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Static electricity protection circuit, display panel and display device

An electrostatic protection and circuit technology, applied in the direction of static electricity, static indicators, electrical components, etc., can solve the problems of electrostatic protection circuit and CellTest circuit occupation, large wiring space, and high production cost

Active Publication Date: 2016-07-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in the existing display panel design, the electrostatic protection circuit and the CellTest circuit occupy a large wiring space, making the display area of ​​the panel relatively smaller
Moreover, in the prior art, in order to cut off the area where the Shortingbar is set in the display panel, special laser cutting equipment needs to be equipped, and the production cost is relatively high.

Method used

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  • Static electricity protection circuit, display panel and display device
  • Static electricity protection circuit, display panel and display device
  • Static electricity protection circuit, display panel and display device

Examples

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Embodiment Construction

[0044] The specific implementation manners of an electrostatic protection circuit, a display panel and a display device provided by preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] An electrostatic protection circuit provided by an embodiment of the present invention, such as figure 1 As shown, it includes: a first discharge control module 1, a discharge module 2, a first signal terminal S1, a second signal terminal S2 and a test control signal terminal test; wherein,

[0046] The input terminal of the first discharge control module 1 is respectively connected to the first signal terminal S1 and the first terminal of the discharge module 2, and the output terminal of the first discharge control module 1 is respectively connected to the control terminal of the discharge module 2 and the test control signal terminal test , the second end of the discharge module 2 is connected to the second sign...

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PUM

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Abstract

The invention discloses a static electricity protection circuit, a display panel and a display device. When the amount of static electricity on a signal line on the display panel reaches a certain degree, the static electricity can be timely released through a second signal end of the static electricity protection circuit, so that a static electricity damage to the panel is avoided; when the display panel needs to be subjected to Cell Test, a required signal for the test is input into a first signal end by the second signal end through controlling a test control signal end, so that the function of the Cell Test can be achieved. Compared with an existing display panel in which the static electricity protection circuit is designed and a Shorting bar is also designed, the display panel disclosed by the invention has the advantages that the functions of static electricity protection and Cell Test can be achieved only by one circuit, so that the wiring space can be reduced; and the step of removing a Shorting bar region in the prior art is also omitted.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an electrostatic protection circuit, a display panel and a display device. Background technique [0002] The preparation of the display panel includes an array substrate process, a color filter substrate process, and a cell alignment process between the array substrate and the color filter substrate. Generally, a panel function test (CellTest) is performed during the Cell process. The defective products in the three processes of Array, CF and Cell are detected by CellTest, and the defective products are removed. At present, the commonly used method of CellTest is to set Shortingbar in the peripheral area of ​​the display panel, and connect all the scanning lines and signal lines in the display area of ​​the display panel to the Shortingbar respectively, and then conduct R / G / B / W picture testing through the Shortingbar. Once the test is completed, the area where the Shortingbar i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05F3/04G09G3/20
CPCG09G3/20G09G2330/04H05F3/04
Inventor 李蒙李永谦
Owner BOE TECH GRP CO LTD
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