US5327271A
Expired / Lapsed
US
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Liquid crystal device employing polymer network on one substrate and alignment layer or polymer network on other substrate
Assignee: DIC Corp
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Filing: 1991-08-16
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Granted: 1994-07-05
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Expires: 2011-08-16
Abstract
Abstract A liquid crystal device comprising a pair of substrates each having an electrode layer at least one of which is transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure which comprises a transparent solid substance, or one of said substrates having formed thereon said network layer with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with or without an alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates.
Inventors
- 👤 Kiyofumi Takeuchi
- 👤 Haruyoshi Takatsu
- 👤 Yasuo Umezu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:06
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/52; C09K19/54; C09K19/542; C09K19/544; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1334; G02F1/1337; G02F1/133711; G02F1/1347; G02F1/13476; C09K2019/546; G02F1/13345; G02F1/137; G02F1/13725
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
68 words
A liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, each of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 2
Dependent Claim
68 words
A liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, each of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 3
Dependent Claim
29 words
A liquid crystal device as claimed in claim 1, wherein one of said pair of substrates has an active element selected from a thin film transistor or a diode.
Claim 4
Dependent Claim
18 words
A liquid crystal device as claimed in claim 1, wherein said transparent solid substance is a synthetic resin.
Claim 5
Dependent Claim
22 words
A liquid crystal device as claimed in claim 1, wherein said network layer has a thickness of from 2 to 15 μm.
Claim 6
Dependent Claim
26 words
A liquid crystal device as claimed in claim 1, wherein said liquid crystal material contains a dichroic dye having a dichroic ratio of less than 1.
Claim 7
Dependent Claim
17 words
A liquid crystal device as claimed in claim 5, wherein said dichroic dye is an anthraquinone dye.
Claim 8
Dependent Claim
26 words
A liquid crystal device as claimed in claim 1, wherein said liquid crystal material contains a dichroic dye having a dichroic ratio of 1 or more.
Claim 9
Dependent Claim
102 words
A liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 10
Dependent Claim
102 words
A liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 11
Dependent Claim
29 words
A liquid crystal device as claimed in claim 8, wherein one of said pair of substrates has an active element selected from the thin film transistor or a diode.
Claim 12
Dependent Claim
18 words
A liquid crystal device as claimed in claim 8, wherein said transparent solid substance is a synthetic resin.
Claim 13
Dependent Claim
22 words
A liquid crystal device as claimed in claim 8, wherein said network layer has a thickness of from 2 to 15 μm.
Claim 14
Dependent Claim
26 words
A liquid crystal device as claimed in claim 8, wherein said liquid crystal material contains a dichroic dye having a dichroic ratio of less than 1.
Claim 15
Dependent Claim
17 words
A liquid crystal device as claimed in claim 13, wherein said dichroic dye is an anthraquinone dye.
Claim 16
Dependent Claim
26 words
A liquid crystal device as claimed in claim 8, wherein said liquid crystal material contains a dichroic dye having a dichroic ratio of 1 or more.
Claim 17
Dependent Claim
105 words
A liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, one of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer faces to said alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 18
Dependent Claim
105 words
A liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, one of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer faces to said alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 19
Dependent Claim
15 words
A liquid crystal devices as claimed in claim 15, wherein said alignment layer comprises polyimide.
Claim 20
Dependent Claim
18 words
A liquid crystal devices as claimed in claim 15, wherein said alignment layer is a homeotropic alignment layer.
Claim 21
Dependent Claim
18 words
A liquid crystal devices as claimed in claim 15, wherein said alignment layer is a homogeneous alignment layer.
Claim 22
Dependent Claim
29 words
A liquid crystal devices as claimed in claim 15, wherein one of said pair of substrates has an active element selected from a thin film transistor or a diode.
Claim 23
Dependent Claim
18 words
A liquid crystal devices as claimed in claim 15, wherein said transparent solid substance is a synthetic resin.
Claim 24
Dependent Claim
22 words
A liquid crystal devices as claimed in claim 15, wherein said network layer has a thickness of from 2 to 15 μm.
Claim 25
Dependent Claim
26 words
A liquid crystal devices as claimed in claim 15, wherein said liquid crystal material contains a dichroic dye having a dichroic ratio of less than 1.
Claim 26
Dependent Claim
17 words
A liquid crystal devices as claimed in claim 22, wherein said dichroic dye is an anthraquinone dye.
Claim 27
Dependent Claim
26 words
A liquid crystal devices as claimed in claim 15, wherein said liquid crystal material contains a dichroic dye having a dichroic ratio of 1 or more.
Claim 28
Dependent Claim
81 words
A liquid crystal display having, as a transmission display or a projection display, a liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, both of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid structure, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 29
Dependent Claim
81 words
A liquid crystal display having, as a transmission display or a projection display, a liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, both of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid structure, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 30
Dependent Claim
115 words
A liquid crystal display having, as a transmission display or a projection display, a liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 31
Dependent Claim
115 words
A liquid crystal display having, as a transmission display or a projection display, a liquid crystal device comprising a pair of substrates, each substrate having an electrode layer and at least one of the substrates being transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 32
Dependent Claim
117 words
A liquid crystal display having, as a transmission display or a projection display, a liquid crystal device comprising a pair of substrates each having an electrode layer and at least one of the substrates being transparent, one of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer faces to said alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
Claim 33
Dependent Claim
117 words
A liquid crystal display having, as a transmission display or a projection display, a liquid crystal device comprising a pair of substrates each having an electrode layer and at least one of the substrates being transparent, one of said substrates having formed thereon a network layer having a three-dimensional network structure having continuous fine voids which comprises a transparent solid substance with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer faces to said alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates and filling said voids in the network structure.
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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) | 1997-07-04 | 1998-01-03 | 1998-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-04 | 2002-01-03 | 2002-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-04 | 2006-01-03 | 2006-07-05 | $7700.00 | Window Closed / Lapsed |