Display screen calibration method, device and electronic equipment

Abstract

The present application provides a display screen correction method, device and electronic device, which relate to the field of display technology, wherein the method comprises: determining the temperature of a box in a display screen, determining a temperature correction parameter of the box according to the temperature of the box, determining a target cold-heat conversion coefficient of each sub-pixel according to the temperature correction parameter and the initial cold-heat conversion coefficient of each sub-pixel in the box, and correcting the display parameters of each sub-pixel according to the target cold-heat conversion coefficient of each sub-pixel, wherein the initial cold-heat conversion coefficient is used to correct the initial display parameters of each sub-pixel. The technical solution provided by the present application can improve the uniformity of the luminance of the display screen and enhance the display effect of the display screen.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display screen calibration method, device and electronic device. Background Art

[0002] With the development of display technology and the popularization of display screens, people have put forward higher and higher requirements on the display quality of display screens. The more uniform the luminance of the display screen is, the higher its display quality is and the better the display effect is.

[0003] However, due to the influence of manufacturing and packaging processes, the luminance of each sub-pixel in the display screen is easily affected by temperature and changes, which will affect the display effect of the display screen. Summary of the invention

[0004] In view of this, the present application provides a display screen calibration method, device and electronic device to improve the uniformity of the display screen's luminance and enhance the display effect of the display screen.

[0005] In order to achieve the above objectives, in a first aspect, an embodiment of the present application provides a display screen calibration method, comprising:

[0006] Determining the temperature of a box in the display screen;

[0007] Determining a temperature correction parameter of the box according to the temperature of the box;

[0008] Determining a target cold-to-heat conversion coefficient of each sub-pixel in the housing according to the temperature correction parameter and an initial cold-to-heat conversion coefficient of each sub-pixel, wherein the initial cold-to-heat conversion coefficient is used to correct an initial display parameter of each sub-pixel;

[0009] The display parameters of each of the sub-pixels are corrected according to the target cold-to-heat conversion coefficient of each of the sub-pixels.

[0010] As an optional implementation of the embodiment of the present application, determining the temperature of the box in the display screen includes:

[0011] Detecting the temperature of each module in the box;

[0012] The average value of the temperatures of the modules is determined as the temperature of the box.

[0013] As an optional implementation of the embodiment of the present application, determining the temperature of the box in the display screen includes:

[0014] The detected temperature of one of the modules in the box is determined as the temperature of the box.

[0015] As an optional implementation of the embodiment of the present application, determining the temperature correction parameter of the box according to the temperature of the box includes:

[0016] The temperature correction parameter of the cabinet is determined according to the temperature of the cabinet, the cold screen temperature and the hot screen temperature, wherein the cold screen temperature is the temperature of the cabinet when the display screen is just powered on, and the hot screen temperature is the temperature of the cabinet after the display screen runs at maximum brightness in a white screen state for a set time.

[0017] As an optional implementation of the embodiment of the present application, determining the temperature correction parameter of the box according to the temperature of the box includes:

[0018] The temperature correction parameters of the cabinet are determined according to the temperature of the cabinet, the cold screen temperature, the hot screen temperature, the current ambient temperature and the target ambient temperature, wherein the cold screen temperature is the temperature of the cabinet when the display screen is just powered on, and the hot screen temperature is the temperature of the cabinet after the display screen runs at maximum brightness in a white screen state for a set time, and the cold screen temperature and the hot screen temperature are determined at the target ambient temperature.

[0019] As an optional implementation of the embodiment of the present application, determining the temperature correction parameter of the box according to the temperature of the box, the cold screen temperature, the hot screen temperature, the current ambient temperature and the target ambient temperature includes:

[0020] Determine a first temperature difference and a second temperature difference, wherein the first temperature difference is a difference between the temperature of the box and the temperature of the cold screen, and the second temperature difference is a difference between the target ambient temperature and the current ambient temperature;

[0021] The temperature correction parameter of the box is determined according to the ratio of the sum of the first temperature difference and the second temperature difference to a third temperature difference, wherein the third temperature difference is the difference between the hot screen temperature and the cold screen temperature.

[0022] As an optional implementation of the embodiment of the present application, the display parameters include: brightness and / or chromaticity.

[0023] In a second aspect, an embodiment of the present application provides a display screen correction device, comprising:

[0024] A determination module, used to determine the temperature of the box in the display screen;

[0025] Determining a temperature correction parameter of the box according to the temperature of the box;

[0026] Determining a target cold-to-heat conversion coefficient of each sub-pixel in the housing according to the temperature correction parameter and an initial cold-to-heat conversion coefficient of each sub-pixel, wherein the initial cold-to-heat conversion coefficient is used to correct an initial display parameter of each sub-pixel;

[0027] The correction module is used to correct the display parameters of each sub-pixel according to the target cold-heat conversion coefficient of each sub-pixel.

[0028] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory and a processor, the memory being used to store a computer program; the processor being used to execute the method described in the first aspect or any one of the implementations of the first aspect when calling the computer program.

[0029] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method described in the first aspect or any one of the embodiments of the first aspect is implemented.

[0030] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on an electronic device, the electronic device executes the display screen correction method described in any one of the first aspects above.

[0031] The display screen correction scheme provided in the embodiment of the present application first determines the temperature of the cabinet in the display screen, determines the temperature correction parameters of the cabinet according to the temperature of the cabinet, then determines the target cold-hot conversion coefficient of each sub-pixel according to the temperature correction parameters and the initial cold-hot conversion coefficient of each sub-pixel in the cabinet (used to correct the initial display parameters of each sub-pixel), and then corrects the display parameters of each sub-pixel according to the target cold-hot conversion coefficient of each sub-pixel to make the luminance of each sub-pixel more uniform, thereby improving the uniformity of the luminance of the display screen and improving the display effect of the display screen. In addition, the scheme can automatically correct the display parameters of the sub-pixels of each cabinet according to the different temperatures of each cabinet of the display screen, without the need for manual adjustment, thereby improving the practicality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a flow chart of a display screen calibration method provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the structure of the box provided in the embodiment of the present application;

[0034] Figure 3 A schematic diagram of the structure of a display screen correction device provided in an embodiment of the present application;

[0035] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the embodiments of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0037] With the development of display technology and the popularization of display screens, people have put forward higher and higher requirements for the display quality of display screens. The more uniform the luminance of the display screen is, the higher the display quality and the better the display effect is. Affected by the manufacturing and packaging processes, the luminance of each sub-pixel in the display screen is easily affected by temperature and changes, which will affect the display effect of the display screen.

[0038] In order to solve the above problems, before the display screen leaves the factory, images of the cold screen state and the hot screen state of the display screen can be collected, and then processed by the algorithm of the control system to generate the corresponding cold and hot screen conversion coefficients.

[0039] When the ambient temperature changes, the user can manually adjust the parameters on the receiving card. The adjustment range of the parameters on the receiving card can be 0% to 100+%. After the receiving card receives the parameters adjusted by the user, it adjusts the proportion of the cold and hot screen conversion coefficient implementation process through the parameters. For example, when the 0% parameter acts on the cold and hot conversion coefficient, the effect of the coefficient is equal to turning off the cold and hot screen correction. When the 50% parameter acts on the cold and hot conversion coefficient, the effect of the coefficient is equal to 50% of the hot screen effect. When the 100% parameter acts on the cold and hot conversion coefficient, the effect of the coefficient is not lost. In this way, a better display effect can be achieved.

[0040] However, the above method requires the user to manually adjust the parameters, which is not automated enough, and the adjustment process depends entirely on the feel of the hand without any measurement standard. In view of this, the embodiment of the present application provides a display screen calibration method, which can automatically adjust the display parameters of each pixel in the display screen according to the ambient temperature, improve the uniformity of the display screen luminance, and enhance the display effect of the display screen.

[0041] Figure 1 A flow chart of a display screen calibration method provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the method may include the following steps:

[0042] S110, determining the temperature of the cabinet in the display screen.

[0043] The display screen can be a light-emitting diode (LED) display screen, or an organic light-emitting diode (OLED) display screen, a sub-millimeter light-emitting diode (Mini-Light-Emitting Diode, Mini-LED) display screen, a micron light-emitting diode (Micro-Light Emitting Diode, Micro-LED) display screen, etc. In the following description of this embodiment, the display screen is an LED display screen as an example for exemplary description.

[0044] The surface temperature of the display screen is not uniform. Usually, the temperature change of the display screen is based on a single cabinet, and the temperature of different cabinets will also vary. Therefore, when calibrating the display screen, it can be calibrated in cabinets.

[0045] Figure 2 A schematic diagram of the structure of the box provided in the embodiment of the present application, such as Figure 2 As shown, the box may include a receiving card and multiple modules, each module may be integrated with a micro controller unit (MCU) and a temperature sensor, and the receiving card may access the temperature sensor on any module to obtain the temperature value through a universal asynchronous receiver / transmitter (UART) interface on a high-density connector in combination with a multiplexer and a driver.

[0046] Since the temperature change of the module has the greatest impact on the luminance of each sub-pixel in the cabinet, the temperature of the module in the cabinet can be used as the cabinet temperature to improve the accuracy of calibration.

[0047] Since the temperatures of the modules are usually different, the temperatures of the modules in the box can be collected, and then the average value of the temperatures of the modules can be determined as the temperature of the box.

[0048] Due to cost reasons, some display screens only have temperature sensors on some modules of the cabinet. In this case, the temperature of the modules with temperature sensors can be collected, and then the average value can be taken as the cabinet temperature. Furthermore, the temperature of any module with temperature sensors in the cabinet can be collected, and the temperature of the module can be taken as the cabinet temperature.

[0049] S120, determining a temperature correction parameter of the box according to the temperature of the box.

[0050] Specifically, the temperature correction parameters of the cabinet can be determined according to the temperature of the cabinet, the cold screen temperature and the hot screen temperature, wherein the cold screen temperature is the temperature of the cabinet when the display screen is just powered on, and the hot screen temperature is the temperature of the cabinet after the display screen runs at maximum brightness in a white screen state for a set time. The setting time can be longer, such as 24 hours, so that the hot screen temperature is closer to the limit temperature that the cabinet can reach. Both the cold screen temperature and the hot screen temperature can be predetermined and stored in the display screen.

[0051] Specifically, the temperature correction parameter can be calculated according to the following formula (1):

[0052] T_manual=(T_LED-T_c) / (T_h-T_c)............Formula (1)

[0053] Among them, T_manual is the temperature correction parameter, T_LED is the temperature of the box, T_c is the cold screen temperature, and T_h is the hot screen temperature.

[0054] When detecting the cabinet temperature, the current ambient temperature may be different from the ambient temperature when determining the cold screen temperature and the hot screen temperature (i.e., the target ambient temperature), and considering the influence of the ambient temperature on the temperature correction parameters, the temperature correction parameters of the cabinet can also be determined based on the cabinet temperature, the cold screen temperature, the hot screen temperature, the current ambient temperature and the target ambient temperature to improve the accuracy of the obtained temperature correction parameters.

[0055] Specifically, the first temperature difference and the second temperature difference can be determined first, and then the temperature correction parameter of the box can be determined according to the ratio of the sum of the first temperature difference and the second temperature difference to the third temperature difference, wherein the first temperature difference is the difference between the temperature of the box and the cold screen temperature, the second temperature difference is the difference between the target ambient temperature and the current ambient temperature, and the third temperature difference is the difference between the hot screen temperature and the cold screen temperature.

[0056] Specifically, the temperature correction parameter can be calculated according to the following formula (2):

[0057] T_manual=(T_LED-T_c+T_amb0-T_amb) / (T_h-T_c)...Formula (2)

[0058] Among them, T_LED-T_c is the first temperature difference, T_amb0-T_amb is the second temperature difference, T_amb0 is the target ambient temperature, T_amb is the current ambient temperature, and T_h-T_c is the third temperature difference.

[0059] Since the temperature of the heat shield is close to the maximum temperature that the box can reach, the temperature of the heat shield is greater than or equal to the temperature of the box, that is, the temperature correction parameter is less than or equal to 1.

[0060] S130 , determining a target cold-to-heat conversion coefficient of each sub-pixel according to the temperature correction parameter and the initial cold-to-heat conversion coefficient of each sub-pixel in the box.

[0061] The initial cold-to-hot conversion coefficient is used to correct the initial display parameters of each sub-pixel. The initial display parameters may include brightness and / or chromaticity. In the following description of this embodiment, the initial display parameter is taken as brightness for example.

[0062] The box may include multiple pixels, each of which may include a red sub-pixel, a blue sub-pixel, and a green sub-pixel. Since the intensity of light of different colors loses differently as the temperature rises (red light loses the most), the initial cold-to-heat conversion coefficients of the red sub-pixel, blue sub-pixel, and green sub-pixel of a pixel are also different; and since the temperature of different areas of the box is different (usually the area with the highest temperature is near the receiving card, and the temperature decreases toward the edge of the box), the initial cold-to-heat conversion coefficients of sub-pixels of the same color at different pixels may also be different.

[0063] The initial cold-to-hot conversion coefficient can be between 0 and 2. If the initial cold-to-hot conversion coefficient is greater than 1, the brightness of the corresponding sub-pixel after correction will increase. If the initial cold-to-hot conversion coefficient is less than 1, the brightness of the corresponding sub-pixel after correction will decrease. If the initial cold-to-hot conversion coefficient is equal to 1, the brightness of the corresponding sub-pixel after correction will not change.

[0064] For example, the initial cold-to-heat conversion coefficient of sub-pixel A is 0.8, and the initial brightness is 10, then the brightness of the sub-pixel after correction of the initial cold-to-heat conversion coefficient can be 8; the initial cold-to-heat conversion coefficient of sub-pixel B is 1.2, and the initial brightness is 10, then the brightness of the sub-pixel after correction of the initial cold-to-heat conversion coefficient can be 12.

[0065] Specifically, the target cold-to-heat conversion coefficient of each sub-pixel can be calculated according to the following formula (3):

[0066] α_Final=(α-1)*T_manual+1.............Formula (3)

[0067] Wherein, α_Final is the target cold-to-heat conversion coefficient of each sub-pixel, and α is the initial cold-to-heat conversion coefficient of each sub-pixel.

[0068] Since the temperature correction parameter is less than or equal to 1, according to the above formula (3), if α<1, then α≤α_Final<1; if α>1, then 1<α_Final≤α; if α=1, then α_Final=1.

[0069] For example, the initial cold-to-heat conversion coefficient of sub-pixel A is 0.8. If the temperature correction parameter is 0.5, the target cold-to-heat conversion coefficient of the sub-pixel is 0.9; the initial cold-to-heat conversion coefficient of sub-pixel B is 1.2. If the temperature correction parameter is 0.5, the target cold-to-heat conversion coefficient of the sub-pixel is 1.1.

[0070] S140 , calibrating display parameters of each sub-pixel according to the target cold-to-heat conversion coefficient of each sub-pixel.

[0071] If α_Final<1, it means that the brightness of the corresponding sub-pixel needs to be reduced. Since α_Final≥α at this time, it means that the reduction amplitude is less than or equal to the initial reduction amplitude (i.e., reducing or maintaining the initial reduction brightness). For example, the initial brightness of sub-pixel A is 10, the initial cold-hot conversion coefficient is 0.8, and the target cold-hot conversion coefficient is 0.9. Then, the brightness of sub-pixel A after correction by the initial cold-hot conversion coefficient is 8, and the brightness after correction by the target cold-hot conversion coefficient is 9.

[0072] If α_Final>1, it means that the brightness of the corresponding sub-pixel needs to be increased. Since α_Final≤α at this time, it means that the increase is less than or equal to the initial increase (i.e., the initial increase brightness is reduced or maintained). For example, the initial brightness of sub-pixel B is 10, the initial cold-hot conversion coefficient is 1.2, and the target cold-hot conversion coefficient is 1.1. Then, the brightness of sub-pixel B after correction by the initial cold-hot conversion coefficient is 12, and the brightness after correction by the target cold-hot conversion coefficient is 11.

[0073] If α_Final=1, it means that the brightness of the corresponding sub-pixel does not need to be corrected at this time.

[0074] Those skilled in the art will appreciate that the above embodiments are exemplary and are not intended to limit the present application. Where possible, the execution order of one or more of the above steps may be adjusted, or may be selectively combined to obtain one or more other embodiments. Those skilled in the art may select and combine any of the above steps as needed, and all those that do not depart from the essence of the present application fall within the scope of protection of the present application.

[0075] The display screen correction scheme provided in the embodiment of the present application first determines the temperature of the cabinet in the display screen, determines the temperature correction parameters of the cabinet according to the temperature of the cabinet, then determines the target cold-hot conversion coefficient of each sub-pixel according to the temperature correction parameters and the initial cold-hot conversion coefficient of each sub-pixel in the cabinet (used to correct the initial display parameters of each sub-pixel), and then corrects the display parameters of each sub-pixel according to the target cold-hot conversion coefficient of each sub-pixel to make the luminance of each sub-pixel more uniform, thereby improving the uniformity of the luminance of the display screen and improving the display effect of the display screen. In addition, the scheme can automatically correct the display parameters of the sub-pixels of each cabinet according to the different temperatures of each cabinet of the display screen, without the need for manual adjustment, thereby improving the practicality of the product.

[0076] Based on the same inventive concept, as an implementation of the above method, an embodiment of the present application provides a display screen correction device, and the device embodiment corresponds to the above method embodiment. For ease of reading, the present device embodiment will no longer repeat the details of the above method embodiment one by one, but it should be clear that the device in this embodiment can correspond to and implement all the contents of the above method embodiment.

[0077] Figure 3 A schematic diagram of the structure of a display screen correction device provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the device provided in this embodiment includes:

[0078] A determination module 110, configured to determine the temperature of a box in the display screen;

[0079] Determining a temperature correction parameter of the box according to the temperature of the box;

[0080] Determining a target cold-to-heat conversion coefficient of each sub-pixel in the housing according to the temperature correction parameter and an initial cold-to-heat conversion coefficient of each sub-pixel, wherein the initial cold-to-heat conversion coefficient is used to correct an initial display parameter of each sub-pixel;

[0081] The correction module 120 is used to correct the display parameters of each of the sub-pixels according to the target cold-to-heat conversion coefficient of each of the sub-pixels.

[0082] As an optional implementation, the device further includes:

[0083] A detection module 130, used to detect the temperature of each module in the box;

[0084] The determination module 110 is specifically configured to determine an average value of the temperatures of the modules detected by the detection module 130 as the temperature of the box.

[0085] As an optional implementation, the determination module 110 is specifically configured to: determine the temperature of one of the modules in the box detected by the detection module 130 as the temperature of the box.

[0086] As an optional implementation, the determination module 110 is specifically used to determine the temperature correction parameters of the cabinet according to the temperature of the cabinet, the cold screen temperature and the hot screen temperature, wherein the cold screen temperature is the temperature of the cabinet when the display screen is just powered on, and the hot screen temperature is the temperature of the cabinet after the display screen runs at maximum brightness in a white screen state for a set time.

[0087] As an optional implementation, the determination module 110 is specifically used to determine the temperature correction parameters of the cabinet according to the temperature of the cabinet, the cold screen temperature, the hot screen temperature, the current ambient temperature and the target ambient temperature, wherein the cold screen temperature is the temperature of the cabinet when the display screen is just powered on, and the hot screen temperature is the temperature of the cabinet after the display screen runs at maximum brightness in a white screen state for a set time, and the cold screen temperature and the hot screen temperature are determined at the target ambient temperature.

[0088] As an optional implementation, the determination module 110 is specifically used to: determine a first temperature difference and a second temperature difference, the first temperature difference being a difference between the temperature of the box and the cold screen temperature, and the second temperature difference being a difference between the target ambient temperature and the current ambient temperature;

[0089] The temperature correction parameter of the box is determined according to the ratio of the sum of the first temperature difference and the second temperature difference to a third temperature difference, wherein the third temperature difference is the difference between the hot screen temperature and the cold screen temperature.

[0090] As an optional implementation, the display parameter includes: brightness and / or chromaticity.

[0091] The display screen correction device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0092] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0093] Based on the same inventive concept, an embodiment of the present application also provides an electronic device. Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, such as Figure 4 As shown, the electronic device provided in this embodiment includes: a memory 210 and a processor 220, the memory 210 is used to store computer programs; the processor 220 is used to execute the method described in the above method embodiment when calling the computer program.

[0094] The electronic device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0095] The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method described in the above method embodiment is implemented.

[0096] The embodiment of the present application also provides a computer program product. When the computer program product is run on an electronic device, the electronic device implements the method described in the above method embodiment when executing the computer program product.

[0097] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions may be transmitted from a website site, a computer, a server or a data center to another website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk or a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)), etc.

[0098] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media can include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

[0099] The naming or numbering of the steps in this application does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The named or numbered process steps can change the execution order according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0100] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0101] In the embodiments provided in the present application, it should be understood that the disclosed devices / equipment and methods can be implemented in other ways. For example, the device / equipment embodiments described above are merely schematic, for example, the division of the modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0102] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0103] In the description of this application, unless otherwise specified, " / " indicates that the objects associated with each other are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship between associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0104] Furthermore, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0105] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0106] In addition, in the description of the present specification and the appended claims, the terms "first", "second", "third", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0107] References described in the specification of the present application to "one embodiment" or "some embodiments" etc. mean that one or more embodiments of the present application include a specific feature, structure or characteristic described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in the specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display screen calibration method, characterized in that: include: Determining the temperature of a box in the display screen; Determining a temperature correction parameter of the box according to the temperature of the box, the cold screen temperature and the hot screen temperature, wherein the cold screen temperature is the temperature of the box when the display screen is just powered on, and the hot screen temperature is the temperature of the box after the display screen runs at maximum brightness in a white screen state for a set time; determining a target cold-heat conversion coefficient of each sub-pixel in the box according to the temperature correction parameter and an initial cold-heat conversion coefficient of each sub-pixel, wherein the initial cold-heat conversion coefficient is used to correct an initial display parameter of each sub-pixel; The display parameters of each of the sub-pixels are corrected according to the target cold-to-heat conversion coefficient of each of the sub-pixels.

2. The method according to claim 1, characterized in that Determining the temperature of the box in the display screen includes: Detecting the temperature of each module in the box; The average value of the temperatures of the modules is determined as the temperature of the box.

3. The method according to claim 1, characterized in that: Determining the temperature of the box in the display screen includes: The detected temperature of one of the modules in the box is determined as the temperature of the box.

4. The method according to claim 1, characterized in that: The step of determining the temperature correction parameter of the box according to the temperature of the box, the cold shield temperature, and the hot shield temperature includes: The temperature correction parameter of the box is determined according to the temperature of the box, the cold screen temperature, the hot screen temperature, the current ambient temperature and the target ambient temperature, wherein the cold screen temperature and the hot screen temperature are determined at the target ambient temperature.

5. The method according to claim 4, characterized in that The step of determining the temperature correction parameter of the box according to the temperature of the box, the cold screen temperature, the hot screen temperature, the current ambient temperature and the target ambient temperature includes: Determine a first temperature difference and a second temperature difference, wherein the first temperature difference is a difference between the temperature of the box and the temperature of the cold screen, and the second temperature difference is a difference between the target ambient temperature and the current ambient temperature; The temperature correction parameter of the box is determined according to the ratio of the sum of the first temperature difference and the second temperature difference to a third temperature difference, wherein the third temperature difference is the difference between the hot screen temperature and the cold screen temperature.

6. The method according to any one of claims 1 to 5, characterized in that: The display parameters include: brightness and / or chromaticity.

7. A display screen correction device, characterized in that: include: A determination module, used to determine the temperature of the box in the display screen; Determining a temperature correction parameter of the box according to the temperature of the box, the cold screen temperature and the hot screen temperature, wherein the cold screen temperature is the temperature of the box when the display screen is just powered on, and the hot screen temperature is the temperature of the box after the display screen runs at maximum brightness in a white screen state for a set time; determining a target cold-heat conversion coefficient of each sub-pixel in the box according to the temperature correction parameter and an initial cold-heat conversion coefficient of each sub-pixel, wherein the initial cold-heat conversion coefficient is used to correct an initial display parameter of each sub-pixel; The correction module is used to correct the display parameters of each sub-pixel according to the target cold-heat conversion coefficient of each sub-pixel.

8. An electronic device, characterized in that: include: A memory and a processor, wherein the memory is used to store a computer program; and the processor is used to execute the method according to any one of claims 1 to 6 when calling the computer program.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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