Display device, compensation system for display device, and compensation value determination method

Abstract

A display device, a compensation system thereof and a compensation value determination method, the display device comprising a display panel (11), a first control component (12) and a memory (13), the memory (13) storing target compensation values of a plurality of sub-pixels in a second display area (q2), the target compensation values of the plurality of sub-pixels being compensation values corresponding to a target circuit structure (112), and the first control component (12) can compensate a plurality of sub-pixels in the second display area (q2) based on the target compensation value, so that the difference between the brightness of the plurality of sub-pixels and the brightness of the sub-pixels in the first display area (q1) conforms to the target brightness data. In this way, the problem that the display effect of the display device is poor due to the fact that the difference between the brightness of the sub-pixels in the second display area (q2) and the brightness of the sub-pixels in the first display area (q1) is large in the prior art can be solved. And the display effect of the display device is improved.

Description

Display device, compensation system for display device, and compensation value determination method Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device, a compensation system for a display device, and a method for determining a compensation value. Background Art

[0002] A display device is a device that can realize a display function.

[0003] A display device includes a display panel having an under-screen camera area and a conventional display area located outside the under-screen camera area. The under-screen camera area (Full Display with Camera, FDC) can be light-transmissive. Furthermore, a camera can be disposed on the back of the display panel at a position corresponding to the under-screen camera area to implement the under-screen camera function. Some circuit structures in the under-screen camera area can be disposed in the conventional display area to improve the light transmittance of the under-screen camera area.

[0004] However, due to the special circuit structure in the under-screen camera area, there is a large difference in brightness between the under-screen camera area and the conventional display area, which leads to a poor display effect of the display device.

[0005] Summary of the Invention

[0006] The present invention provides a display device, a compensation system for the display device, and a compensation value determination method. The technical solution is as follows:

[0007] According to one aspect of an embodiment of the present application, a display device is provided, comprising a display panel, a first control component, and a memory. The display panel comprises a substrate, a target circuit structure located on the substrate, and a plurality of light-emitting units. The substrate has a second display area and a first display area located outside the second display area. The plurality of light-emitting units are located in the second display area and the first display area. The target circuit structure is electrically connected to the plurality of light-emitting units.

[0008] The memory stores target compensation values ​​of a plurality of sub-pixels in the second display area, where the target compensation values ​​of the plurality of sub-pixels are compensation values ​​corresponding to the target circuit structure;

[0009] The first control component is configured to obtain target compensation values ​​of the plurality of sub-pixels from the memory, and compensate the plurality of sub-pixels based on the compensation values ​​of the plurality of sub-pixels;

[0010] Among them, the target compensation values ​​of the multiple sub-pixels include the target compensation values ​​of the multiple sub-pixels at a first specified brightness, and the target compensation values ​​at the first specified brightness are used to make the brightness difference between the multiple sub-pixels and the brightness of the sub-pixels in the first display area conform to the target brightness data when compensating the multiple sub-pixels.

[0011] Optionally, the memory further stores at least one conversion coefficient;

[0012] The first control component is used to obtain the at least one conversion coefficient from the memory, and determine the target compensation values ​​of the multiple sub-pixels at at least one other specified brightness other than the first specified brightness based on the at least one conversion coefficient and the target compensation values ​​of the multiple sub-pixels at the first specified brightness.

[0013] Optionally, the memory stores 7 conversion coefficients;

[0014] The first control component is used to obtain the 7 conversion coefficients from the memory, and determine the target compensation values ​​of the multiple sub-pixels at seven other specified brightnesses except the first specified brightness based on the 7 conversion coefficients and the target compensation values ​​of the multiple sub-pixels at the first specified brightness, wherein the first specified brightness and the seven specified brightnesses are uniformly distributed within the brightness range of the display panel.

[0015] Optionally, the target compensation values ​​of the plurality of sub-pixels are compensation values ​​corresponding to display devices of the same manufacturing batch having the target circuit structure.

[0016] According to another aspect of an embodiment of the present application, a compensation system for a display device is provided, the compensation system including a display device and a compensation device;

[0017] The display device includes a display panel, a first control component, and a memory. The display panel includes a substrate, a target circuit structure, and a plurality of light-emitting units located on the substrate. The substrate has a second display area and a first display area located outside the second display area. The plurality of light-emitting units are located in the second display area and the first display area. The target circuit structure is electrically connected to the plurality of light-emitting units.

[0018] The compensation device is used for:

[0019] Acquire temporary compensation values ​​of a plurality of sub-pixels in the second display area at a first specified brightness based on a compensation value determination process;

[0020] adding the temporary compensation values ​​of the plurality of sub-pixels to the pending compensation values ​​of the plurality of sub-pixels;

[0021] Compensating the plurality of sub-pixels using the undetermined compensation values ​​of the plurality of sub-pixels;

[0022] determining whether a brightness difference between the second display area and the first display area meets target brightness data;

[0023] When the target brightness data is not met, performing the step of obtaining temporary compensation values ​​of the plurality of sub-pixels in the second display area at the first specified brightness based on the compensation value determination process;

[0024] When the target brightness data is met, determining the undetermined compensation values ​​of the plurality of sub-pixels as the target compensation values ​​of the plurality of sub-pixels at the first specified brightness;

[0025] storing the target compensation values ​​of the plurality of sub-pixels at the first specified brightness in a memory of the display device;

[0026] The compensation value determination process includes:

[0027] Compensating the plurality of sub-pixels with the undetermined compensation values ​​of the plurality of sub-pixels, and controlling the display panel to display image data of the first specified brightness;

[0028] Acquire brightness parameters of a plurality of sub-pixels in the second display area and a brightness parameter of the first display area;

[0029] The temporary compensation value is determined based on a difference between the brightness parameters of the plurality of sub-pixels and the brightness parameter of the first display area.

[0030] Optionally, the compensation device includes a second control component and an image acquisition component;

[0031] The image acquisition component is used for:

[0032] When the display panel displays the image data of the first specified brightness, collecting images of the plurality of sub-pixels in the second display area and collecting an image of the first display area;

[0033] The second control component is used to:

[0034] determining brightness parameters of the plurality of sub-pixels based on images of the plurality of sub-pixels in the second display area;

[0035] A brightness parameter of the first display area is determined based on the image of the first display area.

[0036] Optionally, the image acquisition component is used to:

[0037] When the display panel displays the image data of the first designated brightness, an image including the second display area and at least a portion of the first display area surrounding the second display area is captured.

[0038] Optionally, the second control component is used to:

[0039] determining a mean brightness value of the first display area based on the image of the first display area;

[0040] A brightness parameter of the first display area is determined based on the brightness mean.

[0041] Optionally, the compensation device is used to:

[0042] Obtaining conversion coefficients between target compensation values ​​of the plurality of sub-pixels at the first specified brightness and at least one other target compensation value, where the other target compensation value is a target compensation value of the plurality of sub-pixels at a specified brightness other than the first specified brightness;

[0043] The conversion coefficient is stored in a memory of the display device.

[0044] Optionally, the second control component is used to:

[0045] The temporary compensation value is determined according to a preset formula, wherein the preset formula includes:

[0046] Wherein, the pD1 is the temporary compensation value of the first sub-pixel among the plurality of sub-pixels, and the lv1 t is the brightness parameter of the first display area, the lv1 p is the brightness parameter of the first sub-pixel, and g is the gamma value of the display device.

[0047] Optionally, the plurality of light emitting units include at least a blue light emitting unit for emitting blue light, a green light emitting unit for emitting green light, and a red light emitting unit for emitting red light;

[0048] The target compensation value includes a blue light compensation value of the blue light emitting unit, a green light compensation value of the green light emitting unit, and a red light compensation value of the red light emitting unit.

[0049] According to another aspect of an embodiment of the present application, a compensation value determination method is provided for a compensation system for a display device. The compensation system includes a display device and a compensation device, the compensation device being configured to compensate the display device. The display device includes a display panel, a first control component, and a memory. The display panel includes a substrate, a target circuit structure located on the substrate, and a plurality of light-emitting units. The substrate has a second display area and a first display area located outside the second display area. The plurality of light-emitting units are located in the second display area and the first display area. The target circuit structure is electrically connected to the plurality of light-emitting units.

[0050] The method comprises:

[0051] Acquire temporary compensation values ​​of a plurality of sub-pixels in the second display area at a first specified brightness based on a compensation value determination process;

[0052] adding the temporary compensation values ​​of the plurality of sub-pixels to the pending compensation values ​​of the plurality of sub-pixels;

[0053] Compensating the plurality of sub-pixels using the undetermined compensation values ​​of the plurality of sub-pixels;

[0054] determining whether a brightness difference between the second display area and the first display area meets target brightness data;

[0055] When the target brightness data is not met, performing the step of obtaining temporary compensation values ​​of the plurality of sub-pixels in the second display area at the first specified brightness based on the compensation value determination process;

[0056] When the target brightness data is met, determining the undetermined compensation values ​​of the plurality of sub-pixels as the target compensation values ​​of the plurality of sub-pixels at the first specified brightness;

[0057] The compensation value determination process includes:

[0058] Compensating the plurality of sub-pixels with the undetermined compensation values ​​of the plurality of sub-pixels, and controlling the display panel to display image data of the first specified brightness;

[0059] Acquire brightness parameters of a plurality of sub-pixels in the second display area and a brightness parameter of the first display area;

[0060] The temporary compensation value is determined based on a difference between the brightness parameters of the plurality of sub-pixels and the brightness parameter of the first display area.

[0061] Optionally, obtaining brightness parameters of a plurality of sub-pixels in the second display area and a brightness parameter of the first display area includes:

[0062] When the display panel displays the image data of the first specified brightness, collecting images of the plurality of sub-pixels in the second display area and collecting an image of the first display area;

[0063] determining brightness parameters of the plurality of sub-pixels based on images of the plurality of sub-pixels in the second display area;

[0064] A brightness parameter of the first display area is determined based on the image of the first display area.

[0065] Optionally, the method further includes:

[0066] Obtaining conversion coefficients between target compensation values ​​of the plurality of sub-pixels at the first specified brightness and at least one other target compensation value, where the other target compensation value is a target compensation value of the plurality of sub-pixels at a specified brightness other than the first specified brightness;

[0067] The conversion coefficient is stored in a memory of the display device.

[0068] Optionally, determining the temporary compensation value based on a difference between the brightness parameters of the plurality of sub-pixels and the brightness parameter of the first display area includes:

[0069] The temporary compensation value is determined according to a preset formula, wherein the preset formula includes:

[0070] Wherein, the pD1 is the temporary compensation value of the first sub-pixel among the plurality of sub-pixels, and the lv1 t is the brightness parameter of the first display area, the lv1 p is the brightness parameter of the first sub-pixel, and g is the gamma value of the display device.

[0071] A computer program product or computer program is provided. The computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the compensation value determination method provided in the various optional implementations described above.

[0072] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0073] By storing target compensation values ​​for multiple sub-pixels in the second display area in the memory of the display device, the target compensation values ​​for the multiple sub-pixels are compensation values ​​corresponding to the target circuit structure. Then, the first controller can compensate the multiple sub-pixels in the second display area based on the target compensation values ​​so that the difference in brightness between the multiple sub-pixels and the sub-pixels in the first display area conforms to the target brightness data. This solves the problem in the related art that the brightness of the sub-pixels in the second display area differs significantly from the brightness of the sub-pixels in the first display area, resulting in poor display quality of the display device. The display quality of the display device is improved.

[0074] In addition, since the brightness difference is caused by some circuit structures corresponding to the second display area, the target compensation value stored in the memory can be applicable to display devices with the same circuit structure, and there is no need to determine the target compensation value separately for each display device, which reduces the debugging difficulty of the display device and improves the production speed of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0076] FIG1 is a schematic structural diagram of a display device provided in an embodiment of the present application;

[0077] FIG2 is a schematic diagram of an enlarged structure of a partial area of ​​a display panel in the display device shown in FIG1 ;

[0078] 3 is a circuit diagram showing connections between a light-emitting unit and a pixel circuit in a second display area of ​​the display panel shown in FIG2 ;

[0079] FIG4 is a schematic diagram showing that the brightness of a light-emitting unit in a second display area of ​​a display panel is affected by adjacent pixels;

[0080] FIG5 is a structural block diagram of a compensation system for a display device provided in an embodiment of the present application;

[0081] FIG6 is a flow chart of a method for determining a compensation value provided by an embodiment of the present application;

[0082] FIG7 is a schematic diagram showing a flow chart of a compensation value determination process in the embodiment shown in FIG6 ;

[0083] FIG8 is a flow chart of another method for determining a compensation value provided by an embodiment of the present application;

[0084] FIG9 is a schematic diagram of a compensation effect of a brightness curve in the method provided in an embodiment of the present application;

[0085] FIG10 is a schematic diagram of a compensation effect in the method provided in the embodiment of the application.

[0086] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0087] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0088] Figure 1 is a structural schematic diagram of a display device provided in an embodiment of the present application, and Figure 2 is an enlarged structural schematic diagram of a partial area of ​​the display panel in the display device shown in Figure 1 (Figure 2 may be an enlarged structural schematic diagram of area s1 in Figure 1). Please refer to Figures 1 and 2. The display device includes a display panel 11, a first control component 12 and a memory 13. The display panel 11 includes a substrate 111 and a target circuit structure 112 located on the substrate 111 and a plurality of light-emitting units e1. The substrate 111 has a second display area q1 and a first display area q2 located outside the second display area q1. The plurality of light-emitting units e1 are located in the second display area q1 and the first display area q2. The target circuit structure 112 is electrically connected to the plurality of light-emitting units e1.

[0089] The memory 13 stores target compensation values ​​of a plurality of sub-pixels in the second display area q1 , where the target compensation values ​​of the plurality of sub-pixels are compensation values ​​corresponding to the target circuit structure 112 .

[0090] The first control component 12 is used to obtain target compensation values ​​of the multiple sub-pixels from the memory 13, and compensate the multiple sub-pixels based on the compensation values ​​of the multiple sub-pixels.

[0091] Among them, the target compensation values ​​of multiple sub-pixels include target compensation values ​​of multiple sub-pixels at a first specified brightness. The target compensation values ​​at the first specified brightness are used to make the brightness difference between the multiple sub-pixels and the brightness of the sub-pixels in the first display area conform to the target brightness data when compensating the multiple sub-pixels.

[0092] In summary, the display device provided by the embodiment of the present application stores target compensation values ​​for multiple sub-pixels in the second display area in the memory of the display device. The target compensation values ​​for the multiple sub-pixels are compensation values ​​corresponding to the target circuit structure. Then, the first controller can compensate the multiple sub-pixels in the second display area based on the target compensation values ​​so that the difference in brightness between the multiple sub-pixels and the sub-pixels in the first display area conforms to the target brightness data. This solves the problem in the related art that the brightness difference between the sub-pixels in the second display area and the sub-pixels in the first display area is large, resulting in poor display effect of the display device. The display effect of the display device is improved.

[0093] Furthermore, the compensation schemes used in related arts compensate for display differences caused by individual differences between display devices, resulting in compensation values ​​that are not universal across different display devices. In contrast, in the display device provided in the embodiments of the present application, the brightness differences compensated for in the second display area are caused by certain circuit structures corresponding to the second display area. Therefore, the target compensation values ​​stored in the memory can be applied to display devices with the same target circuit structure. This eliminates the need to determine target compensation values ​​for each display device, reducing the difficulty of debugging the display device and increasing the speed of display device production.

[0094] It should be noted that the display panel may include a plurality of sub-pixels arranged in an array, each sub-pixel may include a light-emitting unit and a pixel circuit electrically connected to the light-emitting unit, and the first control component 12 may compensate the sub-pixel based on the target compensation value to adjust the brightness of the light-emitting unit in the sub-pixel.

[0095] In addition, the target circuit structure 112 may refer to a portion or all of the circuits included in the display panel 11 , and the target circuit structure 112 may include a pixel circuit e2 of each sub-pixel.

[0096] For display panels that utilize under-screen camera technology, to improve the transmittance of the second display area, the pixel circuits of the sub-pixels in the second display area can be placed in the first display area, and the pixel circuits and light-emitting units can be connected via wiring. Figure 3 is a circuit diagram illustrating the connection between the light-emitting unit and the pixel circuit in the second display area of ​​the display panel shown in Figure 2 , with reference to Figures 2 and 3 . Pixel circuit e2 may include structures such as a data line d, a gate g, a capacitor c, and a power line ELVDD. Light-emitting unit e1 is electrically connected to pixel circuit e2 via a connecting line e3. h1 represents the portion of connecting line e3 that is increased in length due to the placement of pixel circuit e2 in the first display area q2.

[0097] The applicant has found that this solution increases the length of the connection between the pixel circuit and the light-emitting unit, thereby causing a large difference in brightness between the light-emitting unit in the second display area and the light-emitting unit in the first display area.

[0098] In addition, the applicant discovered that the brightness of the light-emitting unit in the second display area is affected by the grayscale of its neighboring pixels. This phenomenon can be called the "neighborhood effect." Specifically, in the second display area, the brightness lvxy of sub-pixel xy can be calculated as:

[0099] Among them, lv xy is the actual brightness of the sub-pixel xy obtained by taking a photo, f xy (…) is the function of the grayscale of sub-pixel xy affecting its own brightness, g xy is the grayscale of sub-pixel xy, xy is the coordinate of sub-pixel xy, g p is the grayscale of the adjacent sub-pixel, h p (…) is the influence function of the neighboring sub-pixel p on the sub-pixel xy, and the h p The result of (...) is affected by the coordinates xy, g of the pixel xy p and g xy The influence of n is all adjacent pixels, Represents the sum of the influence functions of all adjacent sub-pixels p on sub-pixel xy.

[0100] This calculation formula reflects that the pixel xy is affected by its own grayscale and the grayscale of its adjacent pixels.

[0101] Please refer to Figure 4, which is a schematic diagram illustrating how the brightness of a light-emitting unit in the second display area of ​​a display panel is affected by adjacent pixels. Curve L1 shows the brightness curve of light-emitting unit 1 in the second display area when its own grayscale is 63, and curve L2 shows the brightness curve of light-emitting unit 1 in the second display area when its own grayscale is 47. The horizontal axis represents the grayscale values ​​of the adjacent light-emitting units of light-emitting unit 1, and the vertical axis represents the actual brightness of light-emitting unit 1, measured in nits. It can be seen that the grayscale values ​​of the adjacent light-emitting units of light-emitting unit 1 have a significant impact on the actual brightness of light-emitting unit 1.

[0102] One reason for this phenomenon is leakage between adjacent pixels. This causes the luminescence characteristics of pixels in the second display area to be significantly affected by the luminescence characteristics of adjacent pixels. The extent of this influence is difficult to measure and formulate. Therefore, it is difficult to directly eliminate this influence, making it difficult for conventional compensation methods to achieve the desired effect on image quality compensation in the second display area.

[0103] To address the above issues, an embodiment of the present application provides a display device that stores target compensation values ​​for multiple sub-pixels in a second display area in a memory of the display device. The target compensation values ​​for the multiple sub-pixels are compensation values ​​corresponding to the target circuit structure. Based on the target compensation values, a first controller can compensate the multiple sub-pixels in the second display area so that the difference in brightness between the multiple sub-pixels and the sub-pixels in the first display area conforms to the target brightness data. This solves the problem in the related art that the brightness difference between the sub-pixels in the second display area and the sub-pixels in the first display area is large, resulting in a poor display effect of the display device. The display effect of the display device is improved.

[0104] It should be noted that in the display device provided in the embodiment of the present application, the second display area in the display panel may be a display area with a light-transmitting function, and the display device may include one or more sensors, which may be arranged on the back side of the display panel (the display panel may have a display surface and a back side opposite to the display surface) at a position opposite to the second display area. The sensor may include an image sensor, an ambient light sensor, a distance sensor, and an infrared sensor, etc. Exemplarily, when the sensor includes an image sensor (such as a camera), the second display area may be an under-screen camera area.

[0105] In an exemplary embodiment, in the display device provided by the embodiment of the present application, the memory 13 further stores at least one conversion coefficient.

[0106] Please refer to Figure 1, the first control component 12 is used to obtain the at least one conversion coefficient from the memory 13, and based on the at least one conversion coefficient and the target compensation values ​​of the multiple sub-pixels at the first specified brightness, determine the target compensation values ​​of the multiple sub-pixels at at least one other specified brightness other than the first specified brightness.

[0107] In this way, the first control component 12 can obtain the target compensation values ​​of the multiple sub-pixels in the second display area at other specified brightnesses based on the target compensation values ​​of the multiple sub-pixels in the second display area at the first specified brightness and the conversion coefficient, and thus can compensate the multiple sub-pixels in the second display area at other specified brightnesses. In addition, the first specified brightness may not refer to the actual brightness of the sub-pixel, but rather to the ideal brightness of the sub-pixel, which is determined by the brightness of the image data corresponding to the sub-pixel. For example, the target compensation value at the first specified brightness can be used to compensate the sub-pixel when the brightness of the image data corresponding to the sub-pixel is the first specified brightness.

[0108] The second display area may have a large number of sub-pixels, and the target compensation value data for each of these sub-pixels may be relatively large. However, the conversion coefficient data is smaller than the sum of the target compensation values ​​for the multiple sub-pixels in the second display area at a given brightness. Furthermore, compared to the method of storing the target compensation values ​​for the multiple sub-pixels in the second display area, the method of storing the conversion coefficients provided in this embodiment of the present application can reduce the space occupied by the memory 13.

[0109] It should be noted that the multiple sub-pixels in the second display area involved in the embodiment of the present application may refer to some or all of the sub-pixels in the second display area.

[0110] In addition, due to the design of the circuit in the second display area, there may be a situation where the light-emitting unit is located in the second display area, but the corresponding pixel circuit is located in the first display area. In this case, it can be confirmed based on the position of the light-emitting unit whether the sub-pixel is a sub-pixel in the second display area or a sub-pixel in the first display area. That is, when the light-emitting unit in a sub-pixel is located in the second display area, then the sub-pixel is a sub-pixel in the second display area, and when the light-emitting unit in a sub-pixel is located in the first display area, then the sub-pixel is a sub-pixel in the first display area.

[0111] In addition, in the display device provided by the embodiment of the present application, the target compensation values ​​of the multiple sub-pixels stored in the memory 13 at the first specified brightness can also be used to compensate the pixel where each sub-pixel is located. Exemplarily, the second display area may include multiple pixels, each pixel includes multiple sub-pixels, for example, a blue sub-pixel for emitting blue light, a sub-pixel for emitting green light, and a sub-pixel for emitting red light. The target compensation values ​​of the multiple sub-pixels at the first specified brightness stored in the memory 13, each of which can belong to a different pixel, and the first control component can compensate each pixel based on the target compensation values ​​of the multiple sub-pixels at the first specified brightness. In this way, the space occupied by the memory 13 in the display device can be reduced.

[0112] Of course, the memory 13 can also store the target compensation value of each sub-pixel in the second display area at the first specified brightness, that is, sub-pixels of different colors in each pixel can have different target compensation values, so that sub-pixels of different colors can be compensated separately based on the difference in color, which can improve the compensation effect on the second display area and thus improve the display effect of the display device.

[0113] In an exemplary embodiment, seven conversion coefficients are stored in the memory 13 .

[0114] The first control component is used to obtain 7 conversion coefficients from the memory 13, and determine the target compensation values ​​of the multiple sub-pixels at seven other specified brightnesses except the first specified brightness based on the 7 conversion coefficients and the target compensation values ​​of the multiple sub-pixels at the first specified brightness, where the first specified brightness and the seven specified brightnesses are evenly distributed within the brightness range of the display panel.

[0115] This scheme is a specific compensation scheme. The first control component can obtain the target compensation values ​​of multiple sub-pixels in the second display area at seven specified brightnesses based on 7 conversion coefficients and the target compensation values ​​of multiple sub-pixels at the first specified brightness. Adding the target compensation values ​​at the first specified brightness, the target compensation values ​​at 8 specified brightnesses are obtained, and these 8 specified brightnesses can be evenly distributed within the brightness range of the display panel. In this way, the compensation effect for the second display area can be guaranteed while reducing the space occupied by the target compensation value in the memory.

[0116] For example, when the brightness is represented by grayscale values, the brightness range of the display panel can be 0 to 255, the grayscale value is 0 for the darkest, and the grayscale value is 255 for the brightest, then the 8 specified brightnesses can be 8 specified brightnesses evenly distributed between 0 and 255, for example, a grayscale value can be determined as a specified brightness for every 32 grayscales.

[0117] In an exemplary embodiment, the target compensation values ​​at the eight specified brightness levels may correspond to eight sub-ranges in the brightness range of the display panel, respectively. These eight sub-ranges may be eight sub-ranges equally divided from 0-255. For example, these eight sub-ranges may include eight sub-ranges of 0-31, 32-63, 64-95, 96-127, 128-159, 160-191, 192-223, and 224-255. The eight specified brightness levels may be grayscale values ​​within these eight sub-ranges, and the specified brightness levels correspond to the sub-ranges in which they are located. In one example, when the grayscale value of a first sub-pixel (the first sub-pixel may be any sub-pixel in the second display area) is a first grayscale value (the first grayscale value may be determined by the image data to be displayed), the first control component may determine the sub-range to which the first grayscale value belongs, and compensate the first sub-pixel based on the target compensation value corresponding to the sub-range to which the first grayscale value belongs.

[0118] Alternatively, while the circuit structures of display devices manufactured in different batches may be the same, other factors may result in differences in the compensation effects of the same compensation value on sub-pixels in the second display area of ​​display devices manufactured in different batches. Consequently, the target compensation values ​​for the multiple sub-pixels stored in the memory 13 are compensation values ​​corresponding to display devices manufactured in the same batch with the target circuit structure. In other words, the same target compensation value (the compensation value here may include the target compensation value for each sub-pixel in the second display area at multiple specified brightness levels) may be stored in the memory for display devices manufactured in the same batch.

[0119] In summary, the display device provided by the embodiment of the present application stores target compensation values ​​for multiple sub-pixels in the second display area in the memory of the display device. The target compensation values ​​for the multiple sub-pixels are compensation values ​​corresponding to the target circuit structure. Then, the first controller can compensate the multiple sub-pixels in the second display area based on the target compensation values ​​so that the difference in brightness between the multiple sub-pixels and the sub-pixels in the first display area conforms to the target brightness data. This solves the problem in the related art that the brightness difference between the sub-pixels in the second display area and the sub-pixels in the first display area is large, resulting in poor display effect of the display device. The display effect of the display device is improved.

[0120] FIG5 is a structural block diagram of a compensation system for a display device provided in an embodiment of the present application. The compensation system includes a display device 10 and a compensation device 20 .

[0121] The display device 10 may be any display device provided in the above embodiments, and the display device 10 may be electrically connected to the compensation device 20 .

[0122] The compensation device 20 is used for:

[0123] 4.1) Obtaining temporary compensation values ​​of the plurality of sub-pixels in the second display area at the first specified brightness based on the compensation value determination process.

[0124] 4.2) Adding the temporary compensation values ​​of the plurality of sub-pixels to the pending compensation values ​​of the plurality of sub-pixels.

[0125] If no temporary compensation value has been added to the pending compensation value, the pending compensation value is equal to the temporary compensation value added this time. If the pending compensation value also contains any temporary compensation value added before this time (here, "times" can refer to the number of times the loop from 4.1 to 4.6 is executed), the pending compensation value can be equal to the sum of the temporary compensation value added this time and the temporary compensation values ​​previously added to the pending compensation value. For example, if the current temporary compensation value is 1 and the pending compensation value also includes the temporary compensation value 2 previously added to the pending compensation value, then after the current temporary compensation value is added to the pending compensation value, the pending compensation value is 3.

[0126] 4.3) Compensating the multiple sub-pixels using the undetermined compensation values ​​of the multiple sub-pixels.

[0127] Optionally, the supplementing device 20 may notify the display device 10, and the first control component in the display device 10 may compensate the multiple sub-pixels with the to-be-determined compensation values ​​of the multiple sub-pixels.

[0128] 4.4) Determine whether the brightness difference between the second display area and the first display area meets the target brightness data.

[0129] After compensating multiple sub-pixels with their pending compensation values, the display panel can display image data of a first specified brightness. The compensation device 20 can capture an image of the second display area and an image of the first display area, and determine whether the brightness difference between the second display area and the first display area meets the target brightness data based on the captured image.

[0130] Optionally, the target brightness data can be used to measure the difference between the overall brightness of the second display area and the brightness of the first display area. For example, the target brightness data may include a brightness difference threshold. The compensation device 20 can obtain the absolute value of the difference between the brightness value of each sub-pixel in the second display area and the brightness value of the first display area, and obtain the average of the absolute values ​​of all sub-pixels in the second display area. The average can be a comprehensive difference. If the comprehensive difference is less than the brightness difference threshold, it can be confirmed that the brightness difference meets the target brightness data. If the comprehensive difference is not less than the brightness difference threshold, it can be confirmed that the brightness difference does not meet the target brightness data.

[0131] Of course, other methods may also be used to determine whether the brightness difference conforms to the target brightness data, and the embodiments of the present application are not limited thereto.

[0132] 4.5) When the target brightness data is not met, a step of obtaining temporary compensation values ​​for the plurality of sub-pixels in the second display area at the first specified brightness based on the compensation value determination process is performed.

[0133] That is, the above step 4.1 can be executed again when the target brightness data is not met.

[0134] 4.6) When the target brightness data is met, the undetermined compensation values ​​of the plurality of sub-pixels are determined as the target compensation values ​​of the plurality of sub-pixels at the first specified brightness.

[0135] 4.7) Storing the target compensation values ​​of the plurality of sub-pixels at the first designated brightness in a memory of the display device.

[0136] The compensation value determination process includes:

[0137] 4.11) Compensating the plurality of sub-pixels with the undetermined compensation values ​​of the plurality of sub-pixels, and controlling the display panel to display image data of a first specified brightness.

[0138] When this is the first time that the compensation value is determined through the compensation value determination process, the to-be-determined compensation value may include a preset initial value.

[0139] 4.12) Obtain brightness parameters of multiple sub-pixels in the second display area and brightness parameters of the first display area.

[0140] 4.13) Determining a temporary compensation value based on a difference between the brightness parameters of the plurality of sub-pixels and the brightness parameter of the first display area.

[0141] The above steps 4.1 to 4.4 can be a compensation value determination cycle. Each time a cycle is passed, the compensation effect of the pending compensation value can be improved. When the above brightness difference meets the target brightness data, the cycle can be stopped and the pending compensation value can be determined as the target compensation value of multiple sub-pixels at the first specified brightness.

[0142] In summary, the compensation system for a display device provided in an embodiment of the present application stores target compensation values ​​for multiple sub-pixels in the second display area in the memory of the display device. The target compensation values ​​for the multiple sub-pixels are compensation values ​​corresponding to the target circuit structure. Then, the first controller can compensate the multiple sub-pixels in the second display area based on the target compensation values ​​so that the difference in brightness between the multiple sub-pixels and the sub-pixels in the first display area conforms to the target brightness data. This solves the problem in the related art that the brightness difference between the sub-pixels in the second display area and the sub-pixels in the first display area is large, resulting in a poor display effect of the display device. The display effect of the display device is improved.

[0143] Optionally, the compensation device 20 includes a second control component 21 and an image acquisition component 22 .

[0144] The image acquisition component 22 is used for:

[0145] When the display panel 11 displays image data of a first specified brightness, images of a plurality of sub-pixels in the second display area q1 are collected, and an image of the first display area q2 is collected.

[0146] The image acquisition component 22 may include a camera, which can photograph the second display area q1 to acquire images of multiple sub-pixels in the second display area q1 and photograph the first display area q2 to acquire an image of the first display area q2.

[0147] The second control component 21 is used to:

[0148] 5.1) Determine brightness parameters of the plurality of sub-pixels based on the images of the plurality of sub-pixels in the second display area q1.

[0149] The brightness parameters of the plurality of sub-pixels may include a brightness parameter of each sub-pixel in the plurality of sub-pixels in the second display area q1. The brightness parameter may be a parameter used to reflect the brightness of the sub-pixel, for example, the brightness parameter may be the product of a brightness value in nits and a preset parameter.

[0150] 5.2) Determine a brightness parameter of the first display area based on the image of the first display area.

[0151] The brightness parameter of the first display area may be an average value of brightness parameters of a plurality of sub-pixels in the first display area.

[0152] Optionally, the image acquisition component 22 is used to:

[0153] When the display panel 11 displays image data of the first specified brightness, an image including the second display area q1 and at least a portion of the first display area q2 surrounding the second display area q1 (exemplarily, the width of the annular first display area q2 surrounding the second display area q1 can be 15 pixels) is captured.

[0154] Specifically, the camera of the image acquisition component 22 can be aimed at the second display area q1, and the range of the picture captured by the camera can be adjusted (such as by adjusting the focal length of the camera, or adjusting the distance between the camera and the display panel) so that the picture includes the second display area q1 and the part of the first display area q2 surrounding the second display area q1. In this way, the images of the second display area q1 and the first display area q2 can be obtained at the same time through one shot, which can speed up the implementation efficiency of the solution.

[0155] Optionally, the second control component 21 is used to:

[0156] 6.1) Based on the image of the first display area, determine the average brightness of the first display area.

[0157] The brightness mean may be an arithmetic mean, a geometric mean, a square mean, etc. of the brightness, which is not limited in the embodiment of the present application.

[0158] 6.2) Determine the brightness parameter of the first display area based on the brightness mean.

[0159] The second control component 21 may determine the product of the brightness mean value and the preset parameter as the brightness parameter of the first display area.

[0160] Optionally, the compensation device 20 is used to:

[0161] 7.1) Obtaining conversion coefficients between target compensation values ​​of multiple sub-pixels at a first specified brightness and at least one other target compensation value, where the other target compensation value is the target compensation value of multiple sub-pixels at a specified brightness other than the first specified brightness.

[0162] The compensation device can obtain at least one other target compensation value based on the above-mentioned method of obtaining the target compensation value under the first specified brightness, and determine the conversion coefficient between them based on the at least one other target compensation value and the target compensation values ​​of multiple sub-pixels under the above-mentioned first specified brightness, so as to reduce the storage space occupied by the memory in the display device.

[0163] 7.2) Store the conversion coefficients in the memory of the display device.

[0164] Optionally, the second control component 21 is used to:

[0165] The temporary compensation value is determined according to a preset formula, which includes:

[0166] Wherein, pD1 is the temporary compensation value of the first sub-pixel among the multiple sub-pixels, lv1 t is the brightness parameter of the first display area, lv1 p is the brightness parameter of the first sub-pixel, and g is the gamma value of the display device. The gamma value can be a parameter of the display device, for example, 2.2. The brightness parameter can be a parameter used to reflect the brightness of the sub-pixel, for example, the brightness parameter can be the product of the brightness value in nits and a preset parameter.

[0167] Optionally, the plurality of light emitting units include at least a blue light emitting unit for emitting blue light, a green light emitting unit for emitting green light, and a red light emitting unit for emitting red light.

[0168] The target compensation values ​​include the blue light compensation value of the blue light emitting unit, the green light compensation value of the green light emitting unit, and the red light compensation value of the red light emitting unit. In this way, by compensating the red, green, and blue light emitting units separately, the compensation effect can be improved, thereby improving the display effect of the display device.

[0169] In summary, the compensation system for a display device provided in an embodiment of the present application stores target compensation values ​​for multiple sub-pixels in the second display area in the memory of the display device. The target compensation values ​​for the multiple sub-pixels are compensation values ​​corresponding to the target circuit structure. Then, the first controller can compensate the multiple sub-pixels in the second display area based on the target compensation values ​​so that the difference in brightness between the multiple sub-pixels and the sub-pixels in the first display area conforms to the target brightness data. This solves the problem in the related art that the brightness difference between the sub-pixels in the second display area and the sub-pixels in the first display area is large, resulting in a poor display effect of the display device. The display effect of the display device is improved.

[0170] The following are method embodiments of the present application. For matters not described in the method embodiments, reference may be made to the above-mentioned device embodiments of the present application. Correspondingly, for matters not described in the above-mentioned device embodiments, reference may also be made to the following method embodiments.

[0171] FIG6 is a flow chart of a method for determining a compensation value provided in an embodiment of the present application. The method can be used in the compensation system of the display device provided in the above embodiment. The method may include the following steps:

[0172] Step 601 : Obtain temporary compensation values ​​of a plurality of sub-pixels in a second display area at a first specified brightness based on a compensation value determination process.

[0173] Step 602: Add the temporary compensation values ​​of the plurality of sub-pixels to the pending compensation values ​​of the plurality of sub-pixels.

[0174] Step 603: Compensate the multiple sub-pixels using the undetermined compensation values ​​of the multiple sub-pixels.

[0175] Step 604: Determine whether the brightness difference between the second display area and the first display area meets the target brightness data. If it does not meet the target brightness data, execute step 601; if it meets the target brightness data, execute step 605.

[0176] Step 605: Determine the pending compensation values ​​of the multiple sub-pixels as target compensation values ​​of the multiple sub-pixels at the first specified brightness.

[0177] Please refer to FIG7 , which shows a schematic diagram of a compensation value determination process in the embodiment shown in FIG6 , wherein the compensation value determination process includes:

[0178] Step 6011: Control the display panel to display image data of a first specified brightness.

[0179] Step 6012: Obtain brightness parameters of multiple sub-pixels in the second display area and brightness parameters of the first display area.

[0180] Step 6013: Determine a temporary compensation value based on the difference between the brightness parameters of the plurality of sub-pixels and the brightness parameter of the first display area.

[0181] In summary, the compensation value determination method for a display device provided in the embodiments of the present application improves the compensation effect of the compensation value on multiple sub-pixels in the second display area by repeatedly determining the compensation value. This allows the determined target compensation value to ensure that the brightness difference between the second display area and the first display area meets the target brightness data. This solves the problem in the related art of the large difference in brightness between the sub-pixels in the second display area and the sub-pixels in the first display area, resulting in poor display quality of the display device. This improves the display quality of the display device.

[0182] FIG8 is a flow chart of another method for determining a compensation value provided by an embodiment of the present application. This method can be used in the compensation system of the display device provided by the above embodiment. The method may include the following steps:

[0183] Step 701 : Obtain temporary compensation values ​​of a plurality of sub-pixels in a second display area at a first specified brightness based on a compensation value determination process.

[0184] When applying the method provided in an embodiment of the present application, a compensation device in a compensation system of a display device may obtain, based on a compensation value determination process, temporary compensation values ​​for a plurality of sub-pixels in a second display area at a first specified brightness. The first specified brightness may be a preset brightness within a brightness range of a display panel of the display device.

[0185] The compensation value determination process may include:

[0186] 8.1) Controlling the display panel to display image data of a first specified brightness.

[0187] The first control component in the display device can control the display panel to display image data of a first specified brightness. For example, the display panel can be controlled to display a pure color image of the first specified brightness.

[0188] 8.2) Obtain brightness parameters of multiple sub-pixels in the second display area and brightness parameters of the first display area.

[0189] The compensation device can obtain the brightness parameters of the plurality of sub-pixels in the second display area and the brightness parameters of the first display area when the display panel displays image data of the first specified brightness.

[0190] In an exemplary embodiment, 8.2) may include:

[0191] 8.21) When the display panel displays image data of a first specified brightness, images of multiple sub-pixels in the second display area are captured, and images of the first display area are captured.

[0192] The compensation device can use an image acquisition component to capture images of multiple sub-pixels in the second display area, and also capture an image of the first display area. For example, the compensation device can aim the camera of the image acquisition component at the second display area and adjust the range of the image captured by the camera so that the image includes the second display area and the portion of the first display area surrounding the second display area. This allows the device to capture images of both the second display area and the first display area in a single shot, thereby improving the efficiency of the implementation of the solution.

[0193] 8.22) Determine brightness parameters of the plurality of sub-pixels based on the images of the plurality of sub-pixels in the second display area.

[0194] The brightness parameters of the plurality of sub-pixels may include a brightness parameter of each sub-pixel in the plurality of sub-pixels in the second display area. The brightness parameter may be a parameter used to reflect the brightness of the sub-pixel, for example, the brightness parameter may be the product of a brightness value in nits and a preset parameter.

[0195] 8.23) Determine a brightness parameter of the first display area based on the image of the first display area.

[0196] The brightness mean may be an arithmetic mean, a geometric mean, a square mean, etc. of the brightness, which is not limited in the embodiment of the present application.

[0197] 8.3) Determine a temporary compensation value based on a difference between the brightness parameters of the plurality of sub-pixels and the brightness parameter of the first display area.

[0198] The compensation device may determine a temporary compensation value based on a difference between the brightness parameters of the plurality of sub-pixels acquired in the above step and the brightness parameter of the first display area.

[0199] In an exemplary embodiment, the second control component in the compensation device may determine the temporary compensation value according to a preset formula, where the preset formula includes:

[0200] Wherein, pD1 is the temporary compensation value of the first sub-pixel among the multiple sub-pixels, lv1 t is the brightness parameter of the first display area, lv1 pis the brightness parameter of the first sub-pixel, and g is the gamma value of the display device. The gamma value can be a parameter of the display device, for example, 2.2. The brightness parameter can be a parameter used to reflect the brightness of the sub-pixel, for example, the brightness parameter can be the product of the brightness value in nits and a preset parameter.

[0201] Step 702: Add the temporary compensation values ​​of the plurality of sub-pixels to the pending compensation values ​​of the plurality of sub-pixels.

[0202] The compensation device (which may be a second control component in the compensation device) can add the temporary compensation values ​​of the multiple sub-pixels to the pending compensation values ​​of the multiple sub-pixels. Wherein, when no temporary compensation value has been added to the pending compensation value, the pending compensation value is equal to the temporary compensation value added this time (here, "times" can refer to the number of times the loop of steps 701 to 704 is executed). When the pending compensation value also contains any temporary compensation value added before this time, the pending compensation value can be equal to the sum of the temporary compensation value added this time and the temporary compensation values ​​added to the pending compensation value in all previous times. For example, the temporary compensation value determined this time is 1, and the pending compensation value also includes the temporary compensation value 2 added to the pending compensation value last time, then after the temporary compensation value of this time is added to the pending compensation value, the pending compensation value is 3.

[0203] Step 703: Compensate the multiple sub-pixels using the undetermined compensation values ​​of the multiple sub-pixels.

[0204] The compensation device (which may be the second control component in the compensation device) may control the first control component in the display device to compensate the multiple sub-pixels with the undetermined compensation values ​​of the multiple sub-pixels.

[0205] Step 704: Determine whether the brightness difference between the second display area and the first display area meets the target brightness data. If it does not meet the target brightness data, execute step 701; if it meets the target brightness data, execute step 705.

[0206] In step 704, the compensation device may perform the following operations:

[0207] 1) Controlling a display device so that a display panel in the display device displays image data of a first specified brightness.

[0208] For example, the second control component in the compensation device may send an instruction to the first control component in the display device, so that the first control component controls the display panel to display image data of a first specified brightness.

[0209] 2) The image data of the second display area and the image data of the first display area are collected by the image collection component in the compensation device.

[0210] The compensation device may recapture the image data of the first display area and the image data of the second display area compensated by the to-be-determined compensation value through the image acquisition component.

[0211] 3) Determining, by the second control component in the compensation device, whether the brightness difference between the second display area and the first display area meets the target brightness data based on the image data of the second display area and the image data of the first display area.

[0212] The target brightness data can be used to measure the difference between the overall brightness of the second display area and the brightness of the first display area. For example, the target brightness data may include a brightness difference threshold. The compensation device 20 can obtain the absolute value of the difference between the brightness value of each sub-pixel in the second display area and the brightness value of the first display area, and obtain the average of the absolute values ​​of all sub-pixels in the second display area. The average can be a comprehensive difference. If the comprehensive difference is less than the brightness difference threshold, it can be confirmed that the brightness difference meets the target brightness data. If the comprehensive difference is not less than the brightness difference threshold, it can be confirmed that the brightness difference does not meet the target brightness data.

[0213] Of course, other methods may also be used to determine whether the brightness difference conforms to the target brightness data, and the embodiments of the present application are not limited thereto.

[0214] When the target brightness data is not met, the supplementing device may re-execute step 701 and execute the next cycle. In this way, the compensation effect of the pending compensation value may be gradually improved by performing the cycle multiple times.

[0215] For example, please refer to Figure 9, which is a schematic diagram of the compensation effect of a brightness curve in the method provided in an embodiment of the present application. The horizontal axis represents the grayscale value, and the vertical axis represents the actual brightness value captured by the camera, in nits. Curve u1 represents the brightness curve of the first display area without compensation, and curve m1 represents the brightness curve of the second display area without compensation. This brightness curve can reflect the actual brightness at different grayscales.

[0216] After one cycle and compensation using the pending compensation value, the brightness curve of the first display area is u2, and the brightness curve of the second display area is m2; after two cycles and compensation using the pending compensation value, the brightness curve of the first display area is u3, and the brightness curve of the second display area is m3. It can be seen that at this time, the brightness curve of the curve camera area is very close to the brightness curve of the first display area, achieving a good compensation effect.

[0217] Please refer to Figure 10, which is a schematic diagram of a compensation effect in the method provided in the embodiment of the application, wherein the first column on the left is the brightness value (the brightness is the ideal brightness value of the sub-pixel in the screen), and the unit can be nits. The 9 figures on the right are respectively compensation effect diagrams of the second display area and the surrounding first display area at different brightness and different numbers of compensation cycles. It can be seen that at different brightness, after two cycles, the brightness difference between the second display area and the surrounding first display area has been significantly reduced.

[0218] Step 705: Determine the pending compensation values ​​of the multiple sub-pixels as target compensation values ​​of the multiple sub-pixels at the first specified brightness.

[0219] When the target brightness data is met, the compensation device may determine the undetermined compensation values ​​of the plurality of sub-pixels as the target compensation values ​​of the plurality of sub-pixels at the first specified brightness.

[0220] Step 706: Obtain conversion coefficients between target compensation values ​​of multiple sub-pixels at a first specified brightness and at least one other target compensation value.

[0221] The other target compensation values ​​are target compensation values ​​of a plurality of sub-pixels at specified brightnesses other than the first specified brightness.

[0222] The compensation device can obtain at least one other target compensation value based on the method of obtaining the target compensation value under the first specified brightness, and determine the conversion coefficient between them based on the at least one other target compensation value and the target compensation values ​​of multiple sub-pixels under the above-mentioned first specified brightness, so as to reduce the storage space occupied by the memory in the display device.

[0223] Step 707: Store the target compensation values ​​and conversion coefficients of the plurality of sub-pixels at the first specified brightness in a memory of the display device.

[0224] The compensation device can store the target compensation values ​​of multiple sub-pixels under the first specified brightness and the conversion coefficient obtained in the above steps in the memory of the display device, and then the display device can obtain the target compensation values ​​of multiple sub-pixels under other specified brightness based on the conversion coefficient and the target compensation values ​​of multiple sub-pixels under the first specified brightness to compensate the under-screen display area in the display panel.

[0225] Optionally, a display panel in a display device may include at least a blue light-emitting unit for emitting blue light, a green light-emitting unit for emitting green light, and a red light-emitting unit for emitting red light. Accordingly, the target compensation value may include a blue light compensation value for the blue light-emitting unit, a green light compensation value for the green light-emitting unit, and a red light compensation value for the red light-emitting unit. This improves the compensation effect by separately compensating the red, green, and blue light-emitting units, thereby enhancing the display quality of the display device.

[0226] In summary, the compensation value determination method for a display device provided in the embodiments of the present application improves the compensation effect of the compensation value on multiple sub-pixels in the second display area by repeatedly determining the compensation value. This allows the determined target compensation value to ensure that the brightness difference between the second display area and the first display area meets the target brightness data. This solves the problem in the related art of the large difference in brightness between the sub-pixels in the second display area and the sub-pixels in the first display area, resulting in poor display quality of the display device. This improves the display quality of the display device.

[0227] In addition, embodiments of the present application further provide a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the compensation value determination method provided in the various optional implementations described above.

[0228] In this application, the term "at least one of A and B" simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, and B exists alone. Similarly, "at least one of A, B, and C" means that seven possible relationships exist, indicating: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, C and B exist simultaneously, and A, B, and C exist simultaneously. Similarly, "at least one of A, B, C, and D" means that fifteen possible relationships exist, indicating: A exists alone, B exists alone, C exists alone, D exists alone, A and B exist simultaneously, A and C exist simultaneously, A and D exist simultaneously, C and B exist simultaneously, D and B exist simultaneously, C and D exist simultaneously, C and D exist simultaneously, A, B, and C exist simultaneously, A, B, and D exist simultaneously, A, C, and D exist simultaneously, B, C, and D exist simultaneously, and A, B, C, and D exist simultaneously.

[0229] In this application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise expressly limited.

[0230] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0231] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0232] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0233] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display device, characterized in that, the display device includes a display panel, a first control component, and a memory. The display panel includes a substrate, a target circuit structure located on the substrate, and a plurality of light-emitting units. The substrate has a first display area and a second display area. The first display area surrounds the second display area. The plurality of light-emitting units are located in the second display area and the first display area. The target circuit structure is electrically connected to the plurality of light-emitting units; the memory stores target compensation values of a plurality of sub-pixels in the second display area, and the target compensation values of the plurality of sub-pixels are compensation values corresponding to the target circuit structure; the first control component is configured to obtain the target compensation values of the plurality of sub-pixels from the memory, and compensate the plurality of sub-pixels based on the compensation values of the plurality of sub-pixels; wherein, the target compensation values of the plurality of sub-pixels include the target compensation values of the plurality of sub-pixels at a first specified brightness, and the target compensation values at the first specified brightness are used to make the brightness difference between the plurality of sub-pixels and the sub-pixels in the first display area conform to target brightness data when compensating the plurality of sub-pixels.

2. The display device according to claim 1, characterized in that, the memory further stores at least one conversion coefficient; the first control component is configured to obtain the at least one conversion coefficient from the memory, and determine the target compensation values of the plurality of sub-pixels at at least one other specified brightness except the first specified brightness based on the at least one conversion coefficient and the target compensation values of the plurality of sub-pixels at the first specified brightness.

3. The display device according to claim 1, characterized in that, the memory stores 7 of the conversion coefficients; the first control component is configured to obtain the 7 conversion coefficients from the memory, and determine the target compensation values of the plurality of sub-pixels at seven other specified brightnesses except the first specified brightness based on the 7 conversion coefficients and the target compensation values of the plurality of sub-pixels at the first specified brightness. The first specified brightness and the seven specified brightnesses are evenly distributed within the brightness range of the display panel.

4. The display device according to claim 1, characterized in that, the target compensation values of the plurality of sub-pixels are compensation values corresponding to a display device of the same manufacturing batch having the target circuit structure.

5. A compensation system for a display device, characterized in that, the compensation system includes a display device and a compensation device; the display device includes a display panel, a first control component, and a memory. The display panel includes a substrate, a target circuit structure located on the substrate, and a plurality of light-emitting units. The substrate has a second display area and a first display area outside the second display area. The plurality of light-emitting units are located in the second display area and the first display area. The target circuit structure is electrically connected to the plurality of light-emitting units; the compensation device is configured to: Obtain the temporary compensation values of multiple sub-pixels in the second display area at the first specified brightness based on the compensation value determination process; Add the temporary compensation values of the multiple sub-pixels to the pending compensation values of the multiple sub-pixels; Compensate the multiple sub-pixels with the pending compensation values of the multiple sub-pixels; Determine whether the brightness difference between the second display area and the first display area meets the target brightness data; When it does not meet the target brightness data, execute the step of obtaining the temporary compensation values of multiple sub-pixels in the second display area at the first specified brightness based on the compensation value determination process; When it meets the target brightness data, determine the pending compensation values of the multiple sub-pixels as the target compensation values of the multiple sub-pixels at the first specified brightness; Store the target compensation values of the multiple sub-pixels at the first specified brightness in the memory of the display device; The compensation value determination process includes: Compensate the multiple sub-pixels with the pending compensation values of the multiple sub-pixels, and control the display panel to display the image data of the first specified brightness; Obtain the brightness parameters of multiple sub-pixels in the second display area and the brightness parameters of the first display area; Determine the temporary compensation value based on the difference between the brightness parameters of the multiple sub-pixels and the brightness parameters of the first display area.

6. The compensation system of the display device according to claim 5, wherein, The compensation device includes a second control component and an image acquisition component; The image acquisition component is used for: When the display panel displays the image data of the first specified brightness, collect the images of multiple sub-pixels in the second display area and collect the image of the first display area; The second control component is used for: Determine the brightness parameters of the multiple sub-pixels based on the images of the multiple sub-pixels in the second display area; Determine the brightness parameters of the first display area based on the image of the first display area.

7. The compensation system of the display device according to claim 5, wherein, The image acquisition component is used for: When the display panel displays the image data of the first specified brightness, capture an image including the second display area and at least a part of the first display area surrounding the second display area.

8. The compensation system of the display device according to claim 5, wherein, The second control component is used for: Based on the image of the first display area, determine the brightness mean value of the first display area; Determine the brightness parameters of the first display area based on the brightness mean value.

9. The compensation system of the display device according to claim 5, wherein, The compensation device is used for: Obtain the conversion coefficient between the target compensation values of the multiple sub-pixels at the first specified brightness and at least one other target compensation value, where the other target compensation value is the target compensation value of the multiple sub-pixels at a specified brightness other than the first specified brightness; Store the conversion coefficient in the memory of the display device.

10. The compensation system of the display device according to claim 5, wherein, The second control component is used for: Determine the temporary compensation value according to a preset formula, the preset formula including: Wherein, the pD1 is the temporary compensation value of the first sub-pixel among the multiple sub-pixels, and the lv1 t is the brightness parameter of the first display area, and the lv1 p is the brightness parameter of the first sub-pixel, and g is the gamma value of the display device.

11. The compensation system for a display device according to any one of claims 5 to 10, characterized in that, the plurality of light-emitting units at least includes a blue light-emitting unit for emitting blue light, a green light-emitting unit for emitting green light, and a red light-emitting unit for emitting red light; the target compensation value includes a blue light compensation value of the blue light-emitting unit, a green light compensation value of the green light-emitting unit, and a red light compensation value of the red light-emitting unit.

12. A method for determining a compensation value, characterized in that, for a compensation system of a display device, the compensation system includes a display device and a compensation device, the compensation device is used to compensate the display device, the display device includes a display panel, a first control component and a memory, the display panel includes a substrate and a target circuit structure and a plurality of light-emitting units located on the substrate, the substrate has a second display area and a first display area outside the second display area, the plurality of light-emitting units are located in the second display area and the first display area, and the target circuit structure is electrically connected to the plurality of light-emitting units; the method includes: acquiring temporary compensation values of a plurality of sub-pixels in the second display area at a first specified brightness based on a compensation value determination process; adding the temporary compensation values of the plurality of sub-pixels to the pending compensation values of the plurality of sub-pixels; compensating the plurality of sub-pixels with the pending compensation values of the plurality of sub-pixels; determining whether the brightness difference between the second display area and the first display area conforms to target brightness data; when not conforming to the target brightness data, performing the step of acquiring temporary compensation values of a plurality of sub-pixels in the second display area at a first specified brightness based on the compensation value determination process; when conforming to the target brightness data, determining the pending compensation values of the plurality of sub-pixels as the target compensation values of the plurality of sub-pixels at the first specified brightness; the compensation value determination process includes: compensating the plurality of sub-pixels with the pending compensation values of the plurality of sub-pixels, and controlling the display panel to display image data of the first specified brightness; acquiring brightness parameters of a plurality of sub-pixels in the second display area, and those of the first display area brightness parameters; determining the temporary compensation value based on the difference between the brightness parameters of the plurality of sub-pixels and the brightness parameters of the first display area.

13. The method according to claim 12, characterized in that, the acquiring brightness parameters of a plurality of sub-pixels in the second display area, and those of the first display area, includes: when the display panel displays image data of the first specified brightness, collecting images of a plurality of sub-pixels in the second display area, and collecting an image of the first display area; determining the brightness parameters of the plurality of sub-pixels based on the images of the plurality of sub-pixels in the second display area; determining the brightness parameters of the first display area based on the image of the first display area.

14. The method according to claim 12, characterized in that, the method further includes: Obtain a conversion coefficient between the target compensation values of the multiple sub-pixels at the first specified brightness and at least one other target compensation value, where the other target compensation value is the target compensation value of the multiple sub-pixels at a specified brightness other than the first specified brightness; Store the conversion coefficient in the memory of the display device.

15. The method according to claim 12, wherein, the determining of the temporary compensation value based on the difference between the brightness parameters of the multiple sub-pixels and the brightness parameter of the first display area includes: Determine the temporary compensation value according to a preset formula, where the preset formula includes: Wherein, the pD1 is the temporary compensation value of the first sub-pixel among the multiple sub-pixels, and the lv1 t is the brightness parameter of the first display area, and the lv1 p is the brightness parameter of the first sub-pixel, and the g is the gamma value of the display device.

Images