Folding display device

By designing a rotatable third plane portion and a film layer staggered movement in the folding display device, the problems of easy damage to the outer folding display screen and increased thickness of the inner folding display screen are solved, and flexible use of the display screen and cost optimization are achieved.

WO2025200045A1 Publication Date: 2025-10-02WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/086444
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-28
Filing Date
2024-04-07
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

The display screen of existing external folding display devices is easily damaged, and the internal folding display device requires an additional external display screen, which increases thickness and cost.

Method used

A foldable display device is designed. By providing a third flat portion that can rotate 360 ​​degrees on the second flat portion, the third flat portion can be folded both outward and inward, preventing the display screen from being exposed to the outside. At the same time, wrinkles and damage are reduced through the misalignment of the film layer and the design of a protective layer.

Benefits of technology

The display screen can be used as an external screen and can also be stored internally, thus avoiding the problems of damage to the display screen and increase in thickness, and reducing costs.

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Abstract

A folding display device (100), comprising a first flat surface portion (200), a second flat surface portion (300), a third flat surface portion (400), a first bending portion (500) and a second bending portion (600), which are connected to each other, wherein the first bending portion (500) is arranged between the first flat surface portion (200) and the second flat portion (300); the second bending portion (600) is arranged between the second flat surface portion (300) and the third flat surface portion (400); the rotation angle of the first flat surface portion (200) about a first bending centerline (M1N1) ranges from 0 to 180 degrees; and the rotation angle of the third flat surface portion (400) about a second bending centerline (M2N2) ranges from 0 to 360 degrees.
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