Stretchable Display Panel Bridge Segmentation for Signal Reliability
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Solution Overview
Problem
The existing stretchable display panels face issues with stretching and deformation due to wide connection areas caused by numerous signal lines, particularly power lines like VDD and VSS, which impact their tensile and bending performance.
Innovation Solution
The display panel design includes a signal line group with only one power line (either VDD or VSS) on each connection bridge, reducing the number of power lines and thus the width of the connection bridges, and arranging these power lines to form grid structures for improved signal transmission and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple power lines (VDD and VSS) are provided on each connection bridge, then signal transmission reliability is improved, but connection bridge width increases, reducing stretchability and bending performance
Solution Approach 1:
The connection bridges are segmented into different types: first connection bridges carry only the first power line, second connection bridges carry only the second power line, and third connection bridges carry both power lines. This segmentation allows optimization of each bridge type for its specific function, improving overall stretchability while maintaining signal transmission reliability.
Solution Approach 2:
Different connection bridges are assigned different power line configurations based on local requirements. First connection bridges have only the first power line, second connection bridges have only the second power line, and third connection bridges have both. This local differentiation reduces the width of individual bridges, enhancing stretchability and bending performance in critical areas.
2Adaptability or versatility
If the connection area width is reduced to improve stretchability, then bending performance is improved, but the number of signal lines that can be accommodated decreases
Solution Approach 1:
The connection bridges are divided into three types based on the number and configuration of power lines they carry. This segmentation allows the system to accommodate the required number of signal lines while maintaining narrow bridge widths for improved stretchability and bending performance.
Solution Approach 2:
The patent introduces a third dimension of connection bridge configuration by adding third connection bridges that carry both power lines, complementing the first and second connection bridges. This multi-dimensional approach allows flexible accommodation of signal lines while maintaining optimized bridge widths for stretchability.
Data Source
AI summary
The present application discloses a display panel and a display device, including a plurality of pixel islands, a plurality of connection bridges connecting the plurality of pixel islands, and first power lines and second power line arranged on the plurality of connection bridges and conducting the plurality of pixel islands, wherein the plurality of connection bridges include first connection bridges arranged along a first direction, and only the first power line or the second power line is provided on each of the first connection bridges.