Patent US4810061A successfully refreshed from Google Patents.
US4810061A
Expired / Lapsed
US
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Liquid crystal element having conductive wiring part extending from top of transistor light shield to edge
Assignee: Alps Alpine Co Ltd
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Filing: 1988-03-25
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Granted: 1989-03-07
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Expires: 2008-03-25
Abstract
Abstract Disclosed is a liquid crystal element using a film transistor as a switching element, the liquid crystal element comprising two substrates opposed to each other, film transistors and spacers disposed on the opposed surface of one of the substrates, a transparent electrode formed on the opposed surface of the other substrate, a metal wiring formed simultaneously with a light shield of a film transistor or an upper metal layer of the spacer, the metal wiring having one end disposed between the film transistor or spacer and the transparent electrode whereas the other end thereof extends to the peripheral edge of the one substrate.
Inventors
- 👤 Jun Nakanowatari
- 👤 Kazuya Okabe
- 👤 Hideyuki Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:53
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; G02F1/136; G02F1/1362; G02F1/1368; G02F1/1335; G02F1/133509; G02F1/133512; G02F1/1339; G02F1/13392; G02F2201/00; G02F2201/12; G02F2201/121
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
89 words
A liquid crystal element comprising two substrates opposed to each other, film transistors and spacers disposed on the opposed surface of one of said substrates, a transparent electrode formed on the opposed surface of the other substrate, a metal wiring formed simultaneously with a light shield of a film transistor or an upper metal layer of the spacer, said metal wiring having one end disposed between said film transistor or spacer and said transparent electrode whereas the other end thereof extends to the peripheral edge of said one substrate.
Claim 2
Dependent Claim
89 words
A liquid crystal element comprising two substrates opposed to each other, film transistors and spacers disposed on the opposed surface of one of said substrates, a transparent electrode formed on the opposed surface of the other substrate, a metal wiring formed simultaneously with a light shield of a film transistor or an upper metal layer of the spacer, said metal wiring having one end disposed between said film transistor or spacer and said transparent electrode whereas the other end thereof extends to the peripheral edge of said one substrate.
Claim 3
Dependent Claim
16 words
A liquid crystal element according to claim 1 wherein said metal wiring is formed of aluminum.
Claim 4
Dependent Claim
19 words
A liquid crystal element according to claim 1 wherein said metal wiring is in the shape of a linearity.
Claim 5
Dependent Claim
21 words
A liquid crystal element according to claim 1 wherein said metal wiring is in the shape of a strip of paper.
References Cited (Backward Citations)
US4448491A
Cited
US4536059A
Cited
US4759610A
Cited
US4723838A
Cited
US4733948A
Cited
JPS61183625A
Cited
JPS61208029A
Cited
US4697331A
Cited
US4653864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |