High strain point and high young's modulus glasses

US11420897B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Venkatesh Botu · Corning, US
• Xiaoju Guo · Corning, US
• Ellen Anne King · Corning, US
• Lisa Ann Lamberson · Corning, US
• Adama Tandia · Nelson, US
• Kochuparambil Deenamma Vargheese · Horseheads, US
• Jingshi Wu · Riverside, US

Key dates

• Filing date: Jun 10, 2019
• Grant date: Aug 23, 2022
• Expiry date: Jun 10, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/57
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.