Flexible Substrate Support Layout for Foldable Deformation Control
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Solution Overview
Problem
Electronic devices with foldable or rollable functions are prone to deformation due to internal or external stress, which can cause damage to their components.
Innovation Solution
The electronic device incorporates a flexible substrate with a circuit structure and strategically arranged supporting elements to mitigate deformation by managing stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device is made thin to achieve foldable or rollable functions, then the adaptability is improved, but the device becomes more susceptible to deformation under stress
Solution Approach 1:
The supporting elements are divided into multiple groups (first group with first distance, second group with second distance) positioned at different locations. This segmentation allows different regions to provide tailored support, with closer spacing near the circuit board region for enhanced stability where needed, and wider spacing in other areas to maintain flexibility and achieve the desired thin profile.
Solution Approach 2:
The supporting elements are strategically positioned with varying distances from the circuit board region and from each other. The first group of supporting elements is positioned closer to the circuit board region with a smaller first distance between them, providing localized reinforcement where structural integrity is most critical, while the second group is positioned farther away with a larger second distance, allowing greater flexibility in other regions.
2Stability of the object's composition
If supporting elements are added to prevent deformation, then the stability is improved, but the device complexity increases
Solution Approach 1:
The supporting elements are arranged in an asymmetric pattern relative to the circuit board region. The first group of supporting elements is positioned at a smaller distance from the circuit board region compared to the second group, creating an asymmetric distribution that optimizes structural support where needed while maintaining overall device simplicity and avoiding unnecessary complexity in regions where less support is required.
Data Source
AI summary
An electronic device including a substrate, a circuit structure, two adjacent supporting elements and another two adjacent supporting elements is provided. The flexible substrate has a first surface and comprises a region connected with a circuit board. The circuit structure is disposed on the first surface. The two adjacent supporting elements are disposed on the first surface and separated by a first distance. The another two adjacent supporting elements are disposed on the first surface and separated by a second distance, wherein the two adjacent support elements are farther away from the region than the another two adjacent support elements, and the first distance is less than the second distance.