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Display panel and display device

A display panel and metal layer technology, applied in the direction of instruments, semiconductor devices, optics, etc., can solve the problems of test function failure, fusing, etc., and achieve the effect of protecting the test area

Active Publication Date: 2020-05-08
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the production process, the frictional contact between the array substrate and the process machine can easily lead to static electricity accumulation. Since the test pad structure contains a large-area metal and non-metal laminated structure, it is more prone to static electricity accumulation and electrostatic discharge (Electrostatic Discharge, ESD), Due to the larger area of ​​the test pad, the ability to resist electrostatic discharge damage is stronger, but the test line connected to it is very thin, so electrostatic discharge is very easy to occur on the test line connected to it, and the instantaneous heat of electrostatic discharge is very high. Sufficient to blow the test leads, thereby disabling the test function

Method used

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  • Display panel and display device
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  • Display panel and display device

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Experimental program
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Embodiment

[0036] Such as figure 1 As shown, the present invention provides a display device, including a display panel. The display panel includes a test area 100 , and the test area 100 includes a main test area 101 and an electrostatic discharge area 102 .

[0037] Such as figure 2 As shown, the test area 100 includes: a first metal layer 1 , a dielectric layer 2 , a second metal layer 3 , a passivation layer 4 and an ITO layer 5 .

[0038] Such as figure 2 As shown, the first metal layer 1 includes several test lines connected to the array substrate of the display panel. The material of the first metal layer 1 is copper Cu or molybdenum Mo.

[0039] Such as figure 2 As shown, the dielectric layer 2 is disposed on the first metal layer 1 . The material of the dielectric layer 2 includes SiO 2 、SiN x one or more of.

[0040] Such as figure 2 As shown, the second metal layer 3 is disposed on the dielectric layer 2 , and the second metal layer 3 is connected to the first me...

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PUM

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Abstract

The invention provides a display panel and a display device. An electrostatic discharge area is arranged in a test area; a through hole is formed in the electrostatic discharge area; the part, adjacent to the main test area, of the electrostatic discharge area is arranged into a comb tooth shape; moreover, the width of the comb teeth is smaller than that of the test line, so that the resistance ofthe electrostatic discharge area is smaller than that of the test line, the static electricity accumulated in the test area is preferentially discharged in the electrostatic discharge area, the static electricity accumulated in the test area is prevented from being discharged on the test line and the main test area, and the test area is effectively protected.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] The display device can convert the data of the computer into various characters, numbers, symbols or intuitive images and display them, and can use keyboard and other input tools to input commands or data into the computer, and add, delete, modify and change the display at any time with the help of the system's hardware and software. content. Display devices are classified into plasma, liquid crystal, light emitting diode, and cathode ray tube according to the display device used. [0003] LCD (English full name: Liquid Crystal Display, liquid crystal display). Liquid crystal display uses liquid crystal material as the basic component, fills the liquid crystal material between two parallel plates, and changes the arrangement of molecules inside the liquid crystal material through voltage to achieve the...

Claims

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Application Information

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IPC IPC(8): G02F1/1362H01L27/02H01L27/12
CPCG02F1/136204G02F1/136286H01L27/0248H01L27/1214G02F1/136254
Inventor 聂晓辉
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD