Flexible Display Hinge Housing Cushioning for Drop Impact Protection
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Solution Overview
Problem
Foldable electronic devices with flexible displays are vulnerable to external shocks due to shear stress in the bending area, which can lead to damage when colliding with rigid structures within the housing, particularly during impacts like drops.
Innovation Solution
Incorporating a hinge housing with protruding portions and cushioning members spaced apart from the flexible display to absorb shocks and prevent direct collision with rigid structures, allowing the display to move within a certain range to alleviate shear stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flexible display is attached to the housing structure to be movable to relieve shear stress, then the surface quality of the flexible display is improved, but the flexible display may collide with internal structures of the housing structure causing damage
Solution Approach 1:
A cushioning member is introduced as an intermediary element between the flexible display and the rigid housing structure. This cushioning member absorbs impact energy and prevents direct collision between the flexible display and hard internal structures, thereby resolving the contradiction between allowing display movement for stress relief and preventing collision damage.
2Reliability
If the flexible display is made movable to absorb external shock, then the durability of the flexible display is improved, but the complexity of the housing structure increases due to additional cushioning components
Solution Approach 1:
The cushioning member is strategically positioned only at specific locations where the flexible display is most vulnerable to impact, rather than providing cushioning across the entire structure. This localized approach maintains durability improvements while minimizing the overall complexity increase of the housing structure.
3Manufacturing precision
If the flexible display is allowed to move freely to relieve shear stress, then the surface quality is maintained, but the display may collide with rigid structures during drop impacts
Solution Approach 1:
The cushioning member is pre-installed in the housing structure at positions that anticipate potential collision points of the flexible display during impact events. This beforehand cushioning ensures that when external shocks occur, the display has already positioned cushioning elements in place to absorb impact, maintaining both surface quality and impact resistance.
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 reduces the risk of damage to the flexible display by absorbing shock and preventing collision with rigid components, thereby enhancing the durability and reliability of foldable electronic devices under external impacts.
Implementation Method 1
cushioning members disposed between the protruding portions and the periphery of the flexible display and spaced apart from the periphery of the flexible display by a certain gap
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.