Buffer Member Impact Absorption in Thin Display Devices
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Solution Overview
Problem
Portable terminals, such as mobile devices, are vulnerable to external impacts, leading to damage of the display panel and window member when dropped, due to their lack of effective impact resistance.
Innovation Solution
A display device design featuring a display panel with a light blocking member, a buffer member, and a bridge member that supports the light blocking member and bracket, providing improved impact resistance by distributing and absorbing external forces, while also incorporating a heat discharge member to manage thermal issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the display panel and window member are made thin and lightweight for portability, then the device becomes more portable and aesthetically pleasing, but the impact resistance and durability decrease
Solution Approach 1:
A buffer member is positioned between the display panel and bracket to provide cushioning before impact reaches the display panel. This buffer member absorbs and distributes impact forces, protecting the display panel from damage during drops or external impacts while maintaining the thin and lightweight design of the overall device.
2Reliability
If the display panel is made more robust with additional protective layers, then the impact resistance improves, but the device thickness and weight increase
Solution Approach 1:
The buffer member is designed as a thin film or flexible structure that provides effective impact protection without adding significant thickness. This thin buffer layer absorbs impact forces while maintaining the overall sleek and thin profile of the display device, avoiding the need for thick protective layers.
Solution Approach 2:
The buffer member is strategically positioned between the display panel and bracket to provide cushioning in advance before impact reaches the display panel. This allows for effective protection using a thin buffer layer rather than requiring the display panel itself to be thick and robust.
3Illumination intensity
If the light blocking member is positioned closer to the display panel to improve display quality, then the display performance improves, but the impact resistance decreases
Solution Approach 1:
The buffer member acts as an intermediary element positioned between the light blocking member and the bracket. This allows the light blocking member to be positioned close to the display panel for optimal display quality while the buffer member provides impact protection, resolving the conflict between display performance and impact resistance.
Data Source
AI summary
A display device includes a display panel configured to display an image, a light blocking member under the display panel, a bracket facing the display panel such that the light blocking member is between the display panel and the bracket, a bridge member between the light blocking member and the bracket, and configured to support a position of the light blocking member and the bracket, and a buffer member at a same layer as the bridge member, and contacting the bridge member.