Flexible Display Hinge with Dynamic Rotation Axis Linkage
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Solution Overview
Problem
Flexible foldable display devices suffer from poor linkage between components due to a fixed rotation axis in their foldable hinges, leading to suboptimal folding performance.
Innovation Solution
The introduction of a hinge device with a fixed trestle, guide slider, support mechanism, and torsion mechanism, where the support mechanism and guide slider rotate relative to the fixed trestle, and the rotation axis can change, allowing for improved linkage and matching between components during folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed rotation axis is used in the foldable hinge, then the structure is simple and easy to manufacture, but the linkage effect between foldable components is poor and folding performance is reduced
Solution Approach 1:
The patent transforms the fixed rotation axis into a dynamic movable rotation axis. The support mechanism includes a guide slider that moves along a curved guide rail during rotation, causing the rotation axis to shift position dynamically. This dynamic adjustment enables the rotation axis to maintain optimal linkage relationships with other foldable components throughout the folding process, significantly improving folding performance while maintaining reasonable structural complexity
2Device complexity
If a fixed rotation axis is used in the foldable hinge, then the device complexity is low, but the linkage effect with other foldable components is poor
Solution Approach 1:
The patent introduces a guide slider that moves along a curved guide rail, transforming the static rotation axis into a dynamic one. This movement allows the rotation axis to adapt its position during folding, maintaining optimal linkage relationships with other components such as the flexible display panel and housing, thereby improving the overall linkage effect without excessive complexity
Solution Approach 2:
The guide slider acts as an intermediary mechanism between the support mechanism and the fixed trestle. It mediates the motion transmission by converting simple rotation into complex curved motion, enabling the rotation axis to move along the guide rail and maintain proper linkage with other foldable components throughout the folding process
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 enhances the bending performance of flexible display devices by providing a dynamic rotation axis that ensures better component linkage, thereby improving the overall folding efficiency and comprehensive performance.
Implementation Method 1
The torsion mechanism includes a first torsion mechanism and a second torsion mechanism
Implementation Method 2
the support mechanism and the guide slider rotate relative to the fixed trestle
Data Source
AI summary
A hinge device and a flexible display device are provided according to embodiments of the present disclosure. The hinge device includes a fixed trestle, a guide slider, and a support mechanism. The guide slider is rotatably connected with the fixed trestle, and the support mechanism is rotatably connected with the fixed trestle. When the hinge device folds or unfolds, the support mechanism and the guide slider rotate relative to fixed trestle, and the support mechanism slide relative to the guide slider, so as to drive the flexible screen to fold or unfold, thereby improving folding performance and folding effect of the panel.