Patent GB2194792A successfully refreshed from Google Patents.
GB2194792A
Expired / Lapsed
GB
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Method for the orientation of liquid crystal
Assignee: Werk fuer Fernsehelektronik im VEB Kombinat Mikroelektronik VEB
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Filing: 1987-08-21
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Granted: —
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Expires: 2007-08-21
Abstract
No abstract record available.
Inventors
- 👤 Dr Arno Seeboth
- 👤 Dr Joerg Gloede
- 👤 Dr Hans-Dieter Koswig
- 👤 Dr Horst Ladwig
- 👤 Hartwin Obernik
- 👤 Dr Helmuth Seeboth
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-01 23:29
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133711; G02F1/133719
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
44 words
Method for the orientation of liquid crystals on substrate surfaces, characterized in that a matrix is applied onto the substrate surface as orientation layer, to the functional groups of which matrix thermotropic liquid crystals are bound, partly before the application onto the substrate surface,
Claim 2
Dependent Claim
44 words
Method for the orientation of liquid crystals on substrate surfaces, characterized in that a matrix is applied onto the substrate surface as orientation layer, to the functional groups of which matrix thermotropic liquid crystals are bound, partly before the application onto the substrate surface,
Claim 3
Dependent Claim
25 words
Method according to Claim 1, characterized in that a hydrocarbon polymer, which can also 25 possess hetero-atoms in the polymer chain, is used as matrix.
Claim 4
Dependent Claim
28 words
Method according to Claim 1, characterized in that an organosilane of the general type x,,SiR4-nt with Hhydrolysable group (halogen, alcoxy group etc.) R=organofunctional residue is used as matrix.
Claim 5
Dependent Claim
26 words
Method according to Claim 1, characterized in that the matrix is bound to the substrate surface by a firm chemical homopolar bond-or via a bond-promoting agent.
Claim 6
Dependent Claim
24 words
Method according to Claim 2, characterized in that a copolymer of maleic acid or of maleic acid anhydride is used as hydrocarbon polymer matrix.
Claim 7
Dependent Claim
24 words
Method according to Claim 2, characterized in that a copolymer of acrylic acid or of acrylic acid anhydride is used as hydrocarbon polymer matrix.
Claim 8
Dependent Claim
25 words
Method according to Claim 2, characterized in that a copolymer of methacrylic acid or of 40 methacrylic acid anhydride is used as hydrocarbon polymer matrix.
Claim 9
Dependent Claim
20 words
Method according to Claim 2, characterized in that a polymer of only one monomer is used as hydrocarbon polymer matrix.
Claim 10
Dependent Claim
13 words
Method accoroing to Claim 2, characterized in that polyvinylalcohol is used as matrix.
Claim 11
Dependent Claim
24 words
Method according to Claim 1, characterized in that liquid crystals constituting nematic, discotic, cholesterinic, smectic and/or chiral smectic c-phases are bound to the matrix.
Claim 12
Dependent Claim
26 words
Method according to Claim 1, characterized in that reactive colouring substances are chemically bound additionally to 1%-30%, preferably 2%-4%, of the functional groups of the matrix.
Claim 13
Dependent Claim
70 words
Method for the orientation of liquid crystals on substrate surfaces as claimed in Claim 1 50 substantially as described in any one of the examples disclosed herein. Published 1988 at The Patent Office, State House, 66/71 High Holborn, London WC 1 R 4TP. Further copies may be obtained from The Patent Office, Sales Branch, St Mary Cray, Orpington, Kent BR5 3RD. Printed by Burgess & Son (Abingdon) Ltd. Con. 1/87.
References Cited (Backward Citations)
No citation records indexed.
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