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Display panel and preparation method thereof

A technology for display panels and flexible substrates, used in semiconductor/solid-state device manufacturing, instruments, electrical components, etc.

Pending Publication Date: 2020-08-25
HEFEI VISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the folding or bending process of flexible display screens, it is necessary to ensure that the thin film transistors are not damaged and avoid the problem of reliability degradation caused by film peeling or cracks during bending or bending. It is also necessary to ensure that specific areas remain rigid after folding or curling to support the screen. leveling problem

Method used

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  • Display panel and preparation method thereof
  • Display panel and preparation method thereof
  • Display panel and preparation method thereof

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0021] In the prior art, the display panel includes a stacked flexible substrate, a driving circuit layer, a functional film layer, and a light-emitting layer. In order to meet the needs of consumers, the display panel is required to be used in TVs due to its folding or rolling characteristics. , mobile phones, mobile wearables and other display fields. However, in the process of flexible folding or rolling, it is necessary to ensure that the thin film transistors in the driving circuit layer are not damaged, to p...

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Abstract

The invention discloses a display panel and a preparation method. The display panel comprises a flexible substrate, which is provided with a plurality of first areas and a plurality of second areas, wherein the material of the first areas comprises a cross-linked polymer of a flexible material and a photosensitive curing agent; an array film layer arranged on the flexible substrate and comprisinga thin film transistor, wherein the orthographic projection of the thin film transistor is located in the orthographic projection of the first areas; and the Young's modulus of each first area is greater than the Young's modulus of each second area. According to the invention, the first areas and the second areas which are subjected to cross-linking polymerization are formed on the flexible substrate, and the Young modulus of each first area is larger than that of each second area, so that deformation of the first areas in the bending process can be reduced, the bending radius is increased, the thin film transistor is in a relatively flat state, the problems of damage to the thin film transistor and separation of a film layer are solved, and the reliability of the display panel is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel and a preparation method thereof. Background technique [0002] Now flexible organic light-emitting diode (OLED for short) display screens have been used in display fields such as TVs, mobile phones, and mobile wearables due to their foldable and curly characteristics. However, during the folding or bending process of flexible display screens, it is necessary to ensure that the thin film transistors are not damaged and avoid the problem of reliability degradation caused by film peeling or cracks during bending or bending. It is also necessary to ensure that specific areas remain rigid after folding or curling to support the screen. leveling problem. Contents of the invention [0003] In a first aspect, an embodiment of the present invention provides a display panel, including: a flexible substrate, the flexible substrate has a plurality of first regions and a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/12H01L27/32H01L21/84G09F9/30G09F9/33
CPCH01L27/1218H01L27/1262G09F9/301G09F9/33H10K59/12Y02E10/549
Inventor 张旭阳顾维杰孙丹丹张帅
Owner HEFEI VISIONOX TECH CO LTD
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