US4559165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent conducting layer
Assignee: Siemens AG
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Filing: 1983-03-14
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Granted: 1985-12-17
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Expires: 2003-03-14
Abstract
Abstract The invention relates to a transparent display material having a conducting layer of a tin oxide and/or indium oxide composition which withstands electrochemical attacks without the need for elaborate measures. To this end, the invention provides that the conducting layer contains at least one metal of the Ib and/or eighth transition metal group with a content of from about 10 -3 to 3% by weight, relative to tin oxide and/or indium oxide. The conducting layer according to the invention is particularly well suited for use in liquid-crystal displays.
Inventors
- 👤 Hans Kohlmuller
- 👤 Waldemar Nippe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:37
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/54; C25D5/48; C25D5/50; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/13439; H; H01; H01B; H01B1/00; H01B1/06; H01B1/08; H05; H05K; H05K1/00; H05K1/02; H05K1/09
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
70 words
A transparent display material which is resistant toward electrochemical reduction, which comprises a conducting layer composition of tin oxide or indium oxide or a mixture thereof and at least one metal selected from copper, silver, gold, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum or a mixture thereof at a concentration from about 10 -3 to 3 percent by weight relative to the tin oxide and/or indium oxide.
Claim 2
Dependent Claim
70 words
A transparent display material which is resistant toward electrochemical reduction, which comprises a conducting layer composition of tin oxide or indium oxide or a mixture thereof and at least one metal selected from copper, silver, gold, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum or a mixture thereof at a concentration from about 10 -3 to 3 percent by weight relative to the tin oxide and/or indium oxide.
Claim 3
Dependent Claim
13 words
A transparent display material according to claim 1 wherein the metal is platinum.
References Cited (Backward Citations)
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Cited
US4303554A
Cited
US4345000A
Cited
US4420500A
Cited
US4490024A
Cited
US4511218A
Cited
US4399194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |