Stretchable Display Segmentation for Resolution and Reliability
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Solution Overview
Problem
Stretchable display devices face limitations in securing stretching properties and repeated stretching reliability, which restrict the increase in resolution due to the need for sufficient space in the soft portion.
Innovation Solution
A stretchable display device design featuring a display area with first, second, and third rigid portions, and a soft portion between them, where the third rigid portion has a larger area than the first and second, allowing for higher resolution while maintaining flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sufficient space is allocated for the soft portion to ensure stretching properties and reliability, then stretching reliability is improved, but the resolution of the display device is limited
Solution Approach 1:
The display area is divided into multiple rigid portions (first, second, third rigid portions) that are spatially separated and connected through soft portions. This segmentation allows the display to achieve both high resolution within rigid portions and sufficient stretching capability through the soft connecting portions, resolving the contradiction between resolution and stretching reliability.
Solution Approach 2:
The patent introduces a spatial arrangement where rigid portions are positioned at different locations (including diagonal positioning of the third rigid portion) and connected through soft portions. This dimensional arrangement optimizes both the display resolution and the stretching space without compromising either requirement.
2Manufacturing precision
If the area of rigid portions is increased to improve resolution, then resolution is improved, but the space for soft portions is reduced, compromising stretching properties
Solution Approach 1:
By dividing the display into multiple rigid portions rather than one large rigid portion, the patent achieves high resolution across the total display area while distributing the rigid structures throughout the space. The soft portions fill the gaps between these segmented rigid portions, maintaining stretching properties even as total rigid area increases.
Solution Approach 2:
Different regions of the display have different properties: rigid portions provide high-resolution display areas while soft portions provide stretching capability. The third rigid portion with larger area is strategically positioned to optimize both local display quality and overall stretching performance, allowing each region to fulfill its specific function.
3Area of stationary object
If multiple rigid portions are arranged to maximize display area, then display area is increased, but the arrangement complexity increases
Solution Approach 1:
The display is segmented into multiple rigid portions that can be independently optimized for resolution while being connected through soft portions. This segmentation strategy maximizes the total display area by efficiently utilizing space with multiple smaller rigid regions rather than one large rigid region, while the modular nature manages complexity.
Solution Approach 2:
The third rigid portion is designed with a larger area than the first and second rigid portions, creating an asymmetric arrangement that optimizes the display area utilization. This asymmetric design allows for more efficient space packing and maximizes the total display area while maintaining manageable structural complexity.
Data Source
AI summary
A stretchable display device includes a display area including a first display area and a second display area adjacent to each other in a first direction; a plurality of rigid portions in the display area and spaced apart from each other in the first direction and a second direction; and a soft portion between adjacent rigid portions, among the plurality of rigid portions, in the first direction and the second direction, wherein the plurality of rigid portions include first, second, and third rigid portions, wherein the first rigid portion is provided in the first display area, and the second rigid portion is provided in the second display area, and wherein the third rigid portion is disposed between the first rigid portion and the second rigid portion and has a larger area than each of the first and second rigid portions.