Patent US5354498A successfully refreshed from Google Patents.
US5354498A
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Phase separation liquid crystal polymer
Assignee: Fujifilm Business Innovation Corp
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Filing: 1992-12-09
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Granted: 1994-10-11
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Expires: 2012-12-09
Abstract
Abstract A phase separation liquid crystal polymer for displays, optical shutters and memories is disclosed, having on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases. The polymer has an increased degree of freedom in control of physical properties and exhibits improved resolving power, improved contrast, and improved rate of response.
Inventors
- 👤 Ryojiro Akashi
- 👤 Akinori Inoue
- 👤 Yutaka Akasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:31
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K19/52; C09K19/54; C09K19/542; C09K19/544; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1334
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
77 words
An optical modulation element having (a) a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and (b) a means for applying an electric field to said polymer, wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 2
Dependent Claim
77 words
An optical modulation element having (a) a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and (b) a means for applying an electric field to said polymer, wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 3
Dependent Claim
27 words
An optical modulation element as claimed in claim 1, wherein said liquid crystal vinyl monomer is present in the proportion of from 10 to 99.9% by weight.
Claim 4
Dependent Claim
27 words
An optical modulation element as claimed in claim 2, wherein said liquid crystal vinyl monomer is present in the proportion of from 50 to 99.5% by weight.
Claim 5
Dependent Claim
28 words
An optical modulation element as claim in claim 1, wherein said polymer further contains at least one low-molecular weight compound which is compatible with the liquid crystal component.
Claim 6
Dependent Claim
30 words
An optical modulation element as claimed in claim 4, wherein the content of the low-molecular weight compound is from 0.1 to 50% by weight based on the liquid crystal polymer.
Claim 7
Dependent Claim
18 words
An optical modulation element as claimed in claim 4, wherein the low-molecular weight compound is a dichroic dyestuff.
Claim 8
Dependent Claim
22 words
An optical modulation element as claimed in claim 4, wherein the low-molecular weight compound is a bicyclohexyl compound or a cyclohexylbenzene compound.
Claim 9
Dependent Claim
62 words
An optical modulation element having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component being present in separate phases, wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 10
Dependent Claim
62 words
An optical modulation element having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component being present in separate phases, wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 11
Dependent Claim
83 words
An optical memory having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases, and said polymer having a glass transition temperature of not less than 30° C., wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 12
Dependent Claim
83 words
An optical memory having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases, and said polymer having a glass transition temperature of not less than 30° C., wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 13
Dependent Claim
83 words
A display device having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at lest one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases, and said polymer having a glass transition temperature of not more than 0° C., wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 14
Dependent Claim
83 words
A display device having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at lest one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases, and said polymer having a glass transition temperature of not more than 0° C., wherein said polymer is a polymer obtained by copolymerizing a liquid crystal vinyl monomer and a non-liquid crystal vinyl monomer.
Claim 15
Dependent Claim
108 words
An optical modulation element which is optically modulated by application of an electric field having (a) a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and (b) a means for applying an electric field to said polymer, wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer.
Claim 16
Dependent Claim
108 words
An optical modulation element which is optically modulated by application of an electric field having (a) a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and (b) a means for applying an electric field to said polymer, wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer.
Claim 17
Dependent Claim
92 words
An optical modulation element having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer.
Claim 18
Dependent Claim
92 words
An optical modulation element having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer.
Claim 19
Dependent Claim
105 words
An optical memory having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer, and said polymer having a glass transition temperature of not less than 30° C.
Claim 20
Dependent Claim
105 words
An optical memory having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer, and said polymer having a glass transition temperature of not less than 30° C.
Claim 21
Dependent Claim
106 words
A display device element having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer, and said polymer having a glass transition temperature of not more than 0° C.
Claim 22
Dependent Claim
106 words
A display device element having a pair of electrodes having therebetween a liquid crystal polymer containing side chains comprising on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases and wherein said polymer is an addition polymer obtained by adding a liquid crystal compound having a vinyl group or an active proton and a non-liquid crystal compound having a vinyl group or an active proton to a partially hydrogenated silicone polymer, and said polymer having a glass transition temperature of not more than 0° C.
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