Stretchable Display Panel Structure for Pixel Island Deformation Control
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Solution Overview
Problem
Existing stretchable display panels suffer from structural defects that cause twisting deformation in the wiring region, leading to reduced reliability and poor display effects due to deformation in the island-shaped light-emitting regions.
Innovation Solution
A display panel design featuring pixel islands connected by a stretchable connection bridge with a protection unit around each island, generating resistance against stretching deformation, ensuring structural integrity and maintaining good deformability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If curved wire/line is designed in the wiring region to improve deformation capability, then the stretchable recoverability is improved, but the twisting deformation in the wiring region causes twisting deformation in the pixel island, reducing pixel reliability and display quality
Solution Approach 1:
The patent divides the structure into distinct functional zones: pixel islands for display, connection bridges for wiring, and protection units for mechanical support. This segmentation allows each component to perform its specific function independently, preventing twisting deformation from propagating from the wiring region to the pixel island.
Solution Approach 2:
The protection unit acts as an intermediary structure between the connection bridge and the pixel island. It provides mechanical support and isolation, preventing twisting forces transmitted through the connection bridge from directly affecting the pixel island, thus maintaining pixel reliability while preserving deformation capability.
2Strength
If the protection unit is disposed close to the pixel island to maximize protection, then the anti-deformation capability is improved, but the structural complexity and potential interference with signal transmission increase
Solution Approach 1:
The protection unit is strategically positioned at specific locations around the pixel island rather than uniformly covering the entire structure. This localized approach provides targeted mechanical support where needed most, while minimizing unnecessary structural elements and potential interference with signal transmission paths.
Solution Approach 2:
The protection unit extends slightly beyond the minimum required boundary around the pixel island, providing a small margin of additional protection. This partial excessive action ensures adequate protection against deformation while avoiding over-engineering and maintaining structural simplicity.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes multiple pixel islands, where each pixel island includes at least one sub-pixel; a connection bridge, stretchably connected between adjacent two of the pixel islands; and a protection unit, disposed around a corresponding one of the pixel islands and spaced apart from the corresponding one of the pixel islands, configured to generate a resistance to prevent stretching deformation when the display panel is stretched. The connection bridge includes: a first connection portion, connected to the corresponding one of the pixel islands and the protection unit; and a second connection portion, connected to two adjacent protection units. The protection unit is conductive.