Transparent Shock Absorption Layer for Flexible Display Impact Resistance
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Solution Overview
Problem
Conventional flexible display devices, such as electronic paper displays, suffer from poor impact resistance due to their protective layers, which can lead to circuit damage and abnormal displays when subjected to external forces.
Innovation Solution
A display device with a transparent shock absorption layer formed by curing liquid adhesive material is introduced, positioned between the active element array substrate and the display layer, along with an optional frame and upper panel to enhance impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a composite material protecting layer is used, then protection function is provided, but impact resistance deteriorates
Solution Approach 1:
A shock absorption layer is introduced as an intermediary component between the protecting layer and the active element array substrate. This intermediate layer absorbs impact forces before they reach the circuits, resolving the contradiction by providing both protection function and impact resistance through the mediator structure.
Solution Approach 2:
The protecting layer is changed from composite material to transparent material (such as transparent resin), and a separate shock absorption layer is added. This composite structure combines the transparency and protection of the upper layer with the shock absorption capability of the lower layer, simultaneously achieving protection function and impact resistance.
2Device complexity
If conventional protecting layer is used, then device structure is simple, but service life deteriorates under external force
Solution Approach 1:
The shock absorption layer is positioned between the protecting layer and the active element array substrate to provide beforehand cushioning. This pre-positioned cushioning layer absorbs external forces before they can damage the circuits, extending service life while maintaining relatively simple device structure.
3Reliability
If protecting layer is made of composite material, then protection is provided, but circuit damage occurs under impact
Solution Approach 1:
The shock absorption layer serves as an intermediary that intercepts and absorbs impact forces, preventing these harmful forces from reaching and damaging the circuits. This mediator structure maintains the protection function while eliminating the harmful effect of circuit damage under impact.
Solution Approach 2:
The shock absorption layer converts the harmful impact force into beneficial energy absorption through its shock absorption properties. The impact energy is dissipated within the shock absorption layer through deformation and friction, transforming the harmful external force into a beneficial energy dissipation mechanism that protects the circuits.
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 transparent shock absorption layer effectively absorbs external forces, preventing damage to circuits and extending the service life of the display device while maintaining a low manufacturing cost.
Implementation Method 1
The transparent shock absorption layer is formed by curing liquid adhesive material
Data Source
AI summary
A display device includes an active element array substrate, a display layer and a transparent shock absorption layer. The display layer is disposed on the active element array substrate. The transparent shock absorption layer is disposed on the display layer. The transparent shock absorption layer is formed by curing liquid adhesive material. A manufacturing method of display device is also provided.