US4183630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twisted nematic field effect mode liquid crystal display
Assignee: Sharp Corp
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Filing: 1978-10-27
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Granted: 1980-01-15
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Expires: 1998-10-27
Abstract
Abstract A twisted nematic field effect mode liquid crystal display cell comprises a liquid crystal layer sandwiched between front and rear substrates on which transparent electrodes are formed, a front polarizer disposed in front of the front substrate, and a rear polarizer disposed at the back of the rear substrate. The rear substrate comprises a glass plate, and the front substrate comprises a fiber plate. The fiber plate comprises a plurality of optical fibers of which axes are perpendicular to the plane determined by the liquid crystal layer.
Inventors
- 👤 Fumiaki Funada
- 👤 Kiyoshi Toda
- 👤 Masataka Matsuura
- 👤 Tomio Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:54
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133524
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
57 words
A twisted nematic field effect mode liquid crystal display cell comprising a liquid crystal layer sandwiched between first and second substrates, and a polarizer positioned in front of said first substrate, said first substrate comprising; a fiber plate including a plurality of optical fibers of which axes are perpendicular to the plane of said liquid crystal layer.
Claim 2
Dependent Claim
57 words
A twisted nematic field effect mode liquid crystal display cell comprising a liquid crystal layer sandwiched between first and second substrates, and a polarizer positioned in front of said first substrate, said first substrate comprising; a fiber plate including a plurality of optical fibers of which axes are perpendicular to the plane of said liquid crystal layer.
Claim 3
Dependent Claim
38 words
The twisted nematic field effect mode liquid crystal display cell of claim 1, wherein said fiber plate has a surface confronting the liquid crystal layer, said surface being substantially parallel with said plane of said liquid crystal layer.
Claim 4
Dependent Claim
26 words
The twisted nematic field effect mode liquid crystal display cell of claim 2, wherein a transparent electrode is formed on said surface of said fiber plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |