Detection device for electrostatic protection chip

A technology for electrostatic protection and chip detection, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc. It can solve the problems of difficult identification of positive and negative marks, different pictures, abnormal signals of LCD panels, etc., and achieve the effect of avoiding the flow of defective products

Active Publication Date: 2016-06-15
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it is difficult to distinguish the positive and negative marks of the existing electrostatic protection chip, so it is difficult to separate the abnormal product from the normal product by simply using the human eye. difference, which further makes the product sent to the client appear bad

Method used

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  • Detection device for electrostatic protection chip
  • Detection device for electrostatic protection chip
  • Detection device for electrostatic protection chip

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] like figure 1 as shown, figure 1 It is a functional block diagram of a preferred embodiment of the electrostatic protection chip detection device of the present invention. The ESD protection chip detection device includes a power supply module 100 , an ESD protection module 200 and a detection module 300 .

[0025] The input end of the ESD protection module 200 is connected to the output end of the power supply module 100 , and the input end of the detection module 300 is connected to the output end of the ESD protection module 200 .

[0026] The power supply module 100 is used for providing the voltage detected by the electrostatic protection chip.

[0027...

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Abstract

The invention discloses an electrostatic protection chip detecting device and an electrostatic protection chip detecting method. The device comprises a power supply module, an electrostatic protection module and a detecting module, wherein the input end of the electrostatic protection module is connected with the output end of the power supply module, the input end of the detecting module is connected with the output end of the electrostatic protection module, the power supply module is used for providing voltage for the electrostatic protection chip detection, the electrostatic protection module is used for receiving detecting voltage output by the power supply module, the detecting module is used for detecting the voltage output by the electrostatic protection module, when the voltage output by the electrostatic protection module is detected, the electrostatic protection chip welding error is judged, and in addition, the warning information is generated. The device and the method have the advantages that an electrostatic protection chip detecting module is additionally arranged behind the electrostatic protection module, whether an electrostatic protection chip is correctly welded or not can be perfectly detected, and in addition, the warning information is generated when the electrostatic protection chip is wrongly welded; and the hundred percent of detection of products is realized, and the backward flowing of defective products is avoided.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a detection device and method for an electrostatic protection chip. Background technique [0002] At present, the main driving principle of thin film transistor liquid crystal display is: the system motherboard connects the red / green / blue compressed signal, control signal and power to the connector on the printed circuit board through the wire, so that the liquid crystal display can obtain the required power. ,Signal. The signals transmitted by the system to the printed circuit board are mainly low-voltage differential signals. In order to avoid damage to the driver caused by static electricity during the plugging and unplugging of the connector, it is generally necessary to set up an electrostatic protection circuit for important signals at the connection between the connector and the driver. [0003] However, it is difficult to distinguish the positive and negative marks ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/02
Inventor 黄炳成张小新黄俊杰
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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