Temperature compensation method and device of display screen, display screen and display system

Abstract

The application is suitable for the technical field of display, and provides a temperature compensation method and device of a display screen, the display screen and a display system, comprising: acquiring partition information of the first display screen, wherein the partition information comprises position ranges of each region obtained after the first display screen is divided into at least two regions; acquiring temperature information of each region according to the position ranges of each region in the partition information; determining temperature compensation coefficients of each region according to the temperature information of each region; and processing to-be-displayed data of the corresponding region according to the temperature compensation coefficients of each region. Through the above method, the accuracy of data of the display screen during actual display can be improved.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a method, apparatus, display screen, display system and computer-readable storage medium for temperature compensation of display screen. Background Technology

[0002] With the development of display technology, displays are being used more and more frequently in daily applications, and people's requirements for display effects are also increasing. For example, people generally believe that the more uniform the luminance of a display, the better its display effect.

[0003] To improve the uniformity of luminance when displaying data, thermal compensation correction can be performed on the display screen. However, when using existing thermal compensation correction methods to correct the luminance of the display screen, inconsistencies in luminance can still occur. Summary of the Invention

[0004] This application provides a method, apparatus, display screen, and display system for temperature compensation of a display screen, which can solve the problem of inconsistent display effects of the display screen.

[0005] In a first aspect, embodiments of this application provide a temperature compensation method for a display screen, applied to a first display screen, the temperature compensation method for the display screen comprising:

[0006] Obtain the partition information of the first display screen, wherein the partition information includes: the location range of each region after dividing the first display screen into at least two regions;

[0007] The temperature information of each region is obtained based on the location range of each region in the partition information;

[0008] The temperature compensation coefficient for each region is determined based on the temperature information of each region.

[0009] The data to be displayed in the corresponding region is processed according to the temperature compensation coefficient of each region.

[0010] Secondly, embodiments of this application provide a temperature compensation device for a display screen, applied to a first display screen, the temperature compensation device for the display screen comprising:

[0011] An interface module is used to obtain the partition information of the first display screen, wherein the partition information includes: the location range of each region after dividing the first display screen into at least two regions;

[0012] The sensor management module is used to obtain the temperature information of each region based on the location range of each region in the partition information;

[0013] The data processing module is used to determine the temperature compensation coefficient of each region based on the temperature information of each region.

[0014] The driving module is used to process the data to be displayed in the corresponding area according to the temperature compensation coefficient of each area.

[0015] Thirdly, embodiments of this application provide a display system, which includes a temperature compensation device, a driving device, and a display screen as described in the second aspect above. The temperature compensation device sends processed data to be displayed to the driving device, and the driving device drives the display screen according to the processed data to be displayed.

[0016] Fourthly, embodiments of this application provide a display screen, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in the first aspect.

[0017] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect.

[0018] In a sixth aspect, embodiments of this application provide a computer program product that, when run on a display screen, causes the display screen to execute the method described in the first aspect above.

[0019] The beneficial effects of the embodiments in this application compared with the prior art are:

[0020] In this embodiment, since the temperature information of each area of ​​the first display screen can more accurately reflect the temperature of each area compared with the average temperature of the entire display screen, the temperature compensation coefficient of each area determined based on the temperature information of each area can also more accurately reflect the value that needs to be compensated for the corresponding area. As a result, after compensating the data to be displayed in each area of ​​the first display screen according to the temperature compensation coefficient of each area of ​​the first display screen, the accuracy of the data actually displayed subsequently can be improved, thereby improving the uniformity of the data display effect of the subsequent display screen. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0022] Figure 1 This is a schematic flowchart of a temperature compensation method for a display screen provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram illustrating the relationship between luminous efficiency and time, provided in one embodiment of this application;

[0024] Figure 3 This is a schematic diagram illustrating the relationship between temperature compensation coefficient and time according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of dividing a first display screen into 8 regions according to an embodiment of this application;

[0026] Figure 5 This is a schematic diagram illustrating the communication between a TCON chip and sensors in various regions, provided in one embodiment of this application.

[0027] Figure 6 This is a schematic diagram illustrating the area division at the splicing point of two displays according to an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of a temperature compensation device for a display screen according to an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the structure of a display system provided in one embodiment of this application;

[0030] Figure 9 This is a schematic diagram of the structure of a first display screen provided in an embodiment of this application. Detailed Implementation

[0031] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0032] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0033] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0034] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0036] Example 1:

[0037] With the development of display technology, displays are being used more and more frequently in everyday applications. For example, due to the advantages of high brightness and high contrast in display effects, LED conference screens and LED TVs are gradually appearing in everyday applications.

[0038] Since a more uniform luminance of a display screen indicates a better display effect, thermal compensation correction can be performed on the display screen to improve the uniformity of luminance when displaying data.

[0039] When performing thermal compensation calibration on an LED display, a single LED display (which is composed of cabinets, and each cabinet is composed of multiple LED modules) is usually treated as a whole, or a single cabinet is treated as a whole for thermal compensation calibration. This means the calibration is performed based on the average temperature of the entire LED display or the average temperature of the entire cabinet. However, because the distribution of heat sources within an LED display is uneven, the temperature distribution is also uneven and has a cumulative effect. For example, the temperature rises faster in areas near the heat source and slower in areas farther away. Furthermore, the rate of temperature rise may vary even in areas farther from the heat source depending on the heat dissipation conditions. Therefore, using a general temperature trend for thermal compensation calibration will not be suitable for the different areas of the LED display, potentially leading to localized bluish or reddish tints.

[0040] To improve the accuracy of thermal compensation correction for a display screen, this application provides a temperature compensation method for a display screen, which is applied to a first display screen. Specifically, the first display screen is pre-divided into zones, and the temperature information of each zone is obtained. Then, a temperature compensation coefficient for each zone is determined based on the temperature information of each zone. Finally, the data to be displayed in each zone is compensated based on the temperature compensation coefficient of each zone.

[0041] Since the temperature compensation coefficient of each area of ​​the first display screen can more accurately reflect the value that needs to be compensated for in each area, compensating the data to be displayed in each area of ​​the first display screen according to the temperature compensation coefficient of each area of ​​the first display screen can improve the accuracy of the displayed data.

[0042] The temperature compensation method for a display screen provided in the embodiments of this application is described below with reference to the accompanying drawings.

[0043] Figure 1 This illustration shows a flowchart of a temperature compensation method for a display screen according to an embodiment of this application. The method is applied to a first display screen, such as in the controller of that first display screen. This controller can be a timing controller (TCON) chip or a display controller, such as a receiver card; no specific limitation is made here. The following description uses the application of the display screen temperature compensation method to a TCON chip as an example, detailed as follows:

[0044] Step S11: Obtain the partition information of the first display screen, wherein the partition information includes the location range of each region after the first display screen is divided into at least two regions.

[0045] The first display screen may include a display module or a cabinet composed of multiple display modules, or the first display screen may be a display screen assembled from cabinets. That is, when the first display screen includes a display module, the partition information of the first display screen is the partition information of the first display module; when the first display screen is a cabinet composed of multiple display modules, the partition information of the first display screen is the partition information of the cabinet.

[0046] In this embodiment, the first display screen is pre-divided into at least two regions, such as region 1 and region 2. If region 1 is rectangular, the partition information records the coordinates of the four vertices in region 1, and regions on the first display screen that do not belong to region 1 are recorded as region 2. If the TCON chip communicates with a host computer, the user can send partition information to the TCON chip through the host computer. The TCON chip can store the partition information after receiving it so that it can be used directly later. Of course, if the partition information received by the TCON chip is different from the partition information it previously stored, the currently received partition information can replace the previously stored partition information.

[0047] Of course, in this embodiment, the area of ​​the first display screen can also be divided according to the user's division habits or according to the shape and structure of the first display screen. It is only necessary to ensure that the number of divided areas is greater than 1. There is no limitation here.

[0048] Step S12: Obtain the temperature information of each region based on the location range of each region in the above partition information.

[0049] In this embodiment, the TCON chip obtains the temperature information of each point (e.g., a pixel) within the corresponding region based on the location range of each region recorded in the partition information. In some embodiments, the TCON chip can use the average value of the temperature information of each point as the temperature information of the region where each point is located. Since the average value of the temperature information of a region is used as the temperature information of that region, the temperature information of that region can reflect the temperature concentration trend of that region.

[0050] In other embodiments, for each region, the TCON chip counts the temperature information corresponding to the most numerous points within that region. If the number of points corresponding to that temperature information is greater than a preset threshold, then that temperature information is used as the temperature information for that region. Since when many points in a region correspond to the same temperature information, and the number of points corresponding to that same temperature information is greater than the preset threshold, it indicates that most of the information that the user can perceive in that region is reflected through that temperature information. Therefore, using that temperature information as the temperature information for that region can more accurately reflect the temperature information of most points in that region.

[0051] Step S13: Determine the temperature compensation coefficient for each region based on the temperature information of each region.

[0052] In this embodiment, a compensation coefficient model can be pre-trained based on multiple pairs of data (each pair includes a temperature information and a temperature compensation coefficient corresponding to that temperature information). The input of this coefficient compensation model is the temperature information, and the output is the temperature compensation coefficient corresponding to the input temperature information. That is, the pre-trained compensation coefficient model can reflect the correspondence between temperature information and temperature compensation coefficient.

[0053] Of course, besides determining the temperature compensation coefficient through a pre-trained compensation coefficient model, the temperature compensation coefficient for other temperature information can also be estimated directly based on pre-calculated temperature information and the temperature compensation coefficient. For example, assuming the temperature compensation coefficient is 1 when the temperature is 25°C and 5 / 4 when the temperature is 50°C, then through a linear interpolation operation, the temperature compensation coefficient can be estimated to be 6 / 5 when the temperature is 30°C.

[0054] Step S14: Process the data to be displayed in the corresponding area according to the temperature compensation coefficient of each area mentioned above.

[0055] Specifically, the TCON chip compensates the data to be displayed in the corresponding area based on the temperature compensation coefficient for each area. Furthermore, after compensating the data, the compensated data is displayed. For example, if the temperature compensation coefficient is used to compensate for the brightness of the data, then the brightness-compensated data is displayed.

[0056] In this embodiment, since the temperature information of each area of ​​the first display screen can more accurately reflect the temperature of each area compared with the average temperature of the entire display screen, the temperature compensation coefficient of each area determined based on the temperature information of each area can also more accurately reflect the value that needs to be compensated for the corresponding area. As a result, after compensating the data to be displayed in each area of ​​the first display screen according to the temperature compensation coefficient of each area of ​​the first display screen, the accuracy of the data actually displayed subsequently can be improved, thereby improving the uniformity of the data effect (such as luminance) displayed on the subsequent display screen.

[0057] In some embodiments, step S13 above includes:

[0058] A1. Obtain the cold screen correction coefficient and the hot screen correction coefficient of the first display screen, wherein the cold screen correction coefficient is determined based on the first initial data and the first target data, wherein the first initial data is the initial data of the first display screen in the cold screen state, and the first target data is the target data of the first display screen in the cold screen state, and the initial data includes the initial brightness and / or the initial chromaticity; the hot screen correction coefficient is determined based on the second initial data and the second target data, wherein the second initial data is the initial data of the first display screen in the thermal equilibrium state, and the second target data is the target data of the first display screen in the thermal equilibrium state.

[0059] The cold screen correction coefficient of the first display screen can be determined as follows: Initial data (i.e., first initial data) of each point on the first display screen in a cold screen state (e.g., upon power-on) is collected; this first initial data is compared with first target data to obtain the difference between the two; and the cold screen correction coefficient is then determined based on this difference. This first initial data typically includes initial brightness (i.e., brightness value in a cold screen state). In some embodiments, considering that chromaticity changes with increasing temperature, and that the pattern of chromaticity change is usually different from that of brightness change, the first initial data may also include initial chromaticity (i.e., chromaticity value in a cold screen state) to ensure the balance of white generated by the mixing of the red, green, and blue primary colors. In this embodiment of the application, the first target data refers to the value set by the user as needed. The first target value corresponds to the first initial data. For example, if the first initial data includes the initial brightness, then the first target value also includes the initial brightness. If the first initial data includes the initial chromaticity, then the first target value also includes the initial chromaticity. Of course, if the first initial data includes the initial brightness and the initial chromaticity, then the cold screen correction coefficient in this embodiment of the application also includes the brightness correction coefficient and the chromaticity correction coefficient of the cold screen.

[0060] The hot screen correction coefficient for the first display screen can be determined as follows: Initial data (i.e., second initial data) of each point on the first display screen in a hot screen state (e.g., when the temperature of the first display screen no longer changes) is collected. This second initial data is compared with second target data to obtain the difference between the two. The hot screen correction coefficient is then determined based on this difference. It should be noted that the second initial data corresponds to the first initial data. For example, if the first initial data includes the brightness value in a cold screen state, the second initial data includes the brightness value in a hot screen state.

[0061] In some embodiments, the cold screen correction coefficient of the first display screen can also be determined by: determining the cold screen correction coefficient of the first display screen based on the difference between the first initial data and the first target data, and based on the first target value that each point in the first display screen can achieve (for example, if the difference between the first initial data and the first target data is a brightness difference, then the first target value is the brightness value that each point can achieve in the cold screen state). Since the cold screen correction coefficient is determined by considering the target value that each point in the first display screen can achieve, it can be ensured that after subsequent correction based on the cold screen correction coefficient, each point of the first display screen can achieve the ideal target value.

[0062] In some embodiments, the thermal correction coefficient of the first display screen can also be determined in the following ways:

[0063] The hot screen correction coefficient of the first display screen is determined based on the difference between the second initial data and the second target data, and based on the second target value that each point on the first display screen can achieve (for example, if the difference between the second initial data and the second target data is a brightness difference, then the second target value is the brightness value that each point can achieve in the hot screen state). Since the hot screen correction coefficient is determined by considering the target value that each point on the first display screen can achieve, it can be ensured that after subsequent correction based on this hot screen correction coefficient, each point on the first display screen can achieve the ideal target value.

[0064] A2. Based on the temperature information of each of the above regions, the cold screen correction coefficient of the first display screen, and the hot screen correction coefficient of the first display screen, determine the temperature compensation coefficient of each of the above regions.

[0065] In this embodiment, for each region, the TCON chip determines the temperature value of that region in a cold screen state (assumed to be a first temperature value) and the temperature value of that region in a hot screen state (assumed to be a second temperature value). It calculates the difference between the first and second temperature values ​​(assumed to be a first difference), and also calculates the difference between the cold screen correction coefficient and the hot screen correction coefficient (assumed to be a second difference). Then, based on the correspondence between the first and second differences, it calculates the temperature compensation coefficient corresponding to the temperature information of that region. For example, the temperature compensation coefficient corresponding to the temperature information of that region can be calculated using a linear interpolation method. Since the computational load of linear interpolation is relatively small, the above method can quickly determine the temperature compensation coefficient corresponding to each region.

[0066] In some embodiments, considering that the decay of luminance and / or chromaticity is generally not linear, taking luminance as an example, the relationship between luminance and time is as follows: Figure 2 The curve in the image is shown. Figure 2In this process, as the startup time T of the first display screen increases, the brightness of the display screen (the higher the luminous efficiency, the greater the brightness) will first increase, and then gradually decrease. Therefore, to further improve the accuracy of the obtained temperature compensation coefficient, before calculating the temperature compensation coefficient of each region, the weights corresponding to different temperature information are predetermined. Thus, when calculating the temperature compensation coefficient of each region, the initial temperature compensation coefficient of each region can be calculated first using linear interpolation, and then the final temperature compensation coefficient of the corresponding region can be determined based on the predetermined weights corresponding to different temperature information and the initial temperature compensation coefficient of the corresponding region. That is, the obtained temperature compensation coefficient does not change linearly with time, but rather... Figure 3 The curve in the image is shown. Figure 2 and Figure 3 It can be seen that the greater the brightness, the smaller the corresponding temperature compensation coefficient, and vice versa.

[0067] In some embodiments, in order to obtain more accurate partition information, step S11 above includes:

[0068] B1. Determine the heat source distribution area of ​​the first display screen.

[0069] The heat source distribution area includes the location of the heat source of the first display screen.

[0070] B2. Determine the partition information of the first display screen based on the heat source distribution area of ​​the first display screen.

[0071] In this embodiment of the application, considering that a heat source will cause the temperature of the area near it to change, and that the change is related to distance (i.e., the distance between the area and the heat source), for example, the closer the area is to the heat source, the faster its temperature rises, while the farther the area is from the heat source, the slower its temperature rises, therefore, determining the partition information of the first display screen based on the heat source distribution area of ​​the first display screen can improve the accuracy of the temperature information of each area obtained subsequently.

[0072] In some embodiments, step B1 above includes:

[0073] B11. Determine the heat source distribution area of ​​the first display screen based on the distribution location of the heat-generating devices of the first display screen. Since the temperature of the location of the heat-generating device (such as a driver chip, power chip, etc.) or the area near the heat-generating device is usually high, the area where the heat-generating device is located (or the area within a preset distance range around the heat-generating device) can be determined as the heat source area (or heat source distribution area) of the first display screen.

[0074] Alternatively, step B1 above may include:

[0075] B11' Obtain the heat map of the first display screen and determine the heat source distribution area of ​​the first display screen based on the heat map. Considering that different colors can be used to reflect different temperatures in the heat map, the area in the heat map where the temperature is higher than a preset temperature threshold can be determined as the area where the heat source of the first display screen is located.

[0076] In this embodiment of the application, since the heating device is a heat source and the color in the heat map can also reflect the temperature value, the heat source distribution area of ​​the first display screen can be accurately determined based on the distribution position of the heating device on the first display screen or based on the heat map of the first display screen.

[0077] In some embodiments, to improve the speed of region division, step B2 above includes:

[0078] Based on the heat source distribution area of ​​the first display screen, a first region and a second region are divided on the first display screen. The distance between the first region and the heat source distribution area is less than or equal to a preset distance threshold. The region of the first display screen that does not belong to the first region is determined as the second region.

[0079] In this embodiment, the location of the heat source or the area where the heat source is located is determined based on the heat source distribution area of ​​the first display screen. Then, the first display screen is divided according to the distance from the location (or area) of the heat source. For example, if the first display screen is divided into two areas, the area of ​​the first display screen whose distance from the location (or area) of the heat source is less than a preset distance threshold is divided into area 1, and the area whose distance from the location (or area) of the heat source is not less than the preset distance threshold is divided into area 2. Then, the partition information of the first display screen is obtained based on the location range of area 1 and area 2 on the first display screen. Since the temperature rises faster in areas closer to the location (or area) of the heat source, dividing the area according to the distance from the location (or area) of the heat source helps to improve the accuracy of the temperature information of the area obtained subsequently.

[0080] In some embodiments, to improve the precision of the divided regions, the number of divided regions is set to be greater than 3, that is, before step B1 above, the method further includes:

[0081] Based on the structure of the first display screen described above, at least two parent regions are divided. In this embodiment, considering that the region division based on the structure of the first display screen is usually a rough division, and the roughly divided regions will be further subdivided later, the region divided based on the structure of the first display screen is called the "parent region" to distinguish it from the subsequent "first region," "second region," etc. Specifically, it can be as follows: Figure 4 As shown, the first display screen is divided into four parent regions: the upper left region, the lower left region, the upper right region, and the lower right region. Of course, the first display screen can also be divided into three parent regions; this is not a limitation. The areas of the divided parent regions may be equal or unequal. In some embodiments, to improve the speed of calculating the temperature information of each partition, the areas of the divided parent regions may be made equal.

[0082] Correspondingly, the above-mentioned division of the first display screen into a first region and a second region based on the heat source distribution area of ​​the first display screen includes:

[0083] For each parent region, a first region and a second region are divided within the parent region based on the distribution area of ​​heat sources in the parent region.

[0084] Assuming for Figure 4 The upper left region (which is a parent region) is then divided into a first region and a second region based on the distribution of heat sources within this region, such as the location of the heat sources. For example, if the strip region where sensor 1 is located and the black-filled strip region in the upper left region are heat sources, then the strip region where sensor 1 is located and the black-filled strip region in the upper left region are designated as the first region, while the area in the upper left region excluding the first region is designated as the second region. It should be noted that the area of ​​the strip region where sensor 1 is located and the area of ​​the black-filled strip region can be equal or unequal.

[0085] It should be noted that for a parent region, the number of its heat sources (or heat-generating devices) may be greater than 1. Therefore, the number of the first regions may also be greater than 1. Similarly, the number of the second regions may also be greater than 1.

[0086] In this embodiment, since the structure of the first display screen is first divided into at least two parent regions, and then each parent region is further subdivided, the divided regions are more refined, thereby improving the accuracy of the temperature information of each region.

[0087] In some embodiments, to facilitate the acquisition of temperature information for each area, a number greater than one temperature detection device is pre-installed in the first display screen. This temperature detection device is used to periodically or in real-time collect temperature information at its location, and its installation location information can be represented using coordinate information. In this embodiment, the partition information of the first display screen can be determined according to the installation location information of the temperature detection devices on the first display screen. In this case, step S11 includes:

[0088] The installation location information of the temperature detection device on the first display screen is obtained, and the partition information of the first display screen is determined based on the installation location information.

[0089] Specifically, at least two temperature detection devices are pre-installed in the first display screen (such as the display module of the first display screen), which are used to detect temperature information at their installation locations periodically or in real time.

[0090] In this embodiment, the area within a preset range of the location of the temperature detection device can be divided into an independent region. Since the temperature detection device can collect temperature information at its location, and the temperature change in the area surrounding the temperature detection device is usually not significant, the installation location information of the temperature detection device is taken into account when dividing the first display screen, which ensures that the temperature information of the divided region can be conveniently and accurately detected by the temperature detection device in that region.

[0091] In some embodiments, when determining the partition information, in addition to considering the installation location information of the temperature detection device on the first display screen, the distribution location of the heat sources on the first display screen is also considered. For example, such as Figure 4 As shown, assuming the temperature detection device installed in the first display screen is a temperature sensor, and the number of these temperature sensors is 8, namely... Figure 4 Sensors 1, 2, 3, 4, 5, 6, 7, and 8 are included, and sensor 1, sensor 2, sensor 3, sensor 4, and... Figure 4 The four black-filled strip areas in the middle are all locations of heat sources on the first display screen. Therefore, the strip area where sensor 1 is located, along with the black-filled strip area in the upper left region, can be divided into Region 1. The temperature information of Region 1 is obtained through sensor 1. Since both sensor 1 and the black-filled strip area are located at the heat source locations, and the strip area where sensor 1 is located is adjacent to the black-filled strip area, using the temperature information collected by sensor 1 as the temperature information corresponding to these two strip areas ensures the accuracy of the temperature information in Region 1. It should be noted that... Figure 4 The strip-shaped region shown is for illustrative purposes only. In reality, if the heat source is circular, then... Figure 4 The strip-shaped area will become circular.

[0092] In this embodiment, the remaining area in the upper left region (i.e., the area in the upper left region that is not region 1) is divided into region 2, and the temperature information of region 2 is collected by sensor 5. Similarly, the strip area where sensor 2 is located and the strip area filled with black in the upper right region are divided into region 3 (wherein region 1 and region 3 can be classified as the first region in this embodiment), and the temperature information of region 3 is collected by sensor 2. The remaining area in the upper right region (i.e., the area that is not region 3) is divided into region 4 (wherein region 2 and region 4 can be classified as the second region in this embodiment), and the temperature information of region 4 is collected by sensor 7.

[0093] Furthermore, the division of the lower left and lower right regions in the first display screen is similar to that of the upper left and upper right regions, and will not be repeated here.

[0094] In this embodiment of the application, since the installation location of the temperature detection device on the first display screen and the distribution location of the heat-generating devices on the first display screen are considered in addition to the installation location of the temperature detection device on the first display screen when determining the partition information, the accuracy of the temperature information of the area obtained subsequently can be guaranteed.

[0095] In some embodiments, such as Figure 5 As shown, assuming that the first display screen is equipped with 8 sensors for collecting temperature information, and each sensor is connected to the TCON chip through an ADC interface, the TCON chip can quickly obtain the temperature information collected by each sensor through the ADC interface.

[0096] In this embodiment, after obtaining temperature information from the temperature detection device, the region to which the temperature information belongs can be determined based on the correspondence between each region in the partitioning information and the temperature detection device. Since the temperature information is obtained through the ADC interface, and the ADC interface has a relatively fast transmission speed, the speed of obtaining temperature information can be improved through the above method.

[0097] In some embodiments, if at least two temperature detection devices are installed on the first display screen, then step S12 above includes:

[0098] Based on the above zoning information, temperature detection devices pre-installed in each area are determined, and temperature information of each area is obtained through the above temperature detection devices in each area.

[0099] In this embodiment, at least two temperature detection devices are pre-installed on the first display screen, and the temperature detection devices corresponding to each area of ​​the first display screen are recorded in the partition information. In this way, after obtaining the temperature information collected by the temperature detection devices, the temperature information can be determined to be the temperature information corresponding to which area based on the correspondence between each area and the temperature detection device.

[0100] In some embodiments, the TCON chip can be connected to a temperature sensing device via an analog-to-digital converter (ADC) interface, and acquire the temperature information detected by the device through this ADC interface. Since the ADC interface enables rapid information transmission, the TCON chip can improve the speed of temperature information acquisition by directly acquiring the temperature information through the ADC interface.

[0101] In some embodiments, the temperature detection device of this application includes a temperature sensor and / or a thermistor. Since the temperature sensor and / or thermistor can detect temperature information, and the temperature of the first display screen may also change when the temperature of the external environment of the display screen changes, real-time detection of temperature information by the temperature sensor and / or thermistor helps the TCON chip to adaptively and promptly determine the temperature compensation coefficient of each area, thereby ensuring the display effect of the display screen in a timely manner.

[0102] In some embodiments, considering that two or more displays can be spliced ​​together to form a larger display, step B2 above includes the following steps to improve the display effect at the splicing point:

[0103] B21. A first region is defined on the first display screen according to the heat source distribution area of ​​the first display screen, and the distance between the first region and the heat source distribution area is less than or equal to a preset distance threshold.

[0104] B22. If the first display screen and the second display screen are spliced ​​together, the area within a preset range at the splicing point of the first display screen and the second display screen is defined as the third area, wherein the second display screen is a display screen different from the first display screen, and the area of ​​the first display screen that does not belong to the first area and does not belong to the third area is defined as the fourth area.

[0105] The aforementioned preset range can be a range corresponding to 1 to 2 pixels. For example... Figure 6 As shown, assuming the first and second displays are spliced ​​together, the strip area where sensor 1 is located and the area within the black strip area of ​​the first display (i.e., both areas are heat sources) can be divided into the first region, while the area within a preset range at the splicing point (such as...) can be divided into... Figure 6 The area corresponding to the dashed line and the splicing point is defined as the third region. It should be noted that... Figure 6Only the right side of the first display screen is shown spliced ​​with the second display screen. If at least one of the left, top, or bottom of the first display screen is spliced ​​with other display screens, then the splicing point of the first display screen will be further divided into independent areas equal to the number of spliced ​​screens. This will not be elaborated here.

[0106] In this embodiment of the application, considering that when two displays are spliced ​​together, the temperature information at the splicing point may be different from the temperature information of the area far from the splicing point, the area near the splicing point is divided into an independent area, which is beneficial to improve the accuracy of the temperature information obtained subsequently.

[0107] In some embodiments, considering that even displays of the exact same model may have different temperature information in their corresponding areas, and that the temperature compensation coefficient for different areas is related to the temperature information of that area, in order to improve the display effect at the splicing point after the displays are spliced, the above step S13 includes:

[0108] C1. Determine the temperature compensation coefficient corresponding to the first region based on the temperature information of the first region, and determine the temperature compensation coefficient corresponding to the fourth region based on the temperature information of the fourth region.

[0109] C2. Determine the initial temperature compensation coefficient corresponding to the third region based on the temperature information of the third region, and obtain the temperature compensation coefficient corresponding to the area in the second display screen that is spliced ​​with the third region. Based on the initial temperature compensation coefficient corresponding to the third region and the temperature compensation coefficient corresponding to the area in the second display screen that is spliced ​​with the third region, determine the final temperature compensation coefficient corresponding to the third region.

[0110] In this embodiment, for areas not corresponding to the splicing point, the temperature compensation coefficient for that area is directly determined based on its temperature information. For the area corresponding to the splicing point of the two displays, the temperature compensation coefficients for each display at that splicing point are first calculated separately, and then a final temperature compensation coefficient is determined based on these two coefficients. For example, the average of the two temperature compensation coefficients corresponding to the splicing point for each display can be used as the final temperature compensation coefficient for the two areas at the splicing point, or one of the temperature compensation coefficients can be selected as the final temperature compensation coefficient for the two areas at the splicing point, and so on. Because the temperature compensation coefficients for the two areas at the splicing point of the two displays are unified, the uniformity of the display effect in these two areas can be guaranteed, resulting in smoother information display at the splicing point.

[0111] In some embodiments, step S14 above involves processing the data to be displayed in the corresponding region according to the temperature compensation coefficient of each region, including:

[0112] For any given region, the final display data corresponding to each point is determined based on the temperature compensation coefficient of that region and the data to be displayed at each point within that region.

[0113] Specifically, the temperature compensation coefficient can be multiplied by the data to be displayed to obtain the final display data. The data to be displayed can be brightness and / or chromaticity.

[0114] In this embodiment, temperature compensation is applied to the data to be displayed, resulting in more accurate and user-friendly final displayed data.

[0115] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0116] Example 2:

[0117] Corresponding to the temperature compensation method for the display screen in Embodiment 1 above, Figure 7 A structural block diagram of a temperature compensation device for a display screen provided in an embodiment of this application is shown. For ease of explanation, only the parts related to the embodiment of this application are shown.

[0118] Reference Figure 7 The temperature compensation device 7 for the display screen is applied to the first display screen. For example, if it is applied to the controller of the first display screen, the controller can be a TCON chip. The following description uses the application of the temperature compensation device 7 in a TCON chip as an example. The temperature compensation device 7 includes: an interface module 71, a sensor management module 72, a data processing module 73, and a drive module 74. Wherein:

[0119] Interface module 71 is used to obtain the partition information of the first display screen, wherein the partition information includes the location range of each region after dividing the first display screen into at least two regions.

[0120] The sensor management module 72 is used to obtain temperature information for each area based on the partition information.

[0121] In some embodiments, the TCON chip can use the average temperature information of each point as the temperature information of the region where each point is located. Since the average temperature information of the region is used as the temperature information of the region, the temperature information of the region can reflect the temperature concentration trend of the region.

[0122] In other embodiments, for each region, the TCON chip counts the temperature information corresponding to the point with the largest number of points in that region. If the number of points corresponding to the temperature information is greater than a preset threshold, then the temperature information is used as the temperature information of that region.

[0123] The data processing module 73 is used to determine the temperature compensation coefficient of each region based on the temperature information of each region.

[0124] In some embodiments, considering that the attenuation of luminance and / or chromaticity is generally not linear, in order to further improve the accuracy of the obtained temperature compensation coefficients, the weights corresponding to different temperature information are predetermined before calculating the temperature compensation coefficients of each region. In this way, when calculating the temperature compensation coefficients of each region, the initial temperature compensation coefficients of each region can be calculated first according to the linear interpolation operation, and then the final temperature compensation coefficients of the corresponding regions can be determined according to the predetermined weights corresponding to different temperature information and the initial temperature compensation coefficients of the corresponding regions.

[0125] The driving module 74 is used to process the data to be displayed in the corresponding area according to the temperature compensation coefficient of each area.

[0126] In this embodiment, since the temperature information of each area of ​​the first display screen can more accurately reflect the temperature of each area compared with the average temperature of the entire display screen, the temperature compensation coefficient of each area determined based on the temperature information of each area can also more accurately reflect the value that needs to be compensated for the corresponding area. As a result, after compensating the data to be displayed in each area of ​​the first display screen according to the temperature compensation coefficient of each area of ​​the first display screen, the accuracy of the data actually displayed subsequently can be improved, thereby improving the uniformity of the data effect (such as luminance) displayed on the subsequent display screen.

[0127] In some embodiments, the data processing module 73 includes:

[0128] The correction coefficient acquisition unit is used to acquire the cold screen correction coefficient and the hot screen correction coefficient of the first display screen. The cold screen correction coefficient is determined based on first initial data and first target data. The first initial data is the initial data of the first display screen in the cold screen state, and the first target data is the target data of the first display screen in the cold screen state. The initial data includes initial brightness and / or initial chromaticity. The hot screen correction coefficient is determined based on second initial data and second target data. The second initial data is the initial data of the first display screen in the thermal equilibrium state, and the second target data is the target data of the first display screen in the thermal equilibrium state.

[0129] The temperature compensation coefficient determination unit is used to determine the temperature compensation coefficient of each of the above-mentioned areas based on the temperature information of each area, the cold screen correction coefficient of the first display screen, and the hot screen correction coefficient of the first display screen.

[0130] In some embodiments, the interface module 71 includes:

[0131] The heat source distribution area unit is used to determine the heat source distribution area of ​​the first display screen.

[0132] The partition information determination unit is used to determine the partition information of the first display screen based on the heat source distribution area of ​​the first display screen.

[0133] In some embodiments, the heat source distribution area unit is specifically used for:

[0134] The heat source distribution area of ​​the first display screen is determined based on the distribution location of the heat-generating devices of the first display screen; or, a thermal map of the first display screen is obtained, and the heat source distribution area of ​​the first display screen is determined based on the thermal map.

[0135] In some embodiments, the partition information determining unit is specifically used for:

[0136] Based on the heat source distribution area of ​​the first display screen, a first region and a second region are divided on the first display screen. The distance between the first region and the heat source distribution area is less than or equal to a preset distance threshold. The region of the first display screen that does not belong to the first region is determined as the second region.

[0137] In some embodiments, the temperature compensation device 7 for the display screen further includes:

[0138] The parent region division module is used to divide at least two parent regions according to the structure of the first display screen.

[0139] Correspondingly, when the aforementioned partition information determining unit divides the first display screen into a first region and a second region based on the heat source distribution area of ​​the first display screen, it is specifically used for:

[0140] For each parent region, a first region and a second region are divided within the parent region based on the distribution area of ​​heat sources in the parent region.

[0141] In some embodiments, the partition information determination unit includes:

[0142] The first region division unit is used to divide the first display screen into a first region based on the heat source distribution area of ​​the first display screen, wherein the distance between the first region and the heat source distribution area is less than or equal to a preset distance threshold.

[0143] The third region division unit is used to determine the region within a preset range at the splicing point of the first display screen and the second display screen as the third region if the first display screen and the second display screen are spliced ​​together. The second display screen is a display screen different from the first display screen. The regions of the first display screen that do not belong to the first region and do not belong to the third region are determined as the fourth region.

[0144] In some embodiments, the data processing module includes:

[0145] The temperature compensation coefficient determination unit for the non-splicing area is used to determine the temperature compensation coefficient corresponding to the first area based on the temperature information of the first area, and to determine the temperature compensation coefficient corresponding to the fourth area based on the temperature information of the fourth area.

[0146] The temperature compensation coefficient determination unit for the splicing area is used to determine the initial temperature compensation coefficient corresponding to the third area based on the temperature information of the third area, and to obtain the temperature compensation coefficient corresponding to the area spliced ​​with the third area in the second display screen, and to determine the final temperature compensation coefficient corresponding to the third area based on the initial temperature compensation coefficient corresponding to the third area and the temperature compensation coefficient corresponding to the area spliced ​​with the third area in the second display screen.

[0147] In some embodiments, when the driving module processes the data to be displayed in the corresponding region according to the temperature compensation coefficient of each region, it is specifically used for:

[0148] For any given region, the final display data corresponding to each point is determined based on the temperature compensation coefficient of that region and the data to be displayed at each point within that region.

[0149] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0150] Example 3:

[0151] Figure 8 This is a schematic diagram of the structure of a first display system provided in an embodiment of this application. Figure 8The display system 8 includes a temperature compensation device 81 for the display screen as shown in Embodiment 2 above, which will not be described in detail here. The display system 8 also includes a driving device 82 and a display screen 83. Specifically, the temperature compensation device 81 sends the processed data to be displayed to the driving device 82, and the driving device 82 drives the display screen 83 according to the processed data to be displayed.

[0152] In this embodiment of the application, since the temperature compensation device can improve the accuracy of the data to be displayed after compensation, the uniformity of the data effect (such as luminance) displayed on the display screen can be improved after the driving device drives the display screen according to the processed display data.

[0153] Example 4:

[0154] Figure 9 This is a schematic diagram of the structure of a first display screen provided in an embodiment of this application. Figure 9 As shown, the first display screen 9 of this embodiment includes: at least one processor 90 ( Figure 9 The diagram shows only one processor, a memory 91, and a computer program 92 stored in the memory 91 and executable on at least one processor 90. When the processor 90 executes the computer program 92, it implements the steps in any of the above method embodiments.

[0155] The aforementioned first display screen 9 can be an LED display screen, which can be a conference screen used in meetings or a television screen used in homes, etc. The display screen 9 may include, but is not limited to, a processor 90 and a memory 91. Those skilled in the art will understand that... Figure 9 The first display screen 9 is merely an example and does not constitute a limitation on the first display screen 9. It may include more or fewer components than shown, or combine certain components, or different components, such as input / output devices, network access devices, etc.

[0156] The processor 90 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0157] In some embodiments, the aforementioned memory 91 may be an internal storage unit of the first display screen 9, such as a hard disk or memory of the first display screen 9. In other embodiments, the aforementioned memory 91 may be an external storage device of the first display screen 9, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the first display screen 9. Furthermore, the aforementioned memory 91 may include both internal storage units and external storage devices of the display screen 9. The aforementioned memory 91 is used to store operating systems, applications, bootloaders, data, and other programs, such as the program code of the aforementioned computer programs. The aforementioned memory 91 may also be used to temporarily store data that has been output or will be output.

[0158] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to 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 embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0159] This application also provides a network device, which includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor, wherein the processor executes the computer program to implement the steps in any of the above method embodiments.

[0160] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0161] This application provides a computer program product that, when run on a display screen, enables the display screen to perform the steps described in the above-described method embodiments.

[0162] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a photographing device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0163] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0164] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0165] In the embodiments provided in this application, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0166] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0167] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for temperature compensation of a display screen, characterized in that, The temperature compensation method for the first display screen includes: Obtain the partition information of the first display screen, wherein the partition information includes: the location range of each region after dividing the first display screen into at least two regions; The temperature information of each region is obtained based on the location range of each region in the partition information; The temperature compensation coefficient for each region is determined based on the temperature information of each region. The data to be displayed in the corresponding area is processed according to the temperature compensation coefficient of each area; The step of determining the temperature compensation coefficient for each region based on the temperature information of each region includes: The cold screen correction coefficient and the hot screen correction coefficient of the first display screen are obtained. The cold screen correction coefficient is determined based on the first initial data and the first target data. The first initial data is the initial data of the first display screen in the cold screen state, and the first target data is the target data of the first display screen in the cold screen state. The initial data includes the initial brightness and / or the initial chromaticity. The hot screen correction coefficient is determined based on the second initial data and the second target data. The second initial data is the initial data of the first display screen in the thermal equilibrium state, and the second target data is the target data of the first display screen in the thermal equilibrium state. Based on the temperature information of each region, the cold screen correction coefficient of the first display screen, and the hot screen correction coefficient of the first display screen, the temperature compensation coefficient of each region is determined.

2. The temperature compensation method for a display screen as described in claim 1, characterized in that, The step of obtaining the partition information of the first display screen includes: Determine the heat source distribution area of ​​the first display screen; The partition information of the first display screen is determined based on the heat source distribution area of ​​the first display screen.

3. The temperature compensation method for a display screen as described in claim 2, characterized in that, Determining the heat source distribution area of ​​the first display screen includes: The heat source distribution area of ​​the first display screen is determined based on the distribution location of the heat-generating devices of the first display screen; or, Obtain a heat map of the first display screen, and determine the heat source distribution area of ​​the first display screen based on the heat map.

4. The temperature compensation method for a display screen as described in claim 2, characterized in that, Determining the partition information of the first display screen based on the heat source distribution area of ​​the first display screen includes: Based on the heat source distribution area of ​​the first display screen, a first area and a second area are divided on the first display screen, wherein the distance between the first area and the heat source distribution area is less than or equal to a preset distance threshold, and the area of ​​the first display screen that does not belong to the first area is determined as the second area.

5. The temperature compensation method for a display screen as described in claim 4, characterized in that, Before determining the heat source distribution area of ​​the first display screen, the method further includes: At least two parent regions are divided according to the structure of the first display screen; Correspondingly, dividing the first display screen into a first region and a second region based on the heat source distribution area of ​​the first display screen includes: For each parent region, a first region and a second region are divided within the parent region based on the distribution area of ​​heat sources in that parent region.

6. The temperature compensation method for a display screen as described in claim 2, characterized in that, Determining the partition information of the first display screen based on the heat source distribution area of ​​the first display screen includes: A first region is defined on the first display screen based on the heat source distribution area of ​​the first display screen, and the distance between the first region and the heat source distribution area is less than or equal to a preset distance threshold. If the first display screen and the second display screen are spliced ​​together, the area within a preset range at the splicing point of the first display screen and the second display screen is determined as the third area, wherein the second display screen is a display screen different from the first display screen, and the area of ​​the first display screen that does not belong to the first area and does not belong to the third area is determined as the fourth area.

7. The temperature compensation method for a display screen as described in claim 6, characterized in that, The step of determining the temperature compensation coefficient for each region based on the temperature information of each region includes: The temperature compensation coefficient corresponding to the first region is determined based on the temperature information of the first region, and the temperature compensation coefficient corresponding to the fourth region is determined based on the temperature information of the fourth region. The initial temperature compensation coefficient corresponding to the third region is determined based on the temperature information of the third region. The temperature compensation coefficient corresponding to the area in the second display screen that is spliced ​​with the third region is obtained. The final temperature compensation coefficient corresponding to the third region is determined based on the initial temperature compensation coefficient corresponding to the third region and the temperature compensation coefficient corresponding to the area in the second display screen that is spliced ​​with the third region.

8. The temperature compensation method for a display screen as described in any one of claims 1, 3, 4, 5, 6, or 7, characterized in that, The data to be displayed in the corresponding region is processed according to the temperature compensation coefficient of each region, including: For any given region, the final display data corresponding to each point is determined based on the temperature compensation coefficient of the region and the data to be displayed at each point in the region.

9. A temperature compensation device for a display screen, characterized in that, The temperature compensation device for the first display screen includes: An interface module is used to obtain the partition information of the first display screen, wherein the partition information includes: the location range of each region after dividing the first display screen into at least two regions; The sensor management module is used to obtain the temperature information of each region based on the location range of each region in the partition information; The data processing module is used to determine the temperature compensation coefficient of each region based on the temperature information of each region. The driving module is used to process the data to be displayed in the corresponding area according to the temperature compensation coefficient of each area; The data processing module includes: The correction coefficient acquisition unit is used to acquire the cold screen correction coefficient and the hot screen correction coefficient of the first display screen. The cold screen correction coefficient is determined based on the first initial data and the first target data. The first initial data is the initial data of the first display screen in the cold screen state, and the first target data is the target data of the first display screen in the cold screen state. The initial data includes initial brightness and / or initial chromaticity. The hot screen correction coefficient is determined based on the second initial data and the second target data. The second initial data is the initial data of the first display screen in the thermal equilibrium state, and the second target data is the target data of the first display screen in the thermal equilibrium state. The temperature compensation coefficient determination unit is used to determine the temperature compensation coefficient of each region based on the temperature information of each region, the cold screen correction coefficient of the first display screen, and the hot screen correction coefficient of the first display screen.

10. A display system comprising a temperature compensation device for the display screen as described in claim 9, a driving device, and a display screen, wherein the temperature compensation device sends processed data to be displayed to the driving device, and the driving device drives the display screen according to the processed data to be displayed.

11. A display screen, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 8.

12. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 8.

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