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Flexible display panel and preparation method thereof

A flexible display and panel technology, used in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve problems such as screen scrap, film breakage, and wiring breakage thin-film transistor damage, to avoid wire breakage, The effect of good conductivity and good flexibility

Inactive Publication Date: 2017-08-04
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because there are circuit traces and inorganic insulating films in the Border area at present, these film layers will crack after being bent or bent several times, resulting in broken lines or thin film transistors ( TFT) is destroyed, so the panel will not display
[0003] like figure 1 As shown, in the current design, there are circuit traces and circuit structures in the folding area of ​​the Border (the part inside the frame with a black bold dotted line in the figure is the folding area, about 1-2mm), which is prone to metal and inorganic films. Crack phenomenon, which causes the screen to be scrapped

Method used

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  • Flexible display panel and preparation method thereof
  • Flexible display panel and preparation method thereof
  • Flexible display panel and preparation method thereof

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Embodiment 1

[0037] Such as figure 2 As shown, a flexible display panel provided by the present invention is provided with an adjacent display area 21 and a frame area 24, and the frame area 24 includes a non-folding area 23 and a folding area 22 between the non-folding area 23 and the display area 21 .

[0038] Specific to the layered structure, refer to image 3 , the flexible display panel of the present invention mainly includes:

[0039] The substrate 31, as a preferred embodiment, the material of the substrate 31 in this embodiment may be a PI substrate.

[0040] On the upper surface of the substrate 31, a layer of buffer layer (Buffer) 32 is covered; on the upper surface of the buffer layer 32, the corresponding figure 2 The position of the middle folding area 22 is covered with a graphene layer 33 , and the graphene layer 33 can be used to form circuit traces of the folding area 22 .

[0041] Further, on the upper surface of buffer layer 32 and the upper surface of part of gr...

Embodiment 2

[0047] This embodiment provides a method for preparing a flexible display panel. The flexible display panel is provided with an adjacent display area and a frame area, and the frame area includes a non-folding area and a folding area between the non-folding area and the display area. Such as Figure 2-4 Shown, the preparation method of the present embodiment mainly comprises:

[0048] First, a substrate 31 is provided, and the substrate is preferably a PI substrate.

[0049]Next, the buffer layer 32 is prepared on the upper surface of the substrate 31 by means of plasma enhanced chemical vapor deposition or the like.

[0050] Again, a graphene layer 33 is prepared on the upper surface of the buffer layer 32 corresponding to the folding region 22; the preparation method of the graphene layer 33 includes: chemical vapor deposition method, epitaxial growth method, micromechanical exfoliation method or graphite oxide reduction method, etc. Among them, the specific process of che...

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Abstract

The invention relates to the technical field of display devices, in particular to a flexible display panel and a preparation method thereof. A circuit route made of graphene is placed in a folding region according to the characteristic of the graphene, an organic film is only reserved, a TFT (Thin Film Transistor) circuit structure is moved to a non-folding region, and no Crack is generated after bending due to good conductivity and flexibility of the graphene, so that line breaking is avoided; a no-border flexible display panel can be realized after the bending; and the practical characteristic of the flexible display panel is greatly improved.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a flexible display panel and a preparation method thereof. Background technique [0002] Flexible display has gradually become a hot spot in the market. Because the flexible substrate has the characteristic of being bendable, the left and right border (Border) areas can be bent to realize a truly borderless panel. However, because there are circuit traces and inorganic insulating films in the Border area at present, these film layers will crack after being bent or bent several times, resulting in broken lines or thin film transistors ( TFT) is destroyed, so the panel will not display. [0003] Such as figure 1 As shown, in the current design, there are circuit traces and circuit structures in the folding area of ​​the Border (the part inside the frame with a black bold dotted line in the figure is the folding area, about 1-2mm), which is prone to metal and inorganic fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/12H01L21/77
CPCH01L27/1244H01L27/1259
Inventor 鲁佳浩倪蔚德潘新叶亢澎涛
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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