EP0368204A2
Expired / Lapsed
EP
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Ferroelectric liquid crystal element
Assignee: Nissan Chemical Corp
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Filing: 1989-11-06
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Granted: —
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Expires: 2009-11-06
Abstract
Abstract A ferroelectric liquid crystal element comprising a pair of sustrates each having a transparent electrode and an orientation controlling film formed on the electrode, and ferroelectric liquid crystal sandwiched between the substrates in contact with the film, wherein said orientation controlling film is an organic polymer film treated by rubbing treatment and capable of giving nematic liquid crystal a pretilt angle of at least 10° to the substrate surface.
Inventors
- 👤 Noriaki Nissan Chemical Industries Ltd. Kohtoh
- 👤 Toyohiko Nissan Chemical Industries Ltd. Abe
- 👤 Hiroyoshi Nissan Chemical Industries Ltd. Fukuro
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 15:15
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133711; C; C09; C09K; C09K19/00; C09K19/02; C09K19/0225; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/22; G02F1/133723; G02F1/133746; G02F1/13378; G02F1/133784
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
69 words
A ferroelectric liquid crystal element comprising a pair of substrates each having a transparent electrode and an orientation controlling film formed on the electrode, and ferroelectric liquid crystal sandwiched between the substrates in contact with the film, wherein said orientation controlling film is an organic polymer film treated by rubbing treatment and capable of giving nematic liquid crystal a pretilt angle of at least 10° to the substrate surface.
Claim 2
Dependent Claim
69 words
A ferroelectric liquid crystal element comprising a pair of substrates each having a transparent electrode and an orientation controlling film formed on the electrode, and ferroelectric liquid crystal sandwiched between the substrates in contact with the film, wherein said orientation controlling film is an organic polymer film treated by rubbing treatment and capable of giving nematic liquid crystal a pretilt angle of at least 10° to the substrate surface.
Claim 3
Dependent Claim
19 words
The ferroelectric liquid crystal element according to Claim 1, wherein the organic polymer film is a polyimide resin film.
Claim 4
Dependent Claim
29 words
The ferroelectric liquid crystal element according to Claim 1, wherein the organic polymer film is capable of giving nematic liquid crystal a pretilt angle of from 15 to 30°.
Claim 5
Dependent Claim
23 words
The ferroelectric liquid crystal element according to Claim 1, wherein the orientation controlling film has a thickness of from 100 to 5,000 Å.
References Cited (Backward Citations)
No citation records indexed.
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