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Flexible substrate, flexible display panel and preparation method thereof

A flexible substrate and flexible display technology, applied in the direction of climate sustainability, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems affecting the service life of the light-emitting material of the organic light-emitting layer 104, and achieve the reduction of water and oxygen Probability of penetration through flexible substrate substrates, increased lifetime, effects of good water and oxygen barrier properties

Active Publication Date: 2019-12-24
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing flexible display panel after cutting, although the water and oxygen barrier layer 102 blocks the penetration of water / oxygen from below the second polyimide layer 101b, the water / oxygen will move along the second polyimide layer 101b close to the original The side penetration of cutting line 12 one ends (as Figure 1B The penetration path shown by the middle arrow 18), and then penetrate into the circuit of the thin film transistor array layer 103, and affect the service life of the light emitting material of the organic light emitting layer 104

Method used

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  • Flexible substrate, flexible display panel and preparation method thereof
  • Flexible substrate, flexible display panel and preparation method thereof
  • Flexible substrate, flexible display panel and preparation method thereof

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The terms "first", "second", "third", etc. (if any) in the description and claims of the present invention and the drawings are used to distinguish similar objects and not necessarily to describe a specific order or sequence . It should be understood that the items so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion. The directional terms mentioned in the present invention, such as: up, down, left, right, front, back, inside, outside, side, etc., are only directions referring to the drawings. The embodiments described below with reference to the drawings and the direc...

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Abstract

The invention discloses a flexible substrate, a flexible display panel and a preparation method thereof. A composite substrate structure composed of a first polyimide layer, a water and oxygen barrierlayer, a protective layer and a second polyimide layer is prepared. The prepared flexible display panel has good water and oxygen barrier properties. The probability of water and oxygen passing through the flexible substrate is greatly reduced. The service life of the flexible display panel is improved. The flexible display panel has good flexibility and is conducive to wide application.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible substrate, a flexible display panel and a preparation method thereof. Background technique [0002] With the development of display technology, the requirements for color and lightness are getting higher and higher. The flexibility of display panels has become the general trend of the development of modern display devices. Flexible displays are gradually entering consumer electronics markets such as mobile devices and televisions. Unlike traditional display technology that uses rigid substrates, flexible displays use flexible substrates, such as flexible resin, flexible metal, ultra-thin glass, and so on. Among them, flexible resin is widely used in the substrate of flexible displays due to its good shape and high surface flatness. However, compared with metal and glass, resin materials are vulnerable to oxygen (O 2 ), water (H 2 O) and other intrusions will affect ...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/56H01L27/32H01L21/77
CPCH01L21/77H01L2021/775H10K59/12H10K77/111H10K50/84Y02E10/549Y02P70/50
Inventor 张福阳
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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