Liquid-crystal testing system and method

Abstract

The invention discloses a liquid-crystal testing system and method. The liquid-crystal testing system includes a main control system, a feeding device, a positioning device, a light emitting device, aprobe testing device, a picture capturing device, a first mechanical arm, a second mechanical arm and a third mechanical arm, wherein the feeding device, the positioning device, the light emitting device, the probe testing device, the picture capturing device, the first mechanical arm, the second mechanical arm and the third mechanical arm are connected with the main control system. According tothe liquid-crystal testing system and method, a liquid-crystal box is tested automatically, the positioning device is adopted to automatically align a probe with a tested point, and a positioning judging device is arranged to judge whether or not positioning is qualified, so that positioning is more accurate and reliable, and the problem of liquid-crystal box damage caused by manual alignment anddisplacement is solved; manpower is saved, staff's visual fatigue is eliminated, the testing efficiency is greatly improved, and the problem of insufficient capacity of liquid-crystal box testing is solved; the probe testing device in the liquid-crystal testing system is detachable, therefore, corresponding probes can be replaced according to liquid-crystal boxes of different sizes, and the liquid-crystal testing system and method are very practical.

Description

technical field [0001] The invention relates to the field of liquid crystal display manufacture, in particular to a liquid crystal cell testing system and testing method. Background technique [0002] Liquid crystal display has the characteristics of small size, low power consumption, and no radiation. It has developed rapidly in recent years and occupies a dominant position in the current flat panel display market, covering almost the main electronic products in today's information society, such as mobile phones and LCD TVs. , computer, car display, video camera, digital camera, electronic watch, PAD, etc. The production process of liquid crystal displays usually includes the front-end array, the middle-end box forming and the back-end module process. Among them, the cell-forming process in the middle section is assembled together, the liquid crystal molecules are contained between the two substrates, and the surroundings are sealed with sealing materials, thus forming a l...

AI Technical Summary

Problems solved by technology

[0003] 1. Manually use the probe to align the test points on the liquid crystal cell for testing. It is difficult for the probe to accurately align with the test points on the liquid crystal cell, and it is easy to cause poor alignment. In addition, even if the alignment is accurate, as long as people are not careful If it is touched, the alignment accuracy will be destroyed, resulting in the failure of normal testing;

[0004] 2. The traditional test is to artificially inspect the screen, which is prone to visual fatigue, which leads to an increase in the defect rate;

[0005] 3. The probe test device used in the traditional test cannot be disassembled. To test different types of liquid crystal cells, it is necessary to replace the entire test system, which is a waste of cost;

[0006] 4. The efficiency of manual testing is low, resulting in insufficient production capacity of liquid crystal cell testing

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