Display screen quality detection method, terminal and storage medium

A quality inspection method and technology of display screens, which are applied in the direction of testing optical properties, etc., can solve the problem that the shipment of display screens cannot form an effective objective shipment standard, and achieve the effect of improving the quality of shipments

Pending Publication Date: 2021-08-20
UNILUMIN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a quality inspection method, terminal and storage medium for display screens, which aims to solve the problem that in the prior art, mainly relying on the subjective viewing experience of quality inspectors to detect shipments of display screens cannot form effective objective shipments. Standard Dilemma Technical Issues

Method used

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  • Display screen quality detection method, terminal and storage medium
  • Display screen quality detection method, terminal and storage medium
  • Display screen quality detection method, terminal and storage medium

Examples

Experimental program
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Embodiment 1

[0025] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for detecting the quality of a display screen, the method comprising the following steps:

[0026] Step S110: Adjust the display screen to be detected to a grayscale scanning mode.

[0027] Specifically, the display defect due to cross-board coupling mainly refers to the fact that the gray scale of an LED display composed of several lamp boards is discontinuous or uneven due to reasons such as the number of scans or scanning ICs when displaying gray scales. Defects in display effects. Therefore, in order to realize the corresponding display defect detection in the quality inspection method of the display screen according to the embodiment of the present invention, it is first necessary to adjust the display screen to be inspected to the grayscale scanning mode, so as to perform the corresponding display defect detection operation subsequently.

[0028] Step S120: Perform N times of data...

Embodiment 2

[0054] Such as Figure 7As shown, Embodiment 2 of the present invention proposes a terminal 20, the terminal 20 includes a display screen 21, a memory 22, a processor 23, a program stored in the memory 22 and operable on the processor 23, and a program for implementing the processor 23 and the data bus 24 for connection and communication between the memory 22 and the display screen 21 respectively, when the program is executed by the processor, to realize the steps of the quality detection method of the display screen in the first embodiment above, specifically as described above, here I won't repeat them here.

[0055] It should be noted that the embodiment of the terminal 20 in the embodiment of the present invention belongs to the same idea as the method embodiment 1 or the method embodiment 2, and its specific implementation process is detailed in the method embodiment 1, and the technical features in the method embodiment 1 are in the terminal 20 embodiments are correspo...

Embodiment 3

[0057] Embodiment 3 of the present invention proposes a storage medium for computer-readable storage. The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the above-mentioned embodiments. The invention relates to specific steps of a quality detection method for a display screen.

[0058] It should be noted that the above-mentioned storage medium and the method embodiment 1 belong to the same concept, and the specific implementation process is detailed in the method embodiment 1, and the technical features in the method embodiment 1 are correspondingly applicable in the storage medium embodiment, and are not repeated here. repeat.

[0059] The quality inspection method, terminal, and storage medium of the display screen in the embodiment of the present invention, when each display screen is tested before shipment, the display screen to be tested is first adjusted to the grayscale scanning mode, and t...

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Abstract

The invention discloses a display screen quality detection method, a terminal and a storage medium. The method comprises steps of carrying out the N times of data collection of pixel points at a module splicing part of a display screen in a gray scale scanning mode, building a corresponding data set, and obtaining N groups of data units comprising time vectors; performing feature extraction on each group of data units in sequence to obtain N brightness feature values and N color gamut coordinate feature values; sequentially calculating deviation degrees between each brightness characteristic value and each color gamut coordinate characteristic value and a corresponding standard characteristic value, and calculating to obtain a total deviation degree corresponding to each group of data units by combining respective preset weight coefficients so as to obtain N cross-board coupling characteristic values; and comparing the N cross-board coupling characteristic values with a shipment standard value one by one, and judging whether the display screen meets the shipment requirement or not according to a comparison result. The method is advantaged in that a technical problem that in the prior art, an effective objective shipment standard cannot be formed by detecting shipment of the display screen through subjective watching experience of quality inspectors can be solved.

Description

technical field [0001] The invention relates to the technical field of display screen detection, in particular to a display screen quality detection method, a terminal and a storage medium. Background technique [0002] Since there are many lamp beads in the small-pitch products of the display screen, if the module is relatively large, a row of lamp beads needs to use multiple line pipes to control power supply, or the box body spliced ​​​​by the modules, the line pipes of the module are segmented When the lamp bead display at the physical splicing point and the two modules is from the darkest to the brightest, there will be a very obvious dividing line of brightness at the line pipe division or the physical splicing point, that is, the grayscale display across the board is not smooth, This phenomenon is called cross-board coupling phenomenon. At present, the delivery inspection of the display effect of the LED display mainly relies on experienced quality inspection personn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 陈伟正
Owner UNILUMIN GRP
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