Base-layer consisting of two materials layer with extreme high/low index in low-e coating to improve the neutral color and transmittance performance

US9365450B2 · kind B2 · utility

Assignees

• INTERMOLECULAR, INC. · US
• Guardian Industries Corp. · US

Inventors

• Guowen Ding · San Jose, US
• Brent Boyce · Novi, US
• Muhammad Imran · Hillsborough Township, US
• Minh Huu Le · San Jose, US
• Zhi-Wen Sun · Sunnyvale, US
• Yu Wang · New Taipei, TW
• Yongli Xu · Plymouth, US

Key dates

• Filing date: Dec 27, 2012
• Grant date: Jun 14, 2016
• Expiry date: Jan 31, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24975
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Low emissivity coated panels can be fabricated using a base layer having a low refractive index layer on a high refractive index layer. The low refractive index layer can have refractive index less than 1.5, and can include MgF2, CaF2, SiO2, or BO. The high refractive index layer can have refractive index greater than 2.3, and can include TiOx, NbOx, or BiOx. The multilayer base structure can allow color tuning with enhanced transmission, for example, as compared to similar structures having single layer base layer.