Roll-Up Display Module Bracket Structure to Suppress Lower-End Peeling
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Solution Overview
Problem
Display modules with flexible, bendable structures face peeling issues due to degraded adhesion between layers, especially at the lower end, leading to malfunction and failure, and separation from supporting aprons, which affects the stability and functionality of the display apparatus.
Innovation Solution
A display module design that includes a deformable display and apron coupled with a bracket to maintain close contact, featuring a base and pressing coupling portion to secure the display and apron together, and a bracket that surrounds the lower end to prevent peeling, while also spacing the printed circuit boards to prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is made flexible and bendable for roll-up structure, then the adaptability and ease of operation are improved, but the adhesion between layers is degraded causing peeling phenomenon
Solution Approach 1:
The patent applies different material properties to different parts of the display structure. The cover glass is made rigid with high elastic modulus to maintain structural integrity and resist peeling, while the lower portion uses flexible materials for bending capability. This local differentiation of material properties allows the display to achieve both flexibility and reliable adhesion in critical areas.
Solution Approach 2:
The patent employs composite material structures combining rigid cover glass with flexible display layers. The cover glass serves as a rigid protective layer that prevents peeling of underlying flexible layers during bending operations, creating a composite structure that leverages the advantages of both rigid and flexible materials.
2Strength
If the cover glass has great elastic force for structural integrity, then the strength is improved, but the adhesion with other layers is degraded due to repulsion during bending
Solution Approach 1:
The rigid cover glass is strategically positioned at the upper portion of the display where structural integrity is most needed. The lower portion near the bending zone uses more compliant materials, creating a gradient of mechanical properties that maintains strength where needed while allowing adhesion in bending-critical areas.
3Stability of the object's composition
If the display and apron are attached for support and guidance, then the stability is improved, but the adhesion is degraded due to continuous bending causing separation
Solution Approach 1:
The patent divides the attachment structure into multiple segments including the apron, bracket, and pressing coupling portion. This segmentation allows each component to independently accommodate bending stresses while maintaining overall stability, preventing adhesion degradation at any single location.
Solution Approach 2:
The pressing coupling portion acts as an intermediary component between the display and apron. It provides a dedicated mechanical coupling interface that maintains the pressing force necessary for adhesion while accommodating the bending movements, preventing direct stress transmission that would cause separation.
4Ease of operation
If the display is repeatedly bent for roll-up operation, then the ease of operation is improved, but the adhesion between layers is degraded leading to peeling and malfunction
Solution Approach 1:
The patent creates a spatial differentiation where the upper display portion maintains rigid layer adhesion for reliability, while the lower portion near the bending zone uses flexible materials and loose coupling that can accommodate repeated bending without adhesion degradation.
Data Source
AI summary
A display apparatus includes a display with at least a portion of the display being deformable and an apron with at least a portion of the apron being deformable. The apron is coupled to the display, a printed circuit board is electrically connected to the display, and a bracket having the printed circuit board mounted thereon is coupled to the apron to press the display disposed between the apron and the bracket, thereby providing a structure that is more stable to a phenomenon in which a display apparatus of a roll-up structure is peeled off.