Display panel brightness compensation method, display device and storage medium

Abstract

The application discloses a display panel brightness compensation method, a display device and a storage medium. The display panel comprises a plurality of preset pixels. The method comprises the following steps: detecting an actual temperature value of at least one preset pixel under a preset lighting condition; determining a brightness compensation value of the preset pixel under the actual temperature value according to a correspondence relationship between a plurality of experimental temperature values and brightness compensation values; and performing brightness compensation on the at least one preset pixel according to the determined brightness compensation value. In this way, the application performs brightness compensation according to the aging degree of the light-emitting device, and the brightness compensation effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel brightness compensation method, a display device and a storage medium. BACKGROUND

[0002] OLED is a new display technology, which is well known for its high contrast and wide color gamut. However, its low service life compared with traditional display technology limits its development and application, because the organic light-emitting material in OLED display panel ages with the increase of use time, eventually produces color deviation or brightness difference, which affects the display effect.

[0003] Therefore, there is an urgent need for a good brightness compensation scheme. SUMMARY

[0004] The technical problem solved by the present application is to provide a display panel brightness compensation method, a display device and a storage medium, which compensates brightness according to the aging degree of light-emitting device, and has good brightness compensation effect.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a display panel brightness compensation method, the display panel comprising a plurality of preset pixels, the method comprising: detecting an actual temperature value of at least one preset pixel under a preset lighting condition; determining a brightness compensation value of the preset pixel under the actual temperature value according to a corresponding relationship between a plurality of experimental temperature values and brightness compensation values; and compensating the brightness of the at least one preset pixel according to the determined brightness compensation value.

[0006] To solve the above technical problems, another technical solution adopted by the present application is to provide a display device, comprising a display panel, a plurality of temperature sensors and a processor, the display panel comprising an array layer, a light-emitting layer and a touch layer arranged in sequence, the light-emitting layer comprising a plurality of preset pixels; the plurality of temperature sensors are located in the array layer or the touch layer, and the temperature sensors are arranged corresponding to the preset pixels; the processor is coupled with the temperature sensors, and is used to cooperate with the temperature sensors to realize the brightness compensation method of any embodiment.

[0007] To solve the above technical problems, another technical solution adopted by the present application is to provide a computer readable storage medium, the computer readable storage medium is used to store program instructions, the program instructions can be executed to realize the test method of any embodiment.

[0008] The beneficial effects of the present application are: different from the prior art, the display panel brightness compensation method provided by the present application determines the aging degree of the light emitting device by acquiring the actual temperature value of the preset pixel in the display panel, and determines the corresponding brightness compensation value of the preset pixel under different aging degrees according to the corresponding relationship between the pre-stored experimental temperature value and the brightness compensation value, so as to better improve the display effect. The display device provided by the present application is provided with a temperature sensor corresponding to the preset pixel in the array layer or the touch layer, and the aging condition of the OLED light emitting device is recorded in real time through temperature change, so that more accurate brightness compensation is realized, and the normal display of the light emitting device is not easily affected. BRIEF DESCRIPTION OF DRAWINGS

[0009] The drawings incorporated into the specification and forming part of the specification, these drawings show the embodiments consistent with the present application, and together with the specification, are used to illustrate the technical solutions of the present application.

[0010] Figure 1 is a flowchart of an embodiment of the display panel brightness compensation method provided by the present application;

[0011] Figure 2 is a structural schematic diagram of an embodiment of the display device of the present application;

[0012] Figure 3 is a structural schematic diagram of another embodiment of the display device of the present application;

[0013] Figure 4 is Figure 3 the top view of the embodiment in the figure;

[0014] Figure 5 is a top view of another embodiment of the display device of the present application;

[0015] Figure 6 is a top view of another embodiment of the display device of the present application;

[0016] Figure 7 is a flowchart of another embodiment of the display panel brightness compensation method provided by the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and effect of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] Reference Figure 1 , Figure 1is a flowchart of an embodiment of a display panel brightness compensation method provided by the present application. The display panel comprises a plurality of preset pixels. The brightness compensation method comprises:

[0019] Step S101: detecting an actual temperature value of at least one preset pixel under a preset lighting condition.

[0020] Since the OLED light-emitting device is used for a long time, its aging degree will become larger and larger, and as the aging degree increases, the light-emitting brightness will decrease, and the built-in resistance of the light-emitting device will also increase, which means that the thermal effect of the light-emitting material will increase, that is, the actual temperature value of the pixel will gradually increase. Therefore, by comparing the actual temperature values of the same preset pixel at different time points, the aging state of the preset pixel material can be determined, and the display panel can be compensated for brightness according to the aging state.

[0021] Optionally, before step S101, it further comprises: reaching a preset detection condition. Optionally, the preset detection condition comprises that at least one preset pixel reaches a decay inflection point. As the use time increases, the aging degree of the pixel in the display panel will become larger and larger, and as the aging degree increases, one or more indicators of the brightness, chroma, and color accuracy of the pixel will decrease, and at some time points (for example, when the use time reaches 500h, etc.), the above indicators will decrease by a large amplitude, that is, they will reach the decay inflection point. Therefore, the decay inflection point can be a preset cumulative use time of the pixel, or one or more of a preset brightness value, a preset chroma value, and a preset color accuracy value. Subsequently, after the product is put into use, when at least one preset pixel reaches the above-mentioned preset decay inflection point, the display panel detects the actual temperature of the preset pixel, so as to determine the aging state of the preset pixel.

[0022] Optionally, the preset lighting condition comprises a fixed preset gray scale or a fixed preset current density. It should be noted that the actual temperature value is detected each time under the condition that the preset pixel is lit at a fixed gray scale (for example, 128 gray scales or 255 gray scales) or a fixed current density.

[0023] Optionally, the preset pixel can be all the pixels in the display panel, that is, the actual temperature values of all the pixels in the display panel are detected; alternatively, the preset pixel can also be some pixels preset in advance. For example, the display panel can be divided into a plurality of display regions, and the temperature of one or more preset pixels in the display region is detected, and the temperature value of one preset pixel or the average value or the median value of the temperature values of a plurality of preset pixels is taken as the actual temperature value of the display region under the preset lighting condition.

[0024] Step S102: determining a brightness compensation value of the preset pixel at the actual temperature value according to a preset corresponding relationship between a plurality of experimental temperature values and brightness compensation values.

[0025] Specifically, the experimental temperature values can be temperature values or temperature ranges corresponding to the multiple decay inflection points obtained in the production research and development stage, including T1, T2, T3…, and since the storage area (for example, an IC chip) has a brightness compensation algorithm pre-written therein, the algorithm includes a mapping relationship between the experimental temperature values and the brightness compensation values, so that the brightness compensation value of the preset pixel can be calculated based on the actual temperature value and the experimental temperature value of the same preset pixel, and the brightness compensation value of the preset pixel at each gray scale or current density can be obtained according to the Gamma curve pre-written in the storage area. The brightness to be compensated is realized by adjusting the voltage, current density, or luminous efficiency.

[0026] Optionally, before step S102, the method further includes: performing light emission tests on the multiple display panels under different lighting durations under a preset lighting condition to obtain multiple experimental temperature values corresponding to the multiple decay inflection points and corresponding brightness values.

[0027] Specifically, the decay inflection points can be obtained by multiple test experiments on the multiple display panels in the production research and development stage. For example, a luminance meter can be used to perform a light emission test under continuous lighting, and the luminance, chrominance, color accuracy, and the like of a preset pixel in the display panel can be detected every interval, and the temperature of the preset pixel can be detected at the same time, so that the change curves of the luminance and / or chrominance, color accuracy, and the like corresponding to different temperatures over time can be obtained, and the multiple decay inflection points, the multiple experimental temperature values, and the brightness values corresponding to the multiple decay inflection points can be determined according to the decay amplitudes in the change curves and pre-stored in the storage area.

[0028] Optionally, step S102 can further include:

[0029] A1: determining one of the experimental temperature values corresponding to the actual temperature value as a base temperature value; determining a previous experimental temperature value of the experimental temperature value as a base temperature value as a target temperature value; wherein the multiple experimental temperature values are arranged in order from low to high. As the material ages, the temperature value of the pixel gradually increases, and the luminance value gradually decreases. The brightness compensation value is the difference between the base luminance value corresponding to the base temperature value and the target luminance value corresponding to the target temperature value.

[0030] Specifically, the pre-stored multiple experimental temperature values (T1, T2, T3…) are arranged in order from low to high, that is, as time changes, the material gradually ages, and the temperature gradually increases, T1 n-1 , T n , and T n+1The temperatures are 68℃, 70℃, and 72℃ respectively. An experimental temperature T that is closest to and no greater than the actual temperature value can be used. n =70℃, which is determined as the base temperature value. This experimental temperature value T is then... n The previous experimental temperature value T n-1 =68℃ is used as the target temperature value, that is, the purpose of brightness compensation is to restore the current brightness to the brightness state when the temperature is 68℃.

[0031] A2: Determine the brightness compensation value based on the base brightness value corresponding to the base temperature value and the target brightness value corresponding to the target temperature value.

[0032] Specifically, the base temperature value T n The corresponding base brightness value is L n Target temperature value T n-1 The corresponding target brightness value is L n-1 Because the brightness value gradually decreases as the pixel temperature value gradually increases, therefore L n >L n-1 In this method, the brightness value corresponding to the previous experimental temperature value is used as the target for each brightness compensation, meaning the previous display state is used as the target state for the current brightness compensation. Compared to the technique of using the initial state as the target state for each brightness compensation, this application results in a smaller difference in display effect before and after brightness compensation, which is more acceptable to the human eye. Furthermore, as the usage time increases, due to material aging, the actual brightness compensation value may not be able to fully reach the target brightness compensation value. Since the target brightness compensation value of this application is calculated from two adjacent experimental brightness values, the brightness value to be compensated each time is smaller, thus making each brightness compensation more sufficient and the brightness compensation effect better.

[0033] It should be noted that if the baseline temperature value determined in this test is the same as the baseline temperature value determined in the previous test, it indicates that the pixel aging is not significant, and the subsequent determination of brightness compensation value and brightness compensation steps can be omitted. If the baseline temperature value determined in this test is higher than the baseline temperature value determined in the previous test, it indicates that the pixel material has aged to a certain extent, and subsequent brightness compensation can be performed. The determined brightness compensation value will overwrite the brightness compensation value determined in the previous test to avoid errors in the brightness compensation value used in subsequent brightness compensation and to save storage space.

[0034] Step S103: Perform brightness compensation on at least one preset pixel according to the determined brightness compensation value.

[0035] Optionally, when the preset pixels are all the pixels in the display panel, the brightness compensation can be performed on each pixel according to the brightness compensation value of each pixel, so as to realize the brightness compensation of the display panel. Alternatively, when the display panel is divided into a plurality of display areas, the preset pixels are one or more pixels in the display panel, the brightness compensation value of each display area can be calculated according to the actual temperature value and the experimental temperature value of each display area under the preset lighting condition, and the brightness compensation can be performed on each display area, so as to realize the brightness compensation of the display panel.

[0036] Referring to Figure 2 , Figure 2 is a structural schematic diagram of an embodiment of a display device of the present application, which can be a mobile phone, a tablet, a wearable device, etc. The display device comprises:

[0037] a display panel comprising an array layer 1, a light-emitting layer 2 and a touch layer 3 which are sequentially stacked, the light-emitting layer 2 comprising a plurality of preset pixels 21. Specifically, the array layer 1 is used to control the light-emitting devices in the light-emitting layer 2, and the touch layer 3 covers the light-emitting layer 2 and is used to sense the position of the display panel which is touched.

[0038] a plurality of temperature sensors 31 located in the array layer 1 and / or the touch layer 3, the temperature sensors 31 being arranged correspondingly to the preset pixels 21. The temperature sensors 31 can accurately detect the temperature value of each preset pixel 21, and record the aging condition of the OLED light-emitting device in real time through temperature change, so as to facilitate the subsequent realization of more accurate brightness compensation; and since the temperature sensors 31 are located in the array layer 1 below the light-emitting layer 2 and / or the touch layer 3 above the light-emitting layer 2, the temperature sensors 31 are not easy to contact the light-emitting devices in the light-emitting layer 2. Figure 2 In the embodiment, the temperature sensors 31 are located in the array layer 1, and in other embodiments, the temperature sensors 31 can also be located in the touch layer 3.

[0039] a processor (not shown in the figure) coupled to the temperature sensors 31 and used to cooperate with the temperature sensors 31 to realize the brightness compensation method in any of the embodiments.

[0040] Referring to Figure 3 and Figure 4 , Figure 3 is a structural schematic diagram of another embodiment of a display device of the present application, Figure 4 is Figure 3 a top view of the embodiment.

[0041] As shown in Figure 3 , the touch layer 3 comprises a plurality of first touch wires 311 arranged side by side and a plurality of second touch wires 312 arranged side by side, wherein the first touch wires 311 and the second touch wires 312 comprise temperature-sensitive materials, and the first touch wires 311 and the second touch wires 312 form the temperature sensors 31. As shown inFigure 4 As shown, the first touch wires 311 and the second touch wires 312 cross each other to form a plurality of openings 313 (shown by dashed lines in the figure), and at least one preset pixel 21 (encircled by dotted lines in the figure) is arranged at a position of each opening 313.

[0042] Since the touch electrode is usually composed of a plurality of metal wires (for example, the first touch wires 311 and the second touch wires 312 in the present application), and the first touch wires 311 and the second touch wires 312 further comprise temperature-sensitive materials, the first touch wires 311 and the second touch wires 312 can not only form the touch electrode, but also serve as the temperature sensor 31. Since the temperature sensor 31 can be formed at the same time as the touch layer 3, the manufacturing process of the temperature sensor 31 is saved, the cost is reduced, and the multifunctionality of the touch layer 3 is improved. In addition, since the temperature sensor 31 is located in the touch layer 3, away from the array layer 1, the change of the resistance or the dielectric constant of the wires in the array layer 1 caused by the heat conduction of the temperature sensor 31 is avoided, so that the accurate control of the array layer 1 on the light-emitting layer 2 is avoided. Specifically, the temperature-sensitive material can be one or more of metal, alloy or semiconductor material, for example, metal platinum Pt, nickel Ni, etc.

[0043] Specifically, as shown in an embodiment, two adjacent first touch wires 311 and two adjacent second touch wires 312 cross and enclose an opening 313, and one preset pixel 21 is arranged in the opening 313. The preset pixel 21 comprises one red sub-pixel 211, one green sub-pixel 212 and one blue sub-pixel 213. Of course, in other embodiments, a preset pixel can also comprise sub-pixels of other quantities or colors, for example, a preset pixel can comprise one red sub-pixel and one green sub-pixel or one blue sub-pixel and one green sub-pixel, and the present application does not limit the arrangement of the pixels. Figure 4

[0044] Referring to Figure 5 , Figure 5 is a top view of another embodiment of the display device of the present application. In the embodiment, two adjacent first touch wires 311 and two adjacent second touch wires 312 cross and enclose an opening 313, and two preset pixels 21 are arranged in the opening 313.

[0045] Referring to Figure 6 , Figure 6 ​is a top view of another embodiment of the display device of the present application, in the present embodiment, two first touch wires 311 (i.e. one first touch wire 311 is further arranged between the two first touch wires 311) and two adjacent second touch wires 312 are arranged in a staggered manner to form an opening 313, and one preset pixel 21 is arranged in the opening 313.

[0046] It should be noted that, since the touch layer 3 is arranged above the light-emitting layer 2, in order to improve the transmittance of the OLED light-emitting device, the orthographic projection of the first touch wire 311 and the second touch wire 312 on the array layer 1 is located outside each sub-pixel (including the red sub-pixel 211, the green sub-pixel 212 and the blue sub-pixel 213). In other embodiments, for a display panel with a high PPI, a plurality of preset pixels 21 can be arranged in one opening 313.

[0047] Referring to Figure 7 , Figure 7 is a flowchart of another embodiment of the display panel brightness compensation method provided by the present application.

[0048] The brightness compensation method comprises:

[0049] Step S201: In response to reaching a preset detection condition, the temperature values of the first touch wire 311 and the second touch wire 312 around the plurality of preset pixels 21 are detected.

[0050] The first touch wire 311 and the second touch wire 312 with temperature-sensitive material are used as the temperature sensor 31. The first touch wire 311 and the second touch wire 312 not only constitute the touch electrode, but also can be used as the temperature sensor 31, which saves the preparation process of the temperature sensor 31, reduces the cost, and at the same time improves the multifunctionality of the touch layer 3 without affecting the functions of the array layer 1 and the light-emitting layer 2.

[0051] Optionally, step S201 can further comprise: sequentially and individually lighting the plurality of preset pixels 21 under a preset lighting condition, and detecting the actual temperature value of the corresponding preset pixel 21 when each preset pixel 21 is individually lighted.

[0052] In the present embodiment, when at least one preset pixel 21 of the display device reaches the preset detection condition, the preset pixel 21 is individually lighted under a fixed preset gray scale or a fixed preset current density, and the actual temperature value of the corresponding preset pixel 21 is detected. Since the temperature values of the first touch wire 311 and the second touch wire 312 around the preset pixel 21 will immediately increase when the preset pixel 21 is lighted, by individually lighting the preset pixel 21 and detecting the temperature, the temperature value of the preset pixel 21 being detected can be avoided from being affected by the temperature increase of other pixels around when a plurality of preset pixels 21 are lighted at the same time, the detection accuracy is improved, and thus the accuracy of subsequent brightness compensation is improved.

[0053] Further, when the plurality of preset pixels 21 are sequentially and individually lightened, the preset pixel 21 lightened in the former time is arranged apart from the preset pixel 21 lightened in the latter time. For example, referring to FIG. 2, the preset pixels 21 circled by the dotted line in the middle row can be sequentially and individually lightened in the odd columns in the odd rows, and then the preset pixels 21 in the even columns in the even rows are sequentially and individually lightened. Since the preset pixels 21 lightened in the former time and the preset pixels 21 lightened in the latter time are arranged apart from each other by other preset pixels 21 or pixels, the influence of the temperature rise of the first touch wires 311 and the second touch wires 312 around the preset pixel 21 lightened in the former time on the temperature of the first touch wires 311 and the second touch wires 312 around the preset pixel 21 lightened in the latter time is further reduced, the detection accuracy is improved, and thus the accuracy of the subsequent brightness compensation is improved. Figure 4 Further, when the plurality of preset pixels 21 are sequentially and individually lightened, the preset pixel 21 lightened in the former time is arranged apart from the preset pixel 21 lightened in the latter time. For example, referring to FIG. 2, the preset pixels 21 circled by the dotted line in the middle row can be sequentially and individually lightened in the odd columns in the odd rows, and then the preset pixels 21 in the even columns in the even rows are sequentially and individually lightened. Since the preset pixels 21 lightened in the former time and the preset pixels 21 lightened in the latter time are arranged apart from each other by other preset pixels 21 or pixels, the influence of the temperature rise of the first touch wires 311 and the second touch wires 312 around the preset pixel 21 lightened in the former time on the temperature of the first touch wires 311 and the second touch wires 312 around the preset pixel 21 lightened in the latter time is further reduced, the detection accuracy is improved, and thus the accuracy of the subsequent brightness compensation is improved.

[0054] Further, when the plurality of preset pixels 21 are sequentially and individually lightened, the preset pixel 21 lightened in the former time is arranged apart from the preset pixel 21 lightened in the latter time. For example, referring to FIG. 2, the preset pixels 21 circled by the dotted line in the middle row can be sequentially and individually lightened in the odd columns in the odd rows, and then the preset pixels 21 in the even columns in the even rows are sequentially and individually lightened. Since the preset pixels 21 lightened in the former time and the preset pixels 21 lightened in the latter time are arranged apart from each other by other preset pixels 21 or pixels, the influence of the temperature rise of the first touch wires 311 and the second touch wires 312 around the preset pixel 21 lightened in the former time on the temperature of the first touch wires 311 and the second touch wires 312 around the preset pixel 21 lightened in the latter time is further reduced, the detection accuracy is improved, and thus the accuracy of the subsequent brightness compensation is improved.

[0055] Step S202: determining the actual temperature value of the preset pixel 21 based on the temperature values of the first touch wires 311 and the second touch wires 312 around each preset pixel 21. Please refer to FIG. 2 and FIG. 3. Figures 4-6 For the preset pixel 21 to be detected, the temperature values of the first touch wires 311 and the second touch wires 312 around the opening 313 where the preset pixel 21 is located are detected.

[0056] Optionally, step S202 can further include:

[0057] B1: obtaining the average value of the temperature values of the first touch wires 311 and the second touch wires 312 around each preset pixel 21. Specifically, the temperature values of the two first touch wires 311 and the two second touch wires 312 around the opening 313 where each preset pixel 21 is located are detected respectively, and the average value of the above four temperature values is obtained.

[0058] B2: take the average value as the actual temperature value of the preset pixel 21. Take the average value of the aforementioned four temperature values as the actual temperature value of the preset pixel 21.

[0059] Since the orthographic projection of each preset pixel 21 on the touch layer 3 is surrounded by the touch wires, when the average value of the temperature values of the touch wires around each preset pixel 21 is taken as the actual temperature value of the preset pixel 21, the temperature of the preset pixel 21 can be more accurately reflected, thereby improving the accuracy of the brightness compensation.

[0060] Alternatively, step S202 can further include:

[0061] C1: obtain the maximum temperature values of the first touch wires 311 and the second touch wires 312 around each preset pixel 21. Specifically, the maximum temperature values of the two first touch wires 311 and the two second touch wires 312 around the opening 313 where each preset pixel 21 is located are detected respectively. Since the local position of the touch wires around the preset pixel 21 to be lit usually has the maximum temperature value on the same touch wire, the actual temperature value of the corresponding preset pixel 21 is more accurately determined by the maximum temperature value.

[0062] C2: take the average value of the multiple maximum temperature values as the actual temperature value. Taking the average value of the aforementioned four maximum temperature values as the actual temperature value of the preset pixel 21 can accurately reflect the temperature of the surrounded preset pixel 21, thereby improving the accuracy of the brightness compensation.

[0063] In other embodiments, only one, two or three temperature values of the touch wires around the preset pixel 21 can be detected to obtain the actual temperature value of the preset pixel 21, so as to reduce the detection time and increase the efficiency.

[0064] Step S203: obtain the average value of the actual temperature values of all preset pixels 21 in the display panel. Since the display panel includes multiple preset pixels 21, and each preset pixel 21 has different heating degree and aging degree due to different distances to the power supply, by obtaining the average value of the actual temperature values of all preset pixels 21, the subsequent uniform brightness compensation of the display panel is facilitated, and the display effect is improved.

[0065] Step S204: determine the brightness compensation value of the preset pixel 21 at the average value according to the pre-stored corresponding relationship between the multiple experimental temperature values and the brightness compensation values.

[0066] Step S205: perform brightness compensation on all preset pixels 21 in the display panel according to the determined brightness compensation value.

[0067] The average of the measured actual temperature values and the retrieved experimental temperature values are used to obtain a brightness compensation value by an algorithm built in the storage area, and all the pixels in the display panel are uniformly compensated in brightness so that each pixel reaches the target brightness value, and the uniform display effect of the display panel is improved, and problems such as bright spots, dark spots and uneven brightness are avoided.

[0068] In an embodiment, the present application provides a computer readable storage medium for storing program instructions executable to implement the test method in any of the preceding embodiments. The computer readable storage medium can be located in an IC chip of the display device as a storage area.

[0069] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for brightness compensation of a display panel, characterized in that, The display panel comprises a plurality of preset pixels, a plurality of first touch wires arranged side by side, and a plurality of second touch wires arranged side by side, the first touch wires and the second touch wires intersect with each other to form a plurality of openings, and at least one preset pixel is arranged at each opening position; wherein the first touch wires and the second touch wires contain temperature-sensitive materials; The method comprises: detecting an actual temperature value of at least one preset pixel under a preset lighting condition; wherein it comprises: detecting the temperature values of the first touch wires and the second touch wires around the at least one preset pixel; determining the actual temperature value of the preset pixel based on the temperature values of the first touch wires and the second touch wires around each of the preset pixels; determining a brightness compensation value of the preset pixel at the actual temperature value according to a pre-stored corresponding relationship between a plurality of experimental temperature values and brightness compensation values; performing brightness compensation on the at least one preset pixel according to the determined brightness compensation value.

2. The luminance compensation method according to claim 1, characterized in that, The step of determining the brightness compensation value of the preset pixel at the actual temperature value according to the pre-stored corresponding relationship between a plurality of experimental temperature values and brightness compensation values further comprises: determining one of the experimental temperature values corresponding to the actual temperature value as a base temperature value, and determining the previous one of the experimental temperature values as the base temperature value as a target temperature value; wherein the plurality of experimental temperature values are arranged in order from low to high; determining the brightness compensation value according to the base brightness value corresponding to the base temperature value and the target brightness value corresponding to the target temperature value.

3. The luminance compensation method according to claim 2, wherein, Before the step of obtaining the pre-stored corresponding relationship between a plurality of experimental temperature values and brightness compensation values, it further comprises: performing light emission tests on a plurality of display panels under different lighting durations under a preset lighting condition to obtain a plurality of experimental temperature values corresponding to a plurality of decay inflection points and corresponding brightness values.

4. The luminance compensation method of claim 1, wherein, The step of determining the actual temperature value of the preset pixel based on the temperature values of the first touch wires and the second touch wires around each of the preset pixels comprises: obtaining an average value of the temperature values of the first touch wires and the second touch wires around each of the preset pixels; and taking the average value as the actual temperature value of the preset pixel; or, obtaining a maximum temperature value of the first touch wires and the second touch wires around each of the preset pixels; and taking an average value of a plurality of maximum temperature values as the actual temperature value.

5. The luminance compensation method of claim 1, wherein, The step of detecting an actual temperature value of at least one preset pixel under a preset lighting condition comprises: when the preset pixels that are lit are multiple, sequentially and individually lighting the multiple preset pixels under the preset lighting condition, and detecting the actual temperature value of the corresponding preset pixel when each of the preset pixels is individually lit.

6. The luminance compensation method according to claim 5, wherein, The step of sequentially and individually lighting the multiple preset pixels under the preset lighting condition comprises: The preset pixels that are lit in sequence are arranged at intervals.

7. The luminance compensation method according to claim 6, wherein The openings in which the preset pixels that are lit in sequence are arranged are formed by the first touch wires and the second touch wires intersecting each other.

8. The luminance compensation method of claim 1, wherein, Further comprising: obtaining an average of the actual temperature values of all the preset pixels in the display panel; The step of determining the brightness compensation value of the preset pixel at the actual temperature value according to the pre-stored corresponding relationship between the experimental temperature values and the brightness compensation values comprises: determining the brightness compensation value of the preset pixel at the average according to the pre-stored corresponding relationship between the experimental temperature values and the brightness compensation values. According to the determined brightness compensation value, all the preset pixels in the display panel are compensated for brightness.

9. The luminance compensation method of claim 1, wherein, Before the step of detecting the actual temperature value of at least one preset pixel under a preset lighting condition, further comprising: reaching a preset detection condition.

10. The luminance compensation method according to claim 9, wherein, The preset detection condition comprises at least one preset pixel reaching a decay inflection point.

11. The luminance compensation method of claim 9, wherein, The preset lighting condition comprises a fixed preset gray scale or a fixed preset current density.

12. A display device, characterized by comprising: Further comprising: The display panel comprises an array layer, a light-emitting layer, and a touch layer arranged in sequence, and the light-emitting layer comprises a plurality of preset pixels. A plurality of temperature sensors are arranged in the array layer and / or the touch layer, and the temperature sensors correspond to the preset pixels. A processor is coupled to the temperature sensors and is configured to cooperate with the temperature sensors to implement the brightness compensation method of any one of claims 1-11.

13. The display device of claim 12, wherein The touch layer comprises a plurality of first touch wires arranged side by side and a plurality of second touch wires arranged side by side, the first touch wires and the second touch wires intersect each other to form a plurality of openings, and at least one preset pixel is arranged at each opening; wherein the first touch wires and the second touch wires comprise temperature-sensitive materials, and the first touch wires and the second touch wires form the temperature sensors.

14. The display device of claim 13, wherein, One preset pixel is arranged at each opening.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store program instructions that can be executed to implement the brightness compensation method of any one of claims 1-11.

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