Control Method of Display Device, Display Device and Computer Readable Storage Medium

Abstract

The present application discloses a control method for a display device, a display device, and a computer-readable storage medium. The display device includes a plurality of display areas, and the method includes: determining a correspondence relationship between a display brightness and an operating parameter; wherein the operating parameter is determined by at least one of an accumulated operating time, an accumulated operating current, and an accumulated operating voltage of the display device; respectively determining a current display brightness of each display area according to the correspondence relationship and the operating parameter of each display area; and respectively adjusting the display brightness of each display area according to the current display brightness of each display area. By the above manner, the problem of poor uniformity of the display area can be improved, and the display effect can be enhanced.

Description

Technical Field

[0001] This application relates to the technical field of display devices, and particularly to a control method for a display device, a display device, and a computer-readable storage medium. Background Art

[0002] In a display device, the display area will adjust the brightness of the brighter areas of the screen upward and the brightness of the darker areas of the screen downward according to the characteristics of the current display screen. Some areas with a pure black background may even have no brightness.

[0003] The inventors have long-term research and found that the light source working states of different display areas of the display device are not the same, and the brightness attenuation is not uniform. After long-term use, the areas that are frequently displayed at a high brightness will age faster and have a lower brightness than the areas that are used relatively less, resulting in a poor uniformity of the display panel of the display device and affecting the viewing experience. Summary of the Invention

[0004] To solve the above problems, this application provides a control method for a display device, a display device, and a computer-readable storage medium, which can improve the problem of poor uniformity of the display area and enhance the display effect.

[0005] To solve the above technical problems, a technical solution adopted by this application is: to provide a control method for a display device, the display device includes a plurality of display areas, and the method includes: determining the correspondence between the display brightness and the working parameters; where the working parameters are determined by at least one of the cumulative working time, cumulative working current, and cumulative working voltage of the display device; respectively determining the current display brightness of each display area according to the correspondence and the working parameters of each display area; and respectively adjusting the display brightness of each display area according to the current display brightness of each display area.

[0006] Among them, determining the correspondence between the display brightness and the working parameters includes: determining at least one detection area, and the detection area includes at least one display area; using a sensor to collect the display brightness of the detection area; obtaining the working parameters of the detection area from the display control system; and determining the correspondence between the display brightness and the working parameters of the corresponding display area according to the display brightness and the working parameters of the detection area.

[0007] Among them, the display control system is used to calculate the working parameters of each display area and record the working parameters.

[0008] Among them, the working parameter is the cumulative electric work determined by the working voltage, the working current, and the product of the working time of the working voltage and the working current; or the working parameter is the cumulative current-time product determined by the working current and the working time of the working current; or the working parameter is the cumulative working time; or the working parameter is the cumulative working current; or the working parameter is the cumulative working voltage.

[0009] Among them, according to the corresponding relationship and the working parameters of each display area, the current display brightness of each display area is determined respectively, including: obtaining the cumulative electric work of each display area; and using the cumulative electric work of each display area and the corresponding relationship to determine the current display brightness of each display area respectively.

[0010] Among them, according to the current display brightness of each display area, the display brightness of each display area is adjusted respectively, including: obtaining the expected display brightness of the display area; determining the deviation between the current display brightness and the expected display brightness; and if the deviation does not meet the preset deviation threshold range, adjusting the display brightness of the display area.

[0011] To solve the above technical problems, another technical solution adopted by this application is: to provide a display device, which includes: a display panel including a plurality of display areas; a backlight module disposed on one side of the display panel for providing display brightness for each display area; a controller connected to the display panel and the backlight module for determining the corresponding relationship between the display brightness and the working parameter; among them, the working parameter is determined by at least one of the cumulative working time, the cumulative working current, and the cumulative working voltage of the display device; and according to the corresponding relationship and the working parameters of each display area, the current display brightness of each display area is determined respectively; and according to the current display brightness of each display area, the display brightness of each display area is adjusted respectively.

[0012] Among them, the display device further includes a sensor connected to the controller for collecting the display brightness of a detection area, where each detection area includes at least one display area.

[0013] Among them, the sensor includes a first sensor and a second sensor; the first sensor and the second sensor respectively collect the display brightness of a first detection area and a second detection area, where the temperature changes corresponding to the first detection area and the second detection area are different.

[0014] To solve the above technical problems, another technical solution adopted by this application is: to provide a computer-readable storage medium for storing a computer program, which when executed by a processor, is used to implement the method provided by the above technical solution.

[0015] The beneficial effects of the embodiments of the present application are as follows: Different from the prior art, the control method of the display device provided in the present application, the display device includes a plurality of display areas, and the method includes: determining the correspondence between the display brightness and the working parameters; wherein, the working parameters are determined by at least one of the cumulative working time, cumulative working current, and cumulative working voltage of the display device; respectively determining the current display brightness of each display area according to the correspondence and the working parameters of each display area; respectively adjusting the current display brightness of each display area according to the current display brightness of each display area. By the above method, the current display brightness of the corresponding display area is determined by using the correspondence between the display brightness and the working parameters, and the current display brightness is adjusted, so that the display brightness of the display area can reach the expected display brightness, the problem of poor uniformity of the display area can be improved, and the display effect can be enhanced. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0017] Figure 1 is a schematic flowchart of the first embodiment of the control method of the display device provided by the present application;

[0018] Figure 2 is a schematic diagram of an application scenario of the control method of the display device provided by the present application;

[0019] Figure 3 is a schematic flowchart of the second embodiment of the control method of the display device provided by the present application;

[0020] Figure 4 is a schematic flowchart of an embodiment of step 31 provided by the present application;

[0021] Figure 5 is a schematic flowchart of the third embodiment of the control method of the display device provided by the present application;

[0022] Figure 6 is a schematic structural diagram of the first embodiment of the display device provided by the present application;

[0023] Figure 7 is a schematic structural diagram of the second embodiment of the display device provided by the present application;

[0024] Figure 8 is a schematic structural diagram of an embodiment of the backlight module provided by the present application;

[0025] Figure 9 It is a schematic structural diagram of an embodiment of a computer-readable storage medium provided by this application. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. It can be understood that the specific embodiments described herein are only used to explain this application, rather than limiting this application. Additionally, it should be noted that for the sake of description, only parts related to this application rather than all structures are shown in the accompanying drawings. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0027] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of this application. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0028] Refer to Figure 1 , Figure 1 It is a schematic flowchart of the first embodiment of the control method for a display device provided by this application. The method includes:

[0029] Step 11: Determine the correspondence between the display brightness and the working parameters; wherein, the working parameters are determined by at least one of the cumulative working time, cumulative working current, and cumulative working voltage of the display device.

[0030] In some embodiments, the display device includes a display panel, a backlight module, and a controller. The backlight module includes a plurality of independent light sources, such as LED lamp beads, light bars, etc. Each light source operates according to the provided drive current.

[0031] The controller controls the light sources in the backlight module to operate to display corresponding images on the display panel.

[0032] Thus, the display brightness of the images presented on the display panel is related to the backlight module.

[0033] Due to the aging of the light sources, the light sources corresponding to different regions of the display panel may have different aging degrees. For example, at the same brightness, the light sources with a longer usage time have a higher aging degree than those with a shorter usage time. For example, at the same working time, the light sources with a higher brightness have a higher aging degree than those with a lower brightness. For example, the light sources with a higher working current have a higher aging degree than those with a lower working current. For example, the light sources with a higher working voltage have a higher aging degree than those with a lower working voltage.

[0034] Therefore, there is a corresponding relationship between the display brightness and the working parameters. For example, a positive correlation means that the higher the value of the working parameter, the higher the display brightness; for example, a negative correlation means that the higher the value of the working parameter, the lower the display brightness.

[0035] Step 12: Determine the current display brightness of each display area according to the corresponding relationship and the working parameters of each display area.

[0036] In this embodiment, since the corresponding relationship is determined, the working parameters of each display area can be used to determine the current display brightness of each display area.

[0037] In other embodiments, corresponding sensors can be set in the display device for brightness detection. For example, a brightness sensor can be used for measurement.

[0038] Step 13: Adjust the display brightness of each display area according to the current display brightness of each display area.

[0039] In some embodiments, if the current display brightness is lower than the expected display brightness, the brightness of this display area is increased.

[0040] In some embodiments, if the current display brightness is higher than the expected display brightness, the brightness of this display area is decreased.

[0041] In an application scenario, it is combined with Figure 2 for illustration: The display device includes display area A, display area B, display area C, and display area D.

[0042] After determining the corresponding relationship between the display brightness and the working parameters, the current display brightness of multiple display areas is adjusted respectively according to the current display brightness of the multiple display areas.

[0043] If the current display brightness of display area A is lower than the expected display brightness, the brightness of this display area is increased; if the current display brightness of display area B is higher than the expected display brightness, the brightness of this display area is decreased; if the current display brightness of display area C is lower than the expected display brightness, the brightness of this display area is increased; if the current display brightness of display area D is higher than the expected display brightness, the brightness of this display area is decreased.

[0044] In an application scenario, the display device is used to display advertisement pictures. Therefore, the display device will frequently display many identical pictures, and accordingly, different display areas will also display different brightness levels. At this time, different aging degrees will appear, making the uniformity between the display areas of the entire display device worse. Then, the brightness of each display area can be adjusted in the manner of this embodiment to improve the problem of poor uniformity of the display areas.

[0045] In this embodiment, by determining the current display brightness of the corresponding display area based on the correspondence between the display brightness and the operating parameters and adjusting the current display brightness, the display brightness of the display area can reach the expected display brightness, the problem of poor uniformity of the display area can be improved, and the display effect can be enhanced.

[0046] Refer to Figure 3 , Figure 3 which is a schematic flowchart of the second embodiment of the control method for a display device provided by this application. The method includes:

[0047] Step 31: Determine at least one detection area, and each detection area includes at least one display area.

[0048] In some embodiments, the display area can be divided, and the divided display areas are used as detection areas. For example, the division is performed according to a preset row and column distribution. For example, the division is performed in a 3×3 manner. That is, every 9 display areas are determined as one detection area. In other embodiments, the division can also be performed in a 4×4 manner.

[0049] In some embodiments, refer to Figure 4 , step 31 can be the following process:

[0050] Step 311: Obtain the temperature distribution when the display device is operating.

[0051] Step 312: Divide the display device into multiple detection areas according to the temperature distribution.

[0052] During the brightness display process, the light source will generate corresponding heat, and the higher the display brightness of the area, the higher the corresponding temperature value. Therefore, the display areas of the display device can be divided according to the temperature value. For example, the display areas can be divided with every 5 degrees Celsius as a boundary. For example, the temperature range of the first detection area is 0 - 5 degrees Celsius, the temperature range of the second detection area is 5 - 10 degrees Celsius, the temperature range of the third detection area is 10 - 15 degrees Celsius, the temperature range of the fourth detection area is 15 - 20 degrees Celsius, the temperature range of the fifth detection area is 20 - 25 degrees Celsius, the temperature range of the sixth detection area is 25 - 30 degrees Celsius, and the temperature range of the seventh detection area is 30 - 35 degrees Celsius.

[0053] The display device is divided into multiple detection areas in this way.

[0054] Step 32: Use a sensor to collect the display brightness of the detection area.

[0055] A sensor can be set for each detection area to detect the display brightness of the detection area. For example, the sensor can be set in the direction of the light source optical path. In other embodiments, sensors can be set for some detection areas. In other embodiments, after determining the detection area, what is actually detected is the display brightness when the light source corresponding to the detection area is working.

[0056] Step 33: Obtain the working parameters of the detection area from the display control system.

[0057] The display control system is used to calculate the working parameters of each display area and record the working parameters.

[0058] In some embodiments, the working parameter is the cumulative electric work determined by the working voltage, the working current, and the product of the working time under the condition of the working voltage and the working current.

[0059] In some embodiments, the working parameter is the cumulative current-time product determined by the working current and the working time of the working current.

[0060] In some embodiments, the working parameter is the cumulative working time, or the working parameter is the cumulative working current; or the working parameter is the cumulative working voltage.

[0061] Step 34: Determine the corresponding relationship between the display brightness and the working parameters of the corresponding display area according to the display brightness and the working parameters of the detection area.

[0062] When the working parameter is the cumulative electric work determined by the working voltage, the working current, and the product of the working time under the condition of the working voltage and the working current, the corresponding relationship is the relationship between the display brightness and the cumulative electric work.

[0063] When the working parameter is the cumulative current-time product determined by the working current and the working time of the working current, the corresponding relationship is the relationship between the display brightness and the cumulative current-time product.

[0064] When the working parameter is the cumulative working time, the corresponding relationship is the relationship between the display brightness and the cumulative working time.

[0065] When the working parameter is the cumulative working current, the corresponding relationship is the relationship between the display brightness and the cumulative working current.

[0066] When the working parameter is the cumulative working voltage, the corresponding relationship is the relationship between the display brightness and the cumulative working voltage.

[0067] Through steps 31 - 33, multiple display brightness levels and operating parameters can be determined. Based on this, grouping is performed according to the display brightness levels and operating parameters of the corresponding display areas. At this time, fitting is performed on these display brightness levels and operating parameters to determine the corresponding relationship between the display brightness levels and operating parameters of the corresponding display areas.

[0068] Step 35: According to the corresponding relationship and the operating parameters of each display area, respectively determine the current display brightness of each display area.

[0069] After the corresponding relationship is determined, in the subsequent control process, in the display areas without sensor detection, the operating parameters of the display areas can be directly used, and combined with the corresponding relationship, the current display brightness of the display areas can be determined.

[0070] For example, when the operating parameter is the cumulative electric work, by obtaining the cumulative electric work of each display area; then using the cumulative electric work of each display area and the corresponding relationship, the current display brightness of each display area can be determined respectively.

[0071] Step 36: According to the current display brightness of each display area, respectively adjust the display brightness of each display area.

[0072] Step 36 has the same or similar technical solutions as the above embodiments and will not be elaborated here.

[0073] In this embodiment, by using a sensor to collect the display brightness of the detection area, the change of light decay can be accurately detected and calculated under various working environments. Furthermore, by adjusting the current display brightness, the display brightness of the display area can reach the expected display brightness, the problem of poor uniformity of the display area can be improved, and the display effect can be enhanced.

[0074] Refer to Figure 5 , Figure 5 is a schematic flowchart of the third embodiment of the control method for the display device provided in this application. The method includes:

[0075] Step 51: Determine the corresponding relationship between the display brightness and the operating parameters; where the operating parameters are determined by at least one of the cumulative working time, cumulative working current, and cumulative working voltage of the display device.

[0076] Step 52: According to the corresponding relationship and the operating parameters of each display area, respectively determine the current display brightness of each display area.

[0077] Steps 51 and 52 have the same or similar technical solutions as any of the above embodiments and will not be elaborated here.

[0078] Step 53: Obtain the expected display brightness of the display area.

[0079] The expected display brightness is the standard display brightness that the display area can achieve when not aged.

[0080] Step 54: Determine the deviation between the current display brightness and the expected display brightness.

[0081] In some embodiments, the deviation between the current display brightness and the expected display brightness is determined by the following formula: where L i is the current display brightness, and L 0 is the expected display brightness.

[0082] Step 55: If the deviation does not meet the preset deviation threshold range, adjust the display brightness of the display area.

[0083] In some embodiments, if the deviation does not meet the preset deviation threshold range, the pulse width of the driving current of the display area can be adjusted to 1 - L' of the pulse width corresponding to the current display brightness i times.

[0084] For example, if the deviation is negative, increase the pulse width of the driving current of the display area to increase the power of the light source, and thus the brightness of the light emitted by the light source becomes stronger.

[0085] For example, if the deviation is positive, decrease the pulse width of the driving current of the display area to reduce the power of the light source, and thus the brightness of the light emitted by the light source becomes weaker.

[0086] In this embodiment, by adjusting the pulse width, the duration of the driving current is changed, and thus the light-emitting time of the light source is changed. Furthermore, the current display brightness of the display area is correspondingly changed, enabling the display brightness of the display area to reach the expected display brightness, improving the problem of poor uniformity of the display area, and enhancing the display effect.

[0087] Refer to Figure 6 , Figure 6 is a schematic structural diagram of the first embodiment of the display device provided by the present application. The display device 60 includes: a display panel 61, a backlight module 62, and a controller 63.

[0088] Among them, the display panel 61 includes a plurality of display areas.

[0089] The backlight module 62 is disposed on one side of the display panel 61 and is used to provide corresponding display brightness for each display area.

[0090] The controller 63 is connected to the display panel 61 and the backlight module 62, and is used to determine the correspondence between the display brightness and the operating parameters; wherein, the operating parameters are determined by at least one of the cumulative operating time, the cumulative operating current, and the cumulative operating voltage of the display device 60; and according to the correspondence and the operating parameters of each display area, the current display brightness of each display area is respectively determined; and according to the current display brightness of each display area, the display brightness of each display area is respectively adjusted.

[0091] Refer to Figure 7 , Figure 7 FIG. is a schematic structural diagram of a second embodiment of the display device provided by the present application. The display device 60 includes: a display panel 61, a backlight module 62, a controller 63, and a sensor 64. The sensor 64 is a light sensor.

[0092] Wherein, the sensor 64 is connected to the controller 63 and is used to collect the display brightness of the detection area, wherein each detection area includes at least one display area.

[0093] The controller 63 is further used to determine a plurality of detection areas, each detection area includes at least one display area; use the sensor 64 to collect the display brightness of the detection area; and determine the correspondence between the display brightness and the operating parameters of the corresponding display area according to the display brightness of the detection area and the operating parameters.

[0094] The controller 63 is further used to obtain the temperature distribution of the display device during operation; and divide the display device into a plurality of detection areas according to the temperature distribution.

[0095] The controller 63 is further used to obtain the expected display brightness of the display area; determine the deviation between the current display brightness and the expected display brightness; and in response to the deviation not meeting the preset deviation threshold range, adjust the current display brightness of the display area.

[0096] The controller 63 is further used to determine the deviation between the current display brightness and the expected display brightness by the following formula: Wherein, L i is the current display brightness, and L 0 is the expected display brightness.

[0097] The controller 63 is further used to adjust the pulse width of the driving current of the display area to 1 - L' times the pulse width corresponding to the current display brightness. i times.

[0098] In an application scenario, the function relationship between the cumulative electric power and the display brightness of the backlight module 62 is derived from the display brightness collected by the sensor 64 and the cumulative electric power generated during the use of the backlight module 62 in each display area. The display brightness of the backlight module 62 in other areas is calculated according to the function, and then the display brightness balance of each display area of the display device 60 and the brightness of the display panel 61 are maintained by adjusting the display brightness of each backlight module 62. The specific implementation solution is as follows:

[0099] 1. Use the sensor 64 to measure the brightness of the backlight module 62 corresponding to the corresponding display area.

[0100] 2. Derive the function relationship between the cumulative electric power and the display brightness of the backlight module 62.

[0101] 3. Calculate the current display brightness of the backlight module 62 in other areas according to the function.

[0102] 4. Determine whether the deviation between the current display brightness and the expected display brightness meets the preset deviation threshold. If not, adjust the current display brightness of the display area.

[0103] If the deviation between the display brightness and the expected display brightness is greater than 0.05 or less than -0.05, the pulse width of the driving current in the corresponding backlight area is adjusted to 1 - L' times of the original, where L' represents the deviation between the current display brightness and the expected display brightness. i times, where L' i represents the deviation between the current display brightness and the expected display brightness.

[0104] In some embodiments, the sensor 64 includes a first sensor (not shown in the figure) and a second sensor (not shown in the figure). The first sensor and the second sensor respectively collect the display brightness of the first detection area and the second detection area, where the temperature changes in the first detection area and the second detection area are different. That is, corresponding sensors are set in areas with different temperature changes to collect the display brightness of the corresponding detection areas using separate sensors.

[0105] Combined Figure 8 for illustration:

[0106] When designing the backlight module 62, according to the heat generation situation of the backlight module 62, a brightness sensor 64 is placed in the area with a relatively high temperature rise, and a brightness sensor 64 is placed in the area with a relatively low temperature rise. Both sensors can measure the brightness of the backlight in the area where they are located. As Figure 8 shown, the backlight module 62 includes corresponding light source areas a, b, c, d, and e. A sensor 64 is set in the light source area b and a sensor 64 is set in the light source area e. The sensor 64 is used to detect the display brightness of the corresponding light source areas b and e.

[0107] The drive current of the corresponding backlight module 62 is collected by the sensor 64 as I 0 , and the pulse width D 0 The brightness value in the state is used as the expected display brightness L of the backlight module 62 0 .

[0108] When the display device 60 starts to work, the electric work W of the backlight module 62 in each display area is calculated according to the drive current, PWM pulse width and cumulative working duration of the backlight module 62

[0109] For example, when the display device 60 works for every 100 hours, the drive current is I 0 , and the pulse width D 0 The display brightness collected by the control sensor 64 in the state is L s , and then the relationship function f(W) between the brightness and the cumulative electric work is calculated by using the electric work and the display brightness

[0110] Use L i =W i ·f(W) formula to calculate the actual display brightness of the backlight module 62 in other display areas within the same temperature rise area

[0111] Then calculate the deviation L' between the actual display brightness and the expected display brightness i . If L' i is greater than 0.05 or less than -0.05, then the pulse width of the drive current of the corresponding backlight module 62 is adjusted to 1 - L' of the original i times

[0112] Through the sensor 64, the problem of uneven brightness of the display panel 61 caused by uneven usage time of the backlight modules 62 in different display areas can be solved. At the same time, due to the presence of the sensor, the change of light decay can be detected and calculated more accurately under various working environments

[0113] In some embodiments, the display device 60 may be an LCD (Liquid Crystal Display, liquid crystal display)

[0114] Refer to Figure 9 , Figure 9 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided by the present application. The computer-readable storage medium 90 is used to store a computer program 91, and when the computer program 91 is executed by a processor, it is used to implement the following method

[0115] Determine the correspondence between the display brightness and the operating parameters; wherein, the operating parameters are determined by at least one of the cumulative operating time, cumulative operating current, and cumulative operating voltage of the display device; respectively determine the current display brightness of each display area according to the correspondence and the operating parameters of each display area; adjust the display brightness of each display area according to the current display brightness of each display area.

[0116] It can be understood that when the computer program 91 is executed by the processor, it is also used to implement the method of any of the above embodiments, which will not be elaborated here.

[0117] In several implementation manners provided in the present application, it should be understood that the disclosed method and device can be implemented in other ways. For example, the device implementation manner described above is only illustrative. For example, the division of the circuit or unit is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0118] The unit described as a separated component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this implementation manner.

[0119] In addition, each functional unit in each implementation manner of the present application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0120] The above are only the implementation manners of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made according to the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A control method for a display device, characterized in that, the display device includes a plurality of display areas, and the method includes: determining at least one detection area, where the detection area includes at least one of the display areas; wherein, the detection area is divided according to the temperature distribution when the display device is working; determining the corresponding relationship between the display brightness and the working parameters of the corresponding display area according to the display brightness and the working parameters of the detection area; wherein, the working parameter is the cumulative electric work determined by the working voltage, the working current, and the product of the working time of the working voltage and the working current; or the working parameter is the cumulative current time product determined by the product of the working current and the working time of the working current; respectively determining the current display brightness of each of the display areas according to the corresponding relationship and the working parameters of each of the display areas; adjusting the display brightness of each of the display areas respectively according to the current display brightness of each of the display areas.

2. The method according to claim 1, characterized in that, the determining the corresponding relationship between the display brightness and the working parameters of the corresponding display area according to the display brightness and the working parameters of the detection area includes: collecting the display brightness of the detection area by using a sensor; acquiring the working parameters of the detection area from the display control system; determining the corresponding relationship between the display brightness and the working parameters of the corresponding display area according to the display brightness and the working parameters of the detection area.

3. The method according to claim 2, characterized in that, the display control system is used to calculate the working parameters of each display area and record the working parameters.

4. The method according to claim 1, characterized in that, the respectively determining the current display brightness of each of the display areas according to the corresponding relationship and the working parameters of each of the display areas includes: acquiring the cumulative electric work of each of the display areas; respectively determining the current display brightness of each of the display areas by using the cumulative electric work of each of the display areas and the corresponding relationship.

5. The method according to claim 1, characterized in that, the adjusting the display brightness of each of the display areas respectively according to the current display brightness of each of the display areas includes: acquiring the expected display brightness of the display area; determining the deviation between the current display brightness and the expected display brightness; if the deviation does not meet the preset deviation threshold range, adjusting the display brightness of the display area.

6. A display device, characterized in that, the display device includes: a display panel including a plurality of display areas; a backlight module disposed on one side of the display panel for providing display brightness for each of the display areas; A controller, connected to the display panel and the backlight module, is configured to determine at least one detection area, where the detection area includes at least one of the display areas; wherein, the detection area is divided according to the temperature distribution when the display device is operating; determine the corresponding relationship between the display brightness and the operating parameters of the corresponding display area according to the display brightness and the operating parameters of the detection area; wherein, the operating parameter is the cumulative electric work determined by the operating voltage, the operating current, and the product of the operating time of the operating voltage and the operating current; or the operating parameter is the cumulative current time product determined by the operating current and the product of the operating time of the operating current; and determine the current display brightness of each display area respectively according to the corresponding relationship and the operating parameters of each display area; adjust the display brightness of each display area respectively according to the current display brightness of each display area.

7. The display device according to claim 6, wherein, the display device further includes a sensor, the sensor is connected to the controller and is configured to collect the display brightness of the detection area, wherein each detection area includes at least one of the display areas.

8. The display device according to claim 7, wherein, the sensor includes a first sensor and a second sensor; the first sensor and the second sensor respectively collect the display brightness of a first detection area and a second detection area, wherein the temperature changes corresponding to the first detection area and the second detection area are different.

9. A computer-readable storage medium, wherein, the computer-readable storage medium is configured to store a computer program, and when the computer program is executed by a processor, it is configured to implement the method according to any one of claims 1-5.

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