Four-Curved Display Panel Wrinkle Prevention
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Solution Overview
Problem
The wrinkling phenomenon and film layer peeling issues at the intersection positions of adjacent curved surfaces in traditional display panels with four-curved surfaces designs lead to package failure during bending.
Innovation Solution
A display panel design featuring a central portion with first and second sides, and peripheral portions that extend outward, where the second sides are curved and positioned within specific regions defined by extension lines of adjacent sides, preventing overlap and peeling by ensuring the peripheral portions do not overlap when bending, and the second sides are located within regions defined by extension lines of adjacent sides to avoid overlap with the central portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional contoured design is adopted to realize four-curved surfaces display, then the display can show multiple perspectives, but wrinkling phenomenon occurs at intersection positions of adjacent curved surfaces due to film layers overlapping
Solution Approach 1:
The display panel is divided into a central region and four peripheral regions, with each peripheral region independently contoured to form a curved surface. This segmentation allows each region to be optimized separately, preventing wrinkling at intersection positions while maintaining multi-perspective display capability.
Solution Approach 2:
Different regions of the display panel are designed with different contoured characteristics. The peripheral portions have specific contoured designs that differ from the central region, allowing each area to have optimal properties for its function while avoiding the wrinkling problem at intersections.
2Adaptability or versatility
If traditional contoured design is adopted to realize four-curved surfaces display, then the display can show multiple perspectives, but two stresses from different directions are concentrated at intersection positions, causing film layers to peel off and leading to package failure
Solution Approach 1:
By segmenting the display into central and peripheral regions with distinct contoured designs, the stress concentration at intersection positions is eliminated. Each peripheral region can be independently optimized to distribute stresses more evenly, preventing film layer peeling and maintaining package integrity.
Solution Approach 2:
The peripheral portions are designed with specific local contoured characteristics that differ from the central region. This local optimization allows stresses from different directions to be distributed more effectively at critical intersection positions, preventing package failure while preserving the multi-perspective display function.
3Area of stationary object
If peripheral portions extend outward from central portion with curved second sides, then the display area is increased, but overlap occurs when adjacent edge regions bend, causing wrinkles
Solution Approach 1:
The display panel is segmented into a central region and four separately contoured peripheral regions. Each peripheral region extends outward with its own optimized curved design, allowing the display area to be increased while preventing overlap and wrinkling during bending through independent regional optimization.
Solution Approach 2:
The peripheral portions are designed with specific local contoured characteristics where the second sides are curved with convex directions away from the center. This local design optimization ensures that when the panel bends, the extended display area does not cause overlap or wrinkling at critical positions.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a central portion having first sides and second sides alternately arranged, where each of the first sides extends in a direction away from the central portion to form a peripheral portion. The peripheral portion includes a third side and a fourth side respectively connected to both ends of a corresponding first side and extending to middle of the first side. The second side is located within a region defined by an extension line of a corresponding third side, an extension line of a corresponding fourth side, and two respective extension lines of two corresponding first sides.