Electrostatic protector, electrostatic protection system and visual inspection testing method

Abstract

The invention relates to an electrostatic protector, an electrostatic protection system using the electrostatic protector and a visual inspection testing method using the electrostatic protection system. The electrostatic protector comprises a first field effect tube and a second field effect tube, wherein the grid of the first field effect tube is connected with the drain of the first field effect tube and the source of the second field effect tube and is used as the input end of the electrostatic protector; and the grid of the second field effect tube is connected with the drain of the second field effect tube and the source of the first field effect tube and is used as the output end of the electrostatic protector. By combining the electrostatic protection and the visual inspection testing, the invention not only can effectively implement the electrostatic protection, but also can be conducted or cut off by controlling the voltage of the electrostatic protector, thereby implementing the visual inspection testing and reducing the technique complexity.

Description

technical field [0001] The invention relates to an electrostatic protection device, an electrostatic protection system using the electrostatic protection device and a visibility testing method. Background technique [0002] During the production process of liquid crystal display panels, due to some external factors, such as continuous process operations and handling or environmental changes, etc., static charges usually accumulate in the panels. Since glass itself is an insulating substance, unless there is a proper discharge path, static charges will remain on the surface of the substrate. When the electrostatic charge accumulates to a certain amount, a discharge (ESD, Electrostatic Discharge) will occur. The time when electrostatic discharge occurs is very short, and the transfer of a large amount of charges in a short time will generate extremely high current, which will cause the circuit on the thin film field effect transistor (TFT) substrate or the substrate itself to...

AI Technical Summary

Problems solved by technology

[0006] It can be found that, in the existing liquid crystal display screen, on the one hand, the ESD module 06 used for electrostatic protection widely exists between the display area and the display housing, arranged vertically and horizontally, occupying a large area, wasting the screen width, And reduce the production integration; on the other hand, in the visual inspection process, the wires are first extended and then interconnected, and the interconnected wires are disconnected by laser blowing after the test, which increases the complexity of the process and causes production problems. rate drop

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