Rollable Display Housing Structure for Peeling Resistance
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Solution Overview
Problem
Rollable display devices face issues with stress during expansion and folding, which can affect display performance and cause damage, necessitating improved structural designs for reliability.
Innovation Solution
The electronic device incorporates a substrate, a display structure, a protective structure, and a housing connected via adhesive, with recessed accommodating spaces in the protective structure to enhance the connection strength of the housing, reducing the likelihood of peeling during deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the housing is directly attached to the display structure without accommodating spaces, then the manufacturing process is simple, but the connection strength is insufficient and peeling occurs during deformation
Solution Approach 1:
The housing is divided into multiple parts with recessed accommodating spaces that engage with corresponding protrusions on the display structure. This segmentation creates multiple localized connection points rather than a single continuous attachment, significantly improving connection strength while maintaining manufacturing feasibility through modular assembly.
Solution Approach 2:
The recessed accommodating spaces in the housing are designed to nestedly receive and secure the protruding portions of the display structure. This nesting arrangement creates interlocking engagement that prevents peeling during deformation, effectively solving the strength issue without requiring complex external fastening mechanisms.
2Reliability
If the housing structure is simplified without accommodating spaces, then the manufacturing is easier, but the reliability during stretching and deformation deteriorates
Solution Approach 1:
The recessed accommodating spaces are pre-formed in the housing structure before final assembly. This preliminary action ensures that the housing is pre-configured to properly receive and secure the display structure, guaranteeing reliable engagement during subsequent stretching and deformation operations without requiring complex real-time adjustment mechanisms.
Solution Approach 2:
The accommodating spaces are strategically positioned at specific locations where stress concentration occurs during deformation. By concentrating structural reinforcement only at these critical local areas rather than throughout the entire housing, the design achieves high reliability during deformation while maintaining overall manufacturing simplicity.
3Strength
If adhesive is applied without accommodating spaces, then the application process is simple, but the adhesive connection is insufficient under stress
Solution Approach 1:
The connection system transitions from a single-plane adhesive application to a multi-dimensional engagement structure. The recessed accommodating spaces create vertical and lateral engagement dimensions, allowing adhesive to be applied in multiple layers and orientations, significantly enhancing connection strength while keeping the overall structure relatively simple.
Solution Approach 2:
The recessed accommodating spaces act as intermediary structures between the housing and display structure. These spaces provide a controlled interface that enhances adhesive bonding by creating increased surface area, mechanical interlocking, and stress distribution, thereby strengthening the adhesive connection without requiring complex additional components.
Data Source
AI summary
An electronic device including a substrate, an electronic structure, a protective structure, a housing and an adhesive is disclosed. The electronic structure is disposed on the substrate. The protective structure is disposed on the electronic structure. The housing includes a first part disposed on the protective structure and extended along a first direction in a cross-section view, and a second part extended from the first part along a second direction which is different from the first direction in the cross-section view. The adhesive is disposed between the housing and the electronic structure. The housing is connected with the electronic structure through the adhesive.