Invention Grant
US09242890B2 Glass composition, glass substrate for flat panel display using the same, flat panel display, and method for producing glass substrate for flat panel display
有权
玻璃组合物，使用其的平板显示器用玻璃基板，平板显示器以及用于制造平板显示器用玻璃基板的方法
- Patent Title: Glass composition, glass substrate for flat panel display using the same, flat panel display, and method for producing glass substrate for flat panel display
- Patent Title (中): 玻璃组合物，使用其的平板显示器用玻璃基板，平板显示器以及用于制造平板显示器用玻璃基板的方法
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Application No.: US14015495Application Date: 2013-08-30
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Publication No.: US09242890B2Publication Date: 2016-01-26
- Inventor: Akihiro Koyama , Mikiko Hashimoto
- Applicant: AvanStrate Inc.
- Applicant Address: JP Mie
- Assignee: AvanStrate, Inc.
- Current Assignee: AvanStrate, Inc.
- Current Assignee Address: JP Mie
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2009-284809 20091216
- Main IPC: C03C3/091
- IPC: C03C3/091
Abstract:
Provided is a glass composition suitable for a glass substrate for a flat panel display such as a liquid crystal display. This glass composition has high thermal stability, and is substantially free of BaO but has a low devitrification temperature. It is suitable for the production of a glass substrate by a downdraw process. This glass composition contains, in terms of mass %: 54 to 62% of SiO2; 4 to 11% of B2O3; 15 to 20% of Al2O3; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of K2O; 0 to 1% of SnO2; and 0 to 0.2% of Fe2O3, and is substantially free of BaO. In this glass composition, the total content of alkaline earth metal oxides (MgO+CaO +SrO) is 10 to 18.5 mass %. The devitrification temperature of the glass composition is 1200° C. or lower.
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