SiO.sub.2 -Al.sub.2 O.sub.3 -BaO glass substrates with improved

Details SiO.sub.2 -Al.sub.2 O.sub.3 -BaO glass substrates with improved SiO.sub.2 -Al.sub.2 O.sub.3 -BaO glass substrates with improved

1989-05-25

1991-02-19

Hearn, Brian E.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 67, C03C 800

Patent

active

049944150

ABSTRACT:
Substrates for use in liquidus crystal display devices using thin film transistors, solar cells electroluminescence display devices and/or other devices having a thin film formed on the substrate are formed of a glass. The glass is essentially free from alkali metal oxide, lead oxide, and magnesium oxide, and has a high chemical resistance. The glass consists essentially, by weight, of 52-60% SiO.sub.2, 7-14% Al.sub.2 O.sub.3, 3-12% B.sub.2 O.sub.3, 3-13% CaO, 10-22% BaO, 0-10% SrO, 0-10% ZnO.

REFERENCES:
patent: 4640900 (1987-02-01), Kokubu et al.

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