Flexible Display Hinge with Push Units for Deformation Control
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Solution Overview
Problem
Flexible display devices face challenges in maintaining the integrity of their folding regions, leading to deformation issues when folded or unfolded, which affects their portability and convenience.
Innovation Solution
A display device configuration that includes a first and second supporting member with openings, push units, and a hinge system, where the push units rotate about individual rotating axes closer to the hinge than the supporting bars, and the inner side surfaces of the supporting members push the push units and supporting bars away from the center when unfolded, maintaining a flat folding region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display device is configured to be folded or curved, then portability and convenience are improved, but deformation of the folding region occurs
Solution Approach 1:
The supporting member is divided into multiple regions: a first region with a first curvature radius, a second region with a second curvature radius, and a third region with a third curvature radius. This segmentation allows different parts of the folding region to have different curvature characteristics, enabling the display device to be folded while suppressing deformation through distributed curvature management.
Solution Approach 2:
Different regions of the supporting member are assigned different curvature radii tailored to their specific functional requirements. The first region has a larger curvature radius for stable folding, the second region has an intermediate curvature radius for transition, and the third region has a smaller curvature radius for compactness. This local quality differentiation optimizes both portability and deformation suppression.
2Ease of operation
If the display device is folded to improve portability, then convenience is enhanced, but the folding region becomes deformed
Solution Approach 1:
The supporting member is designed with dynamic curvature characteristics that adapt during folding and unfolding operations. The multiple regions with different curvature radii allow the structure to dynamically adjust its shape, maintaining folding region integrity while enabling convenient folding operations. The curvature distribution changes optimally during the folding process.
3Stability of the object's composition
If a hinge system with multiple supporting members is used to suppress deformation, then folding region stability is improved, but device complexity increases
Solution Approach 1:
Multiple supporting members with different curvature radii are merged into a single integrated supporting member structure. This combining approach maintains the folding region stability that would require multiple separate components while reducing overall device complexity by eliminating the need for multiple distinct supporting members and their associated connection mechanisms.
Data Source
AI summary
A display device includes: a first supporting member; a second supporting member on the first supporting member and having a plurality of openings therein; a plurality of push units on the first supporting member and in the openings of the second supporting member; a third supporting member on the second supporting member; a display module on the third supporting member, the display module having non-folding regions adjacent each other in a first direction with a folding region therebetween; a hinge connected to the first and second supporting members overlapping the folding region, the hinge being providing a plurality of rotating axes extending in a second direction crossing the first direction; and a plurality of supporting bars connected to the third supporting member, the supporting bars extending in a third direction and being in the openings, the third direction crossing a plane parallel to the first and second directions.