Display module, display compensation method and device thereof and driving method of display module

Abstract

The invention relates to a display module, a display compensation method and device thereof and a driving method of the display module, and relates to the technical field of display. The exterior facing of the display area of the display module is provided with textures; the display compensation method of the display module comprises the following steps: acquiring appearance image information of an exterior facing of a display area under the condition that the display module is not lightened; determining first compensation data of a display area of the display module according to the appearance image information; wherein the first compensation data is used for performing display compensation on the display module. The influence of the texture of the exterior facing of the display module on the display effect can be counteracted, the uniformity of a display picture of the display module is improved, and the display effect is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a display compensation method and device thereof, and a driving method of the display module. Background Art

[0002] With the advancement of modern science and technology and the rapid development of display panel technology, people have higher and higher requirements for the display effect of display panels. In order to improve the sense of luxury and technology of display panels, display products with integrated display design that blend with the environment have emerged. When the display product is not lit, it is integrated with the surrounding environment, improving the integrity and aesthetics of the entire environment. How to improve the display effect of display products with integrated display design that blend with the environment is a problem that needs to be solved at present. Summary of the invention

[0003] Based on this, it is necessary to provide a display module and a display compensation method, device and a display module driving method that can improve the display effect of a display product with an integrated display design that is integrated with the environment in order to address the above technical problems.

[0004] In a first aspect, the present application provides a display compensation method for a display module, wherein an outer surface of a display area of ​​the display module has a texture; the method comprises:

[0005] Acquiring appearance image information of the outer surface of the display area when the display module is not lit;

[0006] According to the appearance image information, first compensation data of a display area of ​​the display module is determined; wherein the first compensation data is used to perform display compensation on the display module.

[0007] In one embodiment, determining first compensation data of a display area of ​​the display module according to the appearance image information includes:

[0008] Obtaining inverted color image information of the appearance image information by performing inverted color processing on the appearance image information;

[0009] Using the inverted image information as the first compensation data;

[0010] In one of the embodiments, the appearance image information is obtained under a preset brightness in the environment where the display module is located;

[0011] In one of the embodiments, the preset brightness ranges from 100lx to 300lx;

[0012] In one embodiment, the display module includes a display module, the display module includes a display area, and the display area includes the outer surface with a texture;

[0013] In one of the embodiments, the display panel includes a display module and a film material, wherein the film material is located at a light emitting side of a display area of ​​the display module, and the film material is transparent and has a texture.

[0014] In one embodiment, the obtaining the inverted color image information of the appearance image information by inverting the appearance image information includes:

[0015] According to the appearance image information, respectively determine the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level;

[0016] According to the maximum grayscale value under the grayscale level, the grayscale value corresponding to each sub-pixel of the appearance image information is inverted, and the inverted grayscale value corresponding to each sub-pixel is determined to obtain the inverted image information;

[0017] In one embodiment, the method further comprises:

[0018] Correcting the grayscale value of each sub-pixel in the inverted image information so that the grayscale value of each sub-pixel in the inverted image information remains within a preset range defined by the grayscale level;

[0019] In one embodiment, the method further comprises:

[0020] Determine the sub-compensation data corresponding to each sub-pixel in the display area according to the first compensation data;

[0021] Using the sub-compensation data corresponding to each sub-pixel to respectively compensate the driving electrical signal of each sub-pixel in the display area, so as to drive the display area for display through the compensated driving electrical signal;

[0022] In one embodiment, the sub-compensation data includes a surface compensation electrical signal.

[0023] In one embodiment, after the step of using the sub-compensation data corresponding to each sub-pixel to respectively compensate the driving electrical signal of each sub-pixel in the display area, the method further includes:

[0024] Based on the compensated driving electrical signal, obtaining display parameters of the display module when displaying an image;

[0025] When the display parameters do not match the preset target display parameters, a driving compensation signal is determined based on the current driving electrical signal of the display module, the display parameters and the target display parameters; wherein the driving compensation signal is used to adjust the current driving electrical signal of the display module so that the display parameters of the display module match the target display parameters.

[0026] In one embodiment, the current driving electrical signal of the display module includes a first color driving electrical signal, a second color driving electrical signal and a third color driving electrical signal, the driving compensation signal includes a first color driving compensation electrical signal, a second color driving compensation electrical signal and a third color driving compensation electrical signal, the driving electrical signal of the same color is used to provide to the sub-pixel of the corresponding color to drive the sub-pixel of the corresponding color to emit light, and the determining of the driving compensation signal according to the current driving electrical signal of the display module, the display parameter and the target display parameter includes:

[0027] Determine the first color drive compensation electrical signal according to the display parameter, the first color drive electrical signal and the target display parameter, determine the second color drive compensation electrical signal according to the display parameter, the second color drive electrical signal and the target display parameter, and determine the third color drive compensation electrical signal according to the display parameter, the third color drive electrical signal and the target display parameter;

[0028] The first color driving compensation electrical signal is used to adjust the first color driving electrical signal, the second color driving compensation electrical signal is used to adjust the second color driving electrical signal, and the third color driving compensation electrical signal is used to adjust the third color driving electrical signal.

[0029] In one embodiment, determining the driving compensation signal according to the current driving electrical signal of the display module, the display parameter and the target display parameter includes:

[0030] Obtaining display parameters of a sub-pixel of a target color at a grayscale binding point to be debugged when the display module displays an image; wherein the target color is one of a first color, a second color, and a third color;

[0031] Determining a target display parameter corresponding to the grayscale binding point according to the grayscale binding point and a preset gamma curve;

[0032] Adjusting the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be adjusted until the display parameter of the sub-pixel of the target color in response to the adjusted driving electrical signal matches the target display parameter;

[0033] The driving compensation signal corresponding to the sub-pixel of the target color at the grayscale binding point to be adjusted is determined according to the difference between the adjusted driving electrical signal and the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be adjusted.

[0034] In a second aspect, the present application provides a method for driving a display module, wherein an outer surface of a display area of ​​the display module has a texture; the method comprises:

[0035] Obtaining first compensation data; wherein the first compensation data is determined by obtaining appearance image information of the outer surface of the display area when the display module is not lit, and the first compensation data is used to perform display compensation on the display module;

[0036] The display module is driven to display based on the first compensation data.

[0037] In one embodiment, the first compensation data is inverted color image information obtained by inverting the appearance image information;

[0038] In one of the embodiments, the appearance image information is obtained under a preset brightness in the environment where the display module is located;

[0039] In one embodiment, the preset brightness ranges from 100x1 to 300x1;

[0040] In one embodiment, the display module includes a display module, the display module includes a display area, and the display area includes the outer surface with a texture;

[0041] In one embodiment, the display panel includes a display module and a film material, wherein the film material is located at a light-emitting side of a display area of ​​the display module, and the film material is transparent and has a texture;

[0042] In one of the embodiments, the inverted image information is obtained by respectively determining the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level according to the appearance image information, and inverting the grayscale value corresponding to each sub-pixel of the appearance image information according to the maximum grayscale value at the grayscale level, and determining the inverted grayscale value corresponding to each sub-pixel;

[0043] In one embodiment, the first compensation data is used to respectively determine the sub-compensation data corresponding to each sub-pixel in the display area, and the sub-compensation data corresponding to each sub-pixel is used to respectively compensate the driving electrical signal of each sub-pixel in the display area to obtain a compensated driving electrical signal; wherein, driving the display module to display based on the first compensation data includes:

[0044] The display area is driven for display by the compensated driving electrical signal.

[0045] In a third aspect, the present application provides a display compensation device for a display module, wherein the outer surface of a display area of ​​the display module has a texture; the device comprises:

[0046] An appearance acquisition module, used to acquire appearance image information of an outer surface of the display area when the display module is not lit;

[0047] A compensation determination module is used to determine first compensation data of a display area of ​​the display module according to the appearance image information; wherein the first compensation data is used to perform display compensation on the display module.

[0048] In a fourth aspect, the present application provides a display module, wherein the outer surface of the display area of ​​the display module has a texture, and the display module includes a driving unit and a light-emitting unit; wherein the light-emitting unit includes a plurality of pixels, and the driving unit is used to perform display compensation on each pixel in the light-emitting unit based on first compensation data;

[0049] Wherein, the first compensation data is determined by the following steps:

[0050] Acquiring appearance image information of an outer surface of a display area of ​​the display module when the display module is not lit;

[0051] According to the appearance image information, first compensation data of a display area of ​​the display module is determined; wherein the first compensation data is used to perform display compensation on the display module.

[0052] In a fifth aspect, the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the aforementioned display module compensation method when executing the computer program.

[0053] In a sixth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the aforementioned display module compensation method is implemented.

[0054] In a seventh aspect, the present application provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the compensation method of the display module described above is implemented.

[0055] The above-mentioned display module and its display compensation method, device, display module driving method, computer equipment, storage medium and program product, the method is applied to a display module whose outer surface of the display area has a texture. The method first obtains the appearance image information of the outer surface of the display area when the display module is not lit, so as to facilitate the subsequent analysis of the texture distribution of the outer surface of the display module according to the appearance image information. According to the appearance image information, the first compensation data of the display area of ​​the display module is determined. Since the first compensation data can be used to perform display compensation on the display module, the first compensation data can be used to offset the influence of the texture of the outer surface of the display module on the display effect, thereby improving the uniformity of the display screen of the display module, and then improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. 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 creative work.

[0057] FIG1 is a schematic flow chart of a display compensation method of a display module in one embodiment;

[0058] FIG2 is a schematic flow chart of a method for determining compensation data in one embodiment;

[0059] FIG3 is a schematic flow chart of a method for color inversion processing in one embodiment;

[0060] FIG4 is a schematic flow chart of a gamma debugging method according to an embodiment;

[0061] FIG5 is a flow chart of a specific method for gamma debugging in one embodiment;

[0062] FIG6 is a schematic flow chart of a method for driving a display module in one embodiment;

[0063] FIG7 is a schematic diagram of the structure of a display module in one embodiment;

[0064] FIG8 is a schematic diagram of a compensation device for a display module in one embodiment;

[0065] FIG. 9 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0066] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0068] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0069] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0070] The display compensation method of the display module provided in the embodiment of the present application is applied in the display module to compensate for the display unevenness caused by the textured outer surface of the display module, thereby improving the display uniformity of the display module and improving the display effect of the display module.

[0071] In one embodiment, as shown in FIG1 , a display compensation method for a display module is provided, wherein the outer surface of the display area of ​​the display module has a texture. The method comprises: steps S100 and S110.

[0072] Step S100, obtaining appearance image information of the outer surface of the display area when the display module is not lit.

[0073] Among them, the outer surface of the display area of ​​the display module has a texture. The outer surface can be understood as the surface on the light-emitting side. The touch of the outer surface of the display module can be leather, wood grain, fabric, glass, plastic, etc. The surface of the outer surface of the display module can be a diffuse reflection matte, a reflective bright surface, etc., so that when the display module is not lit, it can present an effect of integration with the surrounding environment area, such as an integrated black, brown, gray, etc. When it is not lit, it is impossible to find that this is a display module with the naked eye, thereby improving the harmony, high-end, design, and aesthetics of the entire environment, and being able to display and help the smart life experience. While pursuing display quality, it can also restore the original authenticity and hide the display screen with technology, so that the display module maintains the display quality during the use stage, and restores the original appearance of the environment (car, furniture, etc.) when not in use. Create a seamless environment, greatly improving the beauty and integrity of the environment.

[0074] Exemplarily, the display module includes a display module, the display module includes a display area, the display area includes an outer surface with a texture, wherein the display module is used for display, and the texture is a characteristic of the display module itself. In another exemplary embodiment, the display module includes a display module and a film material, the film material is located on the light-emitting side of the display area of ​​the display module, the film material is transparent and has a texture, and the texture is a characteristic of the film material itself. For example, an environmentally integrated surface film material can be used to replace the original glass cover plate, and the material of the film material can be wood, silicone, leather, plastic, etc. The film material has a certain light transmittance, for example, the light transmittance ranges from 20% to 55%. The light transmittance of the film material is related to the material of the film material, and is not excessively limited here.

[0075] Among them, when the display module is not lit, the appearance image information of the outer surface of the display area of ​​the display module can be obtained through a charge coupled device (CCD) camera, an optical probe and other equipment.

[0076] When acquiring the appearance image information of the outer surface of the display area of ​​the display module, it is necessary to ensure that the illumination of the environment in which the display module is located is at a preset brightness, that is, the appearance image information is acquired at the preset brightness in the environment in which the display module is located, so as to ensure that the appearance image information of the outer surface can be clearly collected, and the appearance image information can clearly present the depth of the surface texture of the outer surface and the location of the surface texture. In some embodiments, the preset brightness ranges from 100lx to 300lx, for example, it can be 100lx, 150lx, 200lx, 250lx or 300lx, or any suitable value between 100lx and 300lx, which is not limited here.

[0077] Step S110 , determining first compensation data of a display area of ​​the display module according to the appearance image information, wherein the first compensation data is used to perform display compensation on the display module.

[0078] Among them, after the appearance image information is captured, the depth of the skin texture of the exterior surface and the location of the skin texture can be obtained from the appearance image information. When the display module is lit, the skin texture interferes with the display effect, and the dark texture position will lower the display brightness. Therefore, after collecting the distribution of the skin texture, a pre-compensation setting can be made on the display module according to the distribution of the skin texture, that is, the display module is compensated using the first compensation data. For example: for the location of the exterior surface with a deeper texture, the driving electrical signal of the location is relatively increased, and the brightness of the location is increased, thereby compensating for the part of the brightness that is lowered due to the deeper texture.

[0079] In this embodiment, the method is applied to a display module whose outer surface of the display area has a texture. The method first obtains the appearance image information of the outer surface of the display area when the display module is not lit, so as to facilitate the subsequent analysis of the texture distribution of the outer surface of the display module according to the appearance image information. According to the appearance image information, the first compensation data of the display area of ​​the display module is determined. Since the first compensation data can be used to perform display compensation on the display module, the first compensation data can be used to offset the influence of the texture of the outer surface of the display module on the display effect, thereby improving the uniformity of the display screen of the display module, and further improving the display effect.

[0080] In one embodiment, as shown in FIG2 , step S110 , determining first compensation data of a display area of ​​a display module according to appearance image information, includes steps S200 - S210 .

[0081] Step S200 , obtaining inverted color image information of the appearance image information by performing inverted color processing on the appearance image information.

[0082] The grayscale value of each sub-pixel corresponding to the inverse color image information and the grayscale value of each sub-pixel corresponding to the appearance image information are added together to obtain the maximum grayscale value of the appearance image information.

[0083] After obtaining the appearance image information, the appearance image information is converted into a grayscale image, and the display data of each sub-pixel is represented by a grayscale value. Then, the appearance image information is inverted to obtain the inverted image information. The grayscale value of each sub-pixel is less than the maximum grayscale value.

[0084] For example, taking the maximum grayscale value as 255 as an example, the color inversion process is represented by the following formula:

[0085] Image '=255-I mage

[0086] Among them, I mage ' is the gray value of a sub-pixel of the inverted image information, I mage is the grayscale value of the corresponding sub-pixel of the appearance image information, and 255 is the maximum grayscale value. mage =50, the gray value of the sub-pixel corresponding to the inverted image information is I mage '=205.

[0087] In another exemplary embodiment, taking the maximum gray value as 0 as an example, the inversion process is represented by the following formula:

[0088] I mage '=0-I mage

[0089] Among them, I mage ' is the gray value of a sub-pixel of the inverted image information, I mage is the grayscale value of the corresponding sub-pixel of the appearance image information, and 0 is the maximum grayscale value. mage =32, the gray value I of the sub-pixel corresponding to the inverted image information mage '=-32.

[0090] In practical applications, the maximum grayscale value may be preset and may be set according to specific scenarios, and is not limited here.

[0091] Step S210: Using the inverted image information as first compensation data.

[0092] Among them, the appearance image information and the inverted image information corresponding to the appearance image information, since the grayscale values ​​of the sub-pixels corresponding to the two images are complementary, and the sum is the maximum grayscale value, therefore, the appearance image information and the inverted image information corresponding to the appearance image information are superimposed, and can be completely complementary to present a white picture. Therefore, when the display module displays the inverted image information, it can just offset the texture on the exterior surface to achieve the effect of presenting a white picture, so that the display module will not be affected by the texture when displaying the picture later. Then the inverted image information displayed by the display module is recorded as the first compensation data. It is also possible to directly look up the table and obtain the driving electrical signal corresponding to the grayscale value of each sub-pixel when the display module displays the inverted image information according to the built-in gamma curve of the display module without lighting up the display module, and then record it as the first compensation data.

[0093] In this embodiment, the first compensation data is obtained by inverting the appearance image information, which can offset the texture on the exterior surface, so that the display module is not affected by the texture when displaying the picture later.

[0094] In one embodiment, as shown in FIG3 , step S200 , by performing color inversion processing on the appearance image information, obtains the inverted color image information of the appearance image information, including steps S300 - S320 .

[0095] Step S300: determining the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level according to the appearance image information.

[0096] After obtaining the appearance image information, the appearance image information may be preprocessed by filtering and noise reduction, and then the appearance image information may be format converted to a gray value image, and the display data of each sub-pixel is represented by a gray value. The preset gray level may be 256 gray levels or other gray levels.

[0097] Step S310 , inverting the grayscale value corresponding to each sub-pixel of the appearance image information according to the maximum grayscale value under the grayscale level, and determining the inverted grayscale value corresponding to each sub-pixel to obtain inverted image information.

[0098] Among them, the grayscale value of each sub-pixel of the inverted image information is the inverted grayscale value of the corresponding sub-pixel of the appearance image information. By inverting the grayscale value of each sub-pixel of the appearance image information, the inverted grayscale value corresponding to each sub-pixel can be obtained, and the grayscale value of the sub-pixel corresponding to the inverted image information is the inverted grayscale value of the sub-pixel corresponding to the appearance image information. Specifically, the grayscale value of the sub-pixel can be inverted by adjusting the chromaticity and brightness of the appearance image information.

[0099] Exemplarily, the grayscale value of each sub-pixel of the inverted image information, that is, the inverted grayscale value of the corresponding sub-pixel of the appearance image information, is determined by the following formula:

[0100] I mage '=255-I mage

[0101] Among them, I mage ' is the grayscale value of a sub-pixel of the inverted image information (the inverted grayscale value of the corresponding sub-pixel of the appearance image information), I mage is the grayscale value of the sub-pixel corresponding to the appearance image information, and 255 is the maximum grayscale value.

[0102] In one embodiment, please continue to refer to Figure 3, the display compensation method of the display module may also include, step S320, correcting the grayscale value of each sub-pixel in the inverted image information so that the grayscale value of each sub-pixel in the inverted image information remains within a preset range defined by the grayscale level.

[0103] Among them, after obtaining the inverted image information, it is also necessary to correct and review the grayscale values ​​of each sub-pixel of the inverted image information. Because the adjustment of brightness and chromaticity may result in over-compensation, correction is required to keep the grayscale values ​​of each sub-pixel in the inverted image information within a preset range. The preset range is a predefined normal range of grayscale values.

[0104] After the grayscale value of each sub-pixel of the inverted image information is obtained, the grayscale value of each sub-pixel can be specifically expressed as a data code with a physical address, which is burned into the driver chip of the display module, so that when the display module displays the picture, the sub-pixels at different positions will use the burned-in electrical signal for display compensation, thereby ensuring that the displayed picture is not affected by the texture. The corresponding relationship between each sub-pixel and the corresponding surface compensation electrical signal can be recorded and stored.

[0105] In this embodiment, a method for inverting appearance image information is provided, which can obtain inverted image information of the appearance image information, thereby facilitating compensation for the display unevenness problem caused by the surface texture of the exterior surface and ensuring that the display image is not affected by the texture.

[0106] In one embodiment, as shown in FIG. 4 , the display compensation method of the display module may further include the following steps S400 and S410 .

[0107] Step S400: determining sub-compensation data corresponding to each sub-pixel in the display area according to the first compensation data.

[0108] Sub-compensation data refers to compensation data corresponding to sub-pixels in the display area. For example, the compensation data can be understood as a voltage value. Exemplarily, the sub-compensation data includes a surface compensation electrical signal corresponding to the sub-pixel, and the first compensation data can be used as a surface compensation electrical signal corresponding to each sub-pixel in the display area. For example, the surface compensation electrical signal can be understood as a voltage signal.

[0109] Step S410 , using the sub-compensation data corresponding to each sub-pixel to respectively compensate the driving electrical signal of each sub-pixel in the display area, so as to drive the display area for display by the compensated driving electrical signal.

[0110] Among them, after determining the sub-compensation data corresponding to each sub-pixel, when lighting up the display module, each sub-pixel can be compensated differentially in a targeted manner. Specifically, it can be understood that for a position with a deep texture, the driving electrical signal can be increased accordingly, and for a position with a shallow texture, the driving electrical signal can be decreased accordingly, so that the positions with a deeper texture and the positions with a shallow texture present the same display effect, eliminating the influence of the external surface texture on the display effect of the display module.

[0111] In this embodiment, the method is applied to a display module whose outer surface of the display area has a texture. The method first obtains the appearance image information of the outer surface of the display area of ​​the display module when the display module is not lit, so as to facilitate the subsequent analysis of the texture distribution of the outer surface of the display module according to the appearance image information. According to the appearance image information, the first compensation data of the display area of ​​the display module is determined, and the sub-compensation data corresponding to each sub-pixel in the display area of ​​the display module is determined according to the first compensation data, so that the compensation adjustment electric signal can be determined according to the texture distribution of the outer surface of the display area, so as to facilitate the subsequent compensation of the texture of the outer surface. The sub-compensation data corresponding to each sub-pixel is used to compensate the driving electric signal of each sub-pixel of the display module, so as to offset the influence of the texture of the outer surface of the display module on the display effect, improve the uniformity of the display screen of the display module, and improve the display effect.

[0112] In one embodiment, please continue to refer to FIG. 4 , in step S410 , after the driving electrical signal of each sub-pixel in the display area is compensated using the sub-compensation data corresponding to each sub-pixel, the compensation method of the display module further includes steps S420 - S430 .

[0113] Step S420, based on the compensated driving electrical signal, obtaining display parameters of the display module when displaying an image.

[0114] Among them, the display module can be lit in a dark room, and the dark room can be an environment with an illumination of 200lx, so as to highlight the display parameters of the display module and reduce the interference of the ambient brightness. When lighting up, the sub-pixels of three colors R / G / B can be lit up separately at different grayscales, for example, they are lit up separately at grayscales of 0-255, and the display parameters of the sub-pixels of each color when they are lit up at each grayscale are collected, so as to facilitate the subsequent gamma debugging of the display module. It can be understood that the current display module has adopted the method in the above embodiment to compensate the driving electrical signal of the display module based on the first compensation data, so the surface compensation electrical signal corresponding to each sub-pixel has been preset in the display module, and the subsequent gamma debugging is debugged on the basis of the surface compensation electrical signal. For example, the display module needs to display a red image at this time, so the display module needs to receive the driving electrical signal of the red image (recorded as the red driving electrical signal), then when the display module displays the red image, the actual driving electrical signal of each sub-pixel is the corresponding red driving electrical signal plus the surface compensation electrical signal.

[0115] Step S430: when the display parameters do not match the preset target display parameters, a driving compensation signal is determined according to the current driving electrical signal of the display module, the display parameters and the target display parameters.

[0116] The current driving electrical signal is the compensated driving electrical signal. The driving compensation signal is used to adjust the current driving electrical signal of the display module so that the display parameters of the display module match the target display parameters.

[0117] Among them, the mismatch between the display parameters and the preset target display parameters can be understood as the display parameters such as the brightness when the display module displays the image are not within the range of the corresponding target display parameters, so the driving electrical signal needs to be adjusted until the display parameters of the display module match the target display parameters. The total adjustment amount in this process is the driving compensation signal.

[0118] In this embodiment, the display data of the display module when displaying an image is first obtained, that is, the actual display data of the display module before gamma debugging is performed, so that the display data is used as reference data to facilitate the subsequent gamma debugging of the display module. Then, it is determined whether the display data of the display module matches the target display data. If the display data does not match the target display data, it means that the display module needs to be gamma debugged to present a better display effect. Therefore, the drive compensation signal is determined according to the current drive electrical signal, display parameters and target display parameters of the display module. The drive compensation signal is used to adjust the current drive electrical signal of the display module so that the display parameters of the display module match the target display parameters, thereby completing the gamma debugging of the display module.

[0119] In one embodiment, in step S420, when the display parameters do not match the preset target display parameters, a drive compensation signal is determined according to the current drive electrical signal, display parameters and target display parameters of the display module. Specifically, it includes:

[0120] The first color drive compensation electric signal is determined according to the display parameters, the first color drive electric signal and the target display parameters; the second color drive compensation electric signal is determined according to the display parameters, the second color drive electric signal and the target display parameters; the third color drive compensation electric signal is determined according to the display parameters, the third color drive electric signal and the target display parameters.

[0121] Among them, the current driving electrical signal of the display module includes a first color driving electrical signal, a second color driving electrical signal and a third color driving electrical signal, and the driving electrical signal of the same color is used to provide to the pixels of the corresponding color to drive the sub-pixels of the corresponding color to emit light.

[0122] Among them, the display module includes multiple sub-pixels of different colors. By adjusting the driving electrical signals provided to the sub-pixels of different colors, the display parameters of the sub-pixels of different colors can be independently adjusted to ensure that the display parameters of the sub-pixels of each color can match the corresponding target display parameters.

[0123] Among them, the driving compensation signal includes a first color driving compensation electrical signal, a second color driving compensation electrical signal, and a third color driving compensation electrical signal. The first color driving compensation electrical signal is used to adjust the first color driving electrical signal, the second color driving compensation electrical signal is used to adjust the second color driving electrical signal, and the third color driving compensation electrical signal is used to adjust the third color driving electrical signal.

[0124] Exemplarily, under the current grayscale, the initial first color driving electrical signal is used to light up the sub-pixel of the first color, the initial second color driving electrical signal is used to light up the sub-pixel of the second color, and the initial third color driving electrical signal is used to light up the sub-pixel of the third color, and then the display data of the current display module is obtained, and then the first color driving electrical signal, the second color driving electrical signal and the third color driving electrical signal are adjusted respectively, and the display data of the current display module is obtained in real time until the display data of the current display module matches the target display data, and the change between the first color driving electrical signal when the display data of the current display module matches the target display data and the initial first color driving electrical signal is used as the first color driving compensation electrical signal, the change between the second color driving electrical signal when the display data of the current display module matches the target display data and the initial second color driving electrical signal is used as the second color driving compensation electrical signal, and the change between the third color driving electrical signal when the display data of the current display module matches the target display data and the initial third color driving electrical signal is used as the third color driving compensation electrical signal.

[0125] In order to make the overall display data of the display module reach the corresponding target display data, under the same grayscale, sub-pixels of different colors may have different driving electrical signals; under the same grayscale, sub-pixels of the same color have the same driving electrical signal; under different grayscales, sub-pixels of the same color may also have different driving electrical signals; under different grayscales, sub-pixels of different colors may also have the same driving electrical signal. Therefore, it is necessary to independently debug the driving electrical signals of sub-pixels of each color under each grayscale.

[0126] In this embodiment, the color adjustment of the display module is completed by adjusting the sub-pixels of three colors independently.

[0127] In one embodiment, as shown in FIG. 5 , determining a driving compensation signal according to a current driving electrical signal, display parameters and target display parameters of a display module includes steps S500 - S530 .

[0128] Step S500, obtaining display parameters of sub-pixels of a target color at a grayscale binding point to be adjusted when the display module displays an image.

[0129] The target color is one of the first color, the second color, and the third color.

[0130] Among them, in the process of gamma debugging, usually multiple grayscale binding points are obtained, and then gamma correction is performed on the multiple grayscale binding points. After completing the gamma correction of the multiple grayscale binding points, the voltages corresponding to other grayscales are calculated by linear interpolation, and the gamma debugging is completed.

[0131] Exemplarily, if the display module includes 256 grayscales, a grayscale binding point can be selected every 15 grayscales, that is, 17 grayscale binding points are obtained. After the grayscale binding points are gamma-adjusted to obtain the voltages corresponding to the 17 grayscale binding points, linear interpolation is performed between every two adjacent grayscale binding points. This is repeated multiple times to obtain the voltages corresponding to the remaining 239 grayscales. Therefore, only a small number of grayscale binding points need to be gamma-adjusted to quickly complete the gamma debugging of each grayscale of the display module, and the gamma debugging is faster and simpler.

[0132] Step S510, determining a target display parameter corresponding to the grayscale binding point according to the grayscale binding point and a preset gamma curve.

[0133] Among them, the gamma curve is a curve of the relationship between grayscale and output brightness. The preset gamma curve in this embodiment can be a standard gamma curve, that is, a curve of the relationship between grayscale and brightness when the gamma value is 2.2. At this time, the grayscale images obtained by the human eye are the most natural. It should be noted that, in general, there is a non-linear relationship between the brightness perceived by the human eye and the actual display brightness of the display panel. In a low-brightness environment, the human eye is more sensitive to changes in brightness, and vice versa in a high-brightness environment. Due to the nonlinear perception of brightness by the human eye, if we need to obtain a uniformly changing brightness experience, the brightness displayed by the display panel needs to change non-uniformly to adapt to the gamma characteristics of the human eye. The nonlinear parameter of the brightness and grayscale of the display panel can be called a gamma value, and the brightness and grayscale curve drawn according to the gamma value is called a gamma curve. The gamma value characterizes the nonlinear relationship between brightness and grayscale. After a large number of experiments, it is found that the gamma curve when the gamma value is 2.2 can present the best display effect.

[0134] Among them, by substituting the grayscale binding points into the preset gamma curve, the target brightness data corresponding to each grayscale binding point can be directly obtained.

[0135] Step S520, adjusting the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be adjusted until the display parameters of the sub-pixel of the target color in response to the adjusted driving electrical signal match the target display parameters.

[0136] The display parameters of the display module are obtained by measurement. The display parameters of the display module measured at the gray scale of the binding point are compared with the target display parameters to see whether the display parameters are consistent with the target display parameters, so as to determine whether the display parameters match the target display parameters.

[0137] Step S530 , determining a driving compensation signal corresponding to the sub-pixel of the target color at the grayscale binding point to be adjusted according to the difference between the adjusted driving electrical signal and the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be adjusted.

[0138] Among them, the adjusted driving electrical signal, that is, the driving electrical signal when the display parameters match the target display parameters, is compared with the initial driving electrical signal before debugging, and the difference between them is the total adjustment amount, that is, the driving compensation signal corresponding to the sub-pixel of the target color at the grayscale binding point to be debugged.

[0139] After the gamma adjustment is completed, the corresponding relationship between the grayscale binding point and the compensation driving electrical signal of the sub-pixel of the corresponding target color may be recorded and stored.

[0140] In this embodiment, by comparing the display parameters at the grayscale binding point when the display module displays an image with the target display parameters, and then adjusting the driving electrical signals of the sub-pixels of different colors of the display module at the grayscale binding point to be debugged, the driving compensation signal corresponding to the sub-pixel of the target color at the grayscale binding point to be debugged is determined, and the gamma debugging action is completed.

[0141] It should be understood that, although the various steps in the flow charts of Fig. 1-Fig. 5 are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in Fig. 1-Fig. 5 may include a plurality of steps or a plurality of stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the steps or stages in other steps.

[0142] Based on the same inventive concept, the present application also provides a method for driving a display module, which can be applied to a driving device of the display module, such as a driving chip, etc., and can drive the display module to display, improve the display uniformity of the display module, and thus improve the display effect of the display module. The outer surface of the display area of ​​the display module has a texture; as shown in FIG6 , the method for driving the display module includes the following steps S600 and S610.

[0143] S600: Obtaining first compensation data, wherein the first compensation data is determined by obtaining appearance image information of the outer surface of the display area when the display module is not lit, and the first compensation data is used to perform display compensation on the display module. For details, please refer to the above related introduction, which will not be repeated here.

[0144] S610: driving the display module for display based on the first compensation data.

[0145] In the present embodiment, the method is applied to a display module whose outer surface of the display area is a textured display module. The method obtains first compensation data and drives the display module for display based on the first compensation data. Since the first compensation data is determined by obtaining appearance image information of the outer surface of the display area when the display module is not lit and based on the appearance image information, and since the appearance image information includes the texture distribution of the outer surface of the display module, and the first compensation data of the display area of ​​the display module is determined based on the appearance image information, it can be used to perform display compensation on the display module. Therefore, driving the display module for display based on the first compensation data can offset the influence of the texture of the outer surface of the display module on the display effect, thereby improving the uniformity of the display screen of the display module and further improving the display effect.

[0146] In one embodiment, the first compensation data is inverted color image information obtained by performing inverted color processing on the appearance image information.

[0147] In one embodiment, the appearance image information is acquired when the display module is at a preset brightness.

[0148] In one embodiment, the preset brightness ranges from 100x1-300x1.

[0149] In one embodiment, the display module includes a display module, the display module includes a display area, and the display area includes an outer surface with a texture.

[0150] In one embodiment, the display panel includes a display module and a film material, wherein the film material is located at a light-emitting side of a display area of ​​the display module, and the film material is transparent and has a texture.

[0151] In one embodiment, the inverted image information is determined by respectively determining the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level based on the appearance image information, and inverting the grayscale value corresponding to each sub-pixel of the appearance image information based on the maximum grayscale value under the grayscale level, and is obtained by determining the inverted grayscale value corresponding to each sub-pixel.

[0152] In one embodiment, the first compensation data is used to determine the sub-compensation data corresponding to each sub-pixel in the display area, and the sub-compensation data corresponding to each sub-pixel is used to compensate the driving electrical signal of each sub-pixel in the display area. In step 610, the display module is driven to display based on the first compensation data, including: the step of driving the display area to display by the compensated driving electrical signal.

[0153] In one embodiment, as shown in FIG7 , a display module is provided, wherein the outer surface of the display area of ​​the display module has a texture, and the display module includes a driving unit 10 and a light emitting unit 20. The light emitting element 20 is located in the display area. The light emitting unit 20 includes a plurality of pixels 210, and the driving unit 10 is used to perform display compensation on each pixel 210 in the light emitting unit 20 based on the first compensation data.

[0154] The first compensation data is determined by the following steps:

[0155] Obtain appearance image information of the outer surface of the display area when the display module is not lit; determine first compensation data of the display area of ​​the display module based on the appearance image information; wherein the first compensation data is used to perform display compensation on the display module.

[0156] Exemplarily, the appearance image information of the exterior surface may be photographed by a camera, and then the camera is connected to a computer to transmit the appearance image information to the computer, and the computer executes the above steps to determine the first compensation data, and then the first compensation data is burned into the display driver chip (Display Driver IC, DDIC) of the display module.

[0157] Exemplarily, a resistor string is provided inside the display driver chip, and the display driver chip can adjust the voltage corresponding to the gray scale by adjusting the number of resistors between two gray scales, which is a means for the display driver chip to specifically implement gamma debugging. The display driver chip can have built-in driving codes corresponding to different gray scales, such as code 0000-4095, corresponding to a voltage of 0.2-6.8V, or code 0000-4095, corresponding to a voltage of 3.5-6.8V, which can be code 0000-4095 before gamma debugging, corresponding to a voltage of 0.2-6.8V, and after gamma debugging, code 0000-4095 corresponds to a voltage of 3.5-6.8V, thereby adjusting the voltage range and presenting the effect of gamma debugging.

[0158] In this embodiment, the display module includes a driving unit 10 and a light-emitting unit 20. The driving unit 20 is used to perform display compensation on each pixel 210 in the light-emitting unit 20 based on first compensation data. The first compensation data can offset the influence of the texture of the outer surface of the display module on the display effect, improve the uniformity of the display screen of the display module, and improve the display effect.

[0159] In one embodiment, as shown in FIG8 , a display compensation device for a display module is provided, wherein the outer surface of the display area of ​​the display module has a texture; the device comprises: an appearance acquisition module 801 and a compensation determination module 802, wherein:

[0160] The appearance acquisition module 801 is used to acquire the appearance image information of the outer surface of the display area when the display module is not lit.

[0161] The compensation determination module 802 is used to determine first compensation data of a display area of ​​the display module according to the appearance image information; wherein the first compensation data is used to perform display compensation on the display module.

[0162] In one embodiment, the compensation determination module 802 includes: a color inversion unit, wherein:

[0163] The color inversion unit is used to obtain color inverted image information of the appearance image information by performing color inversion processing on the appearance image information, and use the color inverted image information as the first compensation data.

[0164] In one embodiment, the color inversion unit includes: a conversion subunit and an inversion subunit, wherein:

[0165] The conversion subunit is used to determine the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level according to the appearance image information.

[0166] The inversion subunit is used to invert the grayscale value corresponding to each sub-pixel of the appearance image information according to the maximum grayscale value under the grayscale level, and determine the inverted grayscale value corresponding to each sub-pixel to obtain the inverted image information.

[0167] In one embodiment, the color inversion unit further includes a correction subunit, wherein:

[0168] The correction subunit is used to correct the grayscale value of each sub-pixel in the inverse color image information so that the grayscale value of each sub-pixel in the inverse color image information remains within a preset range defined by the grayscale level.

[0169] In one embodiment, the compensation device of the display module further includes: a first compensation module, wherein:

[0170] The first compensation module is used to determine the sub-compensation data corresponding to each sub-pixel in the display area according to the first compensation data, and use the sub-compensation data corresponding to each sub-pixel to compensate the driving electrical signal of each sub-pixel in the display area, so as to drive the display area with the compensated driving electrical signal.

[0171] In one embodiment, the compensation device of the display module further includes: a parameter acquisition module and a second compensation module, wherein:

[0172] The parameter acquisition module is used to acquire the display parameters of the display module when displaying an image based on the compensated driving electrical signal.

[0173] The second compensation module is used to determine a driving compensation signal according to the current driving electrical signal of the display module, the display parameters and the target display parameters when the display parameters do not match the preset target display parameters. The driving compensation signal is used to adjust the current driving electrical signal of the display module so that the display parameters of the display module match the target display parameters.

[0174] In one embodiment, the current driving electrical signal of the display module includes a first color driving electrical signal, a second color driving electrical signal and a third color driving electrical signal, and the driving compensation signal includes a first color driving compensation electrical signal, a second color driving compensation electrical signal and a third color driving compensation electrical signal, and the driving electrical signal of the same color is used to provide to the sub-pixel of the corresponding color to drive the sub-pixel of the corresponding color to emit light. Among them, the second compensation module includes a determination unit. The determination unit is used to determine the first color driving compensation electrical signal according to the display parameters, the first color driving electrical signal and the target display parameters, determine the second color driving compensation electrical signal according to the display parameters, the second color driving electrical signal and the target display parameters, and determine the third color driving compensation electrical signal according to the display parameters, the third color driving electrical signal and the target display parameters; wherein the first color driving compensation electrical signal is used to adjust the first color driving electrical signal, the second color driving compensation electrical signal is used to adjust the second color driving electrical signal, and the third color driving compensation electrical signal is used to adjust the third color driving electrical signal.

[0175] In one embodiment, the determination unit is also used to obtain the display parameters of the sub-pixel of the target color at the grayscale binding point to be debugged when the display module displays an image; determine the target display parameters corresponding to the grayscale binding point according to the grayscale binding point and the preset gamma curve; adjust the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be debugged until the display parameters of the sub-pixel of the target color in response to the adjusted driving electrical signal match the target display parameters; determine the driving compensation signal corresponding to the sub-pixel of the target color at the grayscale binding point to be debugged according to the difference between the adjusted driving electrical signal and the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be debugged. Wherein, the target color is one of the first color, the second color, and the third color.

[0176] For the specific definition of the compensation device of the display module, please refer to the definition of the compensation method of the display module above, which will not be repeated here. Each module in the compensation device of the above-mentioned display module can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0177] In one embodiment, a computer device is provided, and the internal structure diagram of the computer device can be shown in Figure 9. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a compensation method for a display module is implemented.

[0178] Those skilled in the art will understand that the structure shown in FIG. 9 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0179] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0180] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0181] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0182] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0183] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0184] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0185] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display compensation method for a display module, characterized in that: The outer surface of the display area of ​​the display module has a texture; the method comprises: Acquiring appearance image information of the outer surface of the display area when the display module is not lit; According to the appearance image information, first compensation data of a display area of ​​the display module is determined; wherein the first compensation data is used to perform display compensation on the display module.

2. The display compensation method of the display module according to claim 1, characterized in that: The determining, according to the appearance image information, first compensation data of the display area of ​​the display module comprises: Obtaining inverted color image information of the appearance image information by performing inverted color processing on the appearance image information; Using the inverted image information as the first compensation data; Optionally, the appearance image information is obtained under a preset brightness in the environment where the display module is located; Optionally, the preset brightness ranges from 100lx to 300lx; Optionally, the display module comprises a display module, the display module comprises a display area, and the display area comprises the outer surface having a texture; Optionally, the display panel includes a display module and a film material, wherein the film material is located at a light-emitting side of a display area of ​​the display module, and the film material is transparent and has a texture.

3. The display compensation method of the display module according to claim 2, characterized in that: The step of obtaining the inverted color image information of the appearance image information by inverting the color of the appearance image information includes: According to the appearance image information, respectively determine the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level; According to the maximum grayscale value under the grayscale level, the grayscale value corresponding to each sub-pixel of the appearance image information is inverted, and the inverted grayscale value corresponding to each sub-pixel is determined to obtain the inverted image information; Optionally, the method further comprises: Correcting the grayscale value of each sub-pixel in the inverted image information so that the grayscale value of each sub-pixel in the inverted image information remains within a preset range defined by the grayscale level; Optionally, the method further comprises: Determine the sub-compensation data corresponding to each sub-pixel in the display area according to the first compensation data; Using the sub-compensation data corresponding to each sub-pixel to respectively compensate the driving electrical signal of each sub-pixel in the display area, so as to drive the display area for display through the compensated driving electrical signal; Optionally, the sub-compensation data includes a surface compensation electrical signal.

4. The display compensation method of the display module according to claim 3, characterized in that: After the step of respectively compensating the driving electrical signal of each sub-pixel in the display area by using the sub-compensation data corresponding to each sub-pixel, the method further includes: Based on the compensated driving electrical signal, obtaining display parameters of the display module when displaying an image; When the display parameters do not match the preset target display parameters, a driving compensation signal is determined based on the current driving electrical signal of the display module, the display parameters and the target display parameters; wherein the driving compensation signal is used to adjust the current driving electrical signal of the display module so that the display parameters of the display module match the target display parameters.

5. The display compensation method of the display module according to claim 4, characterized in that: The current driving electrical signal of the display module includes a first color driving electrical signal, a second color driving electrical signal and a third color driving electrical signal, the driving compensation signal includes a first color driving compensation electrical signal, a second color driving compensation electrical signal and a third color driving compensation electrical signal, the driving electrical signal of the same color is used to provide to the sub-pixel of the corresponding color to drive the sub-pixel of the corresponding color to emit light, and the driving compensation signal is determined according to the current driving electrical signal of the display module, the display parameter and the target display parameter, including: Determine the first color drive compensation electrical signal according to the display parameter, the first color drive electrical signal and the target display parameter, determine the second color drive compensation electrical signal according to the display parameter, the second color drive electrical signal and the target display parameter, and determine the third color drive compensation electrical signal according to the display parameter, the third color drive electrical signal and the target display parameter; The first color driving compensation electrical signal is used to adjust the first color driving electrical signal, the second color driving compensation electrical signal is used to adjust the second color driving electrical signal, and the third color driving compensation electrical signal is used to adjust the third color driving electrical signal.

6. The display compensation method of the display module according to claim 4, characterized in that: The step of determining the driving compensation signal according to the current driving electrical signal of the display module, the display parameter and the target display parameter comprises: Obtaining display parameters of a sub-pixel of a target color at a grayscale binding point to be debugged when the display module displays an image; wherein the target color is one of a first color, a second color, and a third color; Determining a target display parameter corresponding to the grayscale binding point according to the grayscale binding point and a preset gamma curve; Adjusting the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be adjusted until the display parameter of the sub-pixel of the target color in response to the adjusted driving electrical signal matches the target display parameter; The driving compensation signal corresponding to the sub-pixel of the target color at the grayscale binding point to be adjusted is determined according to the difference between the adjusted driving electrical signal and the initial driving electrical signal of the sub-pixel of the target color at the grayscale binding point to be adjusted.

7. A method for driving a display module, characterized in that: The outer surface of the display area of ​​the display module has a texture; the method comprises: Obtaining first compensation data; wherein the first compensation data is determined by obtaining appearance image information of the outer surface of the display area when the display module is not lit, and the first compensation data is used to perform display compensation on the display module; The display module is driven to display based on the first compensation data.

8. The method for driving a display module according to claim 7, wherein: The first compensation data is inverted color image information obtained by inverting the appearance image information; Optionally, the appearance image information is obtained under a preset brightness in the environment where the display module is located; Optionally, the preset brightness ranges from 100x1 to 300x1; Optionally, the display module comprises a display module, the display module comprises a display area, and the display area comprises the outer surface having a texture; Optionally, the display panel includes a display module and a film material, the film material is located at a light-emitting side of a display area of ​​the display module, and the film material is transparent and has a texture; Optionally, the inverted image information is obtained by respectively determining the grayscale value corresponding to each sub-pixel in the display area at a preset grayscale level according to the appearance image information, and inverting the grayscale value corresponding to each sub-pixel of the appearance image information according to the maximum grayscale value at the grayscale level, and determining the inverted grayscale value corresponding to each sub-pixel; Optionally, the first compensation data is used to respectively determine sub-compensation data corresponding to each sub-pixel in the display area, and the sub-compensation data corresponding to each sub-pixel is used to respectively compensate the driving electrical signal of each sub-pixel in the display area to obtain a compensated driving electrical signal; wherein, driving the display module to display based on the first compensation data includes: The display area is driven for display by the compensated driving electrical signal.

9. A display compensation device for a display module, characterized in that: The outer surface of the display area of ​​the display module has a texture; the device comprises: An appearance acquisition module, used to acquire appearance image information of an outer surface of the display area when the display module is not lit; A compensation determination module is used to determine first compensation data of a display area of ​​the display module according to the appearance image information; wherein the first compensation data is used to perform display compensation on the display module.

10. A display module, characterized in that: The outer surface of the display area of ​​the display module has a texture, and the display module includes a driving unit and a light-emitting unit; wherein the light-emitting unit includes a plurality of pixels, and the driving unit is used to perform display compensation on each pixel in the light-emitting unit based on the first compensation data; Wherein, the first compensation data is determined by the following steps: Acquiring appearance image information of an outer surface of a display area of ​​the display module when the display module is not lit; According to the appearance image information, first compensation data of a display area of ​​the display module is determined; wherein the first compensation data is used to perform display compensation on the display module.

Images