IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0758903
(2001-01-11)
|
우선권정보 |
DE-0000837 (2000-01-12) |
발명자
/ 주소 |
- Peuchert, Ulrich
- Brix, Peter
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
25 인용 특허 :
8 |
초록
▼
Flat panel liquid-crystal displays, such as for laptop computers. The displays include twisted nematic displays, supertwisted nematic displays, active matrix liquid-crystal displays, thin film transistor displays, and plasma addressed liquid-crystal displays. The displays are furnished with glass su
Flat panel liquid-crystal displays, such as for laptop computers. The displays include twisted nematic displays, supertwisted nematic displays, active matrix liquid-crystal displays, thin film transistor displays, and plasma addressed liquid-crystal displays. The displays are furnished with glass substrates. The glass substrates exhibit high resistance to thermal shock, a high transparency over a broad spectral range in the visible and ultra violet ranges and the glass being configured to be free of bubbles, knots, inclusions, streaks, and surface undulations, which glass substrates are made from alkali-free aluminoborosilicate glasses. There are also provided analogous thin-film photovoltaics.
대표청구항
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1. A glass comprising:a substantially alkali-free aluminoborosilicate glass; said glass having the composition (in % by weight, based on oxide): SiO2>58 ? 65B2O3>6 ? 11.5Al2O3>14 ? 25MgO4 ? 8CaO0 ? 8SrO2.6 ? <4BaO0 ? <0.5with SrO + BaO>3ZnO0.5 ? 2;?said composition of said SiO2, sa
1. A glass comprising:a substantially alkali-free aluminoborosilicate glass; said glass having the composition (in % by weight, based on oxide): SiO2>58 ? 65B2O3>6 ? 11.5Al2O3>14 ? 25MgO4 ? 8CaO0 ? 8SrO2.6 ? <4BaO0 ? <0.5with SrO + BaO>3ZnO0.5 ? 2;?said composition of said SiO2, said B2O3, said Al2O3, said MgO, said CaO, said SrO, said BaO, said SrO+BaO, and said ZnO being selected to provide all of (i.), (ii.), (iii.), and (iv.), wherein (i.), (ii.), (iii.), and (iv.) comprise: (i.) a coefficient of thermal expansion α20/300 of between 2.8×10?6/K and 3.8×10?6/K; (ii.) a glass transition temperature, Tg, of more than 713 degrees Celsius to maximize heat resistance of said glass; (iii.) a temperature at a viscosity of 102 dPas of at most 1694 degrees Celsius; and (iv.) a processing temperature, VA, at a viscosity of 104 dPas of at most 1273 degrees Celsius. 2. The glass according to claim 1, wherein:said glass contains from more than 8% by weight to 11.5% by weight of B2O3. 3. The glass according to claim 2, comprising all of (a.), (b.), (c.), (d.), (e.), (f.), and (g.), wherein (a.), (b.), (c.), (d.), (e.), (f.), and (g.) comprise:(a.) one of (i.), (ii.), and (iii.): (i.) more than 18% by weight of Al2O3; (ii.) at least 20.5% by weight of Al2O3; and (iii.) at least 21% by weight of Al2O3; (b.) one of (i.) and (ii.): (i.) a glass containing additionally (in % by weight): ZrO20-2??TiO20-2??with ZrO2 + TiO20-2??As2O30-1.5Sb2O30-1.5SnO20-1.5CeO20-1.5Cl?0-1.5F?0-1.5SO42?0-1.5?with As2O3+Sb2O3+SnO2+CeO2+Cl?+F?+SO42? 0-1.5; and (ii.) a glass minimized in ZrO2, SnO2, TiO2, and CeO2; (c.) a glass in which arsenic oxide, antimony oxide, and inherent impurities are minimized; (d.) said glass comprises a float glass; (e.) a density, ρ, of <2.600 g/cm3; (f.) all of (i.), (ii.), and (iii.): (i.) said glass is resistant to thermal shock; (ii.) said glass has a high transparency over a broad spectral range in the visible and ultra violet ranges; and (iii.) glass is free of bubbles, knots, inclusions, streaks, and surface undulations; and (g.) said glass comprises a glass substrate for a flat panel liquid-crystal display, such as, for a laptop computer, the flat panel liquid-display including a twisted nematic display, a supertwisted nematic display, an active matrix liquid-crystal display, a thin film transistor display, and a plasma addressed liquid-crystal display.
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