Gamma debugging method and device of display module and display module

Abstract

The invention relates to a gamma debugging method and device of a display module and the display module. The method comprises the steps that electrical parameters of target pixels in a target debugging area are adjusted, so that the voltage difference of the target pixels is consistent with the voltage difference of pixels in a first display area, and the voltage difference is the voltage difference between first electrode power supply voltage and second electrode power supply voltage; wherein the pixel density and the pixel arrangement mode of target pixels in the target debugging area are the same as the pixel density and the pixel arrangement mode of the first display area correspondingly, and the target pixels are part of pixels in the target debugging area; controlling a target pixel in a target debugging area in the second display area to emit light based on the adjusted electrical parameter so as to at least obtain a first display parameter of at least part of the target debugging area; and determining first gamma debugging data of the first display area according to the first display parameter and a first preset target parameter. By adopting the method provided by the invention, the accuracy of gamma debugging is improved, and the uniformity of the display module is better.

Description

Technical Field

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

[0002] With the development of display technology and people's increasing demand for a higher screen-to-body ratio, under-screen camera technology has emerged. Under-screen camera technology embeds photosensitive elements such as cameras on the backlight side of the display module to increase the screen-to-body ratio of the display device to a greater extent. However, the calibration and debugging of traditional displays using under-screen camera technology still needs to be improved. Summary of the invention

[0003] Based on this, it is necessary to provide a gamma debugging method, device, and display module for a display module that can facilitate improving the accuracy of correction and debugging of the camera area and the conventional display area in order to address the above technical problems.

[0004] In a first aspect, the present application provides a gamma debugging method for a display module, the display module comprising: a first display area and a second display area, the second display area comprising a target debugging area, the pixel density of the first display area being less than the pixel density of the second display area, wherein the gamma debugging method comprises: adjusting electrical parameters of target pixels in the target debugging area so that a voltage difference of the target pixels is consistent with a voltage difference of pixels in the first display area, the voltage difference being a voltage difference between a first electrode power supply voltage and a second electrode power supply voltage; wherein the pixel density and pixel arrangement of the target pixels in the target debugging area correspond to the same as the pixel density and pixel arrangement of the first display area, respectively, and the target pixels are part of the pixels in the target debugging area; controlling the target pixels in the target debugging area in the second display area to emit light based on the adjusted electrical parameters to at least obtain a first display parameter of at least part of the target debugging area; and determining first gamma debugging data of the first display area according to the first display parameter and a first preset target parameter.

[0005] In one embodiment, the electrical parameters include a first electrode power supply voltage, and adjusting the electrical parameters of the target pixel includes: when the target debugging area is adjacent to the first display area, adjusting the first electrode power supply voltage of the target pixel so that the adjusted first electrode power supply voltage is the same as the first electrode power supply voltage of the pixel in the first display area.

[0006] In one of the embodiments, the target debugging area is set on the outer periphery of the first display area.

[0007] In one of the embodiments, the electrical parameters include at least one of a first electrode power supply voltage and a second electrode power supply voltage; adjusting the electrical parameters of the target pixel includes: when the target debugging area is spaced apart from the first display area, adjusting the electrical parameters of the target pixel so that the adjusted voltage difference of the target pixel is the same as the voltage difference of the pixel in the first display area.

[0008] In one of the embodiments, determining the first gamma debugging data of the first display area according to the first display parameter and the first preset target parameter includes: when the first display parameter is inconsistent with the first preset target parameter, adjusting the grayscale voltage of the target pixel until the first display parameter is consistent with the first preset target parameter; determining the adjusted grayscale voltage as the target grayscale voltage; and associating the target grayscale voltage with the first preset target parameter, and recording them as the first gamma debugging data of the first display area.

[0009] In one embodiment, a pixel arrangement mode of the first display area is the same as or different from a pixel arrangement mode of the second display area.

[0010] In a second aspect, the present application provides a gamma debugging device for a display module, the display module comprising: a first display area and a second display area, the second display area comprising a target debugging area, the pixel density of the first display area being less than the pixel density of the second display area, wherein the gamma debugging device comprises: a driving module, connected to pixels in the target debugging area in the second display area respectively, for respectively controlling the luminous brightness of the pixels in the target debugging area; a detection module, the detection module being used to at least obtain a first display parameter of at least part of the target debugging area; a debugging module, connected to the detection module and the driving module respectively, for adjusting electrical parameters of target pixels in the target debugging area so that a voltage difference of the target pixels is consistent with a voltage difference of pixels in the first display area, the voltage difference being a voltage difference between a first electrode power supply voltage and a second electrode power supply voltage, and determining first gamma debugging data of the first display area according to the first display parameter and a first preset target parameter; wherein the pixel density and pixel arrangement of the target pixels in the target debugging area correspond to the same as the pixel density and pixel arrangement of the first display area respectively, and the target pixels are part of the pixels in the target debugging area.

[0011] In one of the embodiments, the debugging module is also used to control the driving module to control all pixels in the target debugging area to emit light; the detection module is also used to obtain the second display parameter of the target debugging area; the debugging module is also used to determine the second gamma debugging data of the second display area based on the second display parameter of the target debugging area and the second preset target parameter.

[0012] In one of the embodiments, the detection module senses the first display parameter and / or the second display parameter of the target debugging area through a light-sensitive detection surface, wherein the area of ​​the light-sensitive detection surface is smaller than or equal to the area of ​​the target debugging area.

[0013] In one of the embodiments, the target debugging area is disposed adjacent to the first display area; and the electrical parameter includes a first electrode power supply voltage.

[0014] In one embodiment, the first electrodes of the plurality of pixels in the second display area are connected to the driving module via a plurality of signal lines.

[0015] In one of the embodiments, the target debugging area is spaced apart from the first display area, and the electrical parameters include at least one of a first electrode power supply voltage and a second electrode power supply voltage; the debugging module is used to control the driving module to adjust the electrical parameters of the target pixel so that the voltage difference of the target pixel after adjustment is the same as the voltage difference of the pixel in the first display area.

[0016] In a third aspect, a display module is provided, the display module comprising: a display panel and a power module, the display panel comprising a first display area and a second display area, the pixel density of the first display area is less than the pixel density of the second display area,

[0017] The second display area includes a target debugging area, the target debugging area includes target pixels and non-target pixels, and the pixel density and pixel arrangement of the target pixels in the target debugging area are respectively the same as the pixel density and pixel arrangement of the first display area;

[0018] The first electrodes of the pixels in the first display area are disconnected and insulated from the first electrodes of the pixels in the second display area; the first electrodes of the pixels in the first display area and the first electrodes of the pixels in the second display area are electrically connected to the power module through different signal lines;

[0019] The first electrode of the target pixel is disconnected and insulated from the first electrode of the non-target pixel; the first electrode of the target pixel and the first electrode of the non-target pixel are electrically connected to the power module through different signal lines.

[0020] The gamma debugging method, device, and display module of the above-mentioned display module. The gamma debugging method is applied to a display module including a first display area and a second display area, and the pixel density of the first display area is less than the pixel density of the second display area. The gamma debugging method adjusts the electrical parameters of the target pixels in the target debugging area so that the voltage difference of the target pixels is consistent with the voltage difference of the pixels in the first display area, and the voltage difference is the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage; wherein the pixel density and pixel arrangement of the target pixels in the target debugging area correspond to the same pixel density and pixel arrangement as the first display area, respectively, and the target pixels are part of the pixels in the target debugging area, so that the pixel setting in the target debugging area can be equivalent to the pixel setting of the first display area, and the target debugging area is used to simulate the first display area. The display effect presented by the target pixels in the target debugging area when emitting light is also the same as that of the first display area, so that the target debugging area can completely simulate the display effect of the first display area. Then, based on the adjusted electrical parameters, the target pixels in the target debugging area in the second display area are controlled to emit light, so as to obtain at least part of the display parameters of the target debugging area, and then the first gamma debugging data of the first display area is determined according to the first display parameter and the first preset target parameter. Since the target debugging area can completely simulate the display effect of the first display area, the target debugging area can be equivalent to the first display area, so the data obtained by gamma debugging the target debugging area can be equivalent to the gamma debugging data of the first display area. By adopting the method of the present application, the gamma debugging data of the first display area can be obtained by gamma debugging the target debugging area in the second display area. In the process of gamma debugging, the first display area (for example, the under-screen camera area) can be simulated based on the target debugging area of ​​the second display area, and the display parameters of the target debugging area can be equivalent to the display parameters of the first display area. In this way, the display parameters of the first display area can be obtained without the need for a gamma debugging device to realize the alignment of the first display area, which can improve the accuracy and debugging efficiency of the gamma debugging of the first display area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 is a flowchart of a gamma debugging method in one embodiment;

[0023] Figure 2 It is a structural schematic diagram of a display module in one embodiment;

[0024] Figure 3 It is a structural schematic diagram of a display module in another embodiment;

[0025] Figure 4 It is a structural schematic diagram of a display module in another embodiment;

[0026] Figure 5 It is a structural schematic diagram of a display module in another embodiment;

[0027] Figure 6 is a structural diagram of a pixel circuit in one embodiment;

[0028] Figure 7 A schematic diagram of a flow chart of a method for determining gamma debugging data in one embodiment;

[0029] Figure 8 A schematic diagram of the structure of a gamma debugging device in one embodiment;

[0030] Fig. 9 It is a structural schematic diagram of a gamma debugging device in another embodiment;

[0031] Fig.10 It is a structural schematic diagram of a display module in one embodiment;

[0032] Fig.11 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment.

[0033] Description of reference numerals:

[0034] 10 - first display area, 20 - second display area, 30 - target debugging area, 31 - pixel, 40 - driving module, 50 - detection module, 60 - debugging module, 70 - display panel, 80 - power supply module. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The gamma debugging method provided in the embodiment of the present application can be applied to a gamma debugging device that provides a power supply voltage for a display module. The power supply voltage provided by the gamma debugging device will affect the brightness and chromaticity of the pixels in the display panel. Before the display module leaves the factory, the display panel needs to be gamma debugged to ensure that the display effect of the display module at each gray scale is the best effect.

[0040] For display modules that use an under-screen camera design, in order to ensure the light transmittance of the camera area in the display module, the pixel density of the area is generally reduced, so that the pixel density of the camera area is lower than that of the normal display area around it where no camera is placed. Since the pixel density and pixel arrangement of the camera area and the normal display area are different, when the display module is displaying, if the grayscale voltage is provided to the camera area and the normal display area based on the same gamma debugging data, the brightness of the camera area and the normal display area will be greatly different due to the different pixel densities of the camera area and the normal display area, affecting the display quality.

[0041] Based on this, in order to improve the uniformity of the display module, it is necessary to perform gamma debugging on the camera area and the normal display area respectively, and obtain gamma debugging data that meet the camera area and the normal display area respectively. Therefore, when the display module is displaying, different grayscale voltages are provided to the camera area and the normal display area based on the gamma debugging data corresponding to the camera area and the normal display area respectively, so as to ensure that the brightness of the camera area and the normal display area is consistent.

[0042] However, when gamma debugging the display module, a detection instrument is needed to detect the display parameters of the display module. The camera area and the normal display area need to be gamma debugged separately. Since the camera area is usually very small, the difference between it and the normal display area is large. Therefore, two detection instruments are needed to detect the display parameters of the camera area and the normal display area respectively, or one detection instrument is used to detect one area first, and then move to detect the other area. This may cause the following problems:

[0043] 1. The number of detection instruments is large, which increases the cost.

[0044] 2. There is an error between the detection results of the two detection instruments, resulting in inaccurate results.

[0045] 3. Generally speaking, the area of ​​the camera area is small. Therefore, if you want to provide a detection instrument that can detect the camera area, you need to specially customize the small-sized lens of the detection instrument, which is costly. In addition, the detection accuracy of the small-sized lens itself is low, not as high as the detection accuracy of the large-sized lens.

[0046] Fourth, if a detection instrument with a large-size lens is used to detect the camera area and the normal display area respectively, when the large lens detects the smaller camera area, the large lens will cover the normal display area around the camera area, thus causing inaccurate detection results of the camera area.

[0047] Based on the above technical problems, the inventors have found that by selecting a target debugging area in the second display area of ​​a display module including a first display area and a second display area, the target pixels in the target debugging area are controlled to emit light, so that the target debugging area is simulated as the first display area, so that only the target debugging area is taken as the object to obtain the display parameters of the target debugging area. When the target debugging area simulates the first display area, the display parameters of the first display area can be obtained. When the target debugging area does not simulate the first display area, the display parameters of the second display area can be obtained, thereby improving the accuracy of gamma debugging. The above is the core idea of ​​the present invention. The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0048] In one embodiment, Figure 1 As shown, a gamma adjustment method for a display module is provided, including steps S100 to S130. The gamma adjustment method is applied to Figure 2The display module shown includes: a first display area 10 and a second display area 20, and the pixel density of the first display area 10 is less than that of the second display area 20. The first display area can be a camera area of ​​the display module, and the first display area includes pixels and a light-transmitting area. The setting of the light-transmitting area can facilitate the camera not to be blocked, so that the camera can sense the external ambient light and ensure the normal operation of the camera. The second display area only includes pixels. Since the first display area includes pixels and a light-transmitting area, and the second display area only includes pixels, the transmittance of the first display area is higher than that of the second display area, but the pixel density of the first display area is lower than that of the second display area, and the pixel arrangement of the first display area is also different from that of the second display area.

[0049] Step S100 , adjusting the electrical parameters of the target pixel in the target debugging area so that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area.

[0050] The voltage difference is the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage. The pixel density and pixel arrangement of the target pixels in the target debugging area correspond to the same pixel density and pixel arrangement as the first display area. The target pixels are part of the pixels in the target debugging area.

[0051] Among them, the electrical parameters include at least one of the first electrode power supply voltage and the second electrode power supply voltage, and the voltage difference consistency can be understood as the voltage difference is completely consistent or the difference between the voltage difference of the target pixel and the voltage difference of the pixel in the first display area does not exceed 5% of the voltage difference of the target pixel.

[0052] Among them, after controlling the pixel density and pixel arrangement of the target debugging area to correspond to the pixel density and pixel arrangement of the first display area respectively, it is also necessary to control the voltage difference of the target pixels in the target debugging area to be consistent with the voltage difference of the pixels in the first display area, so that the target debugging area can better simulate the display of the first display area. However, due to the voltage drop problem of the power supply wiring in the display module, it is inevitable that the electrical signal will be lost during the transmission process. Therefore, it is necessary to adjust the electrical parameters of the target pixel according to the relative position relationship between the target debugging area and the first display area to ensure that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area.

[0053] Optionally, the electrical parameters of the target pixel are first adjusted so that the voltage difference of the target pixel is consistent with the voltage difference of the pixels in the first display area, and then the target pixel is controlled to emit light; or the target pixel is first controlled to emit light, and then the electrical parameters of the target pixel are adjusted so that the voltage difference of the target pixel is consistent with the voltage difference of the pixels in the first display area.

[0054] The pixel arrangement mode of the target pixels in the target debugging area is the same as the pixel arrangement mode of the pixels in the first display area, which may be equivalent to the minimum pixel repeating unit of the target pixels in the target debugging area being the same as the minimum pixel repeating unit of the pixels in the first display area. Optionally, the minimum pixel repeating unit may include a red sub-pixel, a green sub-pixel and a blue sub-pixel. For example, along the row direction, a column of red sub-pixels, a column of green sub-pixels and a column of blue sub-pixels are arranged in a circular manner in sequence. Optionally, in two adjacent columns of sub-pixels in which the red sub-pixels and the blue sub-pixels are arranged alternately along the column direction, the colors of the sub-pixels located in the same row are different. The row direction and the column direction may intersect, for example, may be perpendicular.

[0055] Preferably, the area of ​​the target debugging region is larger than the area of ​​the first display area.

[0056] Specifically, the target debugging area is located within the range of the second display area. When the second display area is displayed normally, all pixels in the second display area will emit light. In order to enable the target debugging area to simulate the first display area, only the target pixels in the target debugging area are controlled to emit light. The target pixels are multiple pixels in the target debugging area, and other pixels in the target debugging area except the target pixels do not emit light. Therefore, when the target pixels in the target debugging area light up, the pixel density and pixel arrangement of the target debugging area can correspond to the same pixel density and pixel arrangement of the first display area, respectively, so that the target debugging area can be simulated as the first display area.

[0057] Optionally, the first electrode of the target pixel in the target debugging area is disconnected and insulated from the first electrode of the non-target pixel in the target debugging area. In this way, the potentials of the first electrode of the target pixel and the first electrode of the non-target pixel in the target debugging area can be controlled separately.

[0058] Optionally, the first electrodes of the pixels in the second display area are disconnected and insulated from the first electrodes of the pixels in the first display area. With this arrangement, the potentials of the first electrodes of the pixels in the second display area and the first electrodes of the pixels in the first display area can be controlled separately, and the potentials of the first electrodes of the pixels in the second display area and the first electrodes of the pixels in the first display area can be different during normal display, so as to reduce the brightness difference between the first display area and the second display area during normal display, and improve the uniformity of the display panel.

[0059] Optionally, the first electrode of the target pixel in the target debugging area is disconnected and insulated from the first electrode of the pixel in the first display area. In this way, the potentials of the first electrode of the target pixel in the target debugging area and the first electrode of the pixel in the first display area can be controlled separately.

[0060] Optionally, the patterned first electrode may be formed by using isolation columns to isolate the first electrode, laser technology, a mask of a specific shape, etc.

[0061] The first electrode may be a cathode, and the second electrode may be an anode.

[0062] Step S110 , controlling the target pixels in the target debugging area in the second display area to emit light based on the adjusted electrical parameters, so as to at least obtain the first display parameters of at least part of the target debugging area.

[0063] Among them, after the voltage difference of the target pixel is adjusted to be consistent with the voltage difference of the pixel of the first display area, the target debugging area can be equivalent to the first display area. Therefore, the first display parameter of the acquired target debugging area can be used as the first display parameter of the first display area to facilitate the subsequent determination of the first gamma debugging data of the first display area.

[0064] Step S120 , determining first gamma debugging data of the first display area according to the first display parameter and the first preset target parameter.

[0065] Among them, the first display parameter is the actual first display parameter of the target debugging area measured, and can also be characterized as the first display parameter of the first display area. The first preset target parameter is the target first display parameter of the gamma debugging. The actual first display parameter of the target debugging area needs to reach the first preset target parameter, and then the grayscale voltage of the target debugging area at this time is recorded, and then the grayscale voltage and the first preset target parameter are correspondingly associated and stored, so as to determine the first gamma debugging data of the target debugging area, that is, the first gamma debugging data of the first display area.

[0066] In this embodiment, the electrical parameters of the target pixels in the target debugging area are first adjusted so that the voltage difference of the target pixels is consistent with the voltage difference of the pixels in the first display area, and the voltage difference is the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage; wherein the pixel density and pixel arrangement of the target pixels in the target debugging area correspond to the same pixel density and pixel arrangement of the first display area respectively, and the target pixels are part of the pixels in the target debugging area, so that the pixel setting in the target debugging area can be equivalent to the pixel setting of the first display area, and the target debugging area is used to simulate the first display area. The display effect presented by the target pixels in the target debugging area when emitting light is also the same as that of the first display area, so that the target debugging area can completely simulate the display effect of the first display area. Then, based on the adjusted electrical parameters, the target pixels in the target debugging area in the second display area are controlled to emit light, so as to at least obtain the first display parameters of at least part of the target debugging area, and then the first gamma debugging data of the first display area is determined according to the first display parameters and the first preset target parameters. Since the target debugging area can completely simulate the display effect of the first display area, the target debugging area can be equivalent to the first display area, so the data obtained by gamma debugging the target debugging area can be equivalent to the gamma debugging data of the first display area. By adopting the method of the present application, the gamma debugging data of the first display area can be obtained by gamma debugging the target debugging area in the second display area. In the process of gamma debugging, the first display area (for example, the under-screen camera area) can be simulated based on the target debugging area of ​​the second display area, and the first display parameters of the target debugging area can be equivalent to the first display parameters of the first display area. In this way, the first display parameters of the first display area can be obtained without the need for a gamma debugging device to realize the alignment of the first display area, which can improve the accuracy and debugging efficiency of the gamma debugging of the first display area.

[0067] In one embodiment, step S100, adjusting the electrical parameters of the target pixel in the target debugging area so that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area, including: when the target debugging area is adjacent to the first display area, the electrical parameters include the first electrode power supply voltage, and adjusting the first electrode power supply voltage of the target pixel so that the adjusted first electrode power supply voltage is the same as the first electrode power supply voltage of the pixel in the first display area.

[0068] Among them, after the first electrode power supply voltage of each pixel in the target pixel is adjusted, the pixel arrangement, pixel density and pixel brightness in the target debugging area are respectively the same as the pixel arrangement, pixel density and pixel brightness in the first display area.

[0069] Among them, Figure 3As shown, the target debugging area 30 and the first display area 10 are adjacently arranged, and the target debugging area 30 can be arranged on the outer peripheral side of the first display area 10, so that the target debugging area 30 and the first display area 10 have a higher similarity. Figure 4 As shown, the target debugging area 30 may also be in contact with the orthographic projection of the first display area 10 on the display module. When the target debugging area is adjacent to the first display area, the second electrode power supply voltage of the pixels in the target debugging area is basically consistent with that of the pixels in the first display area, and the difference between the second electrode power supply voltage of the pixels in the target debugging area and that of the pixels in the first display area is less than 5%. Optionally, obtaining the first display parameter of the target debugging area based on the adjusted electrical parameter includes: controlling the target pixel to emit light based on the adjusted electrical parameter to obtain the first display parameter of the target pixel. Wherein, in the process of obtaining the first display parameter, the present disclosure can control the first display area to emit light, and of course, it can also control the first display area not to emit light. Optionally, the gamma debugging method also includes: based on the original electrical parameters of the second display area, controlling at least part of the pixels in the second display area to emit light to obtain the second display parameter of the second display area; wherein the original electrical parameters are different from the adjusted electrical parameters; and determining the second gamma debugging data of the second display area according to the second display parameter of the second display area and the second preset target parameter.

[0070] The first preset target parameter and the second preset target parameter may be the same or different.

[0071] Specifically, when the target debugging area is adjacent to the first display area, the distance between the pixels in the target debugging area and the pixels in the first display area is small, so the voltage of the pixels in the target debugging area and the pixels in the first display area will not differ due to the voltage drop of line transmission. That is, the ELVDD (second electrode power supply) voltage of the pixels in the target debugging area and the pixels in the first display area is almost equal, so the electrical parameter is only the first electrode power supply voltage.

[0072] Among them, since the ELVDD (second electrode power supply) voltage of the target pixel and the pixel in the first display area is almost equal, the voltage difference of the target pixel can be made consistent with the voltage difference of the pixel in the first display area by only adjusting the first electrode power supply voltage of each pixel in the target pixel to be the same as the first electrode power supply voltage of the pixel in the first display area.

[0073] In this embodiment, when the target debugging area is adjacent to the first display area, the first electrode power supply voltage of the target pixel is adjusted to be the same as the first electrode power supply voltage of the pixel in the first display area, so that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area. Therefore, the display effect presented by the target pixel in the target debugging area when emitting light is also the same as that of the first display area, and the target debugging area can be simulated as the first display area.

[0074] In one embodiment, step S100, adjusting the electrical parameters of the target pixel in the target debugging area so that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area.

[0075] In the case where the target debugging area is spaced apart from the first display area, the electrical parameter includes at least one of the first electrode power supply voltage and the second electrode power supply voltage, and the electrical parameter of each pixel in the target pixel is adjusted respectively so that the adjusted voltage difference is the same as the voltage difference of the pixel in the first display area. The voltage difference is the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage.

[0076] Specifically, when the target debugging area is spaced from the first display area, the distance between the pixels in the target debugging area and the pixels in the first display area is large, so the voltages of the pixels in the target debugging area and the pixels in the first display area will be different due to the voltage drop of line transmission. That is, there is a difference in the ELVDD (second electrode power supply) voltage between the pixels in the target debugging area and the pixels in the first display area, so the voltage difference can be changed by adjusting the second electrode power supply voltage.

[0077] For example, Figure 5 As shown, the target debugging area 30 is spaced apart from the first display area 10 .

[0078] Among them, since the ELVDD (second electrode power supply) voltage of the pixels in the target debugging area and the pixels in the first display area is different, it is necessary to adjust the electrical parameters of each pixel in the target pixel so that the voltage difference of each pixel in the target pixel is the same as the voltage difference of the pixel in the first display area. The adjustment of the voltage difference can be achieved by adjusting at least one of the first electrode power supply voltage and the second electrode power supply voltage.

[0079] For example, Figure 6 As shown, a pixel circuit is provided, which includes: a driving transistor M1, a writing transistor M2, a capacitor C, and a light-emitting device D1, wherein the voltage received by the anode of the light-emitting device D1 is the second electrode power supply voltage (ELVDD), and the voltage received by the cathode of the light-emitting device D1 is the first electrode power supply voltage (ELVSS).

[0080] In this embodiment, when the target debugging area is spaced from the first display area, the voltage difference of the target pixel is adjusted to be the same as the voltage difference of the pixel in the first display area, so that the display effect presented by the target pixel in the target debugging area when emitting light is also the same as that of the first display area, and the target debugging area can be simulated as the first display area. Optionally, the gamma debugging method also includes: based on the original electrical parameters of the target debugging area, controlling all pixels in the target debugging area to emit light to obtain the second display parameters of the target debugging area. Among them, the original electrical parameters are different from the adjusted electrical parameters; according to the second display parameters of the target debugging area and the second preset target parameters, the second gamma debugging data of the second display area is determined. By performing gamma debugging on the target debugging area in the second display area, the first gamma debugging data of the first display area can be obtained, and when the second gamma debugging data of the second display area needs to be obtained later, the gamma debugging can be directly performed on the target debugging area, so that the first gamma debugging data of the first display area and the second gamma debugging data of the second display area can be obtained by taking the target debugging area as the object, thereby improving the consistency of the first display area and the second display area, thereby improving the accuracy of the gamma debugging, and making the uniformity of the display module better.

[0081] In one embodiment, the gamma debugging method further includes: determining a target power supply voltage according to a relative position relationship between the target debugging area and the first display area.

[0082] Wherein, if the relative position relationship between the target debugging area and the first display area makes the ELVDD (second electrode power supply) voltage of the pixels in the target debugging area and the pixels in the first display area the same, but the ELVSS (first electrode power supply) voltage is different, then the target power supply voltage may be the first electrode power supply voltage, conversely, if the relative position relationship between the target debugging area and the first display area makes the ELVSS (first electrode power supply) voltage of the pixels in the target debugging area and the pixels in the first display area the same, but the ELVDD (second electrode power supply) voltage is different, then the target power supply voltage may be the second electrode power supply voltage. If the relative position relationship between the target debugging area and the first display area makes the ELVSS (first electrode power supply) voltage and the ELVDD (second electrode power supply) voltage of the pixels in the target debugging area and the pixels in the first display area different, then the target power supply voltage may be at least one of the first electrode power supply voltage and the second electrode power supply voltage.

[0083] In this embodiment, the corresponding appropriate target power supply voltage is determined according to the relative position relationship between the target debugging area and the first display area, so that the electrical parameters of the target pixel can be better adjusted so that the voltage difference of the target pixel is consistent with the voltage difference of the first display area.

[0084] Determining first gamma debugging data of a first display area according to a first display parameter and a first preset target parameter includes:

[0085] When the first display parameter is inconsistent with the first preset target parameter, adjusting the grayscale voltage and / or the gamma register value of the target pixel until the first display parameter is consistent with the first preset target parameter;

[0086] determining the adjusted grayscale voltage and / or gamma register value as a target grayscale voltage and / or a target gamma register value;

[0087] The target grayscale voltage and / or the gamma register value are associated with the first preset target parameter and recorded as the first gamma debugging data of the first display area.

[0088] In one embodiment, Figure 7 As shown, step S120, determining the first gamma debugging data of the first display area according to the first display parameter and the first preset target parameter. It includes:

[0089] Step S700: When the first display parameter is inconsistent with the first preset target parameter, the grayscale voltage of the target pixel is adjusted until the first display parameter is consistent with the first preset target parameter.

[0090] The first display parameter may include at least one of brightness and chromaticity of the target debugging area within a set area when displaying an image, and the first preset target parameter may include at least one of target brightness data and target chromaticity data within a set area when displaying an image. When the first display parameter is inconsistent with the first preset target parameter, the grayscale voltage of the target pixel is adjusted until the first display parameter is consistent with the first preset target parameter, that is, the gamma debugging of the target debugging area is achieved.

[0091] Optionally, a pixel arrangement mode of the first display area is the same as or different from a pixel arrangement mode of the second display area.

[0092] Step S710 , determining the adjusted grayscale voltage as the target grayscale voltage.

[0093] Among them, after adjusting the grayscale voltage of the target pixel until the first display parameter is consistent with the first preset target parameter, the grayscale voltage that makes the first display parameter of the target debugging area consistent with the first preset target parameter is determined as the target grayscale voltage, that is, the grayscale voltage required to be provided to the target pixel in order to make the first display parameter of the target debugging area meet the standard.

[0094] Step S720 , the target grayscale voltage is associated with the preset target parameter and recorded as the first gamma debugging data of the first display area.

[0095] Among them, since the target debugging area is the simulated first display area, the first gamma debugging data determined by the target debugging area can be equivalent to the first gamma debugging data of the first display area, so the target grayscale voltage and the preset target parameter are correspondingly associated and stored as the first gamma debugging data of the first display area, so as to facilitate calling when the first display area is to display an image later. Based on the same method, the first gamma debugging data corresponding to each grayscale of the first display area can be determined, that is, the gamma debugging of the first display area is completed.

[0096] In this embodiment, by first obtaining the display parameters of the target debugging area when displaying the image, the actual display parameters of the target debugging area before gamma debugging are obtained, and the display parameters are used as reference data to facilitate the subsequent gamma debugging of the target debugging area. Then, it is determined whether the display parameters of the target debugging area are consistent with the preset target parameters. If the display parameters are inconsistent with the preset target parameters, it means that the target debugging area needs to be gamma debugged to present a better display effect. Therefore, the grayscale voltage of the target pixel is adjusted until the display parameters are consistent with the preset target parameters, thereby realizing the gamma debugging of the target debugging area. The target debugging area is the simulated first display area, so the determined first gamma debugging data is the first gamma debugging data of the first display area, and the gamma debugging of the first display area is realized.

[0097] It should be understood that although Figure 1 , 7 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1 , 7 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0098] In one embodiment, Figure 8 As shown, a gamma debugging device for a display module is provided. The gamma debugging device includes: a driving module 40 , a detection module 50 , and a debugging module 60 .

[0099] The display module includes: a first display area 10 and a second display area 20. The pixel density of the first display area 10 is smaller than that of the second display area 20, and the second display area 20 includes a target debugging area.

[0100] The driving modules 40 are respectively connected to the pixels 31 in the target debugging area 30 in the second display area 20 , and are used to respectively control the light emitting brightness of the pixels 31 in the target debugging area 30 .

[0101] The driving module 40 may be a display driver IC (DDIC), which can control the magnitude of the power supply voltage of the pixel, thereby controlling the light emitting brightness of the pixel.

[0102] The detection module 50 is used to obtain at least a first display parameter of at least a portion of the target debugging area 30 .

[0103] The detection module 50 may include an optical measurement probe, which can directly measure a first display parameter of the target debugging area 30 , and the first display parameter may include brightness data and chromaticity data.

[0104] The debugging module 60 is connected to the detection module 50 and the driving module 40 respectively, and is used to adjust the electrical parameters of the target pixels in the target debugging area 30 so that the voltage difference of the target pixels is consistent with the voltage difference of the pixels in the first display area 10, the voltage difference being the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage, and determine the first gamma debugging data of the first display area 10 according to the first display parameters and the preset target parameters.

[0105] The pixel density and pixel arrangement of the target pixels in the target debugging area 30 correspond to the pixel density and pixel arrangement of the first display area 10 , respectively, and the target pixels are part of the pixels in the target debugging area 30 .

[0106] Preferably, the area of ​​the target debugging region 30 is larger than the area of ​​the first display area 10 .

[0107] In this embodiment, the debugging module 60 is set to control the driving module 40 to control the target pixel in the target debugging area 30 to emit light, and the electrical parameters of the target pixel are adjusted so that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area 10. Therefore, the target debugging area 30 can be equivalent to the first display area 10. Therefore, the data obtained by gamma debugging the target debugging area 30 can be equivalent to the first gamma debugging data of the first display area 10. Since the target debugging area 30 is in the second display area 20, the first gamma debugging data of the first display area 10 can be obtained by performing gamma debugging on the target debugging area 30 in the second display area 20. In summary, the first gamma debugging data of the first display area 10 can be obtained by performing gamma debugging on the target debugging area 30 in the second display area 20. During the gamma debugging process, the first display area 10 (for example, the under-screen camera area) can be simulated based on the target debugging area 30 of the second display area 20, and the first display parameters of the target debugging area 30 can be equated with the first display parameters of the first display area 10. In this way, the gamma debugging device can obtain the first display parameters of the first display area 10 without aligning the first display area 10, thereby improving the accuracy and debugging efficiency of the gamma debugging of the first display area 10.

[0108] In one embodiment, please continue to see Figure 8 , the target debugging area 30 is spaced apart from the first display area 10 .

[0109] The debugging module 60 is further used to control the driving module 40 to control all pixels 31 in the target debugging area 30 to emit light.

[0110] Among them, when all pixels 31 in the target debugging area 30 are luminous, the target debugging area 30 is in a normal display state. At this time, the target debugging area 30 is luminous according to the normal luminous state of the second display area 20, so at this time the target debugging area 30 can be regarded as the second display area 20.

[0111] The detection module 50 is further configured to obtain a second display parameter of the target debugging area 30 .

[0112] Among them, the detection module 50 can directly obtain the second display parameter of the target debugging area 30 as the first display parameter of the second display area 20. Moreover, since the object detected by the detection module 50 is still the target debugging area 30, compared with the previous embodiment, the position of the detection module 50 does not need to be adjusted, and there is no need to replace lenses of other sizes. It is more convenient and more accurate, and the consistency of the detection results is also better.

[0113] The debugging module 60 is further used to determine the second gamma debugging data of the second display area 20 according to the second display parameter of the target debugging area 30 and the second preset target parameter.

[0114] Among them, the second display parameter of the target debugging area 30 is the measured actual display parameter of the target debugging area 30, which is represented as the second display parameter of the second display area 20 here, and the second preset target parameter is the target display parameter of the gamma debugging. The actual display parameter of the target debugging area 30 needs to reach the second preset target parameter, and then the grayscale voltage of the target debugging area 30 at this time is recorded, and then the grayscale voltage and the second preset target parameter are correspondingly associated and stored, so as to determine the second gamma debugging data of the target debugging area 30, that is, the second gamma debugging data of the second display area 20. It should be noted that the first preset target parameter of the first display area 10 and the second preset target parameter of the second display area 20 are the same, so that after the gamma debugging is performed on the first display area 10 and the second display area 20 respectively, the display effects of the first display area 10 and the second display area 20 are the same, so as to ensure the consistency of the display of the display module and improve the uniformity of the display module.

[0115] Exemplarily, the first electrodes of the plurality of pixels in the second display area 20 are connected to the driving module via a plurality of signal lines. The first electrodes of the target pixels in the target debugging area 30 may be disconnected from the insulation setting. The first electrodes of different target pixels in the target debugging area 30 are electrically connected to the driving module via different signal lines.

[0116] In this embodiment, the debugging module 60 is set to control the driving module 40 to control all pixels in the target debugging area 30 to emit light, and the first electrode voltage of all pixels in the target debugging area 30 is controlled to be the voltage corresponding to the gray scale currently required to be debugged in the gamma debugging, so that the target debugging area 30 emits light normally. At this time, the data obtained by gamma debugging the target debugging area 30 can be characterized as the second gamma debugging data of the second display area 20. Thus, gamma debugging is performed on the target debugging area 30 as the object, and the gamma debugging of the first display area 10 and the second display area 20 can be achieved respectively by controlling the brightness of the pixels in the target debugging area 30, so that the lens size of the detection module 50 does not need to be changed, making the gamma debugging more convenient and more accurate, and the consistency of the detection results is also better.

[0117] In one embodiment, the detection module senses the first display parameter and / or the second display parameter of the target debugging area through a light-sensitive detection surface, wherein the area of ​​the light-sensitive detection surface is smaller than or equal to the area of ​​the target debugging area.

[0118] The detection module may be an optical probe, and the light-sensitive detection surface may be a lens of the optical probe.

[0119] In this embodiment, the area of ​​the photosensitive detection surface of the detection module is less than or equal to the area of ​​the target debugging area, thereby ensuring that the detection module will only obtain the first display parameter or the second display parameter within the target debugging area when obtaining the first display parameter or the second display parameter, avoiding interference from light outside the target debugging area, and improving the accuracy of the detection results.

[0120] In one embodiment, Fig. 9 As shown, the target debugging area 30 is disposed adjacent to the first display area 10 .

[0121] The target debugging area 30 and the first display area 10 may be adjacently arranged so that the orthographic projection of the first display area 10 on the display module is within the range of the target debugging area 30, or the orthographic projection of the target debugging area 30 and the first display area 10 on the display module are in contact.

[0122] The debugging module 60 is used to control the driving module 40 to adjust the first electrode power supply voltage of each pixel in the target pixel respectively, so that the adjusted first electrode power supply voltage of the target pixel is the same as the first electrode power supply voltage of the pixel in the first display area 10.

[0123] Specifically, when the target debugging area is adjacent to the first display area, the distance between the pixels in the target debugging area and the pixels in the first display area is small, so the voltages of the pixels in the target debugging area and the pixels in the first display area will not differ due to the voltage drop of line transmission. That is, the ELVDD (second electrode power supply) voltage of the pixels in the target debugging area and the pixels in the first display area is almost equal, so only by adjusting the first electrode power supply voltage of each pixel in the target pixel to be the same as the first electrode power supply voltage of the pixel in the first display area, the voltage difference of the target pixel can be made consistent with the voltage difference of the pixel in the first display area.

[0124] Among them, the detection module 50 obtains the first display parameter of the target debugging area 30 to represent the first display parameter of the first display area, and then moves the position of the detection module 50 so that only the second display area is sensed in the photosensitive detection surface of the detection module 50, and then the second display parameter of the second display area can be obtained. The lens size of the detection module 50 does not need to be changed, which makes gamma debugging more convenient and more accurate, and the consistency of the detection results is also better.

[0125] In this embodiment, when the target debugging area is adjacent to the first display area, the debugging module adjusts the first electrode power supply voltage of the target pixel to be the same as the first electrode power supply voltage of the pixel in the first display area, so that the voltage difference of the target pixel is consistent with the voltage difference of the pixel in the first display area. Therefore, the display effect presented by the target pixel in the target debugging area when emitting light is also the same as that of the first display area, and the target debugging area can be simulated as the first display area.

[0126] In one embodiment, the debugging module is used to control the driving module to adjust the target power supply voltage of the target pixel respectively so that the voltage difference of the adjusted target pixel is the same as the voltage difference of the pixel in the first display area, wherein the target power supply voltage is at least one of the first electrode power supply voltage and the second electrode power supply voltage.

[0127] Specifically, when the target debugging area is spaced from the first display area, the distance between the pixels in the target debugging area and the pixels in the first display area is large, so the voltages of the pixels in the target debugging area and the pixels in the first display area will be different due to the voltage drop of line transmission. That is, there is a difference in the ELVDD (second electrode power supply) voltage between the pixels in the target debugging area and the pixels in the first display area. Since the ELVDD (second electrode power supply) voltages of the pixels in the target debugging area and the pixels in the first display area are different, it is necessary to adjust the voltage difference of each pixel in the target pixel so that the voltage difference of each pixel in the target pixel is the same as the voltage difference of the pixel in the first display area. The adjustment of the voltage difference can be achieved by adjusting at least one of the first electrode power supply voltage and the second electrode power supply voltage.

[0128] In this embodiment, when the target debugging area is spaced apart from the first display area, the debugging module adjusts the voltage difference of the target pixel to be the same as the voltage difference of the pixel in the first display area. Thus, the display effect presented by the target pixel in the target debugging area when emitting light is also the same as that of the first display area, and the target debugging area can be simulated as the first display area.

[0129] In one embodiment, Fig.10 As shown, a display module is provided, which includes: a display panel 70 and a power module 80, the display panel 70 includes a first display area 10 and a second display area 20, and the pixel density of the first display area 10 is less than the pixel density of the second display area 20.

[0130] The second display area 20 includes a target debugging area 30 , which includes target pixels and non-target pixels. The pixel density and pixel arrangement of the target pixels in the target debugging area 30 correspond to the same as the pixel density and pixel arrangement of the first display area 10 .

[0131] The first electrode of the pixel 31 of the first display area 10 is disconnected and insulated from the first electrode of the pixel 31 of the second display area 20; the first electrode of the pixel 31 of the first display area 10 and the first electrode of the pixel 31 of the second display area 20 are electrically connected to the power module 80 through different signal lines.

[0132] The first electrode of the target pixel is disconnected and insulated from the first electrodes of the non-target pixels.

[0133] The first electrode of the target pixel and the first electrode of the non-target pixel are electrically connected to the power module 80 through different signal lines.

[0134] In this embodiment, the second display area 20 of the display panel 70 includes a target debugging area 30, and the target debugging area 30 includes target pixels and non-target pixels. The pixel density and pixel arrangement of the target pixels in the target debugging area 30 correspond to the pixel density and pixel arrangement of the first display area 10, respectively, so that the target debugging area 30 can completely simulate the display effect of the first display area 10, and the target debugging area 30 can be equivalent to the first display area 10. Therefore, the data obtained by gamma debugging the target debugging area 30 can be equivalent to the gamma debugging data of the first display area 10. The first electrode of the pixel in the first display area 10 is disconnected and insulated from the first electrode of the pixel in the second display area 20; the first electrode of the pixel in the first display area 10 and the first electrode of the pixel in the second display area 20 are electrically connected to the power module 80 through different signal lines. The first electrode of the target pixel is disconnected and insulated from the first electrode of the non-target pixel. The first electrode of the target pixel and the first electrode of the non-target pixel are electrically connected to the power module 80 through different signal lines, so that the pixels in the first display area 10 and the pixels in the second display area 20 can be controlled separately, and their voltages can be different, so as to facilitate debugging and adjustment. Using the method of the present application, the gamma debugging data of the first display area 10 can be obtained by gamma debugging the target debugging area 30 in the second display area 20. During the gamma debugging process, the first display area 10 (for example, the camera area under the screen) can be simulated based on the target debugging area 30 of the second display area 20, and the display parameters of the target debugging area 30 are equal to the display parameters of the first display area 10. In this way, the display parameters of the first display area 10 can be obtained without the need for a gamma debugging device to realize the alignment of the first display area 10, which can improve the accuracy and debugging efficiency of the gamma debugging of the first display area 10.

[0135] In one embodiment, a computer device is provided, wherein the internal structure diagram of the computer device can be as follows: Fig.11 As shown. 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 gamma debugging method is implemented.

[0136] Those skilled in the art will understand that Fig.11 The structure shown in the figure is only a block diagram of a part of the 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 those shown in the figure, or combine certain components, or have a different arrangement of components.

[0137] 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.

[0138] 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-mentioned method embodiments are implemented.

[0139] 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.

[0140] 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 may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may 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).

[0141] 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.

[0142] The technical features of the above embodiments may be arbitrarily combined. 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.

[0143] 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 gamma adjustment method for a display module, characterized in that: The display module includes: a first display area and a second display area, the second display area includes a target debugging area, the pixel density of the first display area is less than the pixel density of the second display area, wherein the gamma debugging method includes: Adjusting the electrical parameters of the target pixels in the target debugging area so that the voltage difference of the target pixels is consistent with the voltage difference of the pixels in the first display area, wherein the voltage difference is the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage; wherein the pixel density and the pixel arrangement of the target pixels in the target debugging area correspond to the same as the pixel density and the pixel arrangement of the first display area, respectively, and the target pixels are part of the pixels in the target debugging area; Controlling the target pixels in the target debugging area in the second display area to emit light based on the adjusted electrical parameters, so as to at least obtain the first display parameters of at least part of the target debugging area; The first gamma debugging data of the first display area is determined according to the first display parameter and a first preset target parameter.

2. The method according to claim 1, characterized in that The electrical parameter includes a first electrode power supply voltage, and adjusting the electrical parameter of the target pixel includes: In a case where the target debugging area is adjacent to the first display area, adjusting the first electrode power supply voltage of the target pixel so that the adjusted first electrode power supply voltage is the same as the first electrode power supply voltage of the pixel in the first display area; Optionally, the target debugging area is set on a peripheral side of the first display area.

3. The method according to claim 1, characterized in that The electrical parameter includes at least one of a first electrode power supply voltage and a second electrode power supply voltage; Adjusting the electrical parameters of the target pixel includes: In the case where the target debugging area is spaced apart from the first display area, the electrical parameters of the target pixel are adjusted so that the adjusted voltage difference of the target pixel is the same as the voltage difference of the pixel in the first display area.

4. The method according to any one of claims 1 to 3, characterized in that: The determining the first gamma debugging data of the first display area according to the first display parameter and the first preset target parameter includes: When the first display parameter is inconsistent with the first preset target parameter, adjusting the grayscale voltage of the target pixel until the first display parameter is consistent with the first preset target parameter; Determining the adjusted grayscale voltage as a target grayscale voltage; Correspondingly associating the target grayscale voltage with the first preset target parameter, and recording the result as first gamma debugging data of the first display area; Optionally, a pixel arrangement manner of the first display area is the same as or different from a pixel arrangement manner of the second display area.

5. A gamma adjustment device for a display module, characterized in that: The display module includes: a first display area and a second display area, the second display area includes a target debugging area, the pixel density of the first display area is less than the pixel density of the second display area, wherein the gamma debugging device includes: A driving module, connected to the pixels in the target debugging area in the second display area, respectively, for controlling the light emitting brightness of the pixels in the target debugging area respectively; A detection module, the detection module is used to obtain at least a first display parameter of at least part of the target debugging area; A debugging module, connected to the detection module and the driving module respectively, for adjusting the electrical parameters of the target pixels in the target debugging area so that the voltage difference of the target pixels is consistent with the voltage difference of the pixels in the first display area, wherein the voltage difference is the voltage difference between the first electrode power supply voltage and the second electrode power supply voltage, and determining the first gamma debugging data of the first display area according to the first display parameter and the first preset target parameter; wherein the pixel density and the pixel arrangement of the target pixels in the target debugging area correspond to the same as the pixel density and the pixel arrangement of the first display area respectively, and the target pixels are part of the pixels in the target debugging area.

6. The gamma debugging device according to claim 5, characterized in that: The debugging module is also used to control the driving module to control all pixels in the target debugging area to emit light; The detection module is also used to obtain a second display parameter of the target debugging area; The debugging module is further used to determine the second gamma debugging data of the second display area according to the second display parameter of the target debugging area and the second preset target parameter; Optionally, the detection module senses the first display parameter and / or the second display parameter of the target debugging area through a light-sensitive detection surface, wherein the area of ​​the light-sensitive detection surface is smaller than or equal to the area of ​​the target debugging area.

7. The gamma debugging device according to claim 5, characterized in that: The target debugging area is arranged adjacent to the first display area; and the electrical parameter includes a first electrode power supply voltage.

8. The gamma debugging device according to claim 5, characterized in that: The first electrodes of the plurality of pixels in the second display area are correspondingly connected to the driving module via a plurality of signal lines.

9. The gamma debugging device according to claim 5, characterized in that: The target debugging area is spaced apart from the first display area, and the electrical parameter includes at least one of a first electrode power supply voltage and a second electrode power supply voltage; The debugging module is used to control the driving module to adjust the electrical parameters of the target pixel so that the voltage difference of the target pixel after adjustment is the same as the voltage difference of the pixels in the first display area.

10. A display module, characterized in that: The display module comprises: a display panel and a power module, the display panel comprises a first display area and a second display area, the pixel density of the first display area is smaller than the pixel density of the second display area, The second display area includes a target debugging area, the target debugging area includes target pixels and non-target pixels, and the pixel density and pixel arrangement of the target pixels in the target debugging area are respectively the same as the pixel density and pixel arrangement of the first display area; The first electrodes of the pixels in the first display area are disconnected and insulated from the first electrodes of the pixels in the second display area; the first electrodes of the pixels in the first display area and the first electrodes of the pixels in the second display area are electrically connected to the power module through different signal lines; The first electrode of the target pixel is disconnected and insulated from the first electrode of the non-target pixel; the first electrode of the target pixel and the first electrode of the non-target pixel are electrically connected to the power module through different signal lines.

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