Defect identification method and system for display panel based on machine vision

A display panel defect and display panel technology, applied in the direction of optical testing flaws/defects, etc., can solve problems such as hidden dangers in production quality of enterprises, achieve large development space and market prospects, improve detection efficiency, and the effect of simple and fast algorithms

Inactive Publication Date: 2017-11-28
GUANGDONG UNIV OF TECH
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  • Abstract
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Problems solved by technology

Most quality inspectors will make misjudgments and missed judgments, which will bring great hidden dangers to the production quality of enterprises

Method used

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  • Defect identification method and system for display panel based on machine vision
  • Defect identification method and system for display panel based on machine vision
  • Defect identification method and system for display panel based on machine vision

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] The invention provides a method for identifying defects of a display panel based on machine vision, such as figure 1 shown, including the following steps:

[0039] S101, collecting in real time the image signal of the display panel to be tested on the production line;

[0040] S102. Process the image signal, compare the processed image signal with the standard image signal, and obtain defect information of the display panel to be tested;

[0041] S103...

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Abstract

The invention discloses a defect identification method and system for a display panel based on machine vision. The method comprises the following steps: acquiring image signals of a to-be-detected display panel on a production line in real time; processing the image signals, and comparing the processed image signals with a standard image signal to acquire defect information of the to-be-detected display panel; and according to the defect information, labeling the defect positions of the to-be-detected display panel. The non-contact vision identification method provided by the invention is simple and quick in algorithm and high in stability, the detection efficiency is increased, and the method has a huge development space and market prospect.

Description

technical field [0001] The invention relates to the field of optoelectronics, in particular to a method and system for identifying defects of a display panel based on machine vision. Background technique [0002] The optoelectronic industry is the basic industry and pillar industry of the country, and it is an important factor that determines a country's technological competitiveness. Enterprises in the domestic electronics field are also developing rapidly. As a basic component of liquid crystal displays, liquid crystal panels are in great demand, so the quality inspection work of liquid crystal panels is also huge. Traditional liquid crystal panel defect detection is mainly done manually. Human eyes observe whether there are missing prints or misprints on the surface of the panel. Due to the complex pattern of the panel itself and the wide variety of patterns, it is a great test for manual labor. Most quality inspectors will make misjudgments and missed judgments, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/95
CPCG01N21/95
Inventor 张美杰张平张明杰
Owner GUANGDONG UNIV OF TECH
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