Patent EP0177271A2 successfully refreshed from Google Patents.
EP0177271A2
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Liquid crystal devices
Assignee: Imperial Chemical Industries Ltd
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Filing: 1985-09-26
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Granted: —
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Expires: 2005-09-26
Abstract
Abstract Liquid crystal displays comprising as the alignment layer a polyphenyl polymer.
Inventors
- 👤 William Andrew Barlow
- 👤 E. Peter Ministry Of Defence Raynes
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 17:21
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/10; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133711
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
19 words
A liquid crystal alignment layer comprising a polyphenylene polymer in contact with an electrode component supported upon a substrate.
Claim 2
Dependent Claim
19 words
A liquid crystal alignment layer comprising a polyphenylene polymer in contact with an electrode component supported upon a substrate.
Claim 3
Dependent Claim
20 words
. An alignment layer as claimed in Claim 1 characterised in that the polyphenylene polymer is prepared from a cyclohexadiene.
Claim 4
Dependent Claim
15 words
An alignment layer as claimed in Claim 1 of thickness from up to 20 microns.
Claim 5
Dependent Claim
14 words
An alignment layer as claimed in Claim 3 of thickness 0.5 to 2 microns.
Claim 6
Dependent Claim
24 words
An alignment layer as claimed in any of Claims 1 to 4 and capable of providing a tilt bias angle between 5* and 15*.
Claim 7
Dependent Claim
22 words
6, A cell for a liquid crystal display device comprising an alignment layer as claimed in any one of the preceding claims.
Claim 8
Dependent Claim
20 words
A liquid crystal display device comprising a cell a6 claimed in Claim 6 containing therewithin a suitable liquid crystal composition.
Claim 9
Independent Claim
31 words
A method of preparing a cell for a liquid crystal display device which comprises the steps of forming upon a suitable supported electrode component an alignment layer comprising a polyphenylene polymer.
Claim 10
Independent Claim
31 words
A method of preparing a cell for a liquid crystal display device which comprises the steps of forming upon a suitable supported electrode component an alignment layer comprising a polyphenylene polymer.
Claim 11
Dependent Claim
35 words
A method as claimed in Claim 8 in which the preparation of the polyphenylene comprises the steps of forming a layer of a polycyclohexadiene upon the electrode component, and aromatising the said polycyclohexadiene to polyphenylene.
References Cited (Backward Citations)
No citation records indexed.
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