LED screen adaptive correction method and system, and LED screen

Abstract

The embodiment of the invention relates to the technical field of LED display, and discloses an LED screen self-adaptive correction method and system, and an LED screen. The method comprises the following steps: firstly, setting a simulated heat dissipation environment of the LED screen, and then, carrying out self-adaptive correction on the LED screen within a preset simulated environment temperature range based on the simulated heat dissipation environment. Selecting a plurality of preset simulation temperatures in the simulation environment temperature range according to a preset gradient, performing whole screen correction at each preset simulation temperature to obtain a corresponding correction coefficient, and finally performing adaptive correction on the LED screen based on the correction coefficient and the actual temperature to obtain the LED screen. According to the adaptive correction method provided by the embodiment of the invention, the influence of the heat dissipation condition on the LED screen is considered, the heat dissipation environment can be simulated, the simulated environment temperatures with different numerical values can be set, and the corresponding correction data can be acquired, so that the influence of the heat dissipation environment on the display effect of the LED screen is reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of LED display technology, and in particular to an LED screen adaptive correction method and system, and an LED screen. Background Art

[0002] LED screen, also known as LED display, is an electronic display composed of LED dot matrix, which realizes the display of different contents by controlling the on and off of red, green and blue lamp beads. After the LED screen is started, the screen temperature will gradually increase. As the temperature rises, the display efficiency will gradually decrease, and the display color will shift to red. Therefore, after the LED screen is lit and displayed for a period of time, it is usually necessary to calibrate the LED screen.

[0003] In the process of implementing the embodiments of the present invention, the inventors found that there are at least the following problems in the above-mentioned related technologies: when the LED screen is actually used, it is usually equipped with a metal bracket and other installation methods, which will cause differences in the heat dissipation conditions of different areas of the LED screen. The current LED screen correction method usually only considers the temperature rise of the LED screen itself, and does not consider the impact of the heat dissipation environment on the temperature rise of the LED screen. Summary of the invention

[0004] The embodiments of the present application provide an LED screen adaptive correction method and system, and an LED screen.

[0005] The purpose of the embodiment of the present invention is achieved through the following technical solutions:

[0006] To solve the above technical problems, in the first aspect, an embodiment of the present invention provides an LED screen adaptive correction method, the method comprising: setting a simulated heat dissipation environment of the LED screen; based on the simulated heat dissipation environment, within a preset simulated ambient temperature range, selecting several preset simulated temperatures within the simulated ambient temperature range according to a preset gradient, and performing whole-screen correction at each preset simulated temperature to obtain a corresponding correction coefficient; and adaptively correcting the LED screen based on the correction coefficient and the actual temperature.

[0007] In some embodiments, the simulated heat dissipation environment includes: a simulated LED screen box and a simulated ambient temperature.

[0008] In some embodiments, the box simulating the LED screen includes: a metal bracket simulating fixation on the back of the LED screen shell, a contact material at the edge of the simulated LED screen shell, and / or a heat dissipation space on the back of the simulated LED screen shell.

[0009] In some embodiments, the LED screen includes several display areas, each of which is provided with a receiving card, and the adaptive correction of the LED screen based on the correction coefficient and the actual temperature includes: each receiving card adaptively corrects each of the display areas of the LED screen based on the correction coefficient and the actual temperature.

[0010] In some embodiments, each of the receiving cards performs adaptive correction on each of the display areas of the LED screen based on the correction coefficient and the actual temperature, including: collecting the actual temperature through a temperature collection device; based on the correction coefficient and the actual temperature, correcting the target color gamut of each of the display areas of the LED screen to a consistent color gamut.

[0011] In some embodiments, the whole-screen correction is performed at each preset simulation temperature to obtain a corresponding correction coefficient, including: controlling the LED screen to display monochrome; adjusting the temperature under the current simulation environment to the preset simulation temperatures through a refrigeration device or a heating device, and collecting the ambient temperature when adjusting to each preset simulation temperature; performing the whole-screen correction at each preset simulation temperature to obtain a correction coefficient corresponding to each preset simulation temperature; and calculating the correction coefficient of the ambient temperature based on the comparison result of each preset simulation temperature and the corresponding ambient temperature.

[0012] In some embodiments, the correction coefficient of the monochrome at the ambient temperature is calculated based on the comparison result of each of the preset simulated temperatures and the corresponding ambient temperature, including: if the ambient temperature is greater than the preset simulated temperature, the correction coefficient corresponding to the preset simulated temperature is assigned to the correction coefficient of the ambient temperature; if the ambient temperature is less than or equal to the preset simulated temperature, and the ambient temperature is less than the next preset simulated temperature, the correction coefficient corresponding to the next preset simulated temperature is assigned to the correction coefficient of the ambient temperature; if the ambient temperature is less than or equal to the preset simulated temperature, and the ambient temperature is greater than or equal to the next preset simulated temperature, the correction coefficient of the ambient temperature is calculated by a linear algorithm.

[0013] In some embodiments, the calculation formula for calculating the correction coefficient of the ambient temperature by the linear algorithm is as follows:

[0014] Ccr(x,y)=C2r(x,y)+(Tc-T2)(C1r(x,y)-C2r(x,y)) / (T1-T2)

[0015] Among them, Tc represents the ambient temperature, T1 represents the preset simulation temperature, T2 represents the next preset simulation temperature, Ccr(x, y) represents the correction coefficient of the ambient temperature, C1r(x, y) represents the correction coefficient corresponding to the preset simulation temperature, and C2r(x, y) represents the correction coefficient corresponding to the next preset simulation temperature.

[0016] To solve the above technical problems, in a second aspect, an embodiment of the present invention provides an LED screen, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method described in the first aspect above.

[0017] To solve the above technical problems, in the third aspect, an embodiment of the present invention further provides an LED screen adaptive correction system, comprising: the LED screen as described in the second aspect, comprising a plurality of receiving cards, the receiving cards being communicatively connected to the processor; a temperature acquisition device, for collecting ambient temperature or actual temperature; a sending box, respectively connected to the temperature acquisition device and the plurality of receiving cards, for sending the ambient temperature or the actual temperature to each of the receiving cards.

[0018] Compared with the prior art, the beneficial effects of the present invention are: different from the prior art, an embodiment of the present invention provides an LED screen adaptive correction method and system, and an LED screen. The method can first set a simulated heat dissipation environment for the LED screen, and then based on the simulated heat dissipation environment, within a preset simulated ambient temperature range, select several preset simulated temperatures within the simulated ambient temperature range according to a preset gradient, and perform whole-screen correction at each preset simulated temperature to obtain a corresponding correction coefficient, and finally adaptively correct the LED screen based on the correction coefficient and the actual temperature. The adaptive correction method provided in the embodiment of the present invention takes into account the influence of heat dissipation conditions on the LED screen, and can simulate the heat dissipation environment and set simulated ambient temperatures of different values ​​and obtain corresponding correction data to reduce the influence of the heat dissipation environment on the display effect of the LED screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements / modules and steps with the same reference numerals in the drawings are represented as similar elements / modules and steps. Unless otherwise specified, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1It is a flowchart of an LED screen adaptive correction method provided by Embodiment 1 of the present invention;

[0021] Figure 2 This is an example diagram of an installation method of an LED screen provided by an embodiment of the present invention;

[0022] Figure 3 This is a diagram showing the distribution and configuration of heat generating devices in an LED screen provided by an embodiment of the present invention;

[0023] Figure 4 yes Figure 1 A schematic diagram of a sub-process of step S200 in the LED screen adaptive correction method shown;

[0024] Figure 5 yes Figure 1 A schematic diagram of a sub-process of step S300 in the LED screen adaptive correction method shown;

[0025] Figure 6 This is a schematic diagram of the structure of an LED screen provided in the second embodiment of the present invention;

[0026] Figure 7 It is a structural block diagram of an LED screen adaptive correction system provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that, if there is no conflict, the various features in the embodiments of the present invention can be combined with each other, all within the scope of protection of the present application. In addition, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the flow chart. It should be noted that when an element is described as "connected" to another element, it can be directly connected to the other element, or there can be one or more intermediate elements in between.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0031] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] In order to solve the problem that the heat dissipation environment of the LED screen is different due to different installation environments and different installation methods during actual installation, and the display effects of the existing LED screen correction method are different after correction in different heat dissipation environments, the embodiments of the present invention provide an LED screen adaptive correction method and system, and an LED screen, which can preset different simulated heat dissipation environments, and perform whole-screen correction based on the simulated heat dissipation environment and the simulated ambient temperature to obtain a correction coefficient, thereby realizing adaptive correction of the LED screen.

[0033] Specifically, the embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0034] Embodiment 1

[0035] The embodiment of the present invention provides a LED screen adaptive correction method, see Figure 1 , which shows the process of an LED screen adaptive correction method provided by an embodiment of the present invention, the method includes but is not limited to the following steps:

[0036] Step S100: Setting a simulated heat dissipation environment of the LED screen;

[0037] When actually installing the LED screen / LED display, on the one hand, there are different installation methods based on different usage scenarios. For example, it may be a wall-mounted installation, or installed on the wall with a metal bracket, or placed directly on a countertop or desktop with a bracket. These will cause differences in the heat dissipation speed of the LED screen, and thus cause differences in the heating and cooling speeds of the LED screen; on the other hand, there will also be differences in ambient temperature based on different geographical locations and usage scenarios, such as the temperature difference between the north and the south in winter, and the temperature difference between indoors and outdoors. The lower the temperature, the greater the temperature difference of the screen, which will also cause differences in the heat dissipation of the LED screen, and thus cause differences in the heating and cooling speeds of the LED screen.

[0038] Wherein, the simulated heat dissipation environment includes: a simulated LED screen box and a simulated ambient temperature. It should be noted that when simulating the LED screen box, the LED screen is regarded as a box, and based on one or more installation methods of the LED screen or the device or product used by the LED screen, the adaptive correction method provided by the embodiment of the present invention can be respectively executed to obtain the correction coefficients of different ambient temperatures under various installation methods to achieve adaptive correction. Further, the simulated heat dissipation environment can also include: simulating the heat-generating electronic components in the LED screen. The simulated LED screen box includes: simulating the metal bracket fixed on the back of the LED screen shell, simulating the edge contact material of the LED screen shell, and / or simulating the heat dissipation space on the back of the LED screen shell. Wherein, since the LED screen has different heat dissipation differences due to the different contact objects of the edge part when it is installed in a wall, when simulating the LED screen box, the simulated LED screen shell edge contact material can also be used.

[0039] For example, see Figure 2 , which shows an example diagram of an installation method of an LED screen, specifically an example of an LED screen being installed on a wall through two horizontal metal brackets and two vertical metal brackets. Since the back panel shell of the LED screen is usually a plastic shell, it is obvious that the heat dissipation speed at the metal bracket is faster than that at the non-metal bracket. And, if it is assumed that the ambient temperature is 25°C, the screen temperature at the metal bracket behind the heat screen is denoted as CM1, and the temperature at the non-metal bracket is denoted as CS1, then the temperature difference between the metal bracket and the non-metal bracket is CS1-CM1; and if it is assumed that the ambient temperature is 0°C, the screen temperature at the metal bracket behind the heat screen is denoted as CM2, and the temperature at the non-metal bracket is denoted as CS2, then the temperature difference between the metal bracket and the non-metal bracket is CS2-CM2. Since the thermal conductivity of metal is significantly higher than that of air, it can be obtained that (CS2-CM2)>(CS1-CM1), that is, the lower the ambient temperature, the greater the temperature difference of the screen. From Figure 2 It is not difficult to see from the examples shown that the installation structure and method will affect the screen temperature difference, and the ambient temperature will also affect the screen temperature difference. Therefore, when simulating the heat dissipation environment, the embodiments of the present invention need to simulate the box containing the installation scenario and different ambient temperatures.

[0040] For another example, see Figure 3, which shows the distribution and configuration of heat-generating devices in an LED screen. Specifically, a number of chips are arranged in the LED screen, and a power supply is arranged in the central area. The chip and the power supply are both the main heat-generating modules or units in the LED screen. The temperature is usually higher near the chip and the power supply. Therefore, preferably, when simulating the cabinet of the LED screen, the position and heat-generating power of the chip, power supply and other heat-generating devices in the cabinet can also be simulated based on the circuit structure in the LED screen to establish a heat dissipation environment model.

[0041] It should be noted that the simulated heat dissipation environment can be set according to actual needs. For example, the metal bracket is not limited to Figure 2 The examples shown can be set according to the material, contact surface, shape, etc. of the actual product. For another example, the arrangement of the heating components in the LED screen is not limited to Figure 3 The examples shown can be configured according to the actual design of the circuit board, and do not need to be limited to the limitations of the embodiments of the present invention.

[0042] Step S200: Based on the simulated heat dissipation environment, within a preset simulated ambient temperature range, a plurality of preset simulated temperatures are selected within the simulated ambient temperature range according to a preset gradient, and full-screen calibration is performed at each preset simulated temperature to obtain a corresponding correction coefficient;

[0043] After simulating one or more heat dissipation environments, for each simulated heat dissipation environment, the whole screen can be corrected within the preset simulated environment temperature range to obtain correction data. Among them, the preset simulated environment temperature range can be set according to indoor and outdoor scenes, or regions. For example, for the northwest region with a large temperature difference between day and night, the range can be set larger, such as -10℃-40℃. For the Lingnan region with four seasons like spring, the range can be set smaller, such as 10℃-30℃. In addition, the preset gradient can be set as needed. For example, when 10℃ is a gradient, the simulated environment temperature range of 10℃-30℃ can be divided into three preset simulation temperatures of 10℃, 20℃, and 30℃. The ambient temperature can be adjusted to these three preset simulation temperatures and then the whole screen is corrected and the correction coefficient is obtained. In addition, it can also be set based on different seasons and indoor and outdoor scenes. Specifically, the simulated environment temperature range, preset gradient and several preset simulation temperatures can be set according to actual needs, without being restricted to the limitations of the embodiments of the present invention.

[0044] Also, when performing full screen calibration at each preset simulation temperature, please refer to Figure 4 , which shows Figure 1 A sub-process of step S200 in the LED screen adaptive correction method shown, step S200, that is, performing full screen correction at each preset simulation temperature to obtain a corresponding correction coefficient, includes:

[0045] Step S210: Control the LED screen to display monochrome;

[0046] Since LED screens usually use LED lamp beads of the three primary colors of red, green and blue to achieve color display, and for different colors, the red shift of the displayed color when the temperature rises is usually different, therefore, preferably, the present application can control the LED screen to display a single color and perform simulation correction on the single color to obtain a single color correction coefficient, so that LED lamps of different colors can be adaptively corrected based on the correction coefficient corresponding to the color when actually used. It should be noted that the following embodiments of the present invention are described using a red LED lamp as an example.

[0047] Step S220: adjusting the temperature in the current simulated environment to the plurality of preset simulated temperatures by means of a refrigeration device or a heating device, and collecting the ambient temperature when the ambient temperature is adjusted to each preset simulated temperature;

[0048] After determining a certain simulated environment and controlling the LED screen to display a certain color, the embodiment of the present invention can also simulate different ambient temperatures through refrigeration equipment or heating equipment, so as to perform simulation correction at different ambient temperatures and obtain correction coefficients at different ambient temperatures. The refrigeration equipment can be an air conditioner, a cold air machine or other equipment that can reduce the ambient temperature in the experimental space, and the heating equipment can be a heater, a boiler or other equipment that can increase the ambient temperature in the experimental space. In addition, usually, due to the temperature control capability of the refrigeration equipment or the heating equipment, or the complexity of the experimental space, the preset simulation temperature is not necessarily the same as the actual ambient temperature. Therefore, the actual ambient temperature can also be collected through a temperature acquisition device, such as a temperature sensor or a thermometer, for subsequent determination of the correction coefficient.

[0049] Step S230: performing full-screen calibration at each preset simulation temperature to obtain a calibration coefficient corresponding to each preset simulation temperature;

[0050] After selecting several preset simulation temperatures within the simulated ambient temperature range according to the preset gradient, perform full-screen calibration at each preset ambient temperature, wherein the full-screen calibration may be a full-screen calibration of the brightness, chromaticity, etc. of the LED screen, and obtain a corresponding correction coefficient, and the correction parameters may be set according to actual needs. Specifically, the temperature in the current simulated environment may be adjusted to the highest temperature within the simulated ambient temperature range, for example, after adjusting to the conventional room temperature T1, perform full-screen calibration and obtain a correction coefficient C1, then, after lowering the ambient temperature to T2 according to the preset gradient, perform full-screen calibration again and obtain a correction coefficient C2, and so on, until the temperature in the current simulated environment is adjusted to the lowest temperature within the simulated ambient temperature range and obtain a corresponding correction coefficient.

[0051] Step S240: Calculate the correction coefficient of the ambient temperature based on the comparison results between each of the preset simulated temperatures and the corresponding ambient temperature.

[0052] Further, as described in step S220, since the ambient temperature may not necessarily be consistent with the preset simulated temperature, after obtaining the correction coefficients corresponding to each preset simulated temperature, it is not possible to directly output the correction coefficients of each preset simulated temperature for the set heat dissipation environment and the selected single color. It is also necessary to compare whether each preset simulated temperature is consistent with the corresponding ambient temperature. If not, update the preset simulated temperature to the ambient temperature, re-determine the correction coefficient of this ambient temperature, and save it as the final correction data.

[0053] Specifically, taking the correction coefficient of the preset simulated temperature T1 as C1 and the correction coefficient of the next preset simulated temperature T2 as C2 as an example, and taking the single color of the LED screen displaying red r as an example, for each LED bead (x, y), the correction coefficient can be specifically updated as follows:

[0054] If the ambient temperature Tc is greater than the preset simulated temperature T1, assign the correction coefficient C1r(x, y) corresponding to the preset simulated temperature T1 to the correction coefficient Ccr(x, y) of the ambient temperature Tc; that is, when Tc > T1, Ccr(x, y) = C1r(x, y);

[0055] If the ambient temperature Tc is less than or equal to the preset simulated temperature T1 and the ambient temperature Tc is less than the next preset simulated temperature T2, assign the correction coefficient C2r(x, y) corresponding to the next preset simulated temperature T2 to the correction coefficient Ccr(x, y) of the ambient temperature Tc; that is, when Tc ≤ T1 and Tc < T2, Ccr(x, y) = C2r(x, y);

[0056] If the ambient temperature Tc is less than or equal to the preset simulated temperature T1 and the ambient temperature Tc is greater than or equal to the next preset simulated temperature T2, calculate the correction coefficient Ccr(x, y) of the ambient temperature Tc through a linear algorithm; the calculation formula for calculating the correction coefficient of the ambient temperature through the linear algorithm is as follows:

[0057] Ccr(x, y) = C2r(x, y)+(Tc - T2)(C1r(x, y)-C2r(x, y)) / (T1 - T2)

[0058] Among them, (x, y) represents the position coordinates of the LED lamp bead, Tc represents the ambient temperature, T1 represents the preset simulation temperature, T2 represents the next preset simulation temperature, Ccr(x, y) represents the correction coefficient of the ambient temperature, C1r(x, y) represents the correction coefficient corresponding to the preset simulation temperature, and C2r(x, y) represents the correction coefficient corresponding to the next preset simulation temperature.

[0059] Furthermore, since it takes a lot of time and cost to calibrate each simulated cooling environment and each screen each time, it is also possible to generate a separate Figure 2 The temperature model of the metal bracket area shown, for example, the metal bracket is removed at temperature T1 and the corresponding correction coefficient CN1 is generated, then CN1 / C1 is the correction coefficient of the metal bracket area at temperature T1, that is, the model parameter of the metal bracket area. At this time, if a box with a correction coefficient CO1 generated at temperature T1 is added, then the correction coefficient of the metal area of ​​the LED screen after removing the metal bracket at temperature T1 can be expressed as CO1*(CN1 / C1). If the correction coefficient at the metal bracket is 0.9 and the correction coefficient at the non-metal bracket is 0.8, then the correction coefficient at the metal bracket after removing the metal bracket = 0.9 / 0.8 ​​= 1.125. If it is assumed that the correction coefficient CO1 = 0.75 is generated, then the correction coefficient of the metal area of ​​the LED screen after removing the metal bracket = 0.75*(0.9 / 0.8) = 0.84375.

[0060] Step S300: Adaptively calibrating the LED screen based on the correction coefficient and the actual temperature.

[0061] After obtaining the correction coefficient corresponding to each preset simulated temperature in each single color under each simulated heat dissipation environment through the above steps, the correction coefficient can be sent to the receiving card in the LED screen and preset in the LED screen before leaving the factory. Therefore, when the LED screen is actually used, the corresponding correction coefficient can be called for adaptive correction according to the actual temperature and usage scenario actually collected.

[0062] Preferably, in an embodiment of the present invention, the LED screen includes a plurality of display areas, each of which is provided with a receiving card, and the adaptive correction of the LED screen based on the correction coefficient and the actual temperature comprises: each receiving card adaptively corrects each of the display areas of the LED screen based on the correction coefficient and the actual temperature. Figure 5 , which shows Figure 1 A sub-process of step S300 in the LED screen adaptive correction method, wherein each of the receiving cards adaptively corrects each of the display areas of the LED screen based on the correction coefficient and the actual temperature, further includes:

[0063] Step S310: collecting actual temperature through a temperature collection device;

[0064] In actual use, the LED screen can first collect the actual temperature of the scene through a temperature collection device. Specifically, the temperature collection device can be a temperature sensor or a thermometer, etc., and preferably, the temperature collection device is a temperature collection device that is not arranged inside the LED screen, or is placed at a position such as the inner edge of the LED screen that can detect a position close to the actual temperature of the outside world.

[0065] Step S320: Based on the correction coefficient and the actual temperature, the target color gamut of each display area of ​​the LED screen is corrected to a consistent color gamut.

[0066] Based on the actual temperature collected, the correction coefficient obtained in step S200 corresponding to the actual temperature can be determined by looking up a table. It should be noted that in step S200, since the whole screen simulation correction is performed after the ambient temperature is adjusted to each preset simulation temperature, there may be a situation where each preset simulation temperature does not include the actual temperature during simulation. Therefore, for the correction coefficient corresponding to each preset simulation temperature obtained or the preset simulation temperature after updating to the ambient temperature and its corresponding correction coefficient or the updated correction coefficient, the final obtained temperature and correction coefficient can be fitted to obtain a correction curve or formula, and the actual temperature collected is substituted into the correction curve or formula to obtain the corresponding correction coefficient. Then, the LED screen is adaptively corrected based on the obtained correction coefficient, and it is necessary to ensure that the color gamut of the display area corresponding to each receiving card after correction is consistent.

[0067] Embodiment 2

[0068] The embodiment of the present invention provides an LED screen, see Figure 6 , which shows that it is possible to execute Figure 1 , Figure 4 , Figure 5 The hardware structure of the server of the LED screen adaptive correction method described in its embodiment.

[0069] The LED screen 10 includes: at least one processor 11; and a memory 12 connected to the at least one processor 11 for communication. Figure 6 The memory 12 stores instructions that can be executed by the at least one processor 11, and the instructions are executed by the at least one processor 11 so that the at least one processor 11 can perform the above Figure 1 , Figure 4 , Figure 5The LED screen adaptive correction method described in the embodiment thereof. The processor 11 and the memory 12 can be connected via a bus or other means, Figure 6 The example of connecting through bus is taken in the following.

[0070] The memory 12 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the LED screen adaptive correction method in the embodiment of the present application. The processor 11 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 12, that is, the LED screen adaptive correction method in the above method embodiment is implemented.

[0071] The memory 12 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the LED screen adaptive correction device, etc. In addition, the memory 12 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 12 may optionally include a memory remotely arranged relative to the processor 11, and these remote memories may be connected to the LED screen adaptive correction device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0072] The one or more modules are stored in the memory 12, and when executed by the one or more processors 11, the LED screen adaptive correction method in any of the above method embodiments is executed, for example, the above described Figure 1 , Figure 4 , Figure 5 and method steps of embodiments thereof.

[0073] The above-mentioned product can execute the method provided in the embodiment of the present application, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not fully described in this embodiment, please refer to the method provided in the embodiment of the present application.

[0074] The present application also provides a non-volatile computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by one or more processors, for example, to execute the above-described Figure 1 , Figure 4 , Figure 5 and method steps of embodiments thereof.

[0075] The present application also provides a computer program product, including a computer program stored on a non-volatile computer-readable storage medium, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the LED screen adaptive correction method in any of the above method embodiments, for example, executing the above described Figure 1 , Figure 4 , Figure 5 and method steps of embodiments thereof.

[0076] Embodiment 3

[0077] The embodiment of the present invention provides an LED screen adaptive correction system, see Figure 7 , which shows a structural block diagram of an LED screen adaptive correction system provided by an embodiment of the present invention. The LED screen adaptive correction system 100 includes: an LED screen 10, a temperature acquisition device 20 and a sending box 30.

[0078] The LED screen 10 is the LED screen 10 described in Example 2, and the LED screen 10 includes a plurality of receiving cards 10a, and the receiving cards 10a are communicatively connected with the processor 11 described in Example 2; before leaving the factory, the LED screen 10 can obtain the correction coefficient by executing the LED screen adaptive correction method provided in the embodiment of the present invention, and after leaving the factory, each receiving card 10a can perform adaptive correction based on the correction coefficient.

[0079] The temperature acquisition device 20 is used to acquire the ambient temperature or the actual temperature; the temperature acquisition device 20 may be a temperature sensor, a thermometer, etc., which is used to acquire the ambient temperature for simulation correction before leaving the factory, and / or, after leaving the factory, to acquire the actual temperature for adaptive correction. It should be noted that the temperature acquisition device 20 used for simulation correction before leaving the factory and the temperature acquisition device 20 for correction after leaving the factory may be the same device or different devices, and may be selected according to actual needs.

[0080] The sending box 30 is connected to the temperature acquisition device 20 and the plurality of receiving cards 10 a respectively, and is used to send the ambient temperature or the actual temperature to each of the receiving cards 10 a.

[0081] An embodiment of the present invention provides an LED screen adaptive correction method and system, and an LED screen. The method can first set a simulated heat dissipation environment for the LED screen, and then based on the simulated heat dissipation environment, select several preset simulated temperatures within the preset simulated ambient temperature range according to a preset gradient, and perform whole-screen correction at each preset simulated temperature to obtain a corresponding correction coefficient. Finally, based on the correction coefficient and the actual temperature, the LED screen is adaptively corrected. The adaptive correction method provided in the embodiment of the present invention takes into account the influence of heat dissipation conditions on the LED screen, and can simulate the heat dissipation environment and set simulated ambient temperatures of different values ​​and obtain corresponding correction data to reduce the influence of the heat dissipation environment on the display effect of the LED screen.

[0082] It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0083] Through the description of the above implementation methods, ordinary technicians in this field can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Ordinary technicians in this field can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A LED screen adaptive correction method, characterized in that: The method comprises: Set up a simulated heat dissipation environment for the LED screen; Based on the simulated heat dissipation environment, within a preset simulated ambient temperature range, a plurality of preset simulated temperatures are selected within the simulated ambient temperature range according to a preset gradient, and full-screen correction is performed at each preset simulated temperature to obtain a corresponding correction coefficient; The LED screen is adaptively corrected based on the correction coefficient and the actual temperature.

2. The LED screen adaptive correction method according to claim 1, characterized in that: The simulated heat dissipation environment includes: a simulated LED screen box and a simulated ambient temperature.

3. The LED screen adaptive correction method according to claim 2, characterized in that: The box body simulating the LED screen includes: a metal bracket simulating the metal bracket fixed on the back of the LED screen shell, a material contacting the edge of the LED screen shell, and / or a heat dissipation space simulating the back of the LED screen shell.

4. The LED screen adaptive correction method according to claim 1, characterized in that: The LED screen includes several display areas, each of which is provided with a receiving card. The method of adaptively correcting the LED screen based on the correction coefficient and the actual temperature includes: Each of the receiving cards performs adaptive correction on each of the display areas of the LED screen based on the correction coefficient and the actual temperature.

5. The LED screen adaptive correction method according to claim 4, characterized in that: Each of the receiving cards performs adaptive correction on each of the display areas of the LED screen based on the correction coefficient and the actual temperature, including: Collect the actual temperature through the temperature collection device; Based on the correction coefficient and the actual temperature, the target color gamut of each display area of ​​the LED screen is corrected to a consistent color gamut.

6. The LED screen adaptive correction method according to any one of claims 1 to 5, characterized in that: The whole screen calibration is performed at each preset simulation temperature to obtain a corresponding calibration coefficient, including: Control the LED screen to display monochrome; Adjusting the temperature in the current simulated environment to the plurality of preset simulated temperatures by means of a refrigeration device or a heating device, and collecting the ambient temperature when adjusting to each preset simulated temperature; Performing full-screen calibration at each preset simulation temperature to obtain a correction coefficient corresponding to each preset simulation temperature; Based on the comparison result between each of the preset simulation temperatures and the corresponding ambient temperature, a correction coefficient of the ambient temperature is calculated.

7. The LED screen adaptive correction method according to claim 6, characterized in that: The step of calculating the correction coefficient of the single color at the ambient temperature based on the comparison result between each of the preset simulation temperatures and the corresponding ambient temperature comprises: If the ambient temperature is greater than the preset simulation temperature, assigning the correction coefficient corresponding to the preset simulation temperature to the correction coefficient of the ambient temperature; If the ambient temperature is less than or equal to the preset simulation temperature, and the ambient temperature is less than the next preset simulation temperature, assigning the correction coefficient corresponding to the next preset simulation temperature to the correction coefficient of the ambient temperature; If the ambient temperature is less than or equal to the preset simulation temperature, and the ambient temperature is greater than or equal to the next preset simulation temperature, a correction coefficient of the ambient temperature is calculated by a linear algorithm.

8. The LED screen adaptive correction method according to claim 7, characterized in that: The calculation formula for calculating the correction coefficient of the ambient temperature by the linear algorithm is as follows: Ccr(x,y)=C2r(x,y)+(Tc-T2)(C1r(x,y)-C2r(x,y)) / (T1-T2) wherein Tc represents the ambient temperature, T1 represents the preset simulation temperature, T2 represents the next preset simulation temperature, Ccr(x,y) represents the correction coefficient of the ambient temperature, C1r(x,y) represents the correction coefficient corresponding to the preset simulation temperature, and C2r(x,y) represents the correction coefficient corresponding to the next preset simulation temperature.

9. An LED screen, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 8.

10. An LED screen adaptive correction system, characterized in that: include: The LED screen according to claim 9, comprising a plurality of receiving cards, wherein the receiving cards are communicatively connected to the processor; Temperature collection equipment, used to collect ambient temperature or actual temperature; The sending box is connected to the temperature acquisition device and the plurality of receiving cards respectively, and is used to send the ambient temperature or the actual temperature to each of the receiving cards.

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