Flexible Substrate Bending Stages for Wider Strength Verification
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Solution Overview
Problem
Existing technologies lack effective methods for reliably testing the bending strength of flexible glass substrates, which are prone to deformation and require specialized testing devices considering their unique characteristics.
Innovation Solution
A flexible substrate bending test apparatus with independently movable stages and extension parts that allow for controlled bending and sliding movements, ensuring comprehensive verification of the substrate's strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rigid substrate testing methods are used for flexible glass, then the testing process is simple, but the test results do not accurately reflect the bending strength and reliability of flexible substrates
Solution Approach 1:
The test apparatus is divided into multiple independent stages (first stage, second stage, third stage) that can move relative to each other. Each stage has specific functions: the first stage holds the flexible substrate, the second stage applies bending force, and the third stage provides support. This segmentation allows independent control of each stage to achieve complex bending motions while maintaining reliable testing.
Solution Approach 2:
The apparatus uses dynamic movement of stages rather than static positioning. The first and second stages are driven to move relative to each other, creating dynamic bending conditions that simulate real-world flexible substrate usage. This dynamic approach ensures accurate reliability testing by replicating actual stress conditions.
2Reliability
If the verification test range is expanded to cover more bent portion areas, then the reliability verification is improved, but the device structure becomes more complex
Solution Approach 1:
The substrate holding area is divided across multiple stages with mounting surfaces distributed on different stages. This allows the flexible substrate to be tested in various bent configurations by moving different stages independently, expanding the verification range without requiring a completely redesigned single-stage structure.
Solution Approach 2:
Each stage is designed with multi-functionality: stages serve as both support structures and active bending elements. The mounting surfaces on different stages can simultaneously or sequentially hold and manipulate the substrate, allowing one stage structure to perform multiple testing functions, thereby expanding verification range without proportionally increasing overall complexity.
Data Source
AI summary
A flexible substrate bending test apparatus includes a first stage and a second stage which are driven independently of each other to be relatively movable, where each of the first stage and the second stage has a mounting surface on which a flexible substrate is mounted, a first extension part extending from an edge of the first stage, and a second extension part extending from an edge of the second stage. When the first stage and the second stage are in an unfolded state, a portion of the first extension part and a portion of the second extension part overlap each other in a direction perpendicular to the mounting surface of the first stage.