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Flexible display device and manufacturing method thereof

A flexible display and device technology, applied in the direction of instruments, nonlinear optics, identification devices, etc., can solve problems that affect the stability of service life, easy to form cracks, film shedding, etc., achieve excellent flexible display effect, increase bending resistance, The effect of reducing the radius of curvature

Active Publication Date: 2020-10-16
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

There are still many inorganic layers in the traditional LTPS structure. The difference in film stress between the inorganic layers will cause the film to fall off and the substrate to warp, thereby affecting the service life and stability. Cracks are easy to form after bending, and then damage the device structure

Method used

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  • Flexible display device and manufacturing method thereof
  • Flexible display device and manufacturing method thereof
  • Flexible display device and manufacturing method thereof

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Embodiment Construction

[0016] The specific implementation of the flexible display device provided by the present invention and the preparation method for improving the film stress in the flexible display device will be described in detail below with reference to the accompanying drawings.

[0017] In the prior art, there are many inorganic layers in the LTPS structure, and the difference in film stress between the inorganic layers will cause the film to fall off and the substrate to warp, thereby affecting the service life and stability. At the same time, the thick organic layer Cracks are easy to form after countless times of bending, thereby destroying the device structure.

[0018] Therefore, the present invention proposes that introducing an isolation layer into the original structure can reduce the film stress. Further, the present invention provides a flexible display device, which includes a flexible plastic substrate 110, on which a first gate insulating layer 150, a second gate insulating l...

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Abstract

The invention discloses a flexible display device and a manufacturing method thereof. The manufacturing method introduces a first metallic column so as to improve the anti-bending performance of the display device, and has a first organic column and a second organic column so as to reduce film releasing due to a stress difference between inorganic films, and can improve the stability of the flexible display device and the yield of the flexible display device at the same time.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display panels, in particular to a flexible display device and a preparation method thereof. Background technique [0002] Flexible display devices have the advantages of lightness, thinness, flexibility, impact resistance, ultra-high waterproof performance, etc., and have a very wide range of applications in the field of wearable devices and some special function displays. At present, in the technology of preparing flexible devices, the main method is to assemble a flexible substrate on a carrier such as a rigid glass substrate, then prepare a display element on the flexible substrate, and finally separate the flexible substrate from the carrier to obtain a flexible device. In the manufacturing process of flexible devices, mainstream flexible display devices adopt LTPS (low temperature poly-silion low temperature polysilicon) technology. There are still many inorganic layers in the tradit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1339G02F1/1333G09F9/30
CPCG02F1/133305G02F1/13394G09F9/301G02F1/13396G02F1/13398
Inventor 白思航
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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