Vehicle Window with Chemically Strengthened Glass and Optical Modulator
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Incorporating electrically adjustable optical components into vehicle windows is challenging due to their vulnerability to damage from environmental exposure and chemical susceptibility, which affects their performance and durability.
Innovation Solution
A system featuring a pair of laminated glass layers with a thin chemically strengthened glass layer covering an inwardly facing surface, incorporating an infrared light-blocking coating and an antireflection coating with low emissivity, and an electrically adjustable optical component layer such as a guest-host liquid crystal light modulator, protected by the chemically strengthened glass layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrically adjustable optical components are incorporated into vehicle windows, then light transmission control and heat management are improved, but the components become vulnerable to damage from environmental exposure and chemical susceptibility
Solution Approach 1:
A thin chemically strengthened glass layer is introduced as an intermediary protective element between the adjustable optical component and the external environment. This glass layer acts as a barrier that shields the optical component from environmental exposure, UV radiation, and chemical contaminants while allowing electrical signals and light to pass through, thereby resolving the contradiction between adaptability and reliability
Solution Approach 2:
The window structure employs a composite construction combining multiple materials: laminated glass layers, chemically strengthened glass, and the adjustable optical component layer. Each material contributes specific properties - the glass provides mechanical strength and environmental protection, while the optical component provides light transmission control. This composite approach enables both the optical functionality and the durability to coexist
2Reliability
If a thin chemically strengthened glass layer is added to protect the optical component, then durability is improved, but device complexity increases
Solution Approach 1:
A thin glass layer is used instead of a thick protective structure. The thin film approach provides sufficient protection against environmental damage and chemical exposure while minimizing the additional complexity and thickness. The chemical strengthening process enhances the protective properties without requiring increased material quantity, thus balancing reliability improvement with complexity management
3Temperature
If infrared light-blocking coating and antireflection coating are applied, then heat management and optical performance are improved, but manufacturing complexity increases
Solution Approach 1:
Multiple functional coatings (infrared light-blocking coating and antireflection coating) are combined and applied to the same glass surface. This merging of functions into a single coating layer or integrated coating system reduces the number of separate manufacturing steps compared to applying multiple distinct coating layers, thereby improving heat management and optical performance while managing manufacturing complexity
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
Enhances the durability and performance of vehicle windows by protecting the adjustable optical components from damage while allowing for adjustable light transmission, heat management, and improved occupant comfort through infrared blocking and antireflection properties.
Implementation Method 1
A thin chemically strengthened glass layer may be coupled to an inwardly facing surface of the structural window layer
Implementation Method 2
An infrared light-blocking coating may be formed on an inwardly facing surface of one of the pair of laminated glass layers
Implementation Method 3
The inwardly facing surface of the chemically strengthened glass layer may be provided with an antireflection coating that includes a low emissivity layer to block heat
Data Source
AI summary
A system such as a vehicle may have windows. A window may have a structural window layer such as a structural window layer formed from laminated glass layers. A thin chemically strengthened glass layer may be coupled to an inwardly facing surface of the structural window layer. A guest-host liquid crystal light modulator layer or other electrically adjustable optical component layer may be interposed between the chemically strengthened glass layer and the structural window layer. An infrared light-blocking coating may be formed on an inwardly facing surface of one of the pair of laminated glass layers. The inwardly facing surface of the thin chemically strengthened glass layer may be provided with a coating that includes a low emissivity layer to block heat and that serves as an antireflection coating.