Foldable Display Hinge Component for Bending Stress Distribution
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Solution Overview
Problem
Flexible display devices face damage due to excessive load when bent with a smaller radius of curvature than expected, leading to deterioration of electronic circuits and performance.
Innovation Solution
A hinge constituent component with a plate-like portion, rotating shafts, and protruding portions that distribute the load and allow the display panel to bend without excessive stress, featuring a configuration that includes recessed and protruding portions to align surfaces and reduce bending radius.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is bent with a smaller radius of curvature to enable folding, then the device can be folded, but the wiring lines and electronic circuits may be damaged and performance deteriorates
Solution Approach 1:
The hinge constituent component is divided into multiple functional parts: a plate-like portion for structural support, rotating shafts for pivotable movement, and protruding portions for load distribution. This segmentation allows each component to perform its specific function optimally while working together to enable folding without damaging the display panel
Solution Approach 2:
The protruding portions are pre-positioned on the plate-like portion to protrude in the width direction, creating a predetermined load distribution structure before bending occurs. This preliminary configuration ensures that when folding happens, the load is automatically distributed along the intended path, preventing excessive stress concentration on the display panel
2Ease of operation
If the hinge structure causes the display panel to bend with a smaller radius of curvature than expected, then folding is achieved, but excessive load is applied to the bending portion causing potential damage
Solution Approach 1:
The plate-like portion has non-uniform geometry with protruding portions that create localized structural characteristics. These protruding portions specifically address the stress concentration issue at critical bending locations, providing enhanced load distribution exactly where needed while maintaining overall structural integrity
Solution Approach 2:
The protruding portions extend in the width direction (perpendicular to the length direction), adding a dimensional element to the load distribution mechanism. This width-directional protrusion creates a three-dimensional load path that disperses bending stresses more effectively than a simple planar hinge structure
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 reduces the load on the bending portion of the display panel, preventing damage and maintaining performance by distributing the bending stress and ensuring proper alignment of components.
Implementation Method 1
a pair of rotating shafts or a pair of bearing portions provided at each of both ends of the plate-like portion in the length direction
Data Source
AI summary
A hinge constituent component according to the disclosure includes a plate-like portion extending along a length direction, a pair of rotating shafts or a pair of bearing portions provided at each of both ends of the plate-like portion in the length direction, and at least one protruding portion protruding from the plate-like portion in a width direction of the plate-like portion.