Folding Plate Openings for Flexible Display Impact Resistance
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Solution Overview
Problem
Flexible display devices with openings in their support plates have lower impact resistance compared to regions without openings, posing a challenge in maintaining structural integrity during folding and unfolding.
Innovation Solution
The design incorporates a support plate with a folding plate portion that includes a plurality of branch portions between openings, which are widened when the plate is folded, preventing interference between adjacent branch portions and enhancing impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If openings are defined in the support plate to enable easier folding, then the support plate can be more easily folded, but the impact resistance of the region with openings decreases
Solution Approach 1:
The patent applies the dynamics principle by designing openings whose width changes dynamically based on the folding state. When the support plate is folded, the openings narrow, providing higher impact resistance; when unfolded, the openings are wider, enabling easier folding. This dynamic dimensional change allows the same structure to serve both folding ease and impact resistance requirements at different operational states.
Solution Approach 2:
The patent implements parameter changes by varying the width of the openings as a function of the folding angle or structural state. The opening width parameter is not fixed but changes with the folding condition, transitioning between a wide state for easy folding and a narrow state for enhanced impact resistance. This parameter variation resolves the contradiction between ease of folding and impact resistance.
2Ease of operation
If openings are defined in the support plate, then the support plate can be more easily folded, but the structural integrity during folding and unfolding is compromised
Solution Approach 1:
The patent applies dynamics by making the opening width dynamic rather than static. The openings automatically adjust their dimensions based on the folding state, maintaining structural integrity during folding operations. When folded, the narrowed openings prevent structural failure; when unfolded, the wider openings facilitate the folding action. This dynamic adaptation ensures reliability throughout the folding cycle.
Solution Approach 2:
The patent changes the geometric parameter of opening width according to the structural state. By linking the opening width to the folding angle or structural configuration, the design maintains structural integrity during folding while enabling easy folding when needed. This parameter change strategy ensures both ease of operation and reliability are achieved simultaneously.
Data Source
AI summary
A display device includes an electronic panel including a first non-folding region, a folding region, and a second non-folding region arranged in a first direction, a support plate disposed under the electronic panel, and a hinge member that defines biaxial rotational axes that are spaced apart from each other in the first direction and that extend in a second direction crossing the first direction. The electronic panel is folded inward or outward about the biaxial rotational axes, and the biaxial rotational axes are defined over or under the support plate depending on a folding direction of the electronic panel.