Foldable Display Hinge Cushioning for Bending Area Shock Protection
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Solution Overview
Problem
Foldable electronic devices with flexible displays are vulnerable to external shocks, particularly in the bending area, where shear stress can damage the display due to differences in curvature between layers, and existing solutions do not effectively absorb shocks without risking damage from collisions with rigid housing structures.
Innovation Solution
The electronic device incorporates a hinge housing with protruding portions and cushioning members spaced apart from the flexible display to absorb shocks, preventing direct collision with the rigid housing structure and distributing stress, thereby protecting the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flexible display is attached to the housing structure so as to be movable to relieve shear stress, then the surface quality of the flexible display is improved, but the flexible display may collide with the internal structure of the housing structure and be damaged
Solution Approach 1:
A cushioning member is introduced as an intermediary element between the flexible display and the protruding portion of the housing structure. This cushioning member absorbs impact forces and prevents direct contact between the flexible display and the rigid housing structure, thereby resolving the contradiction between allowing display movement for stress relief and preventing collision damage.
Solution Approach 2:
The cushioning member is pre-installed in the housing structure at the location where the flexible display might collide during movement. This beforehand cushioning ensures that when the flexible display moves to relieve shear stress, it encounters a soft barrier before reaching the rigid housing structure, preventing damage in advance.
2Reliability
If the flexible display is made movable relative to the housing structure to absorb external shock, then the durability of the flexible display is improved, but the device complexity increases due to additional cushioning members
Solution Approach 1:
Instead of making the entire housing structure complex, the cushioning members are strategically placed only at specific locations where the flexible display is most vulnerable to collision during movement. This local application of cushioning provides the necessary protection while minimizing the overall increase in device complexity.
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 effectively absorbs external shocks, reducing the risk of damage to the flexible display by allowing it to move relative to the housing structure, thus enhancing the durability and reliability of foldable electronic devices.
Implementation Method 1
cushioning members disposed between the protruding portions and the periphery of the flexible display... effectively absorbs external shocks
Data Source
AI summary
An electronic device is provided. The electronic device includes a hinge housing extending in a direction of a rotational axis, a first housing connected to one side of the hinge housing in a direction perpendicular to the rotational axis to rotate about the rotational axis relative to the hinge housing, a second housing connected to an opposite side of the hinge housing in a direction perpendicular to the rotational axis to rotate about the rotational axis relative to the hinge housing, and a flexible display including a bending area at least partially disposed in the hinge housing and formed to be a flat surface or a curved surface, a first area extending from the bending area in one direction perpendicular to the rotational axis, and a second area extending from the bending area in an opposite direction perpendicular to the rotational axis.