Display screen correction method and system and electronic equipment

Abstract

The invention provides a display screen correction method and system and electronic equipment. The method comprises the steps that a display screen is controlled to display a to-be-corrected color; obtaining a standard tristimulus value of the display screen under the color to be corrected; acquiring image information of the display screen under the to-be-corrected color; according to the image information, obtaining display information corresponding to each to-be-corrected lamp bead under the to-be-corrected color; according to the standard tristimulus value and each piece of display information, obtaining brightness and chrominance information corresponding to each to-be-corrected lamp bead, and completing correction of the image information; and correcting the display screen based on the brightness and chrominance information corresponding to each to-be-corrected lamp bead in the to-be-corrected color. According to the method, the brightness and chrominance information acquired by the camera can be corrected, and the difference between the brightness and chrominance extracted from the image information and the actual brightness and chrominance is reduced, so that the relatively accurate brightness and chrominance information can be acquired based on the image information, the brightness and chrominance information of each LED lamp bead does not need to be measured by using a brightness and chrominance measuring instrument, and the measurement efficiency is improved. The correction efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of display screen correction, and in particular to a display screen correction method and system, and an electronic device. Background Art

[0002] The LED display screen is composed of countless LED lamp beads arranged in a matrix form. Different LED lamp beads will cause differences in brightness and chromaticity of the LED display screen due to reasons such as luminous characteristics, brightness attenuation and heat dissipation, thus affecting the display effect of the LED display screen.

[0003] In order to improve the display effect of LED display screens, LED display screens are usually calibrated. During the calibration process, it is often necessary to calibrate based on the actual brightness and chromaticity data of each LED lamp bead to be calibrated. Since there are millions of LED lamp beads in large-size LED display screens, if a high-precision brightness and chromaticity measuring instrument is used to measure the brightness and chromaticity information of each LED lamp bead, the labor cost is high and the calibration efficiency is low. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a display screen calibration method and system, and an electronic device, which can correct the brightness and chromaticity information obtained by a camera, reduce the difference between the brightness and chromaticity extracted from the image information and the actual brightness and chromaticity, so that more accurate brightness and chromaticity information can be obtained based on the image information, and there is no need to use a brightness and chromaticity meter to measure the brightness and chromaticity information of each LED lamp bead, thereby improving the calibration efficiency.

[0005] In the first aspect, a technical solution adopted in the implementation manner of the present application is: to provide a correction method for a display screen, the correction method comprising: controlling the display screen to display the color to be corrected; obtaining the standard tristimulus values ​​of the display screen at the color to be corrected; obtaining the image information of the display screen at the color to be corrected; according to the image information, obtaining the display information corresponding to each lamp bead to be corrected at the color to be corrected, the display information comprising weighted tristimulus values ​​or weighted three RGB values; according to the standard tristimulus values ​​and each of the display information, obtaining the brightness and chromaticity information corresponding to each of the lamp beads to be corrected, and completing the correction of the image information; based on the brightness and chromaticity information corresponding to each of the lamp beads to be corrected at the color to be corrected, the display screen is corrected.

[0006] In some embodiments, obtaining display information corresponding to each lamp bead to be calibrated under the color to be calibrated based on the image information includes: obtaining bright spot display information corresponding to each lamp bead to be calibrated based on the image information; obtaining each display information based on each bright spot display information.

[0007] In some embodiments, the brightness and chromaticity information corresponding to each of the lamp beads to be calibrated is obtained according to the standard tristimulus values ​​and each of the display information, including: obtaining a weighted average display information according to each of the display information; obtaining each of the brightness and chromaticity information according to the standard tristimulus values, the weighted average display information and each of the display information.

[0008] In some embodiments, obtaining the weighted average display information according to each of the display information includes: obtaining the number of each of the lamp beads to be calibrated; and obtaining the weighted average display information according to the number and each of the display information.

[0009] In some embodiments, if the display information is a weighted tristimulus value, then obtaining each of the brightness and chromaticity information according to the standard tristimulus values, the weighted average display information and each of the display information includes: obtaining a correction coefficient according to the standard tristimulus values ​​and the weighted average display information; obtaining each of the brightness and chromaticity information according to the correction coefficient and each of the display information.

[0010] In some embodiments, if the display information is weighted three RGB values, then obtaining each of the brightness and chromaticity information according to the standard three stimulus values, the weighted average display information and each of the display information includes: obtaining a corrected conversion matrix according to the standard three stimulus values ​​and the weighted average display information; obtaining each of the brightness and chromaticity information according to the corrected conversion matrix and each of the display information.

[0011] In some embodiments, the colors to be corrected include red, blue and green; before the brightness and chromaticity information corresponding to each of the lamp beads to be corrected under the colors to be corrected, the correction method also includes: returning to the step of controlling the display screen to display the colors to be corrected until the brightness and chromaticity information corresponding to each of the lamp beads to be corrected under red, blue and green is obtained, thereby completing the correction of the image information under red, blue and green.

[0012] In a second aspect, an embodiment of the present application provides an electronic device, 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 any one of the embodiments of the first aspect above.

[0013] In a third aspect, an embodiment of the present application provides a correction system for a display screen, the correction system comprising: a brightness and chromaticity acquisition device, an image acquisition device, and an electronic device as described in the second aspect; the electronic device is respectively connected to the brightness and chromaticity acquisition device and the image acquisition device.

[0014] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the method described in any one of the embodiments of the first aspect above.

[0015] In a fifth aspect, an embodiment of the present application further provides a computer program product, wherein the computer program product comprises a computer program stored on a computer-readable storage medium, wherein the computer program comprises program instructions, and when the program instructions are executed by a computer, the computer executes the method described in any one of the embodiments of the first aspect above.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: Different from the prior art, the embodiments of the present application provide a correction method and system for a display screen, and an electronic device, the method comprising: controlling the display screen to display the color to be corrected; obtaining the standard tristimulus values ​​of the display screen under the color to be corrected; obtaining the image information of the display screen under the color to be corrected; obtaining the display information corresponding to each lamp bead to be corrected under the color to be corrected according to the image information, the display information comprising weighted tristimulus values ​​or weighted three RGB values; obtaining the brightness and chromaticity information corresponding to each lamp bead to be corrected according to the standard tristimulus values ​​and each display information, and completing the correction of the image information; correcting the display screen based on the brightness and chromaticity information corresponding to each lamp bead to be corrected under the color to be corrected. The method can correct the brightness and chromaticity information obtained by the camera, reduce the difference between the brightness and chromaticity extracted from the image information and the actual brightness and chromaticity, so that more accurate brightness and chromaticity information can be obtained based on the image information, and there is no need to use a brightness and chromaticity measuring instrument to measure the brightness and chromaticity information of each LED lamp bead, thereby improving the correction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a structural schematic diagram of an LED display screen provided in an embodiment of the present application;

[0019] Figure 2 It is a structural block diagram of a display screen correction system provided in an embodiment of the present application;

[0020] Figure 3 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0021] Figure 4It is a flow chart of a method for calibrating a display screen provided in an embodiment of the present application;

[0022] Figure 5 This is a method provided by the embodiment of the present application. Figure 4 Schematic diagram of the process of step S4;

[0023] Figure 6 is a schematic diagram of image information provided by an embodiment of the present application;

[0024] Figure 7 This is a method provided by the embodiment of the present application. Figure 4 Schematic diagram of the process of step S5;

[0025] Figure 8 This is a method provided by the embodiment of the present application. Figure 7 Schematic diagram of the process of step S51;

[0026] Fig. 9 This is a method provided by the embodiment of the present application. Figure 8 Schematic diagram of the process of step S52;

[0027] Fig.10 Another embodiment of the present application provides Figure 8 Schematic diagram of the process of step S52. DETAILED DESCRIPTION

[0028] The present application 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 application, but do not limit the present application in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements can also be made without departing from the concept of the present application. These all belong to the protection scope of the present application.

[0029] For ease of understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those generally understood by those skilled in the art of the present application. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not used to limit the present application. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0030] It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other, all within the scope of protection of the present application. In addition, although the functional module division is performed in the device schematic, in some cases, the module division can be different from that in the device. In addition, the words "first", "second", etc. used herein do not limit the data and execution order, but only distinguish the same items or similar items with basically the same functions and effects.

[0031] like Figure 1 As shown, the LED display screen 10 is usually composed of a plurality of LED modules, each of which includes a plurality of LED lamp beads 11 arranged in an array. However, because the display brightness and color coordinates of the LED lamp beads 11 are discrete, in order to achieve a better display effect, a camera is usually used to take pictures of the red, green, blue, and white displayed on the screen, and the brightness and chromaticity of each lamp bead are extracted. Then, the adjustment coefficient (i.e., the brightness reduction ratio) of each lamp bead is calculated through an algorithm and sent to the LED display screen 10. The LED display screen 10 uses the coefficient to adjust the actual display effect of each lamp bead, so that the consistency of the display effect of the LED display screen 10 and the target color range are closer to the expected effect.

[0032] However, in the actual process of collecting images with a camera, the actual brightness and color of each lamp bead cannot be directly obtained from the image information obtained by the camera due to the influence of related factors such as the difference in lenses, the distance between the camera and the screen, and the exposure time. Currently, there is no processing method for obtaining the brightness and color information of the LED lamp bead 11 from the image provided by the prior art. Therefore, how to process the obtained image to obtain more accurate brightness and color information of the LED lamp bead 11 is an urgent problem to be solved.

[0033] Based on this, the present application proposes a correction method and system for a display screen, and an electronic device. The correction method can correct the brightness and chromaticity information obtained by the camera, reduce the difference between the brightness and chromaticity extracted from the image information and the actual brightness and chromaticity, thereby obtaining more accurate brightness and chromaticity information based on the image information, and there is no need to use a brightness and chromaticity meter to measure the brightness and chromaticity information of each LED lamp bead, thereby improving the correction efficiency.

[0034] First, see Figure 2 , Figure 2 is a structural schematic diagram of a display screen correction system provided in an embodiment of the present application, such as Figure 2 As shown, the correction system includes: an electronic device 20, a brightness and chromaticity acquisition device 30 and an image acquisition device 40, and the electronic device 20 is connected to the image acquisition device 40 and the brightness and chromaticity acquisition device 30 respectively.

[0035] The brightness and chromaticity acquisition device 30 may be a high-precision measuring device that can be used to acquire brightness and chromaticity information of lamp beads. The image acquisition device 40 may be an industrial camera or a digital camera.

[0036] The electronic device 30 is used to execute the correction method for the display screen provided in the embodiment of the present application, and can correct the brightness and chromaticity information obtained by the image acquisition device 40, reduce the difference between the brightness and chromaticity extracted from the image information and the actual brightness and chromaticity, so that more accurate brightness and chromaticity information can be obtained based on the image information, and there is no need to use a brightness and chromaticity meter to measure the brightness and chromaticity information of each LED lamp bead, thereby improving the correction efficiency.

[0037] In a second aspect, the present application also provides an electronic device, see Figure 3 , which shows the hardware structure of an electronic device capable of executing the display screen correction method described in any embodiment of the present application. The electronic device may be Figure 2 The electronic device shown in .

[0038] The electronic device 20 includes: at least one processor 21; and a memory 22 connected to the at least one processor 21 for communication. Figure 3 A processor 21 is taken as an example. The memory 22 stores instructions that can be executed by at least one processor 21, and the instructions are executed by at least one processor 21, so that at least one processor 21 can perform the display screen correction method described in any of the following embodiments. The processor 21 and the memory 22 can be connected via a bus or other means. Figure 3 The example of connecting through bus is taken in the following.

[0039] The memory 22 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 display screen correction method described in the embodiment of the present application. The processor 21 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 22, that is, the display screen correction method described in the following method embodiment is implemented.

[0040] The memory 22 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created or used in the process of executing the following method, etc. In addition, the memory 22 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 22 may optionally include a memory remotely arranged relative to the processor 21, and these remote memories may be connected to the electronic device 20 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 a combination thereof. One or more modules are stored in the memory 22, and when executed by one or more processors 21, the correction method of the display screen in any of the following method embodiments is executed.

[0041] The above 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 display screen calibration method provided in the embodiment of the present application.

[0042] In a third aspect, the present application provides a method for calibrating a display screen. Figure 4 , the correction methods include:

[0043] Step S1: Control the display screen to display the color to be calibrated.

[0044] The display screen is an LED display screen. The electronic device can output the video signal to the LED display screen so that the LED display screen can display the color to be corrected. For details, please refer to Figure 1 , the lamp beads to be calibrated in the area N1 to be calibrated of the LED display screen 10 can display the same color to be calibrated, such as red, green or blue. In addition, the lamp beads in other areas of the LED display screen 10 except the area N1 to be calibrated can also display the same color to be calibrated, or a color different from that of the area N1 to be calibrated, which is convenient for subsequent image processing.

[0045] Step S2: Obtaining standard tristimulus values ​​of the display screen under the color to be calibrated.

[0046] Specifically, a high-precision brightness and chromaticity acquisition device can be attached to the area N1 to be corrected of the LED display screen 10, so that the electronic device can obtain the standard tristimulus values ​​under the color to be corrected. The high-precision brightness and chromaticity acquisition device can be a suitable instrument that can measure the brightness and chromaticity of the LED lamp beads.

[0047] Step S3: Obtaining image information of the display screen under the color to be calibrated.

[0048] Then, after obtaining the standard three stimulus values, the brightness and color acquisition device is removed, and then the electronic device uses the image acquisition device to shoot the LED display screen to obtain image information. The image acquisition device can be an industrial camera or a digital camera.

[0049] Step S4: according to the image information, the display information corresponding to each lamp bead to be calibrated under the color to be calibrated is obtained, and the display information includes weighted tristimulus values ​​or weighted three RGB values.

[0050] It is understandable that the image information includes the image information of the area to be corrected. By processing the image information, the display information corresponding to each lamp bead to be corrected under the color to be corrected can be obtained.

[0051] Step S5: According to the standard three stimulus values ​​and each display information, the brightness and chromaticity information corresponding to each lamp bead to be calibrated is obtained to complete the correction of the image information.

[0052] Next, after obtaining the standard three stimulus values ​​and each display information, the correction coefficient or correction conversion matrix can be calculated to obtain the brightness and chromaticity information corresponding to each lamp bead to be corrected, thus completing the correction of the image information.

[0053] Step S6: calibrating the display screen based on the brightness and chromaticity information corresponding to each lamp bead to be calibrated under the color to be calibrated.

[0054] Finally, the electronic device calculates the adjustment coefficient (i.e., the brightness reduction ratio) corresponding to each lamp bead to be calibrated based on the corrected brightness and chromaticity information of each lamp bead to be calibrated, and sends each adjustment coefficient to the LED display screen. The LED display screen can adjust the actual display effect of each lamp bead according to the adjustment coefficient corresponding to each lamp bead to be calibrated, so that the display effects of each lamp bead to be calibrated on the LED display screen tend to be consistent, thereby realizing the correction of the LED display screen.

[0055] In this embodiment, the image information obtained by the image acquisition device is calibrated by the above method, and the difference between the brightness and chromaticity extracted from the image information and the actual brightness and chromaticity is reduced, so that more accurate brightness and chromaticity information is obtained based on the image information, and then the LED display screen is calibrated based on the brightness and chromaticity information, which can improve the calibration accuracy of the LED display screen and accurately limit the color temperature and color gamut range of the calibrated LED display screen. In addition, this method does not need to use a brightness and chromaticity measuring instrument to measure the brightness and chromaticity information of each LED lamp bead, thereby improving the calibration efficiency.

[0056] In some of these examples, see Figure 5 , step S4 comprises:

[0057] Step S41: Obtaining the bright spot display information corresponding to each lamp bead to be calibrated according to the image information.

[0058] Usually, the image information obtained by the image acquisition device contains image information of the area not to be corrected, so the image information should be processed first to determine the image information of the area to be corrected, and then determine the bright spot corresponding to each lamp bead to be corrected. Figure 6 As shown, after obtaining the image information of the area to be corrected, the bright spot corresponding to each lamp bead to be corrected is determined, that is, the pixel point with a certain brightness corresponding to each lamp bead to be corrected, which can be determined according to the concentration of bright spots in the image information, such as the darker pixel points at the junction of the lamp points (corresponding to the area of ​​the lamp beads to be corrected) are identified as dark spots, and the brighter pixel points in the lamp points are identified as bright spots. The brightness value for defining dark spots and bright spots can be set according to actual needs and is not limited here.

[0059] In this way, after determining the bright spot corresponding to the lamp bead to be calibrated according to the image information, the pixel points corresponding to the lamp bead to be calibrated are obtained, so that the three stimulus values ​​or three RGB values ​​of each bright spot corresponding to each lamp bead to be calibrated can be obtained, that is, the bright spot display information.

[0060] Step S42: Obtaining each display information according to each bright spot display information.

[0061] Specifically, for one of the lamp beads to be calibrated, after obtaining the tristimulus values ​​or three RGB values ​​of each corresponding bright spot, the tristimulus values ​​or three RGB values ​​of each corresponding bright spot are respectively accumulated to obtain the display information corresponding to the lamp bead to be calibrated, that is, the weighted tristimulus values ​​or weighted three RGB values ​​corresponding to the lamp bead to be calibrated.

[0062] It is understandable that if the average brightness of the bright spots corresponding to one of the LED lamp beads is consistent with that of the other lamp beads, but if the number of bright spots corresponding to it is greater, then the lamp bead is brighter.

[0063] In this embodiment, weighted tristimulus values ​​or weighted three RGB values ​​may be obtained by processing the image information.

[0064] In some of these examples, see Figure 7 , step S5 comprises:

[0065] Step S51: Obtain weighted average display information according to each display information.

[0066] The weighted average display information is a weighted average tristimulus value or a weighted average three RGB values. Figure 8 , the step may include:

[0067] Step S511: obtaining the number of each lamp bead to be calibrated;

[0068] Step S512: Obtain weighted average display information according to the quantity and each display information.

[0069] The number of each lamp bead to be calibrated can be set in advance in the electronic device, or input into the electronic device through an input unit. Then, the electronic device can accumulate the weighted tristimulus values ​​of each lamp bead to be calibrated to obtain an accumulated tristimulus value, and then divide the accumulated tristimulus value by the number to obtain a weighted average tristimulus value. Alternatively, the electronic device can accumulate the weighted three RGB values ​​of each lamp bead to be calibrated to obtain an accumulated three RGB value, and then divide the accumulated three RGB value by the number to obtain a weighted average three RGB value.

[0070] Step S52: Obtaining each brightness and chromaticity information according to the standard tristimulus values, the weighted average display information and each display information.

[0071] After obtaining the weighted average display information, the electronic device can use the weighted average display information and the standard tristimulus values ​​to correct each display information, thereby obtaining each brightness and chromaticity information.

[0072] In this embodiment, the display of each lamp bead to be calibrated can be corrected by the above method, so as to obtain the brightness and chromaticity information corresponding to each lamp bead to be calibrated.

[0073] In some embodiments, if the displayed information is weighted tristimulus values, see Fig. 9 , then step S52 includes:

[0074] Step S521: obtaining a correction coefficient according to the standard three stimulus values ​​and the weighted average display information;

[0075] Specifically, if the standard three stimulus values ​​are (Xa, Ya, Za) and the weighted average display information is (Xwa1, Ywa1, Zwa1), the correction coefficient is (Xa / Xwa1, Ya / Ywa1, Za / Zwa1).

[0076] Step S522: Obtaining brightness and chromaticity information according to the correction coefficient and the display information.

[0077] Next, after obtaining the correction coefficient, multiply it by the weighted average display information corresponding to each lamp bead to be calibrated, and the brightness and chromaticity information corresponding to each lamp bead to be calibrated can be obtained. At this time, the brightness and chromaticity information is the tristimulus value.

[0078] In this embodiment, if the display information is weighted tristimulus values, the display information can be corrected according to the above method to complete the calibration.

[0079] In some embodiments, if the display information is weighted three RGB values, see Fig.10 , then step S52 includes:

[0080] Step S523: obtaining a modified conversion matrix according to the standard three stimulus values ​​and the weighted average display information;

[0081] Step S524: Obtaining brightness and chromaticity information according to the modified conversion matrix and the display information.

[0082] In this embodiment, a correction conversion matrix is ​​calculated by using the standard tristimulus values ​​and the weighted average display information, and then the correction conversion matrix is ​​multiplied by each display information to obtain each brightness and chromaticity information. In this case, the brightness and chromaticity information is the tristimulus value. The method for calculating the correction conversion matrix can refer to the prior art and will not be described in detail here.

[0083] It can be seen that in this embodiment, the display information can be corrected in the above manner, and the display information of the three RGB values ​​can be corrected to the actual three stimulus values ​​by correcting the conversion matrix.

[0084] In some embodiments, the colors to be corrected include red, blue and green. Before the brightness and chromaticity information corresponding to each lamp bead to be corrected under the color to be corrected is obtained, the correction method further includes:

[0085] Return to the step of controlling the display screen to display the color to be corrected, until the brightness and chromaticity information corresponding to each lamp bead to be corrected under red, blue and green is obtained, and the correction of the image information under red, blue and green is completed.

[0086] That is, in this embodiment, by repeatedly executing steps S1 to S5, the red, blue and green image information are corrected respectively, so as to obtain the brightness and chromaticity information corresponding to each lamp bead to be corrected under red, blue and green, which is convenient for subsequent correction of the LED display screen.

[0087] In a fourth aspect, an embodiment of the present application further provides a non-volatile computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, which are executed by one or more processors, for example, to execute the display screen correction method described in any one of the embodiments of the third aspect.

[0088] In a fifth aspect, an embodiment of the present application further provides a computer program product, comprising a computer program stored on a non-volatile computer-readable storage medium, wherein the computer program comprises program instructions, and when the program instructions are executed by a computer, the computer executes the display screen correction method described in any one of the embodiments of the third aspect of any of the above-mentioned method embodiments.

[0089] 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.

[0090] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions to use at least one computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. 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 application.

Claims

1. A method for calibrating a display screen, characterized in that: The correction method comprises: The control display screen displays the color to be calibrated; Obtaining standard tristimulus values ​​of the display screen at the color to be corrected; Acquire image information of the display screen at the color to be corrected; According to the image information, display information corresponding to each lamp bead to be calibrated under the color to be calibrated is obtained, wherein the display information includes weighted tristimulus values ​​or weighted three RGB values; According to the standard three stimulus values ​​and the display information, the brightness and chromaticity information corresponding to each of the lamp beads to be calibrated is obtained to complete the correction of the image information; The display screen is calibrated based on the brightness and chromaticity information corresponding to each of the lamp beads to be calibrated under the color to be calibrated.

2. The calibration method according to claim 1, characterized in that: The obtaining, according to the image information, display information corresponding to each lamp bead to be calibrated under the color to be calibrated includes: According to the image information, the bright spot display information corresponding to each of the lamp beads to be calibrated is obtained; According to each of the bright spot display information, each of the display information is obtained.

3. The calibration method according to claim 1 or 2, characterized in that: The step of obtaining the brightness and chromaticity information corresponding to each of the lamp beads to be calibrated according to the standard tristimulus values ​​and each of the display information comprises: Obtaining weighted average display information according to each of the display information; The brightness and chromaticity information is obtained according to the standard tristimulus values, the weighted average display information and the display information.

4. The method according to claim 3, characterized in that The step of obtaining weighted average display information according to each of the display information comprises: Obtaining the number of each of the lamp beads to be calibrated; The weighted average display information is obtained according to the quantity and each display information.

5. The method according to claim 4, characterized in that If the display information is a weighted tristimulus value, then obtaining each of the brightness and chromaticity information according to the standard tristimulus value, the weighted average display information and each of the display information includes: Obtaining a correction coefficient according to the standard tristimulus values ​​and the weighted average display information; The brightness and chromaticity information is obtained according to the correction coefficient and the display information.

6. The method according to claim 4, characterized in that If the display information is weighted three RGB values, then obtaining each of the brightness and chromaticity information according to the standard three stimulus values, the weighted average display information and each of the display information includes: Obtaining a modified conversion matrix according to the standard tristimulus values ​​and the weighted average display information; The brightness and chromaticity information is obtained according to the correction conversion matrix and the display information.

7. The method according to claim 1 or 2, characterized in that: The colors to be corrected include red, blue and green; Before the brightness and chromaticity information corresponding to each of the lamp beads to be calibrated under the color to be calibrated, the calibration method further includes: Return to the step of controlling the display screen to display the color to be corrected until the brightness and chromaticity information corresponding to each of the lamp beads to be corrected under red, blue and green is obtained, and the correction of the image information under red, blue and green is completed.

8. An electronic device, 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 7.

9. A display screen calibration system, characterized in that: include: A brightness and chromaticity acquisition device, an image acquisition device, and an electronic device as claimed in claim 8; The electronic device is connected to the brightness and chromaticity acquisition device and the image acquisition device respectively.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the method according to any one of claims 1 to 7.

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