Avanstrate Inc.

Mikiko Hashimoto

Akihiro Koyama

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 SiO; 4 to 11% of BO; 15 to 20% of AlO; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of KO; 0 to 1% of SnO; and 0 to 0.2% of FeO, 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&#xb0; C. or lower.

Glass composition, glass substrate for flat panel display using the same, flat panel display, and method for producing glass substrate for flat panel display

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 SiO; 4 to 11% of BO; 15 to 20% of AlO; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of KO; 0 to 1% of SnO; and 0 to 0.2% of FeO, 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&#xb0; C. or lower.

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Mie, Japan

Mikiko Hashimoto