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Method for Improving Stripping Efficiency of Peripheral Area of ​​Liquid Crystal Display Panel

A liquid crystal display panel and peripheral area technology, applied in the direction of photosensitive material processing, etc., can solve the problem of increasing the peeling time of the mask 13 area, and achieve the effect of improving peeling efficiency and increasing contact area.

Active Publication Date: 2020-02-11
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the peeling time of the peripheral area 12 is much longer than that of the display area 11 because the area of ​​the mask 13 is too large.

Method used

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  • Method for Improving Stripping Efficiency of Peripheral Area of ​​Liquid Crystal Display Panel
  • Method for Improving Stripping Efficiency of Peripheral Area of ​​Liquid Crystal Display Panel
  • Method for Improving Stripping Efficiency of Peripheral Area of ​​Liquid Crystal Display Panel

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Embodiment Construction

[0021] The specific implementation of the method for improving the stripping efficiency of the peripheral region of the liquid crystal display panel provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] The invention provides a method for improving the stripping efficiency of the peripheral area of ​​a liquid crystal display panel. In this specific embodiment, it specifically relates to a method for improving the stripping efficiency of the peripheral region of the array substrate of the liquid crystal display panel.

[0023] see image 3 As shown, the array substrate of the liquid crystal display panel includes a display area 31 and a peripheral area 32 arranged around the display area 31.

[0024] In the prior art, in the lift-off process, the first step is to form a mask layer: a mask layer is formed on the surface of the display area 31 and the peripheral area 32, because the display area needs to form ...

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Abstract

The invention provides a method for improving lift-off efficiency of a peripheral region of a liquid crystal display panel. The liquid crystal display panel comprises a display region and a peripheral region arranged around the display region; according to the lift-off process, a patterned mask layer is formed in the peripheral region in a step of forming the mask layer in the peripheral region; a transparent electrode layer is deposited on the surface of the patterned mask layer of the peripheral region to form a patterned transparent electrode layer in a step of depositing the transparent electrode layer; and stripper is in contact with the mask layer through the edge of the patterned transparent electrode layer so as to remove the mask layer in a lift-off step. The method has the advantages that the stripper can enter from the edge of the patterned transparent electrode layer to be in contact with the mask layer, so that the contact area between the stripper and the mask layer can be enlarged, the lift-off efficiency of the peripheral region is greatly improved, and the lift-off time of the peripheral region is close to that of the display region consequently.

Description

technical field [0001] The invention relates to the field of liquid crystal display panels, in particular to a method for improving the stripping efficiency of the peripheral area of ​​the liquid crystal display panel. Background technique [0002] 3 mask (3mask) technology is a new LCD technology that greatly reduces the number of masks. It can not only save LCD panel manufacturing costs, but also reduce process time and increase productivity. 3mask technology forms the passivation layer (PV) and the pixel (PXL) with a mask, and uses the lift-off process to realize the patterning of the two layers of materials. [0003] Lift-off process is a material patterning method widely used in semiconductor and OLED technology. Different from the 4mask / 5mask technology using the traditional yellow light process, the lift-off process first forms a mask and patterns it, then forms ITO on the mask, and removes the mask through a stripper. Thin film ITO on the upper layer of the film, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/42
CPCG03F7/42
Inventor 徐洪远
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD