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US 12,630,462 B2Granted
Glasses for high performance displays
AssigneeCorning Incorporated
InventorsAdam James Ellison, Ellen Anne King, Lisa Ann Lamberson, Peter Joseph Lezzi
Life of this patent
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Abstract
A method of making a glass includes batching constituents, including silica, alumina, boria, magnesia, quicklime, and strontia, where one or more of the constituents is from “dirty” raw material that includes a relatively large amount of sulfur. The method further includes melting and mixing the batch to make glass having sulfur content but free of blisters, suitable for high performance displays.
Claims20
A sheet of glass for a high-performance display, the sheet comprising:
- a thickness greater than or equal to 200 μm and less than or equal to 2 mm;
- a width greater than or equal to 5 cm and less than or equal to 5 m;
- a height greater than or equal to 5 cm and less than or equal to 5 m;
- and
- a composition, as analyzed in mole percent on an oxide basis, comprising:
- 64 to 69 mol % SiO2;
- 11 to 13 mol % Al2O3;
- 6 to 7.5 mol % B2O3;
- 2 to 6 mol % MgO;
- 3 to 8 mol % CaO;
- and
- 3 to 6 mol % SrO;
- and
- wherein the composition further comprises sulfur, and wherein the glass has a molar ratio (MgO+CaO+SrO)/Al2O3 is from 0.95 to 1.3.
11 more elements
A glass, as analyzed in mole percent on an oxide basis, comprising:
- 64 to 69 mol % SiO2;
- 11 to 13 mol % Al2O3;
- 6 to 7.5 mol % B2O3;
- 2 to 6 mol % MgO;
- 3 to 8 mol % CaO;
- and
- 3 to 6 mol % SrO;
- wherein the glass further comprises sulfur, and wherein the glass has a molar ratio (MgO+CaO+SrO)/Al2O3 is from 0.95 to 1.3.
5 more elements
Dependencies are inferred from the claim text.