Flexible Display Support Member with Segmented Plates and Variable Spacers
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Solution Overview
Problem
Existing display devices face challenges in achieving durability and strain resistance while allowing diverse folding and sliding operations, which are essential for flexible and portable designs.
Innovation Solution
A display device design incorporating a support member with alternating main and sub spacers of different lengths, along with carbon or glass reinforcement fibers, and cushion layers to enhance durability and strain resistance during folding and sliding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display device is designed to be foldable and bendable, then portability and user convenience are improved, but durability and strain resistance deteriorate
Solution Approach 1:
The support member is divided into multiple plates (first plate, second plate, third plate) spaced apart from each other, rather than using a single continuous support structure. This segmentation allows each plate to independently manage stress during folding operations, preventing crack propagation and improving overall durability while maintaining flexibility
Solution Approach 2:
The support member incorporates carbon reinforcement fiber or glass reinforcement fiber within the plate structures. These composite materials provide enhanced tensile strength and strain resistance, enabling the display device to withstand repeated folding and bending cycles without compromising structural integrity
2Reliability
If a support structure is made more robust to improve durability, then strain resistance is improved, but device complexity increases
Solution Approach 1:
The support member is divided into multiple plates (first plate, second plate, third plate) spaced apart from each other, rather than using a single continuous support structure. This segmentation allows each plate to independently manage stress during folding operations, preventing crack propagation and improving overall durability while maintaining flexibility
Solution Approach 2:
Different regions of the display device receive different levels of support: the first support member with multiple plates provides enhanced support in areas requiring durability, while the second support member with fewer plates provides support in areas requiring flexibility. This localized differentiation optimizes the balance between durability and complexity
Data Source
AI summary
Provided is a display device including a display module including a curvature area configured to be folded about an axis substantially parallel to a first direction, a first flat area, and a second flat area spaced from the first flat area in a second direction crossing the first direction with the curvature area therebetween, and a support member below the display module, and including a first plate, a second plate below the first plate, and a first spacer pattern between the first plate and the second plate, and including main spacers and sub spacers, the main spacers being longer than the sub spacers.