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Flexible display device and manufacturing method thereof

A flexible display device and flexible display technology, applied in semiconductor devices, electrical components, circuits, etc., can solve problems such as short circuit of metal wires

Inactive Publication Date: 2018-03-23
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides a flexible display device and its manufacturing method to solve the problem of short circuit between metal lines in the bending area in the prior art

Method used

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

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Embodiment Construction

[0036] As mentioned in the background section, in the prior art, photoresist remains between the metal traces due to the slope angle of the bending area, which leads to a short circuit between the metal traces.

[0037] Based on this, the present invention provides a flexible display panel, such as image 3 As shown, according to the state of use of the flexible display panel, it can be divided into a bending area 301 and a non-bending area 302 . From the vertical hierarchical structure of the flexible display panel, it may include: a flexible substrate 1 , an inorganic layer 2 , a first metal wiring 3 , a planarization layer 4 and a second metal wiring 5 .

[0038] Specifically, please combine Figure 4 , Figure 4 A schematic diagram of the specific structure of each layer in a flexible display panel provided in this embodiment, wherein the inorganic layer 2 may include a buffer layer 401, a gate insulating layer 402, a first insulating layer 403, and a source-drain insula...

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Abstract

The present invention provides a flexible display device and a manufacturing method thereof. The flexible display device is characterized by firstly arranging an inorganic layer on a flexible substrate, then arranging a groove on the inorganic layer in a bending area, and filling a planarization layer in the groove. A first metal routing is arranged in a non-bending area, wherein the first metal routing is located between the inorganic layer and the planarization layer, and then a second metal routing is arranged on the planarization layer, and the second metal routing and the first metal routing are connected electrically and are at least located in the bending area. According to the scheme, the second metal routing is used as the metal routing of the bending area, is not located in the groove and does not have a larger slope angle, so that the photoresist residual is not easy to generate, and further the short circuit between the metal routings is not easy to occur.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a flexible display device and a manufacturing method thereof. Background technique [0002] With the rapid development of electronic technology, display devices have been widely used in people's lives, such as mobile phones, computers and tablets. [0003] A current development trend of display screens is narrow bezel design, that is, the bezel area of ​​the display screen is getting smaller and smaller except for the display area. Based on this development trend, flexible OLED panels have been developed rapidly, such as figure 1 As shown, the flexible panel can bend part of the frame area 101 to the back of the display screen, reducing the size of the visible frame area. [0004] Usually, such as figure 2 As shown, since the bending resistance of the inorganic film is relatively poor, it is necessary to etch away the inorganic film 201 in the bent part (ben...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/12H10K59/131
Inventor 林鸿袁永何水冷传利
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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