Display panel, compensation method and device

Abstract

The application discloses a display panel, a compensation method and equipment, and relates to the technical field of liquid crystal display, and comprises a liquid crystal panel, a time sequence controller, a compensation module, and the time sequence controller is configured to generate a data signal; the compensation module is connected with the time sequence controller and the liquid crystal panel respectively, and the compensation module is configured to compensate a first type of row signal of the data signal to obtain a compensation signal; wherein the compensation signal is configured to compensate the display quality of the liquid crystal panel. The display panel provided by the application compensates the first type of row signal through the compensation module, thereby compensating the display quality of the liquid crystal panel, and then improving the light and dark line problem of the display panel and improving the display effect of the display panel.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of liquid crystal display, and in particular, to a display panel, a compensation method and equipment. BACKGROUND

[0002] The interlaced driving technology divides the image frame into upper half field and lower half field by the way of alternating scanning. In each field, only the odd or even rows of pixels are driven at the same time, while the other group of rows is temporarily ignored. Therefore, a complete picture is composed of two frames of pictures, and under dynamic picture, due to the time difference, the fishbone-shaped picture quality problem will occur. However, after combining the interlaced driving technology with the DLG (Dual Line Gate) timing, the fishbone-shaped picture quality problem can be effectively improved. However, due to the different charging times of odd and even rows, bright and dark lines will appear in the display picture, which will further lead to poor display effect of the display panel. SUMMARY

[0003] Embodiments of the present application provide a display panel, a compensation method and equipment to solve the technical problem of poor display effect of the display panel caused by the interlaced driving technology in the prior art.

[0004] To solve the above technical problem, embodiments of the present application disclose the following technical solutions:

[0005] In a first aspect, a display panel is provided, comprising:

[0006] a liquid crystal panel;

[0007] a timing controller configured to generate a data signal;

[0008] a compensation module connected with the timing controller and the liquid crystal panel respectively, the compensation module being configured to compensate a first type of row signal of the data signal to obtain a compensation signal;

[0009] The compensation signal is configured to compensate the display quality of the liquid crystal panel.

[0010] In combination with the first aspect, the compensation module comprises a splitting unit configured to receive the data signal and split the data signal into odd and even rows to obtain the first type of row signal.

[0011] In combination with the first aspect, the compensation module further comprises a gray scale mapping table connected with the splitting unit, the gray scale mapping table being configured to represent the gray scale value of the first type of row signal and the compensation value corresponding to the gray scale value.

[0012] In combination with the first aspect, the compensation module further comprises a modification unit connected with the splitting unit and the gray scale mapping table, and the modification unit is configured to modify the gray scale value of the first type of row signal based on the compensation value to obtain the compensation signal.

[0013] In combination with the first aspect, the display panel further comprises a source driver connected with the compensation module and the liquid crystal panel.

[0014] The source driver is configured to convert the compensation signal into a voltage signal, and the voltage signal is configured to be input into the liquid crystal panel to drive the liquid crystal panel to display a picture.

[0015] In a second aspect, a display compensation method applied to a display panel is provided, and the method comprises the following steps:

[0016] obtaining a first gray scale value corresponding to a first type of row signal;

[0017] compensating the first gray scale value based on a pre-constructed gray scale mapping table to obtain a compensation signal;

[0018] inputting the compensation signal into a liquid crystal panel for display to compensate the display quality of the liquid crystal panel.

[0019] In combination with the second aspect, the construction method of the gray scale mapping table comprises:

[0020] obtaining a first luminance value corresponding to a first type of row when the display panel displays a first type of test pattern;

[0021] obtaining a second luminance value corresponding to a second type of row when the display panel displays a second type of test pattern;

[0022] drawing a gray scale-luminance curve based on a first gray scale value corresponding to the first luminance value in the first type of row and a second gray scale value corresponding to the second luminance value in the second type of row;

[0023] constructing a gray scale mapping table based on the gray scale-luminance curve;

[0024] The gray scale mapping table is configured to represent the gray scale values corresponding to the first type of row and the second type of row under the same luminance value.

[0025] In combination with the second aspect, the method of compensating the first gray scale value based on the pre-constructed gray scale mapping table to obtain a compensation signal comprises:

[0026] taking the second luminance value as a target luminance, and calculating a third gray scale value corresponding to the first type of row when emitting the second luminance value;

[0027] adding a difference between the third gray scale value and the first gray scale value to the first gray scale value to obtain the compensation signal.

[0028] In combination with the second aspect, the first type of test pattern has a plurality, the gray scale values of the second type of row of the plurality of first type of test pattern are constant, and the gray scale values of the first type of row of the plurality of first type of test pattern are in an arithmetic sequence.

[0029] The second type of test pattern has a plurality, the gray scale values of the first type of row of the plurality of second type of test pattern are constant, and the gray scale values of the second type of row of the plurality of second type of test pattern are in an arithmetic sequence.

[0030] In a third aspect, a display device is provided, which includes the display panel of any one of the first aspect or is displayed by the display compensation method of any one of the second aspect.

[0031] One of the technical solutions described above has the following advantages or beneficial effects:

[0032] Compared with the prior art, the display panel provided in the application includes a liquid crystal panel, a timing controller configured to generate a data signal, and a compensation module connected with the timing controller and the liquid crystal panel, respectively, and configured to compensate a first type of row signal of the data signal to obtain a compensation signal, wherein the compensation signal is configured to compensate the display quality of the liquid crystal panel. The display panel provided in the application compensates the first type of row signal by the compensation module, thereby compensating the display quality of the liquid crystal panel, and further improving the bright-dark line problem of the display panel and improving the display effect of the display panel.

[0033] The display compensation method provided in the application is applied to a display panel, and includes the following steps: obtaining a first gray scale value corresponding to a first type of row signal; compensating the first gray scale value based on a pre-constructed gray scale mapping table to obtain a compensation signal; and inputting the compensation signal into a liquid crystal panel for display to compensate the display quality of the liquid crystal panel. The display compensation method provided in the application compensates the gray scale of the first type of row signal based on the pre-constructed gray scale mapping table, thereby improving the bright-dark line problem of the display panel and improving the display effect of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0034] The technical solutions and other beneficial effects of the application will become apparent from the following detailed description of the specific embodiments of the application, taken in conjunction with the accompanying drawings.

[0035] Figure 1 The module structure schematic diagram of the display panel provided in the embodiments of the application is shown in the following figure.

[0036] Figure 2 Unit structure diagram of the compensation module provided by the embodiment of the present application;

[0037] Figure 3 Flow step diagram of the compensation method provided by the embodiment of the present application;

[0038] Figure 4 Construction step diagram of the gray scale mapping table provided by the embodiment of the present application;

[0039] Figure 5 Gray scale-brightness curve diagram provided by the embodiment of the present application;

[0040] Figure 6 First type of test pattern diagram provided by the embodiment of the present application;

[0041] Figure 7 Second type of test pattern diagram provided by the embodiment of the present application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. In the description of the present application, it should be understood that the terms “center”, “vertical”, “horizontal”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0043] The specific embodiments of the present application will be described below through examples:

[0044] As Figure 1As shown, the present application provides a display panel, comprising: a liquid crystal panel; a timing controller, the timing controller being configured to generate a data signal; a compensation module, the compensation module being connected with the timing controller and the liquid crystal panel respectively, the compensation module being configured to compensate a first type of row signal of the data signal to obtain a compensation signal; wherein the compensation signal is configured to compensate the display quality of the liquid crystal panel. Specifically, the timing controller, i.e. TCON (Timing Controller), is mainly used for controlling the timing and signal processing of the liquid crystal display, ensuring that the image can be scanned and displayed with correct timing. The compensation module, also known as compensation IP, mainly functions to improve the performance of the image on the liquid crystal display screen by analyzing and adjusting the input image signal, and correcting possible image quality problems. Therefore, the present application can compensate the first type of row signal in the data signal through the compensation module, thereby obtaining the compensation signal, and inputting the compensation signal into the liquid crystal panel to compensate the display quality of the display panel, thereby improving the light and dark line problem of the display panel and improving the display effect of the display panel.

[0045] In some embodiments of the present application, the timing controller also has the following functions and effects, timing generation: the timing controller generates various timing signals required by the liquid crystal display, including clock signals, row scanning signals, data transmission signals, etc. These timing signals are necessary for the normal operation of the liquid crystal display, and trigger the activation and refresh of the liquid crystal pixels at the correct time.

[0046] Data processing and mapping: the timing controller processes and maps the input image data into a signal form acceptable by the liquid crystal display. The timing controller can process the input image data according to the correct format and encoding method, and map it to the corresponding data line and pixel to realize accurate image display.

[0047] Gate line scanning control: the timing controller controls the scanning sequence and timing of the gate line to ensure that the gate line scans the pixels row by row in the correct order. The timing controller can ensure the activation timing and duration of the gate line signal accurate through precise timing control, to realize the operation of scanning pixels and refreshing images row by row.

[0048] Signal synchronization and timing calibration: the timing controller synchronizes and calibrates the input signals to ensure the stability and accuracy of image display. The timing controller can adjust and correct the timing according to the actual situation to eliminate signal delay, conflict, interference and other problems, thereby ensuring the clarity and continuity of the image.

[0049] Control instruction processing: the timing controller receives and processes control instructions from the main control chip or display controller, and performs corresponding operations according to the instruction content and timing requirements. The timing controller can dynamically adjust the timing parameters, refresh rate, pixel clock frequency, etc. according to the requirements of the instructions to meet different display requirements and modes.

[0050] As shown in Figure 1 and Figure 2 In the embodiment of the present application, the compensation module includes a splitting unit, which is configured to receive a data signal and split the data signal according to odd and even rows to obtain a first type of row signal. Specifically, the data signal includes an odd row signal and an even row signal, the odd row signal is used to drive the odd row pixel unit in the liquid crystal panel, and the even row signal is used to drive the even row pixel unit in the liquid crystal panel. After the compensation module obtains the data signal, the data signal is split according to the odd row signal and the even row signal, so as to obtain the corresponding row signal which needs to be compensated.

[0051] It can be understood that the compensation module can compensate one of the odd row signal and the even row signal, or can compensate both of them at the same time. The specific type of compensation can be determined according to the corresponding row signal when the bright and dark line problem occurs in the display panel.

[0052] As shown in Figure 1 and Figure 2 In the embodiment of the present application, the compensation module further includes a gray scale mapping table, which is connected with the splitting unit and is configured to represent the gray scale value of the first type of row signal and the compensation value corresponding to the gray scale value. Specifically, as shown in Table 1, the gray scale mapping table includes a brightness value, an actual gray scale value, a mapping gray scale value and a compensation value, wherein the brightness value represents the brightness value corresponding to the first type of row signal when displayed in the display panel, the actual gray scale value represents the actual gray scale of the first type of row signal, the mapping gray scale value represents the target gray scale value to be modified, and the compensation value represents the gray scale value of the first type of row signal under the same brightness. In Table 1, except that the mapping gray scale value is equal to the actual gray scale value at 0 gray scale, the mapping gray scale value is smaller than the actual gray scale value in other cases. Since the higher the gray scale value represents the greater the brightness, that is, the mapping gray scale value after compensation will make the picture displayed by the first row signal darker. It should be noted that the mapping gray scale value is the target gray scale value to be modified by the row signal, or the compensation gray scale, and the specific value of the mapping gray scale is determined according to the type of adjustment required by the first type of row signal. For example, when the display picture needs to be adjusted to be brighter, the mapping gray scale value needs to be larger than the actual gray scale value, and vice versa if it needs to be adjusted to be darker, then the mapping gray scale value is smaller than the actual gray scale value as in Table 1.

[0053] Brightness value Actual gray scale value Mapped gray scale value Compensation value 0 0 0 0 ··· ··· ··· ··· 126 126 118 8 127 127 119 8 128 128 120 8 129 129 121 8 ··· ··· ···· ··· 255 255 247 8

[0054] Table 1 gray scale mapping table

[0055] As shown in Figure 1 and Figure 2 In the embodiment of the present application, the compensation module further includes a modification unit, which is connected with the splitting unit and the gray scale mapping table. The modification unit is configured to modify the gray scale value of the first row signal based on the compensation value to obtain a compensated signal. Specifically, the modification unit modifies the gray scale value of the first row signal based on the actual gray scale value and the mapping gray scale value in the gray scale mapping table. For example, when the gray scale value of the first row signal is 126, according to the mapping relationship, the target gray scale value is 118. Therefore, the modification unit can directly modify the gray scale value of the first row signal to 118, or the modification unit subtracts 126 from 118 to obtain a compensation value of -8, and then adds -8 to 126 to obtain a mapping gray scale value of 118. The final 118 is the compensated signal after modification.

[0056] As shown in Figure 1 and Figure 2 In the embodiment of the present application, the display panel further includes a source driver, which is connected with the compensation module and the liquid crystal panel. The source driver is configured to convert the compensated signal into a voltage signal, and the voltage signal is configured to be input into the liquid crystal panel to drive the liquid crystal panel to display a picture. Specifically, the source driver is used to control the transmission and driving of each row of pixel data. It receives data signals from the timing controller and converts them into voltage signals suitable for driving liquid crystal cells or light-emitting diodes. The source driver can control the brightness and brightness balance of each row of pixels according to the image data adjusted by the compensation IP module.

[0057] As shown in Figure 1 In the embodiment of the present application, the display panel further includes a gate driver, which is responsible for controlling the selection and driving of each column of pixels. It receives scan signals from the timing controller and converts them into scan pulses suitable for driving liquid crystal cells or light-emitting diodes. The gate driver works with the compensation IP module to ensure that each column of pixels is activated correctly according to the compensated image data, so as to realize the display of the image.

[0058] As shown in Figure 1As shown, in the embodiments of the present application, the display panel further includes a liquid crystal panel, which includes glass substrates, conductive layers, alignment layers, a liquid crystal layer, a color filter, and a polarizer. The liquid crystal panel includes two glass substrates, one of which is called the upper substrate and the other is called the lower substrate. The two glass substrates provide structural support for the liquid crystal panel and protect the internal liquid crystal layer and circuit. The conductive layer is coated on the glass substrate, usually using transparent conductive materials such as indium tin oxide (ITO). The conductive layer in the liquid crystal panel plays the role of an electrode, which is used to apply voltage signals and generate electric fields. The alignment layer is coated on the conductive layer and is a special polymer coating. The alignment layer controls the direction and arrangement of liquid crystal molecules, ensuring that the liquid crystal molecules are arranged in a specific direction to achieve accurate light adjustment and display effect. The alignment layer is sandwiched with a layer of liquid crystal material, called the liquid crystal layer. The liquid crystal molecules will change their orientation and arrangement under the action of the electric field. This change in orientation and arrangement will affect the degree of light transmission, thereby realizing the display and adjustment of the image. The color filter is located above the liquid crystal layer, and the light passes through the color filter before passing through the liquid crystal layer. The color filter is used to decompose light into red, green, and blue primary colors and limit the color output of each pixel point. The polarizer is located outside the liquid crystal panel and is covered with two layers of polarizer. These polarizers help control the polarization direction of light and enhance the influence of liquid crystal molecules in the liquid crystal layer.

[0059] Specifically, through the synergistic effect of the above structure, the liquid crystal panel can control the arrangement of liquid crystal molecules, adjust the polarization direction and intensity of the passing light. According to the different voltage signals, the arrangement of liquid crystal molecules can be changed, thereby realizing the adjustment of the passing light. This makes the liquid crystal panel can control the transmission and blocking of light, realize the display and hiding of image. The liquid crystal molecules in the liquid crystal panel can adjust the light transmission degree of each pixel point according to the action of the voltage signal. By adjusting the transmission degree of each pixel point, the liquid crystal panel can display digital, text, image and other content. The specific display content is determined by the driving circuit and the control signal. The liquid crystal panel has a planar structure, which can display the input signal according to the arrangement order of the pixel points. This planar display makes the image more uniform and smooth. Compared with other display technologies such as CRT (Cathode Ray Tube) display, the liquid crystal panel has lower energy consumption. The liquid crystal panel only needs to consume energy when the arrangement state of the liquid crystal molecules changes, and the energy consumption is very low when maintaining the stable display state. This makes the liquid crystal panel relatively energy-saving in terms of energy consumption.

[0060] As shown in Figure 1 In the embodiment of the present application, the display panel further includes a power module, which plays a role of providing power supply, adjusting voltage, managing power and protection function in the display panel. It ensures the normal operation of the display panel, provides appropriate power for each component and circuit, and ensures the stability, efficiency and safety of the power supply.

[0061] As shown in Figures 3 to 7 The embodiment of the present application provides a display compensation method, which is applied to a display panel, and the method comprises the following steps:

[0062] S1: obtaining a first gray scale value corresponding to the first type of row signal.

[0063] Specifically, generally speaking, the gray scale value of the video signal is used to determine the brightness or gray level of each pixel displayed on the display device. The gray scale value is usually represented in digital form, ranging from 0 to 255, where 0 represents the darkest pixel and 255 represents the brightest pixel. Among them, the video signal corresponding to the display picture includes odd row signal and even row signal, when the video signal is obtained, the video signal is first split according to odd and even rows, thereby obtaining odd row signal and even row signal. Generally, by displaying odd row signal and even row signal respectively, interlaced scanning technology can be realized, and thus a certain display effect can be achieved. After obtaining the odd row signal and the even row signal, it is determined whether the object to be compensated is the odd row signal or the even row signal, and further determine the gray scale value corresponding to the row, that is, the first gray scale value.

[0064] S2: Compensate the first grayscale value based on a pre-built grayscale mapping table to obtain a compensated signal. Specifically, such as... Figure 4 As shown in the embodiments of this application, the method for constructing the grayscale mapping table includes:

[0065] S201: Obtain the first brightness value corresponding to the first row when the display panel displays the first type of test pattern. Specifically, such as... Figure 6 The image shown is a first-type test graph, including test rows and baseline rows, where the test rows are located in odd-numbered rows (e.g., ...). Figure 6 (white rows in the text), the base row is located in an even-numbered row (e.g., white rows in the text), Figure 6 (The black rows in the image). The first type of test pattern consists of multiple images, where the grayscale of the test rows increases gradually from 0 to 255 as the sequence number of the first type of test pattern increases, while the grayscale value of the base row remains constant in each image; generally, the grayscale value of the base row is 0. After displaying a first type of test pattern on the display panel, the grayscale values ​​and brightness values ​​of the odd-numbered rows of this image are recorded. Finally, the grayscale values ​​and corresponding brightness values ​​of all first type of test patterns are recorded to obtain the first brightness value.

[0066] S202: Obtain the second brightness value corresponding to the second row when the display panel displays the second type of test pattern. Specifically, such as... Figure 7 The image shown is a second type of test graph, including test rows and baseline rows, where the test rows are located in even-numbered rows (e.g., ...). Figure 7 The white row in the middle), the base row is located in an odd-numbered row (e.g., white row). Figure 7 The first type of test pattern consists of multiple patterns, where the grayscale of the test rows increases gradually from 0 to 255 according to the sequence number of the first type of test pattern, while the grayscale value of the reference row is 0. After displaying a second type of test pattern on the display panel, the grayscale value and brightness value of the even-numbered rows of this pattern are recorded. Finally, the grayscale value and corresponding brightness value of all second type of test patterns are recorded to obtain the second brightness value.

[0067] S203: Draw a grayscale-brightness curve based on the first grayscale value corresponding to the first brightness value in the first row and the second grayscale value corresponding to the second brightness value in the second row. Specifically, as shown... Figure 5 The image shown is a grayscale-brightness curve. From... Figure 5 As can be seen, odd-numbered rows and even-numbered rows have different brightness values ​​at the same grayscale. Therefore, to ensure that the odd-numbered and even-numbered rows of the display panel have the same brightness, grayscale compensation is applied to either the odd-numbered or even-numbered rows to make their brightness equal. From Figure 5It can be seen that, at the same gray scale value, the brightness value of the odd row is greater than that of the even row. Based on this, there are two feasible schemes, the first is to reduce the gray scale value of the odd row, and the second is to increase the gray scale value of the even row, by changing the gray scale value, so that the brightness values displayed by the odd row and the even row in the display panel are the same.

[0068] Specifically, in the first type of test pattern and the second type of test pattern, the gray scale values are arranged in an arithmetic sequence from 0 to 255, such as optional gray scale values can include 0, 32, 64, 96, 128, 160, 192, 224 and 255.

[0069] S204: Construct a gray scale mapping table based on the gray scale-brightness curve. Wherein the gray scale mapping table is configured to represent the corresponding gray scale values of the first type of row and the second type of row at the same brightness value. Specifically, as Figure 5 and Table 1, the gray scale-brightness curve represents the curve relationship between the gray scale and the brightness of the odd row and the even row. Table 1 represents the scheme of achieving the same brightness as the even row by reducing the gray scale value of the odd row. It can be understood that in other embodiments of the present application, the scheme of increasing the gray scale value of the even row can also be used to achieve the same brightness as the odd row. The specific compensation can be selected according to the actual situation, and the present application does not make too many enumerations here.

[0070] S3: Input the compensation signal into the liquid crystal panel for display to compensate the display quality of the liquid crystal panel. Specifically, the compensated odd row signal is input into the liquid crystal display panel and displayed separately with the even row signal, thereby realizing interlaced driving display and improving the display effect of the display panel without reducing the resolution.

[0071] As Figure 5 shown in the embodiments of the present application, the method for compensating the first gray scale value based on the pre-constructed gray scale mapping table to obtain the compensation signal includes: taking the second brightness value as the target brightness, calculating the third gray scale value corresponding to the first type of row when emitting the second brightness value; adding the difference between the third gray scale value and the first gray scale value to the first gray scale value to obtain the compensation signal. Specifically, based on the gray scale-brightness curve Figure 5 shown, it can be concluded that the brightness value of the odd row can be taken as the target brightness, and the gray scale value corresponding to the even row can be changed, or the brightness value of the even row can be taken as the target brightness, and the gray scale value corresponding to the odd row can be changed, so that the odd row and the even row of the display panel have the same brightness, thereby improving the display effect of the display panel.

[0072] In the compensation, a third gray scale value corresponding to the target brightness can be directly obtained in combination with the gray scale-brightness curve diagram, the third gray scale value is taken as the compensation value, and then a compensation signal is obtained; or the third gray scale value is subtracted from the first gray scale value to obtain the compensation value, the compensation value is combined with the first gray scale value to obtain a final compensation signal.

[0073] The application further provides a display device, which comprises the display panel provided in the application or adopts the display compensation method provided in the application.

[0074] The display panel, method and device provided in the application are described in detail above, and the principles and implementation manners of the application are described by using specific examples. The above embodiment is only used for helping to understand the technical solutions and core ideas of the application; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified or some technical features can be replaced by equivalents; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A display compensation method applied to a display panel, characterized in that, The method comprises the following steps: obtaining a first gray scale value corresponding to a first type of row signal; compensating the first gray scale value based on a pre-constructed gray scale mapping table to obtain a compensation signal; inputting the compensation signal into a liquid crystal panel for display to compensate the display quality of the liquid crystal panel; the construction method of the gray scale mapping table comprises: obtaining a first luminance value corresponding to a first type of row of the display panel when displaying a first type of test pattern; obtaining a second luminance value corresponding to a second type of row of the display panel when displaying a second type of test pattern; wherein the first type of test pattern has a plurality of, the gray scale values of the second type of row of the plurality of first type of test pattern are constant, and the gray scale values of the first type of row of the plurality of first type of test pattern are in an arithmetic progression; the second type of test pattern has a plurality of, the gray scale values of the first type of row of the plurality of second type of test pattern are constant, and the gray scale values of the second type of row of the plurality of second type of test pattern are in an arithmetic progression.

2. The display compensation method of claim 1, wherein, The construction method of the gray scale mapping table further comprises: drawing a gray scale-luminance curve based on the first gray scale value corresponding to the first luminance value in the first type of row and the second gray scale value corresponding to the second luminance value in the second type of row; constructing a gray scale mapping table based on the gray scale-luminance curve; wherein the gray scale mapping table is configured to represent the gray scale values corresponding to the first type of row and the second type of row under the same luminance value.

3. The display compensation method of claim 2, wherein, The method of compensating the first gray scale value based on the pre-constructed gray scale mapping table to obtain a compensation signal comprises: taking the second luminance value as a target luminance, and calculating a third gray scale value corresponding to the first type of row when emitting the second luminance value; adding the difference between the third gray scale value and the first gray scale value to the first gray scale value to obtain the compensation signal.

4. A display panel, characterized by, The display panel adopts the display compensation method of any one of claims 1 to 3 for display, and the display panel comprises: a liquid crystal panel; a timing controller configured to generate a data signal; a compensation module connected with the timing controller and the liquid crystal panel respectively, the compensation module is configured to compensate a first type of row signal of the data signal to obtain a compensation signal; wherein the compensation signal is configured to compensate the display quality of the liquid crystal panel.

5. The display panel of claim 4, wherein, The compensation module comprises a splitting unit configured to receive the data signal and split the data signal into odd rows and even rows to obtain a first type of row signal.

6. The display panel of claim 5, wherein, The compensation module further comprises a gray scale mapping table connected with the splitting unit, the gray scale mapping table is configured to represent the gray scale value of the first type of row signal and the compensation value corresponding to the gray scale value.

7. The display panel of claim 6, wherein, The compensation module further comprises a modification unit connected with the splitting unit and the gray scale mapping table, the modification unit is configured to modify the gray scale value of the first type of row signal based on the compensation value to obtain the compensation signal.

8. The display panel of any one of claims 4 to 7, wherein, The display panel further comprises a source driver connected with the compensation module and the liquid crystal panel; The source driver is configured to convert the compensation signal into a voltage signal configured to be input to the liquid crystal panel to drive the liquid crystal panel to display a picture.

9. A display device, characterized by The display device adopts the display compensation method according to any one of claims 1 to 3 to display, or the display device comprises the display panel according to any one of claims 4 to 8.

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