Segmented Display Backplate for Crease-Free Corner Bending
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flexible display devices face challenges with crease formation and damage at the corners due to contraction deformation during bending, leading to deteriorated display quality.
Innovation Solution
The display device incorporates a metal plate with grooves and opening portions in the bending areas, particularly at the corners, and a backplate with varying thermal contraction ratios to absorb and dissipate stress, ensuring smooth bending without creases or damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is bent to achieve flexibility and compact form, then spatial utilization and design advantages are improved, but creases form and damage occurs at corner portions due to stress concentration
Solution Approach 1:
The support plate is divided into multiple regions: a first support plate region corresponding to the non-bending area, a second support plate region corresponding to the first bending area, and a third support plate region corresponding to the second bending area. This segmentation allows each region to provide appropriate support characteristics for its specific functional area, reducing stress concentration at corners while maintaining flexibility in bending areas.
Solution Approach 2:
Different support characteristics are provided at different locations: the first support plate region provides uniform support for the non-bending area, while the second and third support plate regions provide enhanced support specifically at bending areas and corner portions. This local differentiation of support quality prevents creases and damage at critical corner regions while preserving flexibility where needed.
2Ease of manufacture
If uniform support is provided across the entire display panel, then manufacturing simplicity is maintained, but stress concentration occurs at corner portions during bending
Solution Approach 1:
The support plate is segmented into distinct regions with different support characteristics. The first support plate region, second support plate region, and third support plate region are defined based on their corresponding display panel areas, allowing stress distribution to be optimized for each region rather than using uniform support throughout.
Solution Approach 2:
The support plate provides locally differentiated support: the third support plate region corresponding to corner portions provides enhanced support to prevent stress concentration and damage at these high-stress areas, while other regions provide appropriate support levels for their specific functions.
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
This design effectively reduces stress concentrations at the corners, preventing creases and damage to the display panel, maintaining display quality and durability.
Implementation Method 1
a groove is disposed in the second metal plate, and the third metal plate includes a plurality of opening portions
Implementation Method 2
a backplate, which has a thermal contraction ratio that varies depending on bending areas, may be disposed, thereby reducing stress caused by bending
Data Source
AI summary
A display device includes a display panel with a non-bending area and bending areas, and a metal plate disposed on a lower portion of the display panel and configured to support the display panel. The bending areas include first bending areas corresponding to a lateral portion of the non-bending area, and second bending areas corresponding to a corner of the non-bending area. The metal plate includes a first metal plate disposed in the non-bending area, a second metal plate disposed to correspond to the first bending areas, and a third metal plate disposed to correspond to the second bending areas with a groove is disposed in the second metal plate, and the third metal plate includes a plurality of opening portions to reduce stress caused by bending.