Flexible Display Panel Corner Splicing for Wrinkle-Free Curved Edges
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Solution Overview
Problem
Conventional display panels fail to achieve a four-sided curved display design due to 'wrinkle phenomena' at intersecting bending lines, leading to encapsulation failures and loss of functionality.
Innovation Solution
A flexible display panel design with a corner splicing section featuring an opening hole filled with a light guide material, which allows normal light emission and reduces bending stresses, thereby preventing wrinkles and enhancing the display effect on four-sided curved surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If four-sided curved display is performed using conventional display panel with bending lines, then curved edge display design is achieved, but wrinkle phenomena occur at intersected positions of bending lines causing encapsulation failure and loss of functionality
Solution Approach 1:
The display panel is divided into distinct regions: a first bending line region, a second bending line region, and a corner splicing section. The corner splicing section acts as an independent segment that bridges the two bending lines, allowing each region to be optimized separately for curvature and stress management, preventing wrinkle formation at intersection points
Solution Approach 2:
The corner splicing section serves as an intermediary element between the first and second bending lines. It mediates the stress distribution and curvature transition at the critical intersection area, preventing the wrinkle phenomena that would otherwise occur where bending lines intersect, thereby maintaining encapsulation integrity while enabling curved display
2Shape
If corner splicing section is designed to connect first and second bending lines, then four-sided curved display is enabled, but light emission is blocked at the splicing section
Solution Approach 1:
The light guide layer is extended into the corner splicing section along the thickness direction of the display panel, utilizing the Z-dimension (vertical dimension) to provide light transmission path. This dimensional extension allows light to pass through the corner splicing section via the light guide material, enabling light emission at the corner while maintaining the curved display shape
Solution Approach 2:
The light guide material in the corner splicing section acts as an intermediary for light transmission. It mediates between the light-emitting diodes in the curved display areas and the display surface at the corner, enabling light to be transmitted through the splicing section to achieve uniform light emission across the entire curved display including the corner regions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables a four-sided curved display with improved light emission and reduced bezel width, achieving a full-screen effect while maintaining functionality and aesthetics.
Implementation Method 1
the opening hole passes through the corner splicing section along a direction away from the planar section and is filled with a splicing element formed by a light guide material
Data Source
AI summary
A flexible display panel and a display device are disclosed. An opening hole is defined in a corner splicing section of the flexible display panel and is filled with a splicing element formed by filling a light guide material, and a light guide layer is disposed on one side of a display surface of the flexible display panel at a same time. Therefore, the flexible display panel and the display device of the present disclosure can prevent wrinkle phenomena and realize normal light emission in the corner splicing section.