Flat panel display

Details Flat panel display Flat panel display

1994-08-10

1996-04-16

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 70, 501 66, 65 992, C03C 3078, C03C 3091

Patent

active

055082378

ABSTRACT:
A flat panel display comprising an aluminosilicate glass panel that exhibits a strain point higher than 640.degree. C., a weight loss less than 20 mg/cm.sup.2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95.degree. C., a CTE in the range of 31-57.times.10.sup.-7 /.degree. C., is nominally free of alkali metal oxides and has a composition consisting essentially of, as calculated in percent by weight on an oxide basis, 49-67% SiO.sub.2, at least 6% Al.sub.2 O.sub.3, the Al.sub.2 O.sub.3 being 6-14% in conjunction with 55-67% SiO.sub.2 and 16-23% in conjunction with 49-58% SiO.sub.2, SiO.sub.2 +Al.sub.2 O.sub.3 >68%, 0-15% B.sub.2 O.sub.3, at least one alkaline earth metal oxide selected from the group consisting of, in the proportions indicated, 0-21% BaO, 0-15% SrO, 0-18% CaO, 0-8% MgO and 12-30% BaO+CaO+SrO+MgO.

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