Stretchable Display With Protrusions And Movable LEDs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stretchable displays face challenges in achieving high resolution and large area due to the limitations of flexible panels, where the hidden portion expansion results in a thick display, low resolution, and resolution deterioration when stretched, especially on curved surfaces.
Innovation Solution
A stretchable display design featuring a substrate with protrusions, fixed and moving light emitting devices, and connection wirings that allow for increased light emission when elongated, maintaining resolution by adjusting the position and number of light emitting devices based on substrate elongation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible panel with hidden portion is used to create a stretchable display, then the display can be expanded when necessary, but the display becomes thick and resolution deteriorates, especially on curved surfaces
Solution Approach 1:
The display panel is segmented into multiple rigid sub-panels connected by flexible hinges, allowing the display to be expanded into different configurations (flat, angled, or curved) while each individual sub-panel maintains its resolution quality without the need for actual stretching of the display surface
Solution Approach 2:
The display structure incorporates movable hinges that enable dynamic reconfiguration between flat and curved states, allowing the display to adapt its shape while maintaining optimal viewing angles and resolution through mechanical adjustment rather than material deformation
2Area of stationary object
If the flexible panel is stretched to increase display area, then the hidden portion is revealed, but the resolution changes at different positions due to varying elongation
Solution Approach 1:
The display is divided into multiple rigid sub-panels of fixed size and resolution, connected by hinges that allow area expansion through reconfiguration rather than stretching, ensuring uniform resolution across all sub-panels regardless of the overall display configuration
Solution Approach 2:
Multiple identical sub-panels with the same resolution characteristics are used throughout the display, so that when the display is expanded into curved or angled configurations, each sub-panel maintains consistent quality without suffering from varying elongation effects
3Device complexity
If conventional flexible panels are used for stretchable displays, then the structure can be simplified, but the display thickness increases and high resolution cannot be achieved
Solution Approach 1:
The display is segmented into multiple thin rigid sub-panels connected by slim flexible hinges, creating an overall structure that is both simple to manufacture and capable of high resolution, as each sub-panel can be produced with standard high-resolution manufacturing processes without requiring complex stretchable materials
Data Source
AI summary
A stretchable display includes a stretchable substrate including a flat part and a plurality of protrusions protruding above the flat part, a plurality of fixed light emitting devices, each fixed light emitting device being attached to an upper surface of a corresponding protrusion of the plurality of protrusions, a plurality of moving light emitting devices, the moving light emitting devices being positioned among the plurality of protrusions, and a plurality of connection wirings connecting among the plurality of fixed light emitting devices and the plurality of moving light emitting devices.