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US4812018A
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Liquid crystal display element having alignment film formed of plasma-polymerized acetonitrile
Assignee: Fujifilm Holdings Corp
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Filing: 1988-03-28
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Granted: 1989-03-14
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Expires: 2008-03-28
Abstract
Abstract A liquid crystal display element which comprises a pair of transparent electrode bases, each comprised of a transparent electrode, an alignment layer on each of the bases, the bases facing each other with the alignment layer thereof being inside, and a liquid crystal sealed between the bases, in which at least one of the alignment layers is formed by plasma polymerization of acetonitrile.
Inventors
- 👤 Shunsuke Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:21
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133711
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
63 words
A liquid crystal display element which comprises a pair of transparent electrode bases, each comprised of a transparent electrode, an alignment layer on each of the bases, said bases facing each other with the alignment layer thereof being inside, and a liquid crystal sealed between the bases, in which at least one of the alignment layers is formed by plasma polymerization of acetonitrile.
Claim 2
Dependent Claim
63 words
A liquid crystal display element which comprises a pair of transparent electrode bases, each comprised of a transparent electrode, an alignment layer on each of the bases, said bases facing each other with the alignment layer thereof being inside, and a liquid crystal sealed between the bases, in which at least one of the alignment layers is formed by plasma polymerization of acetonitrile.
Claim 3
Dependent Claim
32 words
A liquid crystal display element as claimed in claim 1, wherein said alignment layer formed by plasma polymerization of acetonitrile has a thickness of from about 1000 Å to about 6000 Å.
Claim 4
Dependent Claim
27 words
A liquid crystal display element as claimed in claim 1, wherein said element further comprises an insulating layer between the plasma polymerization film and the transparent electrode.
Claim 5
Dependent Claim
32 words
A liquid crystal display element as claimed in claim 3, wherein said alignment layer formed by plasma polymerization of acetonitrile has a thickness of from about 100 Å to about 1,000 Å.
Claim 6
Dependent Claim
19 words
A liquid crystal display element as claimed in claim 3, wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 7
Dependent Claim
24 words
A liquid crystal display element as claimed in claim 3, wherein said insulating film is comprised of an organic polymer or an inorganic material.
Claim 8
Dependent Claim
18 words
A liquid crystal display element as claimed in claim 1, wherein said liquid crystal is ferroelectric liquid crystal.
Claim 9
Dependent Claim
26 words
A liquid crystal display element as claimed in claim 1, wherein the cell thickness of the liquid crystal display element is from 0.5 to 15 μm.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |