Crystallized Glass Surface for Hardness and Anti-Reflection
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Solution Overview
Problem
Glass articles used in portable electronic devices and foldable display devices require improved hardness, anti-reflection, and anti-glare properties to withstand external impacts and maintain thinness for portability.
Innovation Solution
A glass article comprising an amorphous glass layer with dispersed crystal particles, where some particles protrude from the surface, enhancing hardness and reducing light reflection through controlled crystallinity and etching processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the glass article is made thinner for portability, then the weight and size are reduced, but the strength and impact resistance deteriorate
Solution Approach 1:
The glass article employs a composite structure consisting of an amorphous glass layer and dispersed crystal particles with different mechanical properties. The crystal particles (5-50 nm in size) embedded in the amorphous matrix create a composite material that enhances strength and impact resistance while maintaining thin thickness, resolving the contradiction between weight reduction and strength maintenance.
Solution Approach 2:
The invention applies local quality enhancement by creating regions with different crystal particle concentrations and sizes within the glass article. The crystal particles are selectively distributed to provide localized reinforcement in areas requiring higher impact resistance, while other regions maintain the lightweight amorphous glass characteristics.
2Weight of moving object
If the glass article is made thinner for portability, then the weight and size are reduced, but the hardness deteriorates
Solution Approach 1:
The composite structure of amorphous glass with dispersed crystal particles provides localized hardness enhancement. The crystal particles (5-50 nm) act as hard phases within the softer amorphous matrix, improving surface hardness and scratch resistance while maintaining the overall thin profile and lightweight characteristics of the glass article.
3Weight of moving object
If the glass article is made thinner for portability, then the weight and size are reduced, but the anti-reflection and anti-glare properties deteriorate
Solution Approach 1:
The invention applies local quality modification by creating surface regions with different refractive indices through controlled crystallization. The crystal particles (5-50 nm) dispersed in the amorphous glass create optical inhomogeneities that scatter and reduce reflected light, providing anti-reflection and anti-glare properties while maintaining the thin, lightweight structure.
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 glass article achieves improved durability, reduced light reflectance, and enhanced surface hardness, making it suitable for foldable display devices with high-quality display performance.
Implementation Method 1
an amorphous glass layer having an amorphous phase, and crystal particles dispersed in the amorphous glass layer and having a crystalline phase
Data Source
AI summary
A glass article comprises an amorphous glass layer having an amorphous phase, and crystal particles dispersed in the amorphous glass layer and having a crystalline phase, wherein some of the crystal particles protrude from a surface of the amorphous glass layer.