Flexible Display Bending Fixture for Multi-Fold Deformation Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bending test methods are inadequate for evaluating the bending performance of flexible display apparatuses that can be folded multiple times, and they do not adequately adjust to the shape and size of the display.
Innovation Solution
A bending test apparatus and method that includes adjustable chucks with inclined support surfaces and rotators, allowing for various bending configurations, including folding more than twice, and accommodating different display sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing bending test methods are used, then the test apparatus structure is simple, but the ability to evaluate multiple folding configurations and accommodate different display shapes is insufficient
Solution Approach 1:
The apparatus divides the support function into multiple independent chucks (first chuck, second chuck, third chuck) that can be independently positioned and rotated. Each chuck can be adjusted separately to accommodate different bending configurations, enabling evaluation of multiple folding scenarios without requiring a completely different apparatus for each test type.
Solution Approach 2:
The chucks are equipped with rotators that enable dynamic adjustment of their positions and orientations during the test. The rotators allow the chucks to move between different angular positions to simulate various bending configurations, transforming a static support structure into a dynamic, adaptable system that can evaluate multiple bending scenarios.
2Adaptability or versatility
If fixed chuck positions are used, then the apparatus structure is simple, but the ability to adjust to different display shapes and sizes is limited
Solution Approach 1:
The support system is segmented into multiple independently adjustable chucks rather than a single fixed structure. This segmentation allows each chuck to be independently positioned at different locations and angles, enabling adaptation to various display shapes and sizes without requiring a complex overall reconfiguration of the entire apparatus.
Solution Approach 2:
The rotatable chucks serve multiple functions: they can be positioned at different locations along the display, rotated to different angular positions, and configured to support various bending scenarios. This multi-functionality allows a single apparatus design to accommodate different display shapes and sizes without requiring separate specialized equipment for each test type.
3Measurement precision
If standard bending test apparatus is used, then the device complexity is low, but the measurement precision for deformation characteristics is insufficient
Solution Approach 1:
The apparatus segments the support and measurement function across multiple chucks and rotators, allowing for more precise control and measurement of deformation at different locations and angles. This segmentation enables detailed evaluation of deformation characteristics that would be difficult to capture with a single fixed-point apparatus.
Solution Approach 2:
The apparatus incorporates cameras positioned to capture the bending process, providing visual feedback and measurement data about the deformation characteristics. This feedback mechanism allows for precise measurement and analysis of how the display deforms during bending, enabling accurate evaluation of bending strength and deformation properties.
Data Source
AI summary
A bending test apparatus and a bending test method are disclosed. A bending test apparatus includes a first chuck including a first support surface, a second chuck spaced apart from a first end of the first chuck, the second chuck including a second support surface, and a rotator configured to rotate the second chuck with respect to the first chuck. The first support surface includes a first flat support surface, and a first inclined support surface coupled to the first flat support surface. The first inclined support surface is between the first flat support surface and the first end of the first chuck, and a first acute angle is defined between the first inclined support surface and the first flat support surface.