Foldable display device

A display device and folding line technology, applied in the direction of identification devices, instruments, etc., can solve the problems of separation, delamination and rupture of film layers, and achieve the effect of avoiding dislocation and separation

Active Publication Date: 2021-03-26
HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of bending or folding, repeated folding will form the maximum bending stress line, however, the maximum stress line may be in the flexible display device Non-parallel or non-linear to the fold line, resulting in separation, delamination or cracking between layers in a flexible substrate

Method used

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Embodiment Construction

[0021] 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.

[0022] As mentioned in the background section, in the existing flexible and foldable display devices, there is usually a problem that the maximum bending stress line does not coincide with the designed folding line, resulting in that the display device does not bend according to the set folding line when it is bent. , causing problems of separation, delamination or cracking of the film layers near the bend region. figure 1 and figure 2 is a structural schematic diagram of an existing foldable display device, ref...

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PUM

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Abstract

The embodiment of the invention discloses a foldable display device. The foldable display device comprises a flexible display module and a supporting main body, the supporting main body of the bendingarea is flexible, a first bending notch is formed in one side, deviating from the flexible display module, of the supporting main body, a plurality of sawtooth-shaped second bending notches are further formed in the side, deviating from the flexible display module, of the first bending notch, one second bending notch extends along the folding line, and the thickness of the supporting main body atthe position of the second bending notch is gradually reduced in the direction parallel to the surface of the flexible display module and towards the folding line along the edge of the foldable display device. According to the embodiment of the invention, the problem that a film layer is easy to misplace and separate during bending due to the fact that an existing bendable display device cannot effectively control the position of the bending stress line can be solved, the bending stress line can be effectively controlled to coincide with the preset folding line, it is ensured that the supporting main body of the bending area is bent according to a preset mode, and misplacement and separation of the film layer are avoided.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a foldable display device. Background technique [0002] Organic Light-Emitting Diodes (Olganic Light-Emitting Diodes, OLED) is a device that can emit light automatically after being energized. It has the advantages of wide viewing angle, high contrast, low energy consumption, etc. The characteristics of bending performance make it one of the best choices for making foldable display devices. [0003] In the existing foldable display devices, the display panel is usually divided into a bending area and a non-bending area. Usually, a rigid structural support is provided in the non-bending area of ​​the display panel, but there is no rigid support in the bending area, and it can be bent at will. , so that the display device can be folded. The foldable flexible display device includes a flexible substrate or film made of a bendable material such as plast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30
CPCG09F9/301Y02E10/549
Inventor 袁世鹏
Owner HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
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