Liquid crystal display detection system

Abstract

The invention relates to a liquid crystal display detection system which comprises an image collecting device, a light-on jig operating table, an image processing device and a management end server. The image collecting device comprises four cameras, and the four cameras cooperate for collecting images, are used for collecting image information of different areas of a liquid crystal display to be detected and send the collected image information to the image processing device. According to the detection system, the four cameras cooperate for collecting the image information of different areas of the liquid crystal display to be detected, the number of collected pixels of the unit area of the liquid crystal display to be detected is guaranteed, and imaging definition and quality detection accuracy of the liquid crystal display to be detected are improved.

Description

technical field [0001] The patent of the present invention relates to the technical field of liquid crystal screens, in particular to a liquid crystal screen detection system. Background technique [0002] TFT LCD automatic optical inspection AOI (Automated Optical inspection) system is an indispensable and important link in the production of modern TFT LCD screen industry. A liquid crystal screen detection system in the prior art includes: a lighting fixture console, an image acquisition device, an image processing device and a management server. The detection process includes the following steps: the lighting fixture console lights up the liquid crystal screen to be tested, and the image acquisition device (such as an area array CCD camera) collects the image information of the liquid crystal screen and converts it into an electrical signal and sends it to the image processing device. Process the received electrical signal, and judge whether there is a defect in the LCD s...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the image acquisition device uses a camera to collect the image information of the LCD screen. Under the condition that the pixels of a single camera are fixed, as the LCD screen becomes larger and larger, the pixels corresponding to the LCD screen per unit area become more and more large. On the other hand, as the resolution of LCD screens is getting higher and higher, the detection accuracy requirements for LCD screens are also getting higher and higher. The LCD screen detection system in the prior art can no longer meet the requirements of high-resolution LCD screens. Detection accuracy requirements

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