Glasses for flat panel display
First Claim
Patent Images
1. A barium aluminosilicate glass exhibiting a strain point higher than 650°
- C., a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95°
C., a CTE between 34 and 50×
10-7 /°
C., nominally free of alkali metal oxides and having a composition consisting essentially of, as calculated in percent by weight on an oxide basis, 50-65% SiO2, at least 8% Al2 O3, the Al2 O3 being 8-13% and CaO 0-7.1% in conjunction with 55-65% SiO2 and the Al2 O3 being 18-22% and CaO 0-18% in conjunction with 50-55% SiO2, SiO2 +Al2 O3 >
68%, 0-6% B2 O3, 2-21% BaO, 0-13% SrO, 0-6% MgO and 13-20% BaO+ CaO+SrO+MgO.
0 Assignments
0 Petitions
Accused Products
Abstract
A barium aluminosilicate glass for production of a panel in an LCD device and a method of producing the panel. The glass consists essentially of, as calculated in percent by weight on an oxide basis, 50-65% SiO2, at least 8% Al2 O3, the Al2 O3 being 8-13% in conjunction with 55-65% SiO2 and 18-22% in conjunction with 50-55% SiO2, SiO2 +Al2 O3 >68%, 0-8% B2 O3, 2-21% BaO, 0-13% SrO, 0-18% CaO, 0-6% MgO and 13-30% BaO+CaO+SrO+MgO.
106 Citations
10 Claims
-
1. A barium aluminosilicate glass exhibiting a strain point higher than 650°
- C., a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95°
C., a CTE between 34 and 50×
10-7 /°
C., nominally free of alkali metal oxides and having a composition consisting essentially of, as calculated in percent by weight on an oxide basis, 50-65% SiO2, at least 8% Al2 O3, the Al2 O3 being 8-13% and CaO 0-7.1% in conjunction with 55-65% SiO2 and the Al2 O3 being 18-22% and CaO 0-18% in conjunction with 50-55% SiO2, SiO2 +Al2 O3 >
68%, 0-6% B2 O3, 2-21% BaO, 0-13% SrO, 0-6% MgO and 13-20% BaO+ CaO+SrO+MgO. - View Dependent Claims (2, 3, 4, 5)
- C., a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95°
-
6. An LCD device comprising a barium aluminosilicate glass panel, the glass exhibiting a strain point higher than 650°
- C., a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95°
C., a CTE between 34 and 50×
10-7 /°
C., nominally free of alkali metal oxides and having a composition consisting essentially of, as calculated in percent by weight on an oxide basis, 50-65% SiO2, at least 8% Al2 O3, the Al2 O3 being 8-13% and CaO 0-7.1% in conjunction with 55-65% SiO2 and the Al2 O3 being 18-22% and CaO 0-18% in conjunction with 50-55% SiO2, SiO2 +Al2 O3 >
68%, 0-6% B2 O3, 2-21% BaO, 0-13% SrO, 0-6% MgO and 13-30% BaO+CaO+SrO+MgO. - View Dependent Claims (7, 8)
- C., a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95°
-
9. A method of producing a glass panel for an LCD device which comprises melting a batch for a barium aluminosilicate glass consisting essentially of, as calculated in percent by weight on an oxide basis, 50-65% SiO2 at least 8% Al2 O3, the Al2 O3 being 8-13% and CaO 0-7.1% in conjunction with 55-65% SiO2 and the Al2 O3 being 18-22% and CaO 0-18% in conjunction with 50-55% SiO2, SiO2 +Al2 O3 >
- 68%, 0-6% B2 O3, 2-21% BaO, 0-13% SrO, 0-6% MgO and 13-30% BaO+CaO, SrO+MgO, and drawing a thin sheet of molten glass for the melt.
- View Dependent Claims (10)
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeCorning Incorporated
-
Original AssigneeCorning Incorporated
-
InventorsNeubauer, Dean V., Moffatt, Dawne M.
-
Primary Examiner(s)GROUP, KARL E
-
Application NumberUS08/445,566Time in Patent Office288 DaysField of Search501/69, 501/70, 501/66, 65/90, 65/99.2US Class Current501/69CPC Class CodesC03C 3/085 containing an oxide of a di...C03C 3/091 containing aluminiumG02F 1/133337 Layers preventing ion diffu...
