Transparency-switching glass assembly with sleek design and enhanced dewetting properties
The transparency-switching glass assembly with optimized spacer and viscosity-matched fluid enables immediate transitions and reduced liquid consumption, addressing slow transitions and high costs in existing systems.
WO2026126213A1PCT designated stage Publication Date: 2026-06-18SAINT GOBAIN VITRAGE SA +1
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SAINT GOBAIN VITRAGE SA
- Filing Date
- 2025-02-18
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Existing transparency-switching glass systems face challenges with slow transitions between transparent and opaque states, excessive liquid consumption, and high production costs due to complex manufacturing processes.
⚗Method used
A transparency-switching glass assembly with optimized spacer thickness and viscosity-matched fluid, allowing for immediate transitions without additional coatings, reducing liquid volume requirements and simplifying design.
🎯Benefits of technology
The system achieves efficient, responsive transitions with reduced liquid consumption and lower production costs, enhancing usability and sustainability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure IN2025050236_18062026_PF_FP_ABST
Abstract
The present invention relates to a transparency-switching glass assembly designed to enable efficient transitions between transparent and completely opaque states. Said assembly comprises at least two transparent substrates sealed together to form a cavity, with a spacer maintaining a gap between the substrates. A refractive index-matched fluid, introduced into the cavity, has a viscosity ranging from 0.1 to 15 millipascal-seconds (mPas). The spacer has a thickness of less than 300 micrometers (μm), which facilitates an efficient transition between transparent and opaque states. This assembly eliminates the need for traditional coatings, simplifying the design while improving the overall performance, durability, and energy efficiency of the glass assembly.
Need to check novelty before this filing date? Find Prior Art