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A mask plate and a flexible display panel

A flexible display and mask technology, which is applied in the direction of photolithography, optics, instruments, etc. on the pattern surface, can solve problems such as broken metal lines, improve display quality, and reduce the risk of broken metal lines Effect

Inactive Publication Date: 2018-12-28
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When filling the organic flexible layer, use a coater to coat the organic flexible layer, then use a photomask to cover the area that needs to be retained, and expose and develop the rest of the area. This method will leave the organic flexible layer around the filling hole, resulting in There is a height difference between the metal traces plated on the organic flexible layer directly above the filled holes and around the filled holes, so that there is a risk of disconnection of the metal traces in the subsequent exposure / etching process

Method used

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  • A mask plate and a flexible display panel
  • A mask plate and a flexible display panel
  • A mask plate and a flexible display panel

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0020] See figure 1 , figure 1 It is a schematic diagram of part of the structure of the bending area of ​​the flexible display panel in the prior art. Such as figure 1 As shown, the bending area is sequentially provided with a polyimide layer 11, a passivation layer 12, a gate insulating layer 13, a capacitor insulating layer 14, and an insulating layer 15. The insulating layer 15 has a three-layer film structure. It is a silicon oxide film, a si...

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Abstract

A mask plate and a flexible display panel are disclosed. The mask plate is provided with a plurality of strip portions spaced apart, and the strip portions are provided with a plurality of through hole spaced apart along the length direction of the strip portions. The area ratio of the through holes per unit area at both ends of the strip portions is smaller than that of the through holes per unitarea in the middle of the strip portions. The metal traces formed by using the mask plate have the same widths at the metal traces at the through-holes formed in the first and second portions havingdifferent heights, thereby reducing the risk of wire breakage of the metal traces and improving the display quality.

Description

Technical field [0001] This application relates to the field of display technology, and in particular to a mask and a flexible display panel. Background technique [0002] With the popularization of full screens, in order to maximize the screen-to-body ratio, it is necessary to use the flexible display feature of AMOLED to bend the area outside the display area to the back area of ​​the panel as much as possible. In this way, the metal traces of the display area need to pass through the bend. The folding area is connected to the circuit in the back area. [0003] At present, the bending area is provided with a filling hole, and a metal trace is provided above the filling hole. The filling hole is filled with an organic flexible layer and the metal trace is punched to relieve stress and prevent the metal trace from breaking. When filling the organic flexible layer, use a coater to coat the organic flexible layer, and then use a mask to cover the area that needs to be retained, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F1/38H01L27/32
CPCG03F1/38H10K59/131
Inventor 陶庆良陈彩琴
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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