Aluminosilicate Glasses
AssigneeCorning Incorporated
InventorsAdam James Ellison, Jacques Gollier, Timothy James Kiczenski, Ellen Anne King, Luis Alberto Zenteno
Life of this patent
Estimating the term…
Abstract
Compounds, compositions, articles, devices, and methods for the manufacture of light guide plates and back light units including such light guide plates made from glass. In some embodiments, light guide plates (LGPs) are provided that have similar or superior optical properties to light guide plates made from PMMA and that have exceptional mechanical properties such as rigidity, CTE and dimensional stability in high moisture conditions as compared to PMMA light guide plates.
Claims50
A glass article, comprising:
- a glass sheet with a front face having a width and a height, a back face opposite the front face, and a thickness between the front face and back face,
- wherein the glass sheet comprises from about 50 mol % to about 90 mol % SiO2, from about 0 mol % to about 20 mol % Al2O3, from about 5 mol % to about 20 mol % B2O3, and from about 0 mol % to about 25 mol % RxO,
- wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1, and
- wherein the glass produces less than or equal to 2 dB/500 mm absorption.
A glass article, comprising:
- a glass sheet with a front face having a width and a height, a back face opposite the front face, and a thickness between the front face and back face,
- wherein the glass sheet comprises from about 60 mol % to about 80 mol % SiO2, from about 0.1 mol % to about 15 mol % Al2O3, from about 5 mol % to about 12 mol % B2O3, and from about 0.1 mol % to about 15 mol % RxO,
- wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1, and
- wherein the glass produces less than or equal to 2 dB/500 mm absorption.
A glass article comprising:
- a glass sheet comprising from about 50 mol % to about 90 mol % SiO2, from about 0 mol % to about 15 mol % Al2O3, from about 5 mol % to about 12 mol % B2O3, and from about 2 mol % to about 25 mol % RxO,
- wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1, and
- wherein Fe+30Cr+35Ni<about 60 ppm.
A glass article comprising:
- a glass sheet comprising from about 50 mol % to about 90 mol % SiO2, from about 0 mol % to about 15 mol % Al2O3, from about 5 mol % to about 12 mol % B2O3, and from about 2 mol % to about 25 mol % RxO,
- wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1, and
- wherein the glass produces 2 dB/500 mm or less of light attenuation in the glass sheet.
A glass article comprising:
- a glass sheet comprising from about 50 mol % to about 90 mol % SiO2, from about 0 mol % to about 15 mol % Al2O3, from about 5 mol % to about 12 mol % B2O3, and about 0 mol % to about 25 mol % RxO,
- wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1,
- wherein the glass produces 2 dB/500 mm or less of light attenuation in the glass sheet, and
- wherein 0<(RxO—Al2O3)<25, −11<(R2O—Al2O3)<11, and −15<(R2O—Al2O3—MgO)<11.
Dependencies are inferred from the claim text.