Display Panel Bending Structure for Ultra-Narrow Bezel Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies face challenges in achieving a narrow frame with a bending radius smaller than 0.2 mm, leading to increased stress, folds, and cracks, and there is no effective solution to reduce the bending radius without compromising the structural integrity and reliability of the display panel.
Innovation Solution
The display panel design includes a bending region with a maximum angle less than 180°, a support layer at the backlight side, and a flexible support structure with rigid and flexible portions to manage stress and facilitate bending, allowing a bending radius of 0.1 mm without increasing film thickness or stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the bending radius is reduced to achieve a narrow frame, then the frame width is reduced, but the risk of folds and cracks increases significantly
Solution Approach 1:
The display panel is divided into distinct functional regions: a display region, a bending region with optimized geometry, and a binding region. The bending region is segmented with specific dimensional constraints (maximum bending angle less than 180°, distance between bending start point and apex less than bending radius) to distribute stress and prevent folds and cracks while achieving narrow frame width.
Solution Approach 2:
Different regions of the display panel are designed with different structural characteristics. The bending region has specific local properties (maximum bending angle less than 180°, optimized curvature radius) that differ from the display and binding regions. This local optimization allows the bending region to accommodate tight curvature without compromising the overall structural integrity and reliability.
2Length of moving object
If the bending angle is reduced to less than 180°, then the bending radius can be reduced for narrow frame, but the structural complexity increases
Solution Approach 1:
The bending region is designed with a maximum bending angle less than 180°, changing the dimensional characteristics of the bend from a semi-circular arc to a sharper angle. This dimensional change allows the bending region to fit within tighter space constraints while maintaining structural integrity through optimized geometry rather than increasing complexity.
Data Source
AI summary
The present disclosure provides a display panel, comprising a display region, a binding region, and a bending region located between the display region and the binding region. A maximum bending angle of the bending region is less than 180°. The bending region includes a bending start point close to the display region, a distance between the bending start point and an apex of the bending region is less than a bending radius of the bending region in a first direction, and the first direction is a direction from the display region to the bending region. The present disclosure further provides a display module and a display device.