that needs to be compensated, that is, the difference needs to be The gray-scale data is added, that is, 10+80, and the final compensated data 90 is obtained.

It should be noted that the size of the first compensation data table is generally related to the bit depth (Bit-Depth) of the image data. For example, if the bit depth of the image data is 8-bit, the first compensation data table needs a size of 256*256.

In order to save costs, when the first compensation data table is actually used, the first compensation data table can be down-sampled and stored with a certain step size, and when the first compensation data table is to be used, the same step size can be used for further sampling and storage. Upsampling approximately restores the corresponding first grayscale compensation data.

In the drive compensation method provided by the above embodiment, according to the initial grayscale data of the current frame image corresponding to each subpixel, and the initial grayscale data of the previous frame image corresponding to each subpixel, from the pre-generated first compensation data table. Obtain the first gray-scale compensation data of the current frame image corresponding to all sub-pixels in the process, and generate first image compensation data corresponding to the current frame image according to the first gray-scale compensation data corresponding to all sub-pixels; based on the first image compensation data to generate Corresponding to the data signal of each sub-pixel, the data signal is the data signal after compensation. After the data signal is written into each sub-pixel, it can effectively improve the response speed of the liquid crystal, shorten the response time of the liquid crystal, and avoid the display of the liquid crystal display. The screen appears blurry.

It is worth noting that the normal operation of the liquid crystal display also depends on the cooperative work of the source driver chip 3 and the gate driver chip 2 (or Gate On Array). The driving circuit of each sub-pixel in the liquid crystal display includes a set of resistors and capacitors, that is, the driving circuit of the entire liquid crystal display is composed of a matrix of resistors and capacitors. For the gate driver chip 2, as the position of the resistor and the capacitor is farther and farther away from the position of the gate driver chip 2, the scanning signal will generate a certain delay, which will cause the capacitor to be insufficiently charged within a certain period of time. Similarly, a column of sub-pixels connected to the same data line has a similar problem, that is, the data signals received by the sub-pixels located far from the source driving chip 3 will be delayed, resulting in insufficient charging. Both of the above two delay methods will cause the liquid crystal display to be insufficiently charged, causing the same signal to show different performances at different positions on the same panel, thereby causing the display quality of the panel to deteriorate. This problem becomes more pronounced as the panel size increases.

In some embodiments, the liquid crystal display includes grid lines and data lines arranged in a cross, and a plurality of sub-pixels distributed in an array, the plurality of sub-pixels include a plurality of columns of sub-pixels corresponding to the data lines one-to-one, and each column of sub-pixels Each sub-pixel in is electrically connected to the corresponding data line respectively;

According to the first gray-scale compensation data corresponding to all the adjacent two sub-pixels, and from the pre-generated second compensation data table, obtain each adjacent two sub-pixels that are far away from the starting end of the data line The first target subpixel corresponds to the second grayscale compensation data of the current frame image; the abscissa of the index value of the second compensation data table includes the first target subpixel that is not corresponding to the first target subpixel in the adjacent two subpixels. Grayscale compensation data, the ordinate of the index value of the second compensation data table includes the first grayscale compensation data corresponding to the first target subpixel in the two adjacent subpixels, and the second compensation data table The second grayscale compensation data corresponding to the index value one-to-one is stored in the , and the second grayscale compensation data is the second grayscale compensation data of the first target sub-pixel corresponding to the current frame image.

Specifically, the above-mentioned liquid crystal display includes a plurality of gate lines and a plurality of data lines, and the gate lines and the data lines are arranged to cross each other. The liquid crystal display further includes a plurality of sub-pixels distributed in an array, and the plurality of sub-pixels includes a plurality of rows of sub-pixels and a plurality of columns of sub-pixels. Exemplarily, the plurality of rows of sub-pixels are in one-to-one correspondence with the plurality of gate lines, so The plurality of columns of sub-pixels are in one-to-one correspondence with the plurality of data lines; the sub-pixels included in each row of sub-pixels are respectively electrically connected to the corresponding gate lines, and the sub-pixels included in each column of sub-pixels are respectively electrically connected to the corresponding data lines. connect.

As shown in FIG. 10, the sub-pixel 403 and the sub-pixel 404 are two adjacent sub-pixels located in the same column. When the scan signal input by the gate line Gate1 is at an active level, the data line Source1 charges the sub-pixel 403, and when the gate line Gate2 is input When the scan signal of , is at an active level, the data line Source1 charges the sub-pixel 404 .

FIG. 11 illustrates an N*M second compensation data table. Exemplarily, the abscissa of the index value of the second compensation data table includes the first sub-pixel that is not corresponding to the first target sub-pixel in the adjacent two sub-pixels. A grayscale compensation data (such as G1-G6), the ordinate of the index value of the second compensation data table includes the first grayscale compensation data corresponding to the first target subpixel in the two adjacent subpixels ( For example, T1˜TM), the second compensation data table stores the second grayscale compensation data L of the current frame image corresponding to the index values one-to-one. It is worth noting that the second grayscale compensation data L can be the final compensated data, that is, it is not necessary to perform other operations on the second grayscale compensation data L, and the data signal can be obtained directly based on the second grayscale compensation data L . Alternatively, the second grayscale compensation data L may be a difference value that needs to be compensated, that is, the difference value needs to be added to the initial grayscale data of the current frame image to obtain final compensated data, and then based on the final compensation value data to get the data signal.

In more detail, taking position 801 in the second compensation data table as an example, exemplarily, G2 in L(G2, T4) at this position 801 represents the corresponding For the first grayscale compensation data, T4 represents the first grayscale compensation data corresponding to the subpixel 404 (ie, the first target subpixel), and L represents the second grayscale compensation data corresponding to the first target subpixel displaying the current frame image. The second gray-scale compensation data is formed by referring to the first gray-scale compensation data of the sub-pixel 403 , and is the data used when charging the sub-pixel 404 .

Exemplarily, G2 takes a value of 60; T4 takes a value of 90; L takes a value of 100; in this case, L is the final compensated data.

In another way, for example: G2 is 60; T4 is 90; L is 10; in this case, L is a difference that needs to be compensated, that is, the difference needs to be compared with the first One gray-scale compensation data is added, that is, 10+90, and the final compensated data 100 is obtained.

It should be noted that the size of the second compensation data table is generally related to the bit depth (Bit-Depth) of the image data. For example, if the bit depth of the image data is n-bit, the second compensation data table needs a size of 2 ⁿ *2 ⁿ .

Similarly, in order to save costs, when the second compensation data table is actually used, the second compensation data table can be down-sampled and stored with a certain step size. When the second compensation data table is to be used, the same The step size is up-sampled to approximately restore the corresponding second gray-scale compensation data.

The response time compensation module 105 can obtain the first gray-scale compensation data corresponding to each sub-pixel, the first gray-scale compensation data corresponding to each sub-pixel constitutes the first image compensation data corresponding to the current frame image, and the first image The compensation data is transmitted to the undercharge compensation module 106 .

The undercharge compensation module 106 obtains, from the pre-generated second compensation data table, according to the first gray-scale compensation data corresponding to all the adjacent two sub-pixels, the distance between the adjacent two sub-pixels is far away from all the adjacent sub-pixels. The first target sub-pixel at the starting end of the data line corresponds to the second grayscale compensation data of the current frame image; that is, the undercharge compensation module 106 can obtain all the first target sub-pixels in the display panel corresponding to the current frame image. The second grayscale compensation data. The driving module 107 generates a data signal for writing into each of the first target sub-pixels based on the second gray-scale compensation data corresponding to each of the first target sub-pixels.

In the driving compensation method provided by the above-mentioned embodiment, the second gray-scale compensation data of the first target sub-pixel in each column of sub-pixels is compensated based on the first gray-scale compensation data of the adjacent non-first target sub-pixels. Therefore, the display quality of different positions of the liquid crystal display can be consistent, and the difference existing when the same picture is displayed at different positions can be alleviated.

Figure 12 illustrates a gate driver module and a row of sub-pixels it controls. The gate driver module may be located at position 202 on the left as shown in the example, and the gate driver module may be a conventional gate driver chip or GOA design. The actual charging of the sub-pixel 405 and the sub-pixel 406 may be different, and the sub-pixel 406 far from the position 202 may be under-charged.

Figure 13 illustrates two gate driving modules and a row of sub-pixels controlled by them. The gate driving modules may be located at the left 202 position and the right 203 position respectively as in the example, and the gate driving module may be a traditional gate driver IC or gate on array. design. Due to the location of the gate driving module, the charging of the sub-pixels 405, 406 and 407 may be different, and the 407 may be under-charged because it is far away from the gate driving module.

As shown in FIG. 14 , the abscissa in FIG. 14 represents the position, and the ordinate represents the charging rate. In different positions p1, p2, p3, p4 of the display panel, the same charging time and charging voltage are given. For a row of sub-pixels corresponding to FIG. 12 , the change curve of the charging rate is shown as curve 1101 . For a row of sub-pixels corresponding to FIG. 13 , the change curve of the charging rate is as shown in curve 1102. Of course, r2 may also be different at the positions of p1 and p4. It should be noted that, similar to the case of the gate driving module, the curve 1101 may also correspond to the charging performance of each sub-pixel electrically connected to a data line.

In some embodiments, the plurality of sub-pixels includes a plurality of rows of sub-pixels corresponding to the gate lines one-to-one, and each sub-pixel in each row of the sub-pixels is electrically connected to the corresponding gate line respectively;

A data signal for writing into the second target sub-pixel is generated based on the first gray-scale compensation data, the second gray-scale compensation data and the compensation parameter corresponding to each of the second target sub-pixels.

Specifically, the abscissa of the index value of the third compensation data table includes the abscissa of the second target sub-pixel (eg, sub-pixel 406 ), and the ordinate of the index value of the third compensation data table includes the The ordinate of the second target sub-pixel, the third compensation data table stores compensation parameters one-to-one corresponding to the index value.

When acquiring the second gray-scale compensation data corresponding to the second target sub-pixel from the second compensation data table, the specific acquisition method is as follows: according to the first gray-scale compensation data of the second target sub-pixel, and The first gray-scale compensation data of the sub-pixels located in the same column, adjacent to, and closer to the starting end of the data line with the second target sub-pixel are searched and obtained from the second compensation data table. The second gray-scale compensation data corresponding to the target sub-pixel.

Likewise, the first grayscale compensation data of the second target sub-pixel may be obtained from the first compensation data table.

Based on the first grayscale compensation data, the second grayscale compensation data and the compensation parameter corresponding to the second target subpixel, the step of generating a data signal for writing into the second target subpixel specifically includes: :

Exemplarily, the second gray-scale compensation data corresponding to the second target sub-pixel is the difference value to be compensated for 10, the first gray-scale compensation data corresponding to the second target sub-pixel is 90, and the second target sub-pixel corresponds to 90. The compensation parameter corresponding to the sub-pixel is 1.1, then the third gray-scale compensation data obtained by the second target sub-pixel after undergoing compensation along the grid line direction is 90+10*1.1, that is, the third gray-scale compensation data is 101.1.

Based on the first grayscale compensation data, the second grayscale compensation data, and the compensation parameter corresponding to the second target subpixel, the step of generating a data signal for writing into the second target subpixel includes: A data signal for writing into the second target sub-pixel is generated based on the third grayscale compensation data.

In the driving compensation method provided by the above-mentioned embodiment, according to the position data corresponding to the second target sub-pixel, the compensation parameter corresponding to the second target sub-pixel is obtained from the pre-generated third compensation data table; Obtain the second grayscale compensation data corresponding to the second target sub-pixel in the second compensation data table; obtain the third grayscale compensation data according to the first grayscale compensation data, compensation parameters and the second grayscale compensation data level compensation data, and then a data signal written into the second target sub-pixel is obtained according to the third gray level compensation data.

In the driving compensation method provided by the above embodiment, the third grayscale compensation data of the second target sub-pixel is based on the second grayscale compensation data of the adjacent sub-pixels located in the same column, and its The position (that is, the distance between it and the initial end of the corresponding grid line) is compensated, so that the display quality of the liquid crystal display at different positions can be consistent, and the difference existing when the same picture is displayed at different positions is alleviated.

It should be noted that, when the charging compensation in the gate line direction is performed, the second compensation data table and the third compensation data table may also be integrated into one compensation data table. Similarly, the third compensation data table can also be down-sampled and stored for cost saving, and then the intermediate data can be recovered by up-sampling in real time during actual chip operation.

It is worth noting that when compensating the sub-pixel located in the middle in the structure as shown in FIG. 13 , the reference sub-pixel corresponding to the middle sub-pixel can be determined according to which gate line the middle sub-pixel is specifically located and connected to.

It should be noted that when the drive compensation method provided in the above embodiment is used for drive compensation, it is equivalent to experiencing three levels of compensation. The first level of compensation is based on the changes of two adjacent frames of image data to compensate all sub-pixels; the second level of compensation Compensation for the first target sub-pixel is based on the difference between the gray-scale data of two adjacent sub-pixels along the extension direction of the data line; the third-level compensation is based on the extension direction of the gate line and the distance from the starting end of the gate line. The second target sub-pixel at a certain distance is compensated; wherein the first level of compensation is compensation in the time domain, and the second and third levels of compensation are compensation in the space domain. Combined with the voltage overdrive technology in the space domain, combined with the joint compensation technology in the space domain, the display quality of the liquid crystal display is well improved. It will be sharper and has the effect of deblurring; at the same time, the display quality of different positions of the liquid crystal display tends to be consistent, which greatly reduces the differences in the display of the same picture in different positions.

In addition, it is worth noting that all sub-pixels in the display panel have undergone the first-level compensation, some sub-pixels (ie the first target sub-pixels) have undergone the second-level compensation, and some sub-pixels (ie the second target sub-pixels) have undergone the second-level compensation. ) experienced a third level of compensation.

For the first compensation data table, the second compensation data table and the third compensation data table, the down-sampling storage performed, and the up-sampling recovery performed are as follows.

As shown in FIG. 15 , the third compensation data table after down-sampling is shown in FIG. 15 . The parameter i represents the abscissa of the index value, and the parameter j represents the ordinate of the index value.

As shown in Figure 16, when bilinear difference is performed, the algorithm is as follows:

E=(A*alpha+B*(x-alpha))/x

F=(C*alpha+D*(x-alpha))/x

G=(E*beta+F*(y-beta))/y

alpha=distance(E,B), x=distance(A,B)

beta=distance(G, F), y=distance(E, F)

Exemplarily, A represents the initial compensation parameter determined according to the position data of the second target sub-pixel, B, C, and D are respectively the compensation parameters near A. According to the above algorithm, the final compensation of the second target sub-pixel is calculated. Compensation parameter G required.

It should be noted that when the initial compensation parameter A is determined according to the position data of the second target sub-pixel, if there is no index value corresponding to the position data of the second target sub-pixel in the up-sampled third compensation data table , the index value with the closest position can be found in the third compensation data table according to the position data of the second target sub-pixel as the index value corresponding to the second target sub-pixel.

As shown in Figure 17, when performing triangular difference, the algorithm is as follows:

G=A*alpha1+B*beta1+D*theta1

H=A*alpha2+C*beta2+D*theta2

alpha1=area(BGD), beta1=area(AGD)

theta1=area(AGB)

alpha2=area(CHD), beta2=area(AHD)

theta2=area(AHC)

The triangular difference in FIG. 17 includes the upper triangular difference method and the lower triangular difference method. In practical application, the upper triangular difference method or the lower triangular difference method can be determined according to the actual position of the sub-pixel to be compensated.

It should be noted that distance represents the distance function, and area represents the area function.

When performing up-sampling restoration, different sub-pixels in the display panel select different up-sampling differences. Exemplarily, as shown in FIG. 15 , the sub-pixels located near the diagonal line extending from the upper left corner to the lower right corner of FIG. 15 The pixel adopts the triangular difference value to obtain the corresponding compensation parameter; the sub-pixel far from the diagonal adopts the bilinear difference value to obtain the corresponding compensation parameter.

An embodiment of the present disclosure further provides a drive compensation device for a liquid crystal display, which is used to implement the drive compensation method provided by the above embodiments, the drive compensation device includes: an acquisition module, a response time compensation module, and a drive module;

The response time compensation module is used for: determining the first image compensation data corresponding to the current frame image according to the image data of the current frame image to be displayed by the liquid crystal display and the image data of the previous frame image;

When the drive compensation device provided by the embodiment of the present disclosure is used to drive the liquid crystal display to display, it can be determined according to the image data of the previous frame image and the image data of the current frame image, when the liquid crystal display switches from the previous frame image to the current frame image, the liquid crystal display corresponding inversion degree; and adaptively compensate the image data corresponding to the current frame image according to the inversion degree; so that after the data signal generated based on the first image compensation data is written into each sub-pixel, the response of the liquid crystal can be effectively improved speed, shorten the response time of the liquid crystal, and avoid the blurring phenomenon of the liquid crystal display when displaying the picture.

In some embodiments, the obtaining module specifically includes: a receiving module, a compression module, a storage module, and a decompression module;

The response time compensation module is specifically used for:

In some embodiments, the liquid crystal display includes grid lines and data lines arranged in a cross, and a plurality of sub-pixels distributed in an array, the plurality of sub-pixels include a plurality of columns of sub-pixels corresponding to the data lines one-to-one, and each column of sub-pixels Each sub-pixel in the device is electrically connected to the corresponding data line respectively; the drive compensation device further includes: an under-charge compensation module;

The driving module is specifically configured to: based on the first gray-scale compensation data, the second gray-scale compensation data and the compensation parameters corresponding to the second target sub-pixel, generate a data signal.

Embodiments of the present disclosure further provide a liquid crystal display, including the drive compensation device provided by the above embodiments.

In the drive compensation device provided by the above embodiment, by adding a response time compensation module and an undercharge compensation module, the sharpness of the moving picture is effectively improved without changing the liquid crystal display structure, and the display consistency of different display areas is improved. sex.

Therefore, when the liquid crystal display device provided by the embodiments of the present disclosure includes the driving compensation device provided by the above embodiments, higher display quality can be achieved.

It should be noted that the liquid crystal display can be any product or component with display function, such as a TV, a monitor, a digital photo frame, a mobile phone, and a tablet computer.

It should be noted that each embodiment in this specification is described in a progressive manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the product examples, since they are basically similar to the method examples, the description is relatively simple, and the relevant parts can be referred to the partial descriptions of the product examples.

Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in this disclosure, "first," "second," and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the various components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected," "coupled," or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element, Or intermediate elements may be present.

In the foregoing description of the embodiments, the particular features, structures, materials or characteristics may be combined in any suitable manner in any one or more of the embodiments or examples.

It should be noted that it should be understood that the division of the above modules is only a division of logical functions, and in actual implementation, all or part of them may be integrated into a physical entity, or may be physically separated. And these modules can all be implemented in the form of software calling through processing elements; they can also all be implemented in hardware; some modules can also be implemented in the form of calling software through processing elements, and some modules can be implemented in hardware. For example, the determination module may be a separately established processing element, or may be integrated into a certain chip of the above-mentioned device to be implemented, in addition, it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device may Call and execute the function of the above determined module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, and can also be implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuit (ASIC), or, one or Multiple microprocessors (digital signal processors, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc. For another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can call program codes. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The terms "first", "second", etc. in the description and claims of the present disclosure are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used can be interchanged under appropriate circumstances such that the embodiments of the disclosure described herein are implemented in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices. In addition, the use of "and/or" in the specification and the claims means at least one of the linked objects, such as A and/or B and/or C, is meant to include A alone, B alone, C alone, and both A and B Existence, B and C exist, A and C exist, and 7 cases where A, B, and C all exist. Similarly, the use of "at least one of A and B" in this specification and in the claims should be understood to mean "A alone, B alone, or both A and B present."

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited to this. should be included within the scope of protection of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

A driving compensation method for a liquid crystal display, comprising:

acquiring image data corresponding to each frame image to be displayed by the liquid crystal display;

Determine the first image compensation data corresponding to the current frame image according to the image data of the current frame image and the image data of the previous frame image to be displayed by the liquid crystal display;

A data signal for writing into each sub-pixel included in the liquid crystal display is generated based on the first image compensation data.
The driving compensation method for a liquid crystal display according to claim 1, wherein the step of acquiring image data corresponding to each frame of images to be displayed by the liquid crystal display specifically comprises:

Receive image data corresponding to each frame of images in sequence, compress and save the image data corresponding to each frame of image, and transmit to the response time compensation module;

The response time compensation module receives the image data corresponding to the current frame image and the image data corresponding to the previous frame image obtained by decompression.
The driving compensation method for a liquid crystal display according to claim 1, wherein the image data corresponding to each frame image includes initial grayscale data corresponding to each sub-pixel one-to-one;

According to the image data of the current frame image and the image data of the previous frame image to be displayed by the liquid crystal display, the step of determining the first image compensation data corresponding to the current frame image specifically includes:

According to the initial grayscale data of the current frame image corresponding to each subpixel and the initial grayscale data of the previous frame image corresponding to each subpixel, obtain the current frame image corresponding to each subpixel from the pre-generated first compensation data table the first gray-scale compensation data, generating first image compensation data corresponding to the current frame image according to the first gray-scale compensation data corresponding to each sub-pixel;

The abscissa of the index value of the first compensation data table includes the initial grayscale data of the previous frame image corresponding to the sub-pixel, and the ordinate of the index value of the first compensation data table includes the current frame image corresponding to the sub-pixel. Initial grayscale data, the first compensation data table stores first grayscale compensation data corresponding to index values one-to-one.
The driving compensation method for a liquid crystal display according to claim 3, wherein the liquid crystal display comprises grid lines and data lines arranged in a cross, and a plurality of sub-pixels distributed in an array, the plurality of sub-pixels including a a corresponding multi-column of sub-pixels, each sub-pixel in each column of sub-pixels is respectively electrically connected to the corresponding data line;

The step of generating a data signal for writing into each sub-pixel included in the liquid crystal display based on the first image compensation data includes:

acquiring the first gray-scale compensation data corresponding to all adjacent two sub-pixels in the same column of sub-pixels;

According to the first gray-scale compensation data corresponding to all the adjacent two sub-pixels, and from the pre-generated second compensation data table, obtain each adjacent two sub-pixels that are far away from the starting end of the data line The first target subpixel corresponds to the second grayscale compensation data of the current frame image; the abscissa of the index value of the second compensation data table includes the first target subpixel that is not corresponding to the first target subpixel in the adjacent two subpixels. Grayscale compensation data, the ordinate of the index value of the second compensation data table includes the first grayscale compensation data corresponding to the first target subpixel in the two adjacent subpixels, and the second compensation data table The second grayscale compensation data corresponding to the index value one-to-one is stored in the ;

Based on the second grayscale compensation data corresponding to each of the first target sub-pixels, a data signal for writing into each of the first target sub-pixels is generated.
The driving compensation method for a liquid crystal display according to claim 4, wherein the plurality of sub-pixels comprises a plurality of rows of sub-pixels corresponding to the gate lines one-to-one, and each sub-pixel in each row of the sub-pixels corresponds to Grid line electrical connection;

The step of generating a data signal for writing into each sub-pixel included in the liquid crystal display based on the first image compensation data specifically includes:

obtaining position data corresponding to the second target sub-pixel in the plurality of sub-pixels;

According to the position data corresponding to the second target sub-pixel, the compensation parameter corresponding to the second target sub-pixel is obtained from the pre-generated third compensation data table; the abscissa of the index value of the third compensation data table Including the abscissa of the second target sub-pixel, the ordinate of the index value of the third compensation data table includes the ordinate of the second target sub-pixel, and the third compensation data table is stored with the index. Compensation parameters corresponding to one-to-one value;

Obtain second grayscale compensation data corresponding to the second target sub-pixel from the second compensation data table;

Based on the first grayscale compensation data, the second grayscale compensation data, and the compensation parameter corresponding to the second target subpixel, a data signal for writing into the second target subpixel is generated.
A drive compensation device for a liquid crystal display, used for implementing the drive compensation method according to any one of claims 1 to 5, the drive compensation device comprising: an acquisition module, a response time compensation module and a drive module;

The acquiring module is used for: acquiring image data corresponding to each frame of images to be displayed by the liquid crystal display;

The response time compensation module is used for: determining the first image compensation data corresponding to the current frame image according to the image data of the current frame image to be displayed by the liquid crystal display and the image data of the previous frame image;

The driving module is configured to: generate a data signal for writing into each sub-pixel included in the liquid crystal display based on the first image compensation data.
The driving compensation device of the liquid crystal display according to claim 6, wherein the obtaining module specifically comprises: a receiving module, a compression module, a storage module and a decompression module;

The receiving module is used to sequentially receive image data corresponding to each frame of image, and transmit the image data corresponding to each frame of image to the compression module and the response time compensation module respectively;

The compression module is used to compress the image data corresponding to each frame of image and save it in the storage module;

The decompression module is configured to decompress the image data corresponding to the previous frame of image from the storage module, and transmit it to the response time compensation module.
The driving compensation device of the liquid crystal display according to claim 6, wherein the image data corresponding to each frame image includes initial grayscale data corresponding to each sub-pixel one-to-one;

The response time compensation module is specifically used for:

According to the initial grayscale data of the current frame image corresponding to each subpixel and the initial grayscale data of the previous frame image corresponding to each subpixel, obtain the current frame image corresponding to each subpixel from the pre-generated first compensation data table the first gray-scale compensation data, generating first image compensation data corresponding to the current frame image according to the first gray-scale compensation data corresponding to each sub-pixel;

The abscissa of the index value of the first compensation data table includes the initial grayscale data of the previous frame image corresponding to the sub-pixel, and the ordinate of the index value of the first compensation data table includes the current frame image corresponding to the sub-pixel. Initial grayscale data, the first compensation data table stores first grayscale compensation data corresponding to index values one-to-one.
The driving compensation device for a liquid crystal display according to claim 8, wherein the liquid crystal display comprises grid lines and data lines arranged in a cross, and a plurality of sub-pixels distributed in an array, the plurality of sub-pixels including a plurality of sub-pixels and the data lines A corresponding multi-column of sub-pixels, each sub-pixel in each column of sub-pixels is respectively electrically connected to the corresponding data line; the driving compensation device further includes: an under-charge compensation module;

The under-charge compensation module is used for: acquiring the first gray-scale compensation data corresponding to all adjacent two sub-pixels in the same column of sub-pixels;

According to the first gray-scale compensation data corresponding to all the adjacent two sub-pixels, and from the pre-generated second compensation data table, obtain each adjacent two sub-pixels that are far away from the starting end of the data line The first target subpixel corresponds to the second grayscale compensation data of the current frame image; the abscissa of the index value of the second compensation data table includes the first target subpixel that is not corresponding to the first target subpixel in the adjacent two subpixels. Grayscale compensation data, the ordinate of the index value of the second compensation data table includes the first grayscale compensation data corresponding to the first target subpixel in the two adjacent subpixels, and the second compensation data table The second grayscale compensation data corresponding to the index value one-to-one is stored in the ;

The driving module is specifically configured to: generate a data signal for writing into each of the first target sub-pixels based on the second gray-scale compensation data corresponding to each of the first target sub-pixels.
The driving compensation device of the liquid crystal display according to claim 9, wherein the plurality of sub-pixels comprises a plurality of rows of sub-pixels corresponding to the gate lines one-to-one, and each sub-pixel in each row of the sub-pixels corresponds to Grid line electrical connection;

The under-charge compensation module is further configured to: acquire position data corresponding to the second target sub-pixel in the plurality of sub-pixels;

According to the position data corresponding to the second target sub-pixel, the compensation parameter corresponding to the second target sub-pixel is obtained from the pre-generated third compensation data table; the abscissa of the index value of the third compensation data table Including the abscissa of the second target sub-pixel, the ordinate of the index value of the third compensation data table includes the ordinate of the second target sub-pixel, and the third compensation data table is stored with the index. Compensation parameters corresponding to one-to-one value;

Obtain second grayscale compensation data corresponding to the second target sub-pixel from the second compensation data table;

The driving module is specifically configured to: based on the first gray-scale compensation data, the second gray-scale compensation data and the compensation parameters corresponding to the second target sub-pixel, generate a data signal.
A liquid crystal display, comprising the drive compensation device according to any one of claims 6-9.