Coated Display Window Structure for Higher Impact Resistance
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Solution Overview
Problem
Conventional display device windows lack sufficient impact resistance and structural integrity, especially when integrated with touch panels, and require enhanced protection against external impacts while maintaining thinness and light weight.
Innovation Solution
A window structure comprising a base substrate with a first and second coating layer, where the first coating layer is covalently bonded to the base substrate and overlaps vertical and inclined surfaces, enhancing impact resistance, and the second coating layer improves surface hardness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the window thickness is increased to improve impact resistance, then the impact resistance is improved, but the weight and volume of the window increase
Solution Approach 1:
The patent applies composite materials by combining the base substrate with multiple coating layers (first coating layer and second coating layer) having different functional properties. The first coating layer provides impact resistance while the second coating layer provides surface hardness, creating a composite structure that achieves enhanced protection without increasing the thickness or weight of the base substrate alone.
2Strength
If the window thickness is increased to improve impact resistance, then the impact resistance is improved, but the volume of the window increases
Solution Approach 1:
The patent uses composite materials with multiple functional coating layers applied on the base substrate. This composite structure provides enhanced impact resistance and surface hardness without increasing the overall thickness or volume of the window, as the coating layers are applied on the existing substrate surface.
Solution Approach 2:
The patent applies local quality by providing different coating layers with specific functions at different locations on the base substrate. The first coating layer is applied to provide impact resistance where needed, while the second coating layer is applied to provide surface hardness on the outer surface, optimizing protection locally rather than uniformly thickening the entire window.
3Strength
If a coating layer is added to improve impact resistance, then the impact resistance is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent employs composite materials with multiple coating layers (first coating layer and second coating layer) on the base substrate to achieve enhanced impact resistance. While this multi-layer composite structure does increase manufacturing complexity compared to a single-layer design, it provides superior functional performance with optimized protection properties.
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 window design provides improved impact resistance and structural integrity, reducing the window and display device weight and volume, while maintaining transparency and durability.
Implementation Method 1
the base substrate and the first coating layer may be covalently bonded to each other
Data Source
AI summary
A window for a display device that includes: a base substrate; a first coating layer disposed on a first surface of the base substrate; and a second coating layer disposed on a second surface that overlaps the first surface of the base substrate, wherein the base substrate further includes a vertical surface perpendicular to the first surface and the second surface, and the first coating layer overlaps the vertical surface. The impact resistance of the window is improved through the first coating layer covering the rear surface and the vertical surface of the base substrate.