Display screen chip processing method, device and medium

Abstract

The embodiment of the present application provides a processing method, device and medium for a chip of a display screen, which relates to the field of display technology and is used to solve the technical problem of poor image quality of existing display screens. The method includes: determining the main wavelength difference and brightness difference between any two adjacent light-emitting elements according to the main wavelength and brightness of each light-emitting element in the initial light-emitting element array of multiple wafer chips; removing unusable light-emitting elements in the initial light-emitting element array, and generating a preset number of available light-emitting element arrays according to the remaining light-emitting elements, wherein the main wavelength difference between any two adjacent light-emitting elements in each available light-emitting element array does not exceed the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; selecting multiple standby light-emitting element groups from the spare light-emitting element library; determining multiple target screens according to the available light-emitting element arrays and the standby light-emitting element groups, wherein the mean wavelength difference between any two of the target screens does not exceed the second wavelength threshold.

Description

Technical Field

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

[0002] In recent years, Micro-LED displays have received widespread attention in the industry due to their advantages such as excellent display effects, high resolution, low power consumption and long life. Micro-LED display technology is also known as the "ultimate display technology."

[0003] In order to obtain better picture quality, Micro-LED display screens need to select Micro-LED tubes with better brightness and chromaticity uniformity to make the screen body during the production process. However, the cost of selecting all Micro-LED tubes with better brightness and chromaticity uniformity to make the screen body is extremely high. In the prior art, in order to reduce the manufacturing cost of the screen body, Micro-LED tubes with poor brightness and chromaticity uniformity are usually randomly mixed to form the screen body, and then the brightness and chromaticity Demura technology is used to process the display screen to eliminate the uneven brightness and chromaticity of the screen, thereby obtaining better picture quality.

[0004] However, brightness and color demura technology usually has its limits. That is, if the brightness and color uniformity exceeds a certain range, demura technology will not be able to eliminate the uneven brightness and color of the screen, resulting in poor picture quality of the screen and affecting the user experience. Summary of the invention

[0005] The present application provides a method, device and medium for processing a chip of a display screen, which are used to solve the technical problem that the existing display screen has poor picture quality while reducing the manufacturing cost.

[0006] In a first aspect, the present application provides a method for processing a chip of a display screen, comprising:

[0007] Obtaining the main wavelength and brightness of each light emitting element in an initial light emitting element array of a plurality of wafer chips;

[0008] Determine, according to the dominant wavelength and brightness of each light-emitting element, the dominant wavelength difference and brightness difference between any two adjacent light-emitting elements in each of the initial light-emitting element arrays;

[0009] Eliminate unusable light-emitting elements in each of the initial light-emitting element arrays, and generate a preset number of usable light-emitting element arrays according to the remaining light-emitting elements and the preset screen specifications of the display screen, wherein the main wavelength difference between any two adjacent light-emitting elements in each of the usable light-emitting element arrays does not exceed the first wavelength threshold, and the brightness difference does not exceed the brightness threshold;

[0010] Selecting a plurality of standby light emitting element groups from a spare light emitting element library, wherein the main wavelength difference between two standby light emitting elements in each of the standby light emitting element groups is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold;

[0011] Determine a preset number of target screens according to the preset number of available light emitting element arrays and the plurality of standby light emitting element groups, wherein the mean wavelength difference between any two adjacent screens in the preset number of target screens does not exceed a second wavelength threshold;

[0012] The first wavelength threshold is the minimum discernible chromaticity difference within the screen that can be discerned by the human eye, the second wavelength threshold is the minimum discernible chromaticity difference between screens that can be discerned by the human eye, and the brightness threshold is the maximum brightness difference that can be processed by the brightness processing device.

[0013] In this embodiment, a certain brightness and chromaticity screening standard is used to screen the initial light-emitting element arrays of multiple wafer chips and the light-emitting elements in the backup light-emitting element library, and light-emitting elements with relatively good brightness and chromaticity uniformity are selected to form a screen body, which effectively ensures the picture quality of the screen body. Specifically, first, the initial light-emitting element arrays of multiple wafer chips can be screened using the first wavelength threshold obtained based on the minimum chromaticity difference within the screen body that can be distinguished by the human eye and the maximum brightness difference that can be processed by the brightness processing device, and unusable light-emitting elements whose main wavelength difference exceeds the first wavelength threshold or whose brightness difference exceeds the brightness threshold are eliminated, so that the chromaticity difference within the screen body obtained according to the available light-emitting element array cannot be distinguished by the human eye, and the brightness difference can be processed by the brightness processing device, thereby ensuring the brightness and chromaticity uniformity within the screen body. Secondly, the light-emitting elements in the standby light-emitting element library are screened according to the first wavelength threshold and the brightness threshold, so that the main wavelength difference between the two standby light-emitting elements in the standby light-emitting element group is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold, ensuring that the chromaticity difference within the screen obtained according to the standby light-emitting element group and the available light-emitting element array cannot be distinguished by the human eye, and the brightness difference can be processed by the brightness processing device, further ensuring the uniformity of brightness and chromaticity within the screen. Finally, using the second wavelength threshold obtained according to the minimum chromaticity difference between screens that can be distinguished by the human eye, multiple screens determined according to multiple standby light-emitting element groups are adjusted to obtain multiple target screens whose mean wavelength difference between any two screens does not exceed the second wavelength threshold, so that the chromaticity difference between the multiple target screens cannot be distinguished by the human eye, ensuring the uniformity of brightness and chromaticity between the screens. Through such a setting, the first wavelength threshold, the brightness threshold and the second wavelength threshold are used to screen the light-emitting elements with poor brightness and chromaticity uniformity, and multiple target screens are obtained, thereby determining the screen corresponding to the display screen. While reducing the manufacturing cost of the screen, the picture quality of the screen is improved, thereby enhancing the user experience.

[0014] In a possible implementation manner, determining a preset number of target screens according to the preset number of available light emitting element arrays and the plurality of standby light emitting element groups specifically includes:

[0015] For each available light emitting element array, determining the number of missing elements according to the difference between the preset number of light emitting elements of the screen in the preset screen specification and the actual number of light emitting elements in the available light emitting element array;

[0016] Randomly select target light emitting elements of the number of missing elements from the plurality of light emitting element groups to be used, and randomly mix the target light emitting elements of the number of missing elements into the available light emitting element array to generate a display screen;

[0017] Generating a screen sequence according to the generated preset number of display screens, and determining the mean wavelength difference between any two adjacent display screens in the screen sequence according to the mean wavelength of each of the display screens;

[0018] Determine whether there is a screen combination in the screen sequence in which the average wavelength difference between two adjacent display screens exceeds the second wavelength threshold;

[0019] If yes, reorder the screen sequence and / or replace the light-emitting elements in the screen combination, so that the average wavelength difference between any two adjacent display screens in the screen sequence does not exceed the second wavelength threshold;

[0020] A preset number of target screens is determined according to the screen sequence.

[0021] In this embodiment, when a preset number of available light-emitting element arrays are generated according to the remaining light-emitting elements and the preset screen specifications of the display screen, the actual number of light-emitting elements in each available light-emitting element array may not just meet the preset screen specifications, and there may be omissions. Therefore, after determining the preset number of available light-emitting element arrays and multiple standby light-emitting element groups that meet the brightness and chromaticity screening criteria, the number of missing elements in each available light-emitting element array can be first determined, and the number of target light-emitting elements with missing elements can be randomly selected from the multiple standby light-emitting element groups and randomly mixed into the available light-emitting element array, thereby generating a preset number of display screens, and obtaining a screen that meets the specifications and has good brightness and chromaticity uniformity. Furthermore, after obtaining the preset number of display screens, the sorting and / or light-emitting elements can be adjusted according to the second wavelength threshold corresponding to the chromaticity difference between the minimum distinguishable screens by the human eye, so that the mean wavelength difference between any two of the preset number of target screens finally obtained does not exceed the second wavelength threshold. Through such a setting, the preset number of display screens is adjusted using the second wavelength threshold value obtained according to the minimum chromaticity difference between screens that can be distinguished by the human eye, so that the chromaticity difference between the preset number of target screens finally obtained cannot be distinguished by the human eye, thereby ensuring the uniformity of brightness and chromaticity between the screens and improving the picture quality of the screens.

[0022] In a possible implementation manner, the first wavelength threshold and the second wavelength threshold are obtained in the following manner:

[0023] Determine a color with the same brightness in RGB and a main wavelength within the range of a first wavelength and a second wavelength, and perform color calibration on the color to obtain a target color;

[0024] Using the target color to simulate the minimum discernible chromaticity difference between screens by human eyes, so as to obtain a plurality of first images;

[0025] Using the target color to simulate the minimum discernible chromaticity difference within the screen by human eyes, so as to obtain a plurality of second images;

[0026] Determine the minimum chromaticity difference between screens that can be distinguished by human eyes by using human factor experiments and the plurality of first images, and determine the second wavelength threshold according to the minimum chromaticity difference between screens that can be distinguished by human eyes;

[0027] The chromaticity difference within the screen that can be discerned by the human eye is determined by using a human factor experiment and the plurality of second images, and the first wavelength threshold is determined according to the chromaticity difference within the screen that can be discerned by the human eye.

[0028] In this embodiment, the color with the same brightness in RGB and the main wavelength within the range of the first wavelength and the second wavelength is determined, and the color calibration is performed on the color, which can eliminate the interference of accidental factors, avoid errors, and improve the accuracy of the first wavelength threshold and the second wavelength threshold determined according to the target color. After obtaining the target color, the target color is used to simulate the chromaticity difference between the minimum distinguishable screens by the human eye, so that the first picture that can characterize the chromaticity between the screens can be obtained simply and accurately. According to the first picture and the human factor experiment, the chromaticity difference between the minimum distinguishable screens by the human eye can be accurately determined, so as to determine the second wavelength threshold, and improve the accuracy and reliability of the second wavelength threshold. Similarly, the target color is used to simulate the chromaticity difference within the minimum distinguishable screen by the human eye, so as to obtain a second picture that can characterize the chromaticity within the screen, and according to the second picture and the human factor experiment, the chromaticity difference within the minimum distinguishable screen by the human eye can be accurately determined, so as to determine the first wavelength threshold, and improve the accuracy and reliability of the first wavelength threshold.

[0029] In a possible implementation manner, simulating the minimum discernible chromaticity difference between screens by human eyes using the target color to obtain a plurality of first images specifically includes:

[0030] Generate a first wavelength difference sequence b1-bn according to the first wavelength difference b1, a preset gradient difference value and a third number n;

[0031] Select a first color and a second color from the target color, and place the first color and the second color in left and right regions of the same picture, respectively, to generate a first picture, wherein the main wavelengths of the first color and the second color differ by a first wavelength difference b1;

[0032] The color selection and picture generation operations are repeated using the first wavelength difference sequence to generate n first pictures.

[0033] In this embodiment, according to the first wavelength difference b1, the preset gradient difference value and the third number n, a first wavelength difference sequence b1-bn including n elements can be simply and accurately generated, and the difference between any two adjacent elements in the sequence is the preset gradient difference value, so that the color selection and image generation operations are repeated according to the first wavelength difference sequence b1-bn to generate n first images. Further, the first color and the second color are placed in the left and right areas of the same image respectively to generate the first image, so that the first image can well represent the chromaticity difference between the screens, so that the minimum chromaticity difference between the screens that can be distinguished by the human eye can be determined according to the multiple first images.

[0034] In a possible implementation manner, the determining the minimum discernible chromaticity difference between screens by human eyes by using a human factor experiment and the plurality of first images specifically includes:

[0035] Obtaining a first target image obtained when a plurality of persons observe the plurality of first images under target observation conditions, wherein two colors of left and right areas in the first target image are the smallest distinguishable by human eyes;

[0036] Determining a first chromaticity difference between two colors in each first target image;

[0037] Determine the minimum discernible chromaticity difference between screens by human eyes according to the average of the first chromaticity differences;

[0038] The target observation condition is that the distance between the person and the first picture is the target distance, and the viewing angle of the person observing the first picture is the target angle.

[0039] In this embodiment, by using the first target images obtained when multiple people observe multiple first images under target observation conditions, the two colors between the minimum distinguishable screens by the human eyes of different people can be simply and accurately obtained, thereby obtaining the chromaticity difference between the minimum distinguishable screens by the human eyes of different people. Further, according to the average of the chromaticity difference between the minimum distinguishable screens by the human eyes of different people, the interference of errors can be fully eliminated, and the accuracy of the chromaticity difference between the minimum distinguishable screens by the human eyes is improved, thereby further improving the image quality effect of the screen body of the display screen obtained by screening.

[0040] In a possible implementation manner, simulating the chromaticity difference within the minimum discernible screen by human eyes using the target color to obtain a plurality of second images specifically includes:

[0041] Generate a second wavelength difference sequence c1-cm according to the second wavelength difference c1, the preset gradient difference value and the fourth number m;

[0042] A third color and a fourth color are selected from the target color, and the third color and the fourth color are randomly mixed in the entire area of ​​the same picture to generate a second picture, wherein the main wavelengths of the third color and the fourth color differ by a second wavelength difference c1;

[0043] The color selection and image generation operations are repeated using the second wavelength difference sequence to generate m second images.

[0044] In this embodiment, according to the second wavelength difference c1, the preset gradient difference value and the fourth number m, a first wavelength difference sequence c1-cm including m elements can be simply and accurately generated, and the difference between any two adjacent elements in the sequence is the preset gradient difference value, so that the color selection and image generation operations are repeated according to the second wavelength difference sequence c1-cm to generate m second images. Further, the third color and the fourth color are randomly mixed in the entire area of ​​the same image to generate a second image, so that the second image can well represent the chromaticity difference in the screen body, so that the minimum chromaticity difference that can be distinguished by the human eye in the screen body can be determined according to multiple second images.

[0045] In a possible implementation manner, the determining the minimum discernible chromaticity difference within the screen by the human eye by using the human factor experiment and the plurality of second images specifically includes:

[0046] Obtaining a second target image obtained when a plurality of persons observe the plurality of second images under target observation conditions, wherein two colors of all regions in the second target image are the minimum distinguishable by human eyes;

[0047] Determining a second chromaticity difference between two colors in each second target image;

[0048] Determine the minimum discernible chromaticity difference within the screen body by human eyes according to the average value of each second chromaticity difference;

[0049] The target observation condition is that the distance between the person and the second picture is the target distance, and the viewing angle of the person observing the second picture is the target angle.

[0050] In this embodiment, by using the second target images obtained when multiple people observe multiple second images under target observation conditions, the two colors in the screen that are the smallest discernible by the human eyes of different people can be simply and accurately obtained, thereby obtaining the chromaticity difference in the screen that is the smallest discernible by the human eyes of different people. Further, according to the average of the chromaticity difference in the screen that is the smallest discernible by the human eyes of different people, the interference of errors can be fully eliminated, and the accuracy of the chromaticity difference in the screen that is the smallest discernible by the human eyes is improved, thereby further improving the image quality effect of the screen body of the display screen obtained by screening.

[0051] In a second aspect, the present application provides an electronic device, including:

[0052] An acquisition module, used for acquiring the main wavelength and brightness of each light emitting element in an initial light emitting element array of a plurality of wafer chips;

[0053] A processing module is used to determine the dominant wavelength difference and brightness difference between any two adjacent light-emitting elements in each of the initial light-emitting element arrays according to the dominant wavelength and brightness of each light-emitting element; remove unusable light-emitting elements in each of the initial light-emitting element arrays, and generate a preset number of available light-emitting element arrays according to the remaining light-emitting elements and the preset screen specifications of the display screen, wherein the dominant wavelength difference between any two adjacent light-emitting elements in each of the available light-emitting element arrays does not exceed a first wavelength threshold, and the brightness difference does not exceed a brightness threshold; select a plurality of standby light-emitting element groups from a spare light-emitting element library, wherein the dominant wavelength difference between two standby light-emitting elements in each of the standby light-emitting element groups is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; determine a preset number of target screens according to the preset number of available light-emitting element arrays and the plurality of standby light-emitting element groups, wherein the mean wavelength difference between any two adjacent screens in the preset number of target screens does not exceed a second wavelength threshold; wherein the first wavelength threshold is the minimum distinguishable chromaticity difference within the screen by the human eye, the second wavelength threshold is the minimum distinguishable chromaticity difference between screens by the human eye, and the brightness threshold is the maximum brightness difference that can be processed by the brightness processing device.

[0054] In a third aspect, the present application provides another electronic device, comprising: a processor, and a memory communicatively connected to the processor;

[0055] The memory stores computer-executable instructions;

[0056] The processor executes the computer-executable instructions stored in the memory to implement the above method.

[0057] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to implement the above-mentioned method when executed by a processor.

[0058] In a fifth aspect, the present application provides a computer program product, including a computer program, which implements the above method when executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0060] Figure 1 It is a schematic diagram of the manufacturing process of a screen body of a certain display screen in the prior art;

[0061] Figure 2 A flowchart of a method for processing a chip of a display screen according to an embodiment of the present application;

[0062] Figure 3 A schematic diagram of screening a light emitting element group to be used according to an embodiment of the present application;

[0063] Figure 4 A schematic diagram of generating a display screen according to an embodiment of the present application;

[0064] Figure 5 A flowchart of a method for processing a chip of a display screen according to another embodiment of the present application;

[0065] Figure 6 A schematic diagram of generating a first image according to an embodiment of the present application;

[0066] Figure 7 A schematic diagram of generating a second image according to an embodiment of the present application;

[0067] Figure 8 A schematic diagram of a human factors experiment process according to an embodiment of the present application;

[0068] Fig. 9 A schematic diagram of a manufacturing process of a display screen body of an embodiment of the present application;

[0069] Fig.10 A schematic diagram of the structure of an electronic device according to an embodiment of the present application;

[0070] Fig.11 This is a schematic structural diagram of an electronic device according to another embodiment of the present application.

[0071] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0072] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0073] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0074] It should also be noted that the processing method, device and medium of the chip of the display screen of the present application can be used in the field of display technology, and can also be used in any field outside the field of display technology, such as the field of data processing, etc. The application field of the processing method, device and medium of the chip of the display screen of the present application is not limited.

[0075] First, the terms involved in this application are explained:

[0076] LED, also known as light-emitting diode, is a commonly used light-emitting device that releases energy through the recombination of electrons and holes to emit light. It is widely used in the field of lighting.

[0077] Micro-LED, also known as mLED or μLED, is composed of an array of micron-sized semiconductor light-emitting units and is an electroluminescent device that converts electrical energy into light energy. Micro LED is a display technology that miniaturizes LED displays to the micron level. It has two major characteristics: one is the use of a two-dimensional Micro LED array with high pixel density; the other is that each pixel can be addressed, controlled and independently driven to emit light.

[0078] Micro-LED is a comprehensive technology that integrates new display technology and light-emitting diode (LED) technology. It has the advantages of self-luminescence, high efficiency, low power consumption, high integration, high stability, and all-weather operation. It is considered to be one of the most promising next-generation new display and light-emitting devices. Micro-LED can be deployed in any existing display application from the smallest to the largest size due to its small size, high flexibility, and easy disassembly and merging. In many cases, it will play a more unique role than liquid crystal display (LCD) and organic light-emitting diode (OLED) display.

[0079] Mura originally refers to uneven brightness, but later expanded to any color and brightness differences on the screen that can be discerned by the human eye.

[0080] Brightness processing equipment, also known as Demura equipment, refers to a device that can sense the optical characteristics of pixels in the screen and compensate for them to make the brightness of the screen uniform.

[0081] In order to obtain better picture quality, Micro-LED display screens need to select Micro-LED tubes with better brightness and chromaticity uniformity to make the screen body during the production process. However, the cost of selecting all Micro-LED tubes with better brightness and chromaticity uniformity to make the screen body is extremely high. In the prior art, in order to reduce the manufacturing cost of the screen body, Micro-LED tubes with poor brightness and chromaticity uniformity are usually randomly mixed to form the screen body, and then the brightness and chromaticity Demura technology is used to process the display screen to eliminate the uneven brightness and chromaticity of the screen, thereby obtaining better picture quality.

[0082] However, brightness and color demura technology usually has its limits. That is, if the brightness and color uniformity exceeds a certain range, demura technology will not be able to eliminate the uneven brightness and color of the screen, resulting in poor picture quality of the screen and affecting the user experience.

[0083] Figure 1 FIG. 1 is a schematic diagram of a manufacturing process of a display screen in the prior art. Figure 1 As shown in the figure, the display manufacturer first randomly mixes Micro-LED tubes with poor brightness and color uniformity to form the screen body. Figure 1 It can be seen that the brightness of the display screen is uneven, and the brightness of the screen after demura treatment is also uneven, and the picture quality of the screen is poor.

[0084] Based on this technical problem, the inventive concept of the present application is to provide a method for processing chips of a display screen that can reduce the manufacturing cost of the screen while improving the picture quality of the screen.

[0085] Specifically, the main wavelength and brightness of each light emitting element in the initial light emitting element arrays of the plurality of wafer chips can be obtained; the main wavelength difference and brightness difference between any two adjacent light emitting elements in each initial light emitting element array are determined according to the main wavelength and brightness of each light emitting element; unusable light emitting elements in each initial light emitting element array are eliminated, and a preset number of available light emitting element arrays are generated according to the remaining light emitting elements and the preset screen specifications of the display screen, wherein the main wavelength difference between any two adjacent light emitting elements in each available light emitting element array does not exceed a first wavelength threshold, and the brightness difference does not exceed a brightness threshold; and the spare light emitting elements are selected from the spare light emitting elements. In the light emitting device library, multiple groups of standby light emitting elements are selected, and the main wavelength difference between the two standby light emitting elements in each standby light emitting element group is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; according to the preset number of available light emitting element arrays and multiple standby light emitting element groups, a preset number of target screens are determined, and the mean wavelength difference between any two adjacent target screens in the preset number of target screens does not exceed the second wavelength threshold; wherein the first wavelength threshold is the minimum distinguishable chromaticity difference within the screen by the human eye, the second wavelength threshold is the minimum distinguishable chromaticity difference between the screens by the human eye, and the brightness threshold is the maximum brightness difference that the brightness processing device can handle. The method of the present application uses a certain brightness and chromaticity screening standard to screen the initial light emitting element arrays of multiple wafer chips and the light emitting elements in the standby light emitting element library, and selects light emitting elements with relatively good brightness and chromaticity uniformity to form the screen, effectively ensuring the picture quality of the screen. Specifically, first, the initial light-emitting element arrays of multiple wafer chips can be screened using the first wavelength threshold obtained based on the minimum chromaticity difference within the screen that can be distinguished by the human eye and the maximum brightness difference that can be processed by the brightness processing device, and unusable light-emitting elements whose main wavelength difference exceeds the first wavelength threshold or whose brightness difference exceeds the brightness threshold are eliminated, so that the chromaticity difference within the screen obtained based on the available light-emitting element array cannot be distinguished by the human eye, and the brightness difference can be processed by the brightness processing device, thereby ensuring the uniformity of brightness and color within the screen. Secondly, the light-emitting elements in the standby light-emitting element library are screened based on the first wavelength threshold and the brightness threshold, so that the main wavelength difference between the two standby light-emitting elements in the standby light-emitting element group is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold, thereby ensuring that the chromaticity difference within the screen obtained based on the standby light-emitting element group and the available light-emitting element array cannot be distinguished by the human eye, and the brightness difference can be processed by the brightness processing device, thereby further ensuring the uniformity of brightness and color within the screen. Finally, by using the second wavelength threshold value obtained according to the minimum distinguishable chromaticity difference between screens by the human eye, multiple screens determined according to the multiple standby light-emitting element groups are adjusted to obtain multiple target screens whose average wavelength difference between any two screens does not exceed the second wavelength threshold value, so that the chromaticity difference between the multiple target screens cannot be distinguished by the human eye, thereby ensuring the uniformity of brightness and chromaticity between the screens.Through such a setting, the first wavelength threshold, the brightness threshold and the second wavelength threshold are used to screen the light-emitting elements with poor brightness and chromaticity uniformity, and multiple target screens are obtained, thereby determining the screen corresponding to the display screen. While reducing the manufacturing cost of the screen, the picture quality of the screen is improved, thereby enhancing the user experience.

[0086] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0087] Embodiment 1

[0088] Figure 2 This is a flow chart of a method for processing a chip of a display screen according to an embodiment of the present application. This embodiment describes the method for processing a chip of the display screen by taking an electronic device involved in display screen manufacturing (hereinafter referred to as electronic device) as the execution subject. Figure 2 As shown, the processing method of the chip of the display screen may include the following steps:

[0089] S101: Obtaining the main wavelength and brightness of each light emitting element in an initial light emitting element array of a plurality of wafer chips.

[0090] In this embodiment, the electronic device involved in display screen manufacturing may be a terminal device such as a computer, and the electronic device may obtain the main wavelength and brightness of each light emitting element in the initial light emitting element array of multiple wafer chips from its own database or the database of the server. After the initial light emitting element array of the wafer chip leaves the factory, the main wavelength and brightness of each light emitting element therein are determined and known.

[0091] In this embodiment, the light emitting element may be a Micro-LED tube, the display screen may be a Micro-LED display screen, the initial light emitting element array may be a Micro-LED array in a wafer chip finally produced by a Micro-LED manufacturer, and the display screen manufacturer may complete the production and manufacturing of the display screen based on the Micro-LED array. The display screen may be used in all electronic devices that require a display screen, such as smart watches, computers, mobile phones, and televisions.

[0092] In this embodiment, the number of wafer chips can be flexibly set by those skilled in the art based on experience and the number of screens, and no limitation is imposed here. For example, a display screen needs to produce 10 screens, and each screen needs to be made of 20 wafer chips. Technicians have found through experience that wafer chips have a loss of about 50% when removing unusable light-emitting elements that do not meet the standards. Therefore, one screen requires approximately 40 wafer chips, and 10 screens require 400 wafer chips.

[0093] S102: Determine the dominant wavelength difference and brightness difference between any two adjacent light emitting elements in each initial light emitting element array according to the dominant wavelength and brightness of each light emitting element.

[0094] In this embodiment, the main wavelength difference may be the difference between the main wavelengths of two adjacent Micro-LED tubes, and the brightness difference may be the difference between the brightness of two adjacent Micro-LED tubes.

[0095] S103: Eliminate unusable light emitting elements in each initial light emitting element array, and generate a preset number of usable light emitting element arrays according to the remaining light emitting elements and the preset screen specifications of the display screen.

[0096] In this embodiment, the main wavelength difference between any two adjacent light emitting elements in the light emitting element array may not exceed the first wavelength threshold, and the brightness difference may not exceed the brightness threshold.

[0097] In this embodiment, the first wavelength threshold c0nm may be the minimum discernible chromaticity difference within the screen by human eyes, and the brightness threshold e% may be the maximum brightness difference that can be processed by the brightness processing device.

[0098] In this embodiment, the method for obtaining the first wavelength threshold is detailed in Embodiment 2.

[0099] In this embodiment, the unusable light-emitting elements may be two adjacent Micro-LED tubes whose main wavelength difference exceeds the first wavelength threshold c0nm, or whose brightness difference exceeds the brightness threshold e%.

[0100] In this embodiment, when removing unusable light-emitting elements in each initial light-emitting element array, two adjacent Micro-LED tubes that do not meet the selection criteria (the main wavelength difference exceeds the first wavelength threshold c0nm, or the brightness difference exceeds the brightness threshold e%) can be completely removed, or one of the two adjacent Micro-LED tubes can be removed. No restrictions are made here, as long as the main wavelength difference between any two adjacent light-emitting elements in the available light-emitting element array does not exceed the first wavelength threshold, and the brightness difference does not exceed the brightness threshold.

[0101] In this embodiment, the preset screen specifications of the display screen may include: the number of screens, the size specifications of the screens (which may be represented by an AA×BB light emitting element array), the preset number of light emitting elements of a single screen, and other information.

[0102] In this embodiment, the preset number may be the number of screens that are desired to be set in the display screen. The specific value may be flexibly set by those skilled in the art, and no limitation is imposed herein.

[0103] In this embodiment, when generating a preset number of available light-emitting element arrays based on the remaining light-emitting elements and the preset screen specifications of the display screen, the number of screens can be first determined as a preset number based on the preset screen specifications of the display screen, and then the remaining light-emitting elements can be split and reassembled to obtain a preset number of available light-emitting element arrays.

[0104] It should be noted that the remaining light emitting elements can be split and reassembled randomly or according to certain rules, and no limitation is imposed here. The number of light emitting elements in each available light emitting element array can be the same or different.

[0105] S104: selecting a plurality of standby light emitting element groups from the spare light emitting element library, wherein the main wavelength difference between two standby light emitting elements in each standby light emitting element group is a first wavelength threshold, and the brightness difference does not exceed the brightness threshold.

[0106] In this embodiment, the spare light-emitting element library may be a database reserved by the display manufacturer, which is composed of data of some Micro-LED tubes with poor brightness and chromaticity uniformity. These Micro-LED tubes with poor brightness and chromaticity uniformity may be the Micro-LED tubes remaining in the previous display manufacturing process, or the spare Micro-LED tubes in the initial light-emitting element array.

[0107] In this embodiment, the dominant wavelength and brightness of each light-emitting element in the spare light-emitting element library are also known, and the dominant wavelength difference and brightness difference between any two adjacent light-emitting elements in the spare light-emitting element library can be determined based on this, thereby selecting multiple stand-by light-emitting element groups whose dominant wavelength difference is the first wavelength threshold and whose brightness difference does not exceed the brightness threshold.

[0108] For example, Figure 3 This is a schematic diagram of screening a group of light-emitting elements to be used according to an embodiment of the present application. Figure 3 As shown, after determining the dominant wavelength difference and brightness difference between any two adjacent light-emitting elements in the standby light-emitting element library, multiple standby light-emitting element groups whose dominant wavelength difference is the first wavelength threshold c0 and whose brightness difference does not exceed the brightness threshold e% can be selected.

[0109] In this embodiment, the main wavelength difference between two standby light emitting elements in the standby light emitting element group is the first wavelength threshold, which ensures that the chromaticity difference between the standby light emitting element group and the available light emitting element array does not exceed the first wavelength threshold and cannot be distinguished by the human eye, and the brightness difference does not exceed the brightness threshold that the brightness processing device can process, further ensuring the brightness and chromaticity uniformity of the screen.

[0110] S105: determining a preset number of target screens according to a preset number of available light emitting element arrays and a plurality of standby light emitting element groups, wherein the average wavelength difference between any two adjacent target screens among the preset number of target screens does not exceed a second wavelength threshold.

[0111] In this embodiment, the second wavelength threshold may be the minimum discernible chromaticity difference between screens by human eyes.

[0112] In this embodiment, the method for obtaining the second wavelength threshold is detailed in Embodiment 2.

[0113] In a possible implementation, determining a preset number of target screens according to a preset number of available light emitting element arrays and a plurality of standby light emitting element groups in the above step S105 may include:

[0114] S1051: For each available light emitting element array, determine the number of missing elements according to the difference between the preset number of light emitting elements of the screen in the preset screen specification and the actual number of light emitting elements in the available light emitting element array.

[0115] S1052: randomly selecting target light emitting elements of the number of missing elements from a plurality of light emitting element groups to be used, and randomly mixing the target light emitting elements of the number of missing elements into an array of available light emitting elements to generate a display screen.

[0116] S1053: Generate a screen sequence according to the generated preset number of display screens, and determine the average wavelength difference between any two adjacent display screens in the screen sequence according to the average wavelength of each display screen.

[0117] S1054: Determine whether there is a screen combination in the screen sequence where the average wavelength difference between two adjacent display screens exceeds a second wavelength threshold.

[0118] S1055: If yes, reorder the screen sequence and / or replace the light-emitting elements in the screen combination, so that the average wavelength difference between any two adjacent display screens in the screen sequence does not exceed the second wavelength threshold.

[0119] S1056: Determine a preset number of target screens according to the screen sequence.

[0120] In this embodiment, the average wavelength of the display screen may be an average value of the main wavelengths of all the light emitting elements constituting the display screen.

[0121] In this embodiment, the preset number of light emitting elements of the screen may be the number of light emitting elements pre-planned for each screen, and each screen should be the same.

[0122] In this embodiment, when generating a screen sequence based on a preset number of display screens, the preset number of display screens can be randomly combined to generate the screen sequence, or the screen sequence can be generated in an ascending order of the mean wavelength of the display screens. Of course, other methods can also be used to generate the screen sequence, and no limitation is made here.

[0123] In this embodiment, if there is a screen combination in which the mean wavelength difference between two adjacent display screens exceeds the second wavelength threshold, the screen sequence can be reordered, or the light-emitting elements in the screen combination can be replaced. The two operations can be performed simultaneously as long as the mean wavelength difference between any two adjacent display screens in the final screen sequence does not exceed the second wavelength threshold.

[0124] It should be noted that when replacing the light-emitting elements in the screen combination, the light-emitting elements of one of the display screens can be replaced, or the light-emitting elements of both display screens can be replaced. The number of replaced light-emitting elements can also be flexibly set by those skilled in the art, as long as the average wavelength difference of the screen combination and between any two adjacent display screens does not exceed the second wavelength threshold.

[0125] For example, Figure 4 This is a schematic diagram of generating a display screen according to an embodiment of the present application. Figure 4 As shown, a plurality of target light-emitting elements can be randomly selected from a plurality of light-emitting element groups to be used, and the plurality of target light-emitting elements can be randomly mixed into an array of available light-emitting elements to generate a plurality of display screens in different combinations.

[0126] In this embodiment, when a preset number of available light-emitting element arrays are generated according to the remaining light-emitting elements and the preset screen specifications of the display screen, the actual number of light-emitting elements in each available light-emitting element array may not just meet the preset screen specifications, and there may be omissions. Therefore, after determining the preset number of available light-emitting element arrays and multiple standby light-emitting element groups that meet the brightness and chromaticity screening criteria, the number of missing elements in each available light-emitting element array can be first determined, and the number of target light-emitting elements with missing elements can be randomly selected from the multiple standby light-emitting element groups and randomly mixed into the available light-emitting element array, thereby generating a preset number of display screens, and obtaining a screen that meets the specifications and has good brightness and chromaticity uniformity. Furthermore, after obtaining the preset number of display screens, the sorting and / or light-emitting elements can be adjusted according to the second wavelength threshold corresponding to the chromaticity difference between the minimum distinguishable screens by the human eye, so that the mean wavelength difference between any two of the preset number of target screens finally obtained does not exceed the second wavelength threshold. Through such a setting, the preset number of display screens is adjusted using the second wavelength threshold value obtained according to the minimum chromaticity difference between screens that can be distinguished by the human eye, so that the chromaticity difference between the preset number of target screens finally obtained cannot be distinguished by the human eye, thereby ensuring the uniformity of brightness and chromaticity between the screens and improving the picture quality of the screens.

[0127] In this embodiment, after the electronic device obtains the screen body corresponding to the display screen through steps S101-S105, it can send the initial light-emitting element array corresponding to each screen body, the stand-by light-emitting element group and the composition of the screen body, that is, the relevant information of a preset number of target screen bodies, to the equipment or staff that manufactures the screen body of the display screen, so that the equipment or staff that manufactures the screen body of the display screen can complete the assembly and manufacture of the screen body according to the above information.

[0128] In this embodiment, a certain brightness and chromaticity screening standard is used to screen the initial light-emitting element arrays of multiple wafer chips and the light-emitting elements in the backup light-emitting element library, and light-emitting elements with relatively good brightness and chromaticity uniformity are selected to form a screen body, which effectively ensures the picture quality of the screen body. Specifically, first, the initial light-emitting element arrays of multiple wafer chips can be screened using the first wavelength threshold obtained based on the minimum chromaticity difference within the screen body that can be distinguished by the human eye and the maximum brightness difference that can be processed by the brightness processing device, and unusable light-emitting elements whose main wavelength difference exceeds the first wavelength threshold or whose brightness difference exceeds the brightness threshold are eliminated, so that the chromaticity difference within the screen body obtained according to the available light-emitting element array cannot be distinguished by the human eye, and the brightness difference can be processed by the brightness processing device, thereby ensuring the brightness and chromaticity uniformity within the screen body. Secondly, the light-emitting elements in the standby light-emitting element library are screened according to the first wavelength threshold and the brightness threshold, so that the main wavelength difference between the two standby light-emitting elements in the standby light-emitting element group is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold, ensuring that the chromaticity difference within the screen obtained according to the standby light-emitting element group and the available light-emitting element array cannot be distinguished by the human eye, and the brightness difference can be processed by the brightness processing device, further ensuring the uniformity of brightness and chromaticity within the screen. Finally, using the second wavelength threshold obtained according to the minimum chromaticity difference between screens that can be distinguished by the human eye, multiple screens determined according to multiple standby light-emitting element groups are adjusted to obtain multiple target screens whose mean wavelength difference between any two screens does not exceed the second wavelength threshold, so that the chromaticity difference between the multiple target screens cannot be distinguished by the human eye, ensuring the uniformity of brightness and chromaticity between the screens. Through such a setting, the first wavelength threshold, the brightness threshold and the second wavelength threshold are used to screen the light-emitting elements with poor brightness and chromaticity uniformity, and multiple target screens are obtained, thereby determining the screen corresponding to the display screen. While reducing the manufacturing cost of the screen, the picture quality of the screen is improved, thereby enhancing the user experience.

[0129] The following is a detailed description of the method for obtaining the first wavelength threshold and the second wavelength threshold in the above-mentioned embodiment 1 with reference to a specific embodiment 2.

[0130] Embodiment 2

[0131] Figure 5 This is a flow chart of a method for processing a chip of a display screen according to another embodiment of the present application. This embodiment describes the method for processing a chip of the display screen by taking an electronic device involved in display screen preparation (hereinafter referred to as electronic device) as the execution subject. Figure 5 As shown, the processing method of the chip of the display screen may include the following steps:

[0132] S201: Determine a color with the same brightness in RGB and a dominant wavelength within a range of a first wavelength and a second wavelength, and perform color calibration on the color to obtain a target color.

[0133] In this embodiment, the same brightness in the above step S201 can adopt the common brightness of the display screen. The specific brightness can be flexibly set by those skilled in the art, and no limitation is made here, as long as the target color is obtained under the same brightness conditions.

[0134] In this embodiment, the wavelength range between the first wavelength and the second wavelength can be flexibly set by those skilled in the art according to needs. The wavelength range between the first wavelength and the second wavelength can be the wavelength range of visible light or the wavelength range of a single light such as green light. No limitation is made here.

[0135] In this embodiment, color calibration may be performed by respectively correcting each color in RGB to its corresponding standard pixel value under the same brightness.

[0136] S202: Using the target color, simulate the minimum discernible chromaticity difference between screens by human eyes to obtain a plurality of first images.

[0137] In a possible implementation, the above step S202 uses the target color to simulate the minimum discernible chromaticity difference between screens by the human eye to obtain a plurality of first images, which may include:

[0138] S2021: Generate a first wavelength difference sequence b1-bn according to the first wavelength difference b1, a preset gradient difference value and a third number n.

[0139] S2022: Select a first color and a second color from the target color, and place the first color and the second color in left and right regions of the same image, respectively, to generate a first image, wherein the main wavelengths of the first color and the second color differ by a first wavelength difference b1.

[0140] S2023: Using the first wavelength difference sequence, repeat the color selection and image generation operations to generate n first images.

[0141] In this embodiment, the specific value of the third number n can be flexibly set by those skilled in the art through experience, and no limitation is imposed herein. bn can be set to the empirical value of the minimum chromaticity difference between screens that can be distinguished by the human eye. The specific value of the first wavelength difference b1 can also be flexibly set by those skilled in the art, for example, the first wavelength difference b1 can be 1nm or 10nm, and no limitation is imposed herein. Similarly, the preset gradient difference value can also be flexibly set by those skilled in the art, for example, the preset gradient difference value can be 1nm or 2nm, and no limitation is imposed herein.

[0142] In this embodiment, the first wavelength difference sequence is used to repeat the color selection and image generation operations to generate n first images. b1 can be used to select two colors with a main wavelength difference of b1, and the first first image is obtained based on this. b2 can be used to select two colors with a main wavelength difference of b2, and the second first image is obtained based on this. And so on, finally bn is used to select two colors with a main wavelength difference of bn, and the nth first image is obtained based on this.

[0143] For example, Figure 6 A schematic diagram of generating a first image according to an embodiment of the present application is shown in FIG. Figure 6 As shown, a first color and a second color with a main wavelength difference of b1 can be selected from the target color, and the first color and the second color can be placed in the left and right areas of the same picture respectively to generate a first picture.

[0144] In this embodiment, according to the first wavelength difference b1, the preset gradient difference value and the third number n, a first wavelength difference sequence b1-bn including n elements can be simply and accurately generated, and the difference between any two adjacent elements in the sequence is the preset gradient difference value, so that the color selection and image generation operations are repeated according to the first wavelength difference sequence b1-bn to generate n first images. Further, the first color and the second color are placed in the left and right areas of the same image respectively to generate the first image, so that the first image can well represent the chromaticity difference between the screens, so that the minimum chromaticity difference between the screens that can be distinguished by the human eye can be determined according to the multiple first images.

[0145] S203: Using the target color, simulate the chromaticity difference within the screen that is minimum resolvable by human eyes to obtain a plurality of second images.

[0146] In a possible implementation, the above step S203 uses the target color to simulate the chromaticity difference in the minimum discernible screen volume of the human eye to obtain multiple second images, specifically including:

[0147] S2031: Generate a second wavelength difference sequence c1-cm according to the second wavelength difference c1, a preset gradient difference value and a fourth number m.

[0148] S2032: Select a third color and a fourth color from the target color, and randomly mix the third color and the fourth color in the entire area of ​​the same picture to generate a second picture, wherein the main wavelengths of the third color and the fourth color differ by a second wavelength difference c1.

[0149] S2033: Using the second wavelength difference sequence, repeat the color selection and image generation operations to generate m second images.

[0150] In this embodiment, the specific value of the fourth number m can be flexibly set by those skilled in the art through experience, and no limitation is imposed here. cm can be set to the empirical value of the minimum discernible chromaticity difference within the screen by the human eye. There is no size relationship between the third number n and the fourth number m. The third number n and the fourth number m can be the same or different, and no limitation is imposed here. Similarly, there is no size relationship between cm and bn. cm and bn can be the same or different, and no limitation is imposed here.

[0151] In this embodiment, the specific value of the second wavelength difference c1 can be flexibly set by those skilled in the art. For example, the second wavelength difference c1 can be 1nm or 10nm, without any limitation. There is no size relationship between the second wavelength difference c1 and the first wavelength difference b1. The second wavelength difference c1 can be the same as or different from the first wavelength difference b1, without any limitation. Similarly, the preset gradient difference value can be flexibly set by those skilled in the art. For example, the preset gradient difference value can be 1nm or 2nm, without any limitation.

[0152] In this embodiment, the second wavelength difference sequence is used to repeat the color selection and image generation operations to generate m second images. c1 can be used to select two colors with a main wavelength difference of c1, and the first second image is obtained based on this. c2 can be used to select two colors with a main wavelength difference of c2, and the second second image is obtained based on this. And so on, finally cm is used to select two colors with a main wavelength difference of cm, and the mth second image is obtained based on this.

[0153] For example, Figure 7 A schematic diagram of generating a second image according to an embodiment of the present application is shown in FIG. Figure 7 As shown, a third color and a fourth color with a main wavelength difference of c1 can be selected from the target color, and the third color and the fourth color can be randomly mixed in the entire area of ​​the same picture to generate a second picture.

[0154] In this embodiment, according to the second wavelength difference c1, the preset gradient difference value and the fourth number m, a first wavelength difference sequence c1-cm including m elements can be simply and accurately generated, and the difference between any two adjacent elements in the sequence is the preset gradient difference value, so that the color selection and image generation operations are repeated according to the second wavelength difference sequence c1-cm to generate m second images. Further, the third color and the fourth color are randomly mixed in the entire area of ​​the same image to generate a second image, so that the second image can well represent the chromaticity difference in the screen body, so that the minimum chromaticity difference that can be distinguished by the human eye in the screen body can be determined according to multiple second images.

[0155] S204: using a human factor experiment and a plurality of first images, determining the minimum chromaticity difference between screens that can be distinguished by the human eye, and determining a second wavelength threshold according to the minimum chromaticity difference between screens that can be distinguished by the human eye.

[0156] In this embodiment, the minimum discernible chromaticity difference b0 between screens by human eyes is the second wavelength threshold.

[0157] In a possible implementation, the step S204 of using human factor experiments and multiple first images to determine the minimum discernible color difference between screens by human eyes may include:

[0158] S2041: Obtain a first target image obtained when multiple persons observe multiple first images under target observation conditions, where the two colors of the left and right areas in the first target image can be the minimum distinguishable by the human eye, and the target observation condition can be that the distance between the person and the first image is the target distance, and the viewing angle of the person observing the first image is the target angle.

[0159] S2042: Determine a first chromaticity difference between two colors in each first target image.

[0160] S2043: Determine the minimum discernible chromaticity difference between screens by human eyes according to the average value of each first chromaticity difference.

[0161] In this embodiment, the number of people who observe the first image in the human factors experiment can be flexibly set by those skilled in the art, and no limitation is imposed herein. The target distance d between the person and the first image can also be flexibly set by those skilled in the art according to requirements, and no limitation is imposed herein, as long as the person can observe the color in the first image. The target angle θ at which the person observes the first image can also be flexibly set by those skilled in the art according to requirements, and no limitation is imposed herein, as long as the person can include the entire first image at the target angle θ.

[0162] In this embodiment, the first target picture obtained when a person observes multiple first pictures under target observation conditions can be that the person observes multiple first pictures in turn under the target observation conditions and selects first-category pictures that can distinguish two colors in the picture and second-category pictures that cannot distinguish two colors in the picture. The one with the smallest chromaticity difference between the two colors in the second-category picture can be used as the first target picture.

[0163] In this embodiment, by using the first target images obtained when multiple people observe multiple first images under target observation conditions, the two colors between the minimum distinguishable screens by the human eyes of different people can be simply and accurately obtained, thereby obtaining the chromaticity difference between the minimum distinguishable screens by the human eyes of different people. Further, according to the average of the chromaticity difference between the minimum distinguishable screens by the human eyes of different people, the interference of errors can be fully eliminated, and the accuracy of the chromaticity difference between the minimum distinguishable screens by the human eyes is improved, thereby further improving the image quality effect of the screen body of the display screen obtained by screening.

[0164] S205: Determine the minimum discernible chromaticity difference within the screen by the human eye by using a human factor experiment and a plurality of second images, and determine a first wavelength threshold according to the minimum discernible chromaticity difference within the screen by the human eye.

[0165] In this embodiment, the minimum discernible chromaticity difference c0 within the screen body by human eyes is the first wavelength threshold.

[0166] In a possible implementation manner, the step S205 above uses a human factor experiment and a plurality of second images to determine the minimum discernible chromaticity difference within the screen by the human eye, specifically including:

[0167] S2051: Obtain a second target image when multiple persons observe multiple second images under target observation conditions, where the two colors of all areas in the second target image can be the minimum distinguishable by the human eye, and the target observation condition is that the distance between the person and the second image can be the target distance, and the viewing angle of the person observing the second image is the target angle.

[0168] S2052: Determine a second chromaticity difference between two colors in each second target picture.

[0169] S2053: Determine the minimum discernible chromaticity difference within the screen body by human eyes according to the average value of each second chromaticity difference.

[0170] In this embodiment, the person who observes the second picture in the human factors experiment may be the same as the person who observes the first picture, or may be different, without any limitation. The target distance between the person and the second picture may be the same as the target distance d between the person and the first picture, and the numerical value of d may be flexibly set by a person skilled in the art according to the needs, without any limitation, as long as the person can observe the color in the second picture. The target angle at which the person observes the second picture may be the same as the target angle θ at which the person observes the first picture, and the numerical value of θ may be flexibly set by a person skilled in the art according to the needs, without any limitation, as long as the person can include the entire second picture at the target angle θ.

[0171] In this embodiment, the second target picture obtained when a person observes multiple second pictures under target observation conditions can be that this person observes multiple second pictures in turn under the target observation conditions and selects first-category pictures that can distinguish two colors in the picture and second-category pictures that cannot distinguish two colors in the picture. The one with the smallest chromaticity difference between the two colors in the second category can be used as the second target picture.

[0172] For example, Figure 8 Schematic diagram of the human factors experiment process of an embodiment of the present application, such as Figure 8 As shown, the observer observes the plurality of pictures at a position where the distance from the picture (the first picture or the second picture) is d and the observation angle is θ.

[0173] In this embodiment, by using the second target images obtained when multiple people observe multiple second images under target observation conditions, the two colors in the screen that are the smallest discernible by the human eyes of different people can be simply and accurately obtained, thereby obtaining the chromaticity difference in the screen that is the smallest discernible by the human eyes of different people. Further, according to the average of the chromaticity difference in the screen that is the smallest discernible by the human eyes of different people, the interference of errors can be fully eliminated, and the accuracy of the chromaticity difference in the screen that is the smallest discernible by the human eyes is improved, thereby further improving the image quality effect of the screen body of the display screen obtained by screening.

[0174] In this embodiment, the color with the same brightness in RGB and the main wavelength within the range of the first wavelength and the second wavelength is determined, and the color calibration is performed on the color, which can eliminate the interference of accidental factors, avoid errors, and improve the accuracy of the first wavelength threshold and the second wavelength threshold determined according to the target color. After obtaining the target color, the target color is used to simulate the chromaticity difference between the minimum distinguishable screens by the human eye, so that the first picture that can characterize the chromaticity between the screens can be obtained simply and accurately. According to the first picture and the human factor experiment, the chromaticity difference between the minimum distinguishable screens by the human eye can be accurately determined, so as to determine the second wavelength threshold, and improve the accuracy and reliability of the second wavelength threshold. Similarly, the target color is used to simulate the chromaticity difference within the minimum distinguishable screen by the human eye, so as to simply and accurately obtain the second picture that can characterize the chromaticity within the screen, and according to the second picture and the human factor experiment, the chromaticity difference within the minimum distinguishable screen by the human eye can be accurately determined, so as to determine the first wavelength threshold, and improve the accuracy and reliability of the first wavelength threshold.

[0175] The processing method of the chip of the display screen of the present application is described below with a specific embodiment.

[0176] Embodiment 3

[0177] In a specific embodiment, the processing process of the chip of a display screen of a certain Micro-LED display screen manufacturer is as follows:

[0178] In the first step, the Micro-LED display manufacturer uploads the data of the initial light-emitting element arrays of multiple wafer chips and each Micro-LED tube in the backup light-emitting element library to a computer.

[0179] In the second step, the computer obtains the main wavelength and brightness of each Micro-LED tube in the initial light-emitting element array of multiple wafer chips, and determines the main wavelength difference and brightness difference between any two adjacent Micro-LED tubes in each initial light-emitting element array.

[0180] In the third step, the computer removes unusable light emitting elements in each initial light emitting element array, and generates M usable light emitting element arrays according to the remaining light emitting elements and the preset screen specifications of the display screen.

[0181] In the fourth step, the computer determines the main wavelength difference and brightness difference between any two adjacent Micro-LED tubes in the spare light-emitting element library, and selects multiple stand-by Micro-LED tube groups whose main wavelength difference is the first wavelength threshold c0nm and whose brightness difference does not exceed the brightness threshold e%.

[0182] In the fifth step, for each available light-emitting element array, the computer determines the number of missing elements N based on the difference between the preset number of light-emitting elements in the screen in the preset screen specifications and the actual number of light-emitting elements in the available light-emitting element array, and randomly selects N target light-emitting elements from multiple stand-by light-emitting element groups, and randomly mixes the N target light-emitting elements into the available light-emitting element array to generate a display screen.

[0183] In the sixth step, the computer generates a screen sequence according to the generated M display screens, and determines the mean wavelength difference between any two adjacent display screens in the screen sequence according to the mean wavelength of each display screen; it is determined whether there is a screen combination in the screen sequence in which the mean wavelength difference between two adjacent display screens exceeds the second wavelength threshold; if so, the screen sequence is reordered, and / or the light-emitting elements in the screen combination are replaced, so that the mean wavelength difference between any two adjacent display screens in the screen sequence does not exceed the second wavelength threshold b0.

[0184] In the seventh step, M target screens are determined according to the screen sequence, and the initial light-emitting element array, the Micro-LED tube group to be used, and the combination method corresponding to each screen are sent to the display manufacturing equipment so that the display manufacturing equipment can complete the manufacturing of the display according to the above information.

[0185] Fig. 9FIG. 1 is a schematic diagram of a manufacturing process of a display screen according to an embodiment of the present application. Fig. 9 As shown, the display screen manufacturer first uses the first to sixth steps of the above steps to screen the Micro-LED tubes with poor brightness and chromaticity uniformity, and obtains Micro-LED tubes with relatively good brightness and chromaticity uniformity and whose brightness and chromaticity differences cannot be distinguished by the human eye, and assembles them into the screen body of the display screen. Fig. 9 It can be seen that the screen brightness of the display is relatively uniform, and the screen brightness is more uniform after Demura treatment, and the picture quality of the screen is better.

[0186] Fig.10 Schematic diagram of the structure of an electronic device according to an embodiment of the present application. Fig.10 As shown, the electronic device includes: an acquisition module 11, which is used to acquire the main wavelength and brightness of each light-emitting element in the initial light-emitting element array of multiple wafer chips; a processing module 12, which is used to determine the main wavelength difference and brightness difference between any two adjacent light-emitting elements in each initial light-emitting element array according to the main wavelength and brightness of each light-emitting element; remove unusable light-emitting elements in each initial light-emitting element array, and generate a preset number of available light-emitting element arrays according to the remaining light-emitting elements and the preset screen specifications of the display screen, wherein the main wavelength difference between any two adjacent light-emitting elements in each available light-emitting element array does not exceed the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; select a plurality of standby light-emitting element groups from the spare light-emitting element library, wherein the main wavelength difference between two standby light-emitting elements in each standby light-emitting element group is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; determine a preset number of target screens according to the preset number of available light-emitting element arrays and the plurality of standby light-emitting element groups, wherein the mean wavelength difference between any two target screens in the preset number of target screens does not exceed the second wavelength threshold. In one implementation manner, the description of the specific functions implemented by the electronic device can refer to steps S101-S105 in the first embodiment and steps S201-S205 in the second embodiment, which will not be described in detail here.

[0187] In a possible implementation, the processing module 12 may also be used for:

[0188] For each available light emitting element array, the number of missing elements is determined according to the difference between the preset number of light emitting elements of the screen in the preset screen specification and the actual number of light emitting elements in the available light emitting element array;

[0189] Randomly selecting target light-emitting elements of the number of missing elements from a plurality of light-emitting element groups to be used, and randomly mixing the target light-emitting elements of the number of missing elements into an array of available light-emitting elements to generate a display screen;

[0190] Generating a screen sequence according to the generated preset number of display screens, and determining the mean wavelength difference between any two adjacent display screens in the screen sequence according to the mean wavelength of each display screen;

[0191] Determine whether there is a screen combination in the screen sequence in which the average wavelength difference between two adjacent display screens exceeds a second wavelength threshold;

[0192] If yes, reorder the screen sequence and / or replace the light-emitting elements in the screen combination so that the average wavelength difference between any two adjacent display screens in the screen sequence does not exceed the second wavelength threshold;

[0193] According to the screen sequence, a preset number of target screens is determined.

[0194] In this embodiment, the description of the specific functions implemented by the processing module 12 can refer to step S105 in the first embodiment, which will not be repeated here.

[0195] In a possible implementation, the processing module 12 may also be used for:

[0196] Determine the color with the same brightness in RGB and the main wavelength within the range of the first wavelength and the second wavelength, and perform color calibration on the color to obtain the target color;

[0197] Using the target color to simulate the minimum discernible chromaticity difference between screens by human eyes, so as to obtain a plurality of first images;

[0198] Using the target color to simulate the minimum discernible chromaticity difference within the screen by human eyes, so as to obtain a plurality of second images;

[0199] Using human factor experiments and multiple first images, determine the minimum chromaticity difference between screens that can be distinguished by human eyes, and determine the second wavelength threshold according to the minimum chromaticity difference between screens that can be distinguished by human eyes;

[0200] The human factor experiment and a plurality of second images are used to determine the minimum chromaticity difference within the screen that can be discerned by the human eye, and the first wavelength threshold is determined according to the minimum chromaticity difference within the screen that can be discerned by the human eye.

[0201] In this embodiment, the description of the specific functions implemented by the processing module 12 can refer to steps S201-S205 in the second embodiment, which will not be repeated here.

[0202] In a possible implementation, the processing module 12 may also be used for:

[0203] Generate a first wavelength difference sequence b1-bn according to the first wavelength difference b1, a preset gradient difference value and a third number n;

[0204] A first color and a second color are selected from the target color, and the first color and the second color are placed in the left and right regions of the same picture, respectively, to generate a first picture, and the main wavelengths of the first color and the second color differ by a first wavelength difference b1;

[0205] The color selection and image generation operations are repeated using the first wavelength difference sequence to generate n first images.

[0206] In this embodiment, the description of the specific functions implemented by the processing module 12 can refer to step S202 in the second embodiment, which will not be repeated here.

[0207] In a possible implementation, the processing module 12 may also be used for:

[0208] Generate a second wavelength difference sequence c1-cm according to the second wavelength difference c1, the preset gradient difference value and the fourth number m;

[0209] A third color and a fourth color are selected from the target color, and the third color and the fourth color are randomly mixed in the entire area of ​​the same picture to generate a second picture, and the main wavelengths of the third color and the fourth color differ by a second wavelength difference c1;

[0210] The color selection and image generation operations are repeated using the second wavelength difference sequence to generate m second images.

[0211] In this embodiment, the description of the specific functions implemented by the processing module 12 can refer to step S203 in the second embodiment, which will not be repeated here.

[0212] In a possible implementation, the processing module 12 may also be used for:

[0213] Obtaining a first target image obtained when multiple persons observe the multiple first images under target observation conditions, wherein the two colors of the left and right areas in the first target image are the smallest distinguishable by human eyes;

[0214] Determining a first chromaticity difference between two colors in each first target image;

[0215] Determine the minimum discernible chromaticity difference between screens by human eyes according to the average of the first chromaticity differences;

[0216] The target observation condition is that the distance between the person and the first image is the target distance, and the viewing angle of the person observing the first image is the target angle.

[0217] In this embodiment, the description of the specific functions implemented by the processing module 12 can refer to step S204 in the second embodiment, which will not be repeated here.

[0218] In a possible implementation, the processing module 12 may also be used for:

[0219] Obtaining second target images obtained when multiple persons observe multiple second images under target observation conditions, wherein two colors of all regions in the second target images are the minimum distinguishable by human eyes;

[0220] Determining a second chromaticity difference between two colors in each second target image;

[0221] Determine the minimum discernible chromaticity difference within the screen body by human eyes according to the average value of each second chromaticity difference;

[0222] The target observation condition is that the distance between the person and the second image is the target distance, and the viewing angle of the person observing the second image is the target angle.

[0223] In this embodiment, the description of the specific functions implemented by the processing module 12 can refer to step S205 in the second embodiment, which will not be repeated here.

[0224] Fig.11 This is a schematic diagram of the structure of an electronic device according to another embodiment of the present application. Fig.11 As shown, the electronic device includes: a processor 101, and a memory 102 that is communicatively connected to the processor 101; the memory 102 stores computer-executable instructions; the processor 101 executes the computer-executable instructions stored in the memory 102 to implement the steps of the processing method of the chip of the display screen in the above-mentioned method embodiments.

[0225] An embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the steps of each method embodiment of the present application.

[0226] An embodiment of the present application further provides a computer program product, including a computer program, which implements the steps of each method embodiment of the present application when executed by a processor.

[0227] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the specification of the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0228] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for processing a chip of a display screen, characterized in that: include: Obtaining the main wavelength and brightness of each light emitting element in an initial light emitting element array of a plurality of wafer chips; Determine, according to the dominant wavelength and brightness of each light-emitting element, the dominant wavelength difference and brightness difference between any two adjacent light-emitting elements in each of the initial light-emitting element arrays; Eliminate unusable light-emitting elements in each of the initial light-emitting element arrays, and generate a preset number of usable light-emitting element arrays according to the remaining light-emitting elements and the preset screen specifications of the display screen, wherein the main wavelength difference between any two adjacent light-emitting elements in each of the usable light-emitting element arrays does not exceed the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; Selecting a plurality of standby light emitting element groups from a spare light emitting element library, wherein the main wavelength difference between two standby light emitting elements in each of the standby light emitting element groups is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; Determine a preset number of target screens according to the preset number of available light emitting element arrays and the plurality of standby light emitting element groups, wherein the mean wavelength difference between any two adjacent screens in the preset number of target screens does not exceed a second wavelength threshold; The first wavelength threshold is the minimum discernible chromaticity difference within the screen that can be discerned by the human eye, the second wavelength threshold is the minimum discernible chromaticity difference between screens that can be discerned by the human eye, and the brightness threshold is the maximum brightness difference that can be processed by the brightness processing device.

2. The method according to claim 1, characterized in that The step of determining a preset number of target screens according to the preset number of available light emitting element arrays and the plurality of standby light emitting element groups specifically includes: For each available light emitting element array, determining the number of missing elements according to the difference between the preset number of light emitting elements of the screen in the preset screen specification and the actual number of light emitting elements in the available light emitting element array; Randomly select target light emitting elements of the number of missing elements from the plurality of light emitting element groups to be used, and randomly mix the target light emitting elements of the number of missing elements into the available light emitting element array to generate a display screen; Generating a screen sequence according to the generated preset number of display screens, and determining the mean wavelength difference between any two adjacent display screens in the screen sequence according to the mean wavelength of each of the display screens; Determine whether there is a screen combination in the screen sequence in which the average wavelength difference between two adjacent display screens exceeds the second wavelength threshold; If yes, reorder the screen sequence and / or replace the light-emitting elements in the screen combination, so that the average wavelength difference between any two adjacent display screens in the screen sequence does not exceed the second wavelength threshold; A preset number of target screens is determined according to the screen sequence.

3. The method according to claim 1 or 2, characterized in that: The first wavelength threshold and the second wavelength threshold are obtained in the following manner: Determine a color with the same brightness in RGB and a main wavelength within the range of a first wavelength and a second wavelength, and perform color calibration on the color to obtain a target color; Using the target color to simulate the minimum discernible chromaticity difference between screens by human eyes, so as to obtain a plurality of first images; Using the target color to simulate the minimum discernible chromaticity difference within the screen by human eyes, so as to obtain a plurality of second images; Determine the minimum chromaticity difference between screens that can be distinguished by human eyes by using human factor experiments and the plurality of first images, and determine the second wavelength threshold according to the minimum chromaticity difference between screens that can be distinguished by human eyes; The chromaticity difference within the screen that can be discerned by the human eye is determined by using a human factor experiment and the plurality of second images, and the first wavelength threshold is determined according to the chromaticity difference within the screen that can be discerned by the human eye.

4. The method according to claim 3, characterized in that The method of simulating the minimum discernible chromaticity difference between screens by human eyes using the target color to obtain a plurality of first images specifically includes: Generate a first wavelength difference sequence b1-bn according to the first wavelength difference b1, a preset gradient difference value and a third number n; Select a first color and a second color from the target color, and place the first color and the second color in left and right regions of the same picture, respectively, to generate a first picture, wherein the main wavelengths of the first color and the second color differ by a first wavelength difference b1; The color selection and picture generation operations are repeated using the first wavelength difference sequence to generate n first pictures.

5. The method according to claim 4, characterized in that The method of using the human factor experiment and the plurality of first images to determine the minimum discernible chromaticity difference between screens by human eyes specifically includes: Obtaining a first target image obtained when a plurality of persons observe the plurality of first images under target observation conditions, wherein two colors of left and right areas in the first target image are the smallest distinguishable by human eyes; Determining a first chromaticity difference between two colors in each first target image; Determine the minimum discernible chromaticity difference between screens by human eyes according to the average of the first chromaticity differences; The target observation condition is that the distance between the person and the first picture is the target distance, and the viewing angle of the person observing the first picture is the target angle.

6. The method according to claim 3, characterized in that The method of simulating the chromaticity difference in the minimum discernible screen by human eyes by using the target color to obtain a plurality of second images specifically includes: Generate a second wavelength difference sequence c1-cm according to the second wavelength difference c1, the preset gradient difference value and the fourth number m; A third color and a fourth color are selected from the target color, and the third color and the fourth color are randomly mixed in the entire area of ​​the same picture to generate a second picture, wherein the main wavelengths of the third color and the fourth color differ by a second wavelength difference c1; The color selection and image generation operations are repeated using the second wavelength difference sequence to generate m second images.

7. The method according to claim 6, characterized in that The method of using the human factor experiment and the plurality of second images to determine the minimum discernible chromaticity difference within the screen by human eyes specifically includes: Obtaining a second target image obtained when a plurality of persons observe the plurality of second images under target observation conditions, wherein two colors of all regions in the second target image are the minimum distinguishable by human eyes; Determining a second chromaticity difference between two colors in each second target image; Determine the minimum discernible chromaticity difference within the screen body by human eyes according to the average value of each second chromaticity difference; The target observation condition is that the distance between the person and the second picture is the target distance, and the viewing angle of the person observing the second picture is the target angle.

8. An electronic device, characterized in that: include: An acquisition module, used for acquiring the main wavelength and brightness of each light emitting element in an initial light emitting element array of a plurality of wafer chips; A processing module, configured to determine a dominant wavelength difference and a brightness difference between any two adjacent light emitting elements in each of the initial light emitting element arrays according to the dominant wavelength and brightness of each light emitting element; Eliminate unusable light-emitting elements in each of the initial light-emitting element arrays, and generate a preset number of usable light-emitting element arrays according to the remaining light-emitting elements and the preset screen specifications of the display screen, wherein the main wavelength difference between any two adjacent light-emitting elements in each of the usable light-emitting element arrays does not exceed the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; A plurality of standby light emitting element groups are selected from a spare light emitting element library, wherein the main wavelength difference between two standby light emitting elements in each of the standby light emitting element groups is the first wavelength threshold, and the brightness difference does not exceed the brightness threshold; a preset number of target screens are determined according to the preset number of available light emitting element arrays and the plurality of standby light emitting element groups, wherein the mean wavelength difference between any two adjacent screens in the preset number of target screens does not exceed a second wavelength threshold; wherein the first wavelength threshold is the minimum distinguishable chromaticity difference within a screen by human eyes, the second wavelength threshold is the minimum distinguishable chromaticity difference between screens by human eyes, and the brightness threshold is the maximum brightness difference that can be processed by a brightness processing device.

9. An electronic device, characterized in that: comprising a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 7 when executed by a processor.

Images