Foldable Display Protective Layer Layout for Impact Resistance
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Solution Overview
Problem
Flexible display devices, particularly the folding portions, are prone to damage from external impacts due to their flexibility, necessitating enhanced impact resistance.
Innovation Solution
A display device with a folding portion featuring protective layers strategically positioned on both sides of the folding portion, between an adhesive layer and an electronic panel, to enhance rigidity and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the folding portion is made flexible to enable folding functionality, then portability and user convenience are improved, but impact resistance deteriorates
Solution Approach 1:
The patent applies local quality by positioning protective layers specifically at the edges of the folding portion where impact damage is most likely to occur. The protective layers are strategically placed only in the edge regions rather than uniformly across the entire display, providing enhanced impact resistance where needed while maintaining flexibility in the folding portion.
Solution Approach 2:
The patent employs composite materials by combining the flexible display material with additional protective layer materials having different mechanical properties. This composite structure allows the folding portion to maintain its flexibility for folding functionality while the protective layers provide enhanced impact resistance through material composition.
2Strength
If protective layers are added to enhance impact resistance, then strength is improved, but device complexity increases
Solution Approach 1:
The protective layers are applied only locally at the edges of the folding portion rather than covering the entire display surface. This localized approach provides impact resistance where it is most needed while minimizing the addition of structural complexity and material usage.
Solution Approach 2:
The protective structure is segmented into distinct protective layers positioned at specific locations (edges of folding portion) rather than a uniform protective shell. This segmentation allows the protective function to be distributed to specific high-risk areas, reducing overall structural complexity.
Data Source
AI summary
A display device includes an electronic panel including a folding portion and a non-folding portion arranged in a first direction, a window disposed on the electronic panel, an adhesive layer disposed between the electronic panel and the window, and a first protective layer disposed between the adhesive layer and the electronic panel. The folding portion includes a first side and a second side opposite to the first side in a second direction intersecting the first direction. The first protective layer is disposed adjacent to the first side of the folding portion.