Display screen correction method and system and electronic equipment

Abstract

The invention provides a display screen correction method and system, and electronic equipment, and the method comprises the steps: controlling each boundary lamp bead in a display screen to display a mark color, each non-boundary lamp bead to display a to-be-corrected color, the to-be-corrected color is different from a correction color, and an area formed by enclosing each boundary lamp bead comprises a to-be-corrected area; obtaining standard brightness and chrominance information of the to-be-corrected area; acquiring image information of the display screen; obtaining image information of the to-be-corrected area based on the image information and the mark color; according to the standard brightness and chrominance information and the image information of the to-be-corrected area, obtaining corrected brightness and chrominance information corresponding to each to-be-corrected lamp bead in the to-be-corrected area; and correcting the display screen based on the corrected brightness and chrominance information. According to the method, each boundary lamp bead of the display screen is controlled to display the correction color, when the image information is processed subsequently, the to-be-corrected area in the image information can be quickly determined according to the boundary lamp beads, and the operation convenience 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] Because the display brightness and color coordinates of LED lamp beads are discrete, in order to achieve a better display effect, it is necessary to use a camera to take pictures of the red, green, blue and white displayed on the screen, extract the display brightness and color coordinates of each lamp bead, and then calculate based on the display brightness and color coordinates of each lamp bead to adjust each lamp bead, so that the consistency of the LED display effect and the target color gamut are closer to our immediate effect.

[0003] In the actual acquisition of the camera, due to the influence of factors such as the difference in lenses, the distance between the camera and the screen, and the exposure time, we cannot directly obtain the brightness and color coordinates actually displayed on the screen from the graphics obtained by the camera. Figure 1 As shown, it is necessary to add a high-precision brightness and chromaticity acquisition device to collect the actual brightness and chromaticity of the area N1 to be corrected, and pass this part of data to the algorithm to correct the image through the algorithm.

[0004] When correcting the graphics, it is necessary to match the area N1 to be corrected collected by the high-precision brightness and color acquisition device with the area in the actual picture. However, because the LED display screen is usually large, and the area N1 to be corrected in the LED display screen 10 is small, it is difficult to match the picture with the area N1 to be corrected. Generally, physical methods can be used for marking, such as sticking tape on the edge of the area N1 to be corrected, and marking the area according to the position of the tape in the picture when taking pictures; or other physical marking methods can be used to achieve it. However, this method of physical marking is cumbersome to operate, and the use of tape is prone to residue on the display screen, affecting the normal display of the screen. Summary of the invention

[0005] The embodiments of the present application provide a correction method and system for a display screen, and an electronic device. The method controls each boundary lamp bead of the display screen to display a correction color. The area enclosed by the boundary lamp beads includes an area to be corrected, and the area is different from the color to be corrected. When the image information is subsequently processed, the area to be corrected in the image information can be quickly determined based on the boundary lamp beads, thereby improving operational convenience.

[0006] 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 each boundary lamp bead in the display screen to display a mark color and each non-border lamp bead to display a color to be corrected, the color to be corrected is different from the correction color, and the area enclosed by each of the boundary lamp beads includes the area to be corrected; obtaining standard brightness and chromaticity information of the area to be corrected; obtaining image information of the display screen; based on the image information and the mark color, obtaining image information of the area to be corrected; according to the standard brightness and chromaticity information and the image information of the area to be corrected, obtaining the corrected brightness and chromaticity information corresponding to each lamp bead to be corrected in the area to be corrected; and correcting the display screen based on each of the corrected brightness and chromaticity information.

[0007] In some embodiments, before each boundary lamp bead in the control display screen displays a mark color, the correction method includes: obtaining the size of the brightness and chromaticity acquisition device and the dot spacing of the display screen, and according to the size and the dot spacing, obtaining the number of lamp beads on a boundary of the area enclosed by each of the boundary lamp beads, wherein the dot spacing is the distance between the center points of two adjacent lamp beads on the display screen; and determining each of the boundary lamp beads according to the number of lamp beads.

[0008] In some embodiments, the area enclosed by each of the boundary lamp beads is a rectangle, and obtaining the standard brightness and chromaticity information of the area to be corrected includes: obtaining the standard brightness and chromaticity information through the brightness and chromaticity acquisition device, and the outer frame of the brightness and chromaticity acquisition device is circular.

[0009] In some embodiments, the number of lamp beads L is calculated by the following formula:

[0010] L = D / d + 2;

[0011] Wherein, D is the diameter of the circle, and d is the point interval.

[0012] In some embodiments, the standard brightness and chromaticity information includes standard tristimulus values ​​or standard three RGB values.

[0013] In some embodiments, the modified luminance and chromaticity information includes modified tristimulus values ​​or modified three RGB values.

[0014] In some embodiments, based on the standard brightness and chromaticity information and the image information of the area to be corrected, the corrected brightness and chromaticity information corresponding to each lamp bead to be corrected in the area to be corrected is obtained, including: based on the image information of the area to be corrected, obtaining the display information corresponding to each lamp bead to be corrected; based on the standard brightness and chromaticity information and each display information, obtaining each corrected brightness and chromaticity information.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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 each boundary lamp bead in the display screen to display a marking color, each non-boundary lamp bead to display a color to be corrected, the color to be corrected is different from the correction color, and the area enclosed by each boundary lamp bead includes the area to be corrected; obtaining standard brightness and chromaticity information of the area to be corrected; obtaining image information of the display screen; obtaining image information of the area to be corrected based on the image information and the marking color; obtaining corrected brightness and chromaticity information corresponding to each lamp bead to be corrected in the area to be corrected based on the standard brightness and chromaticity information and the image information of the area to be corrected; and correcting the display screen based on each corrected brightness and chromaticity information. The method controls each boundary lamp bead of the display screen to display a correction color, and when the image information is subsequently processed, the area to be corrected in the image information can be quickly determined based on the boundary lamp bead, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is a schematic diagram of correction of a display screen provided in the prior art;

[0022] Figure 2 It is a structural schematic diagram of a display screen correction system provided in an embodiment of the present application;

[0023] Figure 3 is a structural block diagram of an electronic device provided in an embodiment of the present application;

[0024] Figure 4 It is a flow chart of a method for calibrating a display screen provided in an embodiment of the present application;

[0025] Figure 5 This is a calibration schematic diagram of a display screen provided in an embodiment of the present application;

[0026] Figure 6 It is a partial flow chart of a method for calibrating a display screen provided in an embodiment of the present application;

[0027] Figure 7 This is a method provided by the embodiment of the present application. Figure 4 Schematic diagram of the process of step S5;

[0028] Figure 8 This is a schematic diagram of image information provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In the process of calibrating the LED display screen, the brightness and chromaticity information is usually extracted through the image information collected by the image acquisition device. In order to ensure that the extracted brightness and chromaticity information is close to the actual brightness and chromaticity information, it is often necessary to calibrate the extracted brightness and chromaticity information using the standard brightness and chromaticity information collected by the high-precision brightness and chromaticity acquisition device. The subsequent calibration based on the calibrated brightness and chromaticity information can improve the accuracy of the calibration. In the calibration process, it is necessary to correspond the area collected by the brightness and chromaticity acquisition device with the area collected by the image acquisition device, and the use of physical marking (such as sticking tape on the screen) is cumbersome and may affect the display effect of the screen.

[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 display the correction color by controlling each boundary lamp bead of the display screen. When the image information is subsequently processed, the area to be corrected in the image information can be quickly determined according to the boundary lamp beads, thereby improving the convenience of operation.

[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: a brightness and chromaticity acquisition device 20, an electronic device 30 and an image acquisition device 40, and the electronic device 30 is connected to the image acquisition device 40 and the brightness and chromaticity acquisition device 20 respectively.

[0035] The brightness and chromaticity acquisition device 20 may be a high-precision measuring device that can be used to acquire the brightness and chromaticity information of lamp beads, and it may be a suitable instrument that can measure the brightness and chromaticity of LED lamp beads.

[0036] The image acquisition device 40 may be an industrial camera or a digital camera.

[0037] The electronic device 30 is used to execute the display screen correction method provided in the embodiment of the present application. By controlling the boundary lamp beads of the display screen to display the correction color, when the image information is subsequently processed, the area to be corrected in the image information can be quickly determined according to the boundary lamp beads, thereby improving the convenience of operation.

[0038] 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 .

[0039] The electronic device 30 includes: at least one processor 31; and a memory 32 connected to the at least one processor 31 for communication. Figure 3 A processor 31 is taken as an example. The memory 32 stores instructions that can be executed by at least one processor 31, and the instructions are executed by at least one processor 31, so that at least one processor 31 can perform the display screen correction method described in any of the following embodiments. The processor 31 and the memory 32 can be connected via a bus or other means. Figure 3 The example of connecting through bus is taken in the following.

[0040] The memory 32 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 31 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 32, that is, the display screen correction method described in the following method embodiment is implemented.

[0041] The memory 32 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for 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 32 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 32 may optionally include a memory remotely arranged relative to the processor 31, and these remote memories may be connected to the electronic device 30 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 32, and when executed by one or more processors 31, the correction method of the display screen in any of the following method embodiments is executed.

[0042] 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.

[0043] In a third aspect, the present application provides a method for calibrating a display screen. Figure 4 , the correction method includes:

[0044] Step S1: Control each boundary lamp bead in the display screen to display a marking color and each non-boundary lamp bead to display a color to be corrected. The color to be corrected is different from the correction color. The area enclosed by each boundary lamp bead includes the area to be corrected.

[0045] The display screen is an LED display screen. Figure 5 As shown, each boundary lamp bead 12 is a lamp bead located on the boundary of the area N1 to be corrected in the LED display screen 10 , and each non-boundary lamp bead 11 is a lamp bead other than the boundary lamp bead 12 in the LED display screen 10 .

[0046] Electronic devices can output video signals to LED display screens, such as Figure 5 As shown, the video signal is used to instruct each boundary lamp bead 12 in the LED display screen 10 to display the marked color, and each non-boundary lamp bead 11 to display the color to be corrected. Specifically, the video signal is directly output to the LED display screen through a mobile device such as a computer, or a control instruction is output through a sending card or interface in the LED control system to make the LED display screen display accordingly.

[0047] In order to facilitate subsequent rapid positioning, the distinction between the color to be corrected and the correction color should be high. For example, if the color to be corrected is black, the correction color can be white, red, green, etc. Both can be set according to actual needs and are not limited here.

[0048] Step S2: Obtain standard brightness and chromaticity information of the area to be corrected.

[0049] Specifically, the brightness and chromaticity acquisition device can be attached to the area N1 to be corrected of the LED display screen, and the standard brightness and chromaticity information of the area N1 to be corrected can be obtained through the brightness and chromaticity acquisition device. It can be understood that the size of the outer frame N2 of the brightness and chromaticity acquisition device is usually larger than the size of the area N1 to be corrected, and the area enclosed by each boundary lamp bead 12 should be larger than the size of the outer frame N2 of the brightness and chromaticity acquisition device. Among them, the standard brightness and chromaticity information obtained by the brightness and chromaticity acquisition device can be a standard three-stimulus value or a standard three-RGB value.

[0050] Step S3: Acquire image information of the display screen.

[0051] Specifically, the image information can be obtained by photographing the LED display screen using an image acquisition device, such as an industrial camera or a digital camera.

[0052] Step S4: Based on the image information and the marking color, the image information of the area to be corrected is obtained.

[0053] It can be understood that the image information is the image information of the entire LED display screen 10 or a larger area in the LED display screen 10, which includes the area to be corrected N1, and the area to be corrected N1 occupies a smaller area of ​​the entire image information. Therefore, in order to quickly obtain the image information corresponding to the area to be corrected N1, the image information can be identified by performing image recognition on the image information to determine the area corresponding to the boundary lamp beads 12 where the marked color is located, and the area includes the area to be corrected N1, thereby obtaining the image information of the area to be corrected N1. The specific process of image recognition can be referred to the existing technology and will not be described in detail here.

[0054] Step S5: obtaining the corrected brightness and chromaticity information corresponding to each lamp bead to be calibrated in the area to be calibrated according to the standard brightness and chromaticity information and the image information of the area to be calibrated.

[0055] In this way, after determining the image information of the area N1 to be corrected based on the boundary lamp bead 12 where the marked color is located, the brightness and chromaticity information of each lamp bead to be corrected on the area N1 to be corrected can be extracted based on the image information of the area N1 to be corrected, and the standard brightness and chromaticity information can be used to correct each brightness and chromaticity information to obtain the corrected brightness and chromaticity information corresponding to each lamp bead to be corrected.

[0056] Step S6: Calibrate the display screen based on each corrected brightness and chromaticity information.

[0057] 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.

[0058] In this embodiment, by controlling the border lamp beads 12 of the display screen to display the correction color, the image information is subsequently processed to quickly determine the area to be corrected in the image information, thereby facilitating the standard brightness and color information collected by the brightness and color acquisition device, thereby improving the convenience of operation. Moreover, compared with the method of using physical markings, this positioning method can reduce errors, thereby improving accuracy, and does not require additional props, such as glue, and will not cause problems such as glue residue.

[0059] In some of these examples, see Figure 6 Before controlling each boundary lamp bead in the display screen to display the marking color, the calibration method further includes:

[0060] Step S11: Obtain the size of the brightness and chromaticity acquisition device and the dot spacing of the display screen, and obtain the number of lamp beads on a boundary of the area enclosed by each boundary lamp bead based on the size and dot spacing, wherein the dot spacing is the distance between the center points of two adjacent lamp beads on the display screen.

[0061] Among them, see Figure 5 , the size of the brightness and chromaticity acquisition device is the size of the outer frame N2, and the size of the outer frame N2 is the longest diameter of the outer frame N2. For example, if the outer frame N2 is circular, the size of the outer frame N2 is the diameter of the circle, if the outer frame N2 is rectangular, the size of the outer frame N2 is the length of the long side of the rectangle, and if the outer frame N2 is elliptical, the size of the outer frame N2 is the length of the long axis of the ellipse. The size of the outer frame N2 can be obtained from the specification manual of the brightness and chromaticity acquisition device, or it can be measured with a caliper, and then the data is input into the electronic device, so that the electronic device obtains the size of the outer frame of the brightness and chromaticity acquisition device.

[0062] The dot interval of the LED display is directly related to the LED display box. After the electronic device is connected to the control system of the LED display, it can obtain the dot interval by communicating with the control system. If the electronic device cannot obtain it through the control system, it can also be obtained by inputting information.

[0063] Step S12: Determine each boundary lamp bead according to the number of lamp beads.

[0064] After calculating the number of lamp beads on a boundary, the electronic device can determine the coordinate information of each boundary lamp bead based on the coordinate information of the area to be corrected. Subsequently, the coordinate information of each boundary lamp bead can be sent to the LED display screen, so that the LED display screen controls the display mark color of each boundary lamp bead according to the coordinate information of each boundary lamp bead.

[0065] Specifically, Figure 5 As shown, if the area enclosed by the boundary lamp beads 12 is a rectangle, and the outer frame N2 of the brightness and chromaticity acquisition device is a circle, the number of lamp beads L on a boundary of the rectangle is calculated by the following formula:

[0066] L = D / d + 2;

[0067] Where D is the diameter of the circle and d is the point spacing.

[0068] For example, if D is 9 mm and d is 0.09 mm, then L = 12. By determining the number of lamp beads on a boundary through the above formula, the area enclosed by the lamp beads 12 on each boundary can include the area to be calibrated N1.

[0069] In this embodiment, the number of lamp beads on the boundary of the area enclosed by the boundary lamp beads is determined by the outer frame size and point spacing of the brightness and chromaticity acquisition device, and then the coordinate information of each boundary lamp bead is determined based on the number and the coordinate information of the area to be corrected, so as to facilitate the subsequent LED display screen to control the display mark color of each boundary lamp bead.

[0070] In some of these examples, see Figure 7 , step S5 comprises:

[0071] Step S51: Obtaining display information corresponding to each lamp bead to be calibrated according to the image information of the area to be calibrated.

[0072] After obtaining the image information of the area to be calibrated, the bright spot corresponding to each lamp bead to be calibrated can be determined, that is, the pixel point with a certain brightness corresponding to each lamp bead to be calibrated. Figure 8 As shown, it can be determined according to the concentration of bright spots in the image information. For example, the darker pixels at the junction of the lamp points (corresponding to the area of ​​the lamp beads to be calibrated) are identified as dark spots, and the brighter pixels in the lamp points are identified as bright spots. The brightness values ​​for defining dark spots and bright spots can be set according to actual needs and are not limited here.

[0073] After the bright spots corresponding to the lamp beads to be calibrated are determined according to the image information, the pixels corresponding to the lamp beads to be calibrated are obtained, so that the tristimulus values ​​or three RGB values ​​of the bright spots corresponding to the lamp beads to be calibrated can be obtained, that is, the bright spot display information. If the image acquisition device uses an industrial camera, the bright spot display information obtained is the tristimulus value, and if the image acquisition device uses a digital camera, the bright spot display information obtained is the three RGB values.

[0074] 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 accumulated respectively 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.

[0075] Step S52: Obtain each corrected brightness and chromaticity information according to the standard brightness and chromaticity information and each display information.

[0076] After obtaining each display information, it can be accumulated to obtain the accumulated three stimulus values ​​or the accumulated three RGB values. Then, the accumulated three stimulus values ​​can be divided by the total number of lamp beads to be calibrated, or the accumulated three RGB values ​​can be divided by the total number of lamp beads to be calibrated to obtain the weighted average three stimulus values ​​or the weighted average three RGB values, that is, the weighted average display information is obtained.

[0077] Then, the weighted average information is corrected using the standard brightness and chromaticity information to obtain each brightness and chromaticity information. For example, if the weighted average information is a weighted average tristimulus value, a correction coefficient is obtained by dividing the standard tristimulus value by the weighted average tristimulus value, and then the correction coefficient is used to multiply each display information to obtain each corrected brightness and chromaticity information. If the weighted average information is a weighted average three RGB value, a correction conversion matrix is ​​obtained based on the standard tristimulus value and the weighted average three RGB value, and then the correction conversion matrix is ​​used to multiply each display information to obtain each corrected brightness and chromaticity information. Among them, the corrected brightness and chromaticity information includes corrected tristimulus values ​​or corrected three RGB values.

[0078] It can be seen that in the embodiment of the present application, each display information can be corrected by using the standard three stimulus values, thereby reducing the difference between the corrected brightness and chromaticity extracted from the image information and the true brightness and chromaticity, thereby obtaining more accurate brightness and chromaticity information based on the image information, and subsequently correcting the LED display screen based on the corrected brightness and chromaticity information, which can improve the correction accuracy of the LED display screen, and can accurately limit the color temperature and color gamut range of the LED display screen after correction.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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: Control each boundary lamp bead in the display screen to display a marking color, and each non-boundary lamp bead to display a color to be corrected, the color to be corrected is different from the correction color, and the area enclosed by each boundary lamp bead includes the area to be corrected; Acquire standard brightness and chromaticity information of the area to be corrected; Acquiring image information of the display screen; Based on the image information and the marking color, obtaining image information of the area to be corrected; According to the standard brightness and chromaticity information and the image information of the area to be corrected, the corrected brightness and chromaticity information corresponding to each lamp bead to be corrected in the area to be corrected is obtained; The display screen is calibrated based on each of the corrected brightness and chromaticity information.

2. The calibration method according to claim 1, characterized in that: Before each boundary lamp bead in the control display screen displays a marking color, the correction method includes: Obtain the size of the brightness and chromaticity acquisition device and the dot spacing of the display screen, and obtain the number of lamp beads on a boundary of the area enclosed by each of the boundary lamp beads according to the size and the dot spacing, wherein the dot spacing is the distance between the center points of two adjacent lamp beads on the display screen; According to the number of the lamp beads, the boundary lamp beads are determined.

3. The calibration method according to claim 2, characterized in that: The area enclosed by the boundary lamp beads is a rectangle, and the step of obtaining the standard brightness and chromaticity information of the area to be corrected includes: The standard brightness and chromaticity information is acquired through the brightness and chromaticity acquisition device, and the outer frame of the brightness and chromaticity acquisition device is circular.

4. The calibration method according to claim 3, characterized in that: The number of lamp beads L is calculated by the following formula: L = D / d + 2; Wherein, D is the diameter of the circle, and d is the point interval.

5. The calibration method according to any one of claims 2 to 4, characterized in that: The standard brightness and chromaticity information includes standard tristimulus values ​​or standard three RGB values.

6. The calibration method according to any one of claims 2 to 4, characterized in that: The modified brightness and chromaticity information includes modified tristimulus values ​​or modified three RGB values.

7. The calibration method according to any one of claims 2 to 4, characterized in that: According to the standard brightness and chromaticity information and the image information of the area to be corrected, the corrected brightness and chromaticity information corresponding to each lamp bead to be corrected in the area to be corrected is obtained, including: Obtaining display information corresponding to each of the lamp beads to be calibrated according to the image information of the area to be calibrated; The corrected brightness and chromaticity information is obtained according to the standard brightness and chromaticity information and the display information.

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 so that the at least one processor can perform the correction 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 correction method according to any one of claims 1 to 7.

Images