Patent US4643531A successfully refreshed from Google Patents.
US4643531A
Expired / Lapsed
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Liquid crystal panel having an organic indium and/or organic zirconium orientation film
Assignee: Canon Inc
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Filing: 1985-02-06
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Granted: 1987-02-17
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Expires: 2005-02-06
Abstract
Abstract A liquid crystal panel comprising base plates, at least one of which is a plastic base plate provided with a transparent electrode, and a liquid crystal interposed between the substrates, is provided by forming an orientation controlling film of a composition comprising an organic indium compound and an organic zirconium compound or of a composition comprising an organic indium compound, a polyester resin and an isocyanate resin on the plastic substrate, or is produced by arranging at least two monoaxially stretched films as the substrates so that their stretched directions are in parallel or in counter-directionally parallel with each other.
Inventors
- 👤 Hiroshi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:49
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/13439; G02F1/133305; G02F1/1337; G02F1/133711; G02F2201/00; G02F2201/54
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
58 words
A liquid crystal panel, comprising a pair of base plates, at least one of which is a plastic base plate, and a liquid crystal disposed between the pair of base plates, said plastic base plate being provided with an orientation controlling film formed by applying thereon a composition comprising an organic indium compound and an organic zirconium compound.
Claim 2
Dependent Claim
58 words
A liquid crystal panel, comprising a pair of base plates, at least one of which is a plastic base plate, and a liquid crystal disposed between the pair of base plates, said plastic base plate being provided with an orientation controlling film formed by applying thereon a composition comprising an organic indium compound and an organic zirconium compound.
Claim 3
Dependent Claim
28 words
The liquid crystal panel according to claim 1, wherein said organic indium compound is a compound represented by the general formula In(OR).sub.3, wherein R is an alkyl group.
Claim 4
Dependent Claim
17 words
The liquid crystal panel according to claim 2, wherein said R is --C 3 H 7 .
Claim 5
Dependent Claim
17 words
The liquid crystal panel according to claim 1, wherein said organic zirconium compound has an alkoxy group.
Claim 6
Dependent Claim
16 words
The liquid crystal panel according to claim 4, wherein said alkoxy group is an isopropoxy group.
Claim 7
Dependent Claim
19 words
The liquid crystal panel according to claim 1, wherein said organic zirconium compound is a zirconium acetylacetonate chelate compound.
Claim 8
Dependent Claim
34 words
The liquid crystal panel according to claim 1, wherein said plastic base plate is formed from a member selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, polyethersulfone, polycarbonate, cellulose triacetate, and polyol.
Claim 9
Dependent Claim
38 words
The liquid crystal panel according to claim 1, wherein said composition constituting said orientation controlling film comprises 1 part by weight of said organic indium compound and 100 to 1000 parts by weight of said organic zirconium compound.
Claim 10
Dependent Claim
38 words
The liquid crystal panel according to claim 1, wherein said composition constituting said orientation controlling film comprises 1 part by weight of said organic indium compound and 500 to 1000 parts by weight of said organic zirconium compound.
Claim 11
Dependent Claim
83 words
A liquid crystal panel, comprising a pair of base plates, at least one of which is a plastic base plate, and a liquid crystal disposed between the pair of base plates, said plastic base plate being provided with an orientation controlling film comprising a first film formed by applying thereon a composition comprising an organic indium compound and an organic zirconium compound, and a second film formed by applying thereon a second composition comprising an organic indium compound or an organic zirconium compound.
Claim 12
Dependent Claim
83 words
A liquid crystal panel, comprising a pair of base plates, at least one of which is a plastic base plate, and a liquid crystal disposed between the pair of base plates, said plastic base plate being provided with an orientation controlling film comprising a first film formed by applying thereon a composition comprising an organic indium compound and an organic zirconium compound, and a second film formed by applying thereon a second composition comprising an organic indium compound or an organic zirconium compound.
Claim 13
Dependent Claim
37 words
The liquid crystal panel according to claim 10, wherein said composition constituting said first film comprises 1 part by weight of said organic indium compound and 10 to 100 parts by weight of said organic zirconium compound.
Claim 14
Dependent Claim
37 words
The liquid crystal panel according to claim 10, wherein said composition constituting said first film comprises 1 part by weight of said organic indium compound and 20 to 50 parts by weight of said organic zirconium compound.
Claim 15
Dependent Claim
34 words
The liquid crystal panel according to claim 10, wherein said organic indium compound constituting said first or second film is a compound represented by the general formula In(OR).sub.3, wherein R is an alkyl group.
Claim 16
Dependent Claim
17 words
The liquid crystal panel according to claim 13, wherein said R is --C 3 H 7 .
Claim 17
Dependent Claim
23 words
The liquid crystal panel according to claim 10, wherein said organic zirconium compound constituting said first or second film has an alkoxy group.
Claim 18
Dependent Claim
16 words
The liquid crystal panel according to claim 15, wherein said alkoxy group is an isopropoxy group.
Claim 19
Dependent Claim
25 words
The liquid crystal panel according to claim 10, wherein said organic zirconium compound constituting said first or second film is a zirconium acetylacetonate chelate compound.
Claim 20
Dependent Claim
60 words
A liquid crystal panel, comprising a pair of base plates, at least one of which is a plastic base plate, and a liquid crystal disposed between the pair of base plates, said plastic base plate being provided with an orientation controlling film formed by applying thereon a composition comprising an organic indium compound, a polyester resin and an isocyanate resin.
Claim 21
Dependent Claim
60 words
A liquid crystal panel, comprising a pair of base plates, at least one of which is a plastic base plate, and a liquid crystal disposed between the pair of base plates, said plastic base plate being provided with an orientation controlling film formed by applying thereon a composition comprising an organic indium compound, a polyester resin and an isocyanate resin.
Claim 22
Dependent Claim
28 words
The liquid crystal panel according to claim 18, wherein said organic indium compound is a compound represented by the general formula In(OR).sub.3, wherein R is an alkyl group.
Claim 23
Dependent Claim
17 words
The liquid crystal panel according to claim 19, wherein said R is --C 3 H 7 .
Claim 24
Dependent Claim
55 words
The liquid crystal panel according to claim 18, wherein said composition constituting said orientation controlling film comprises said organic indium compound (A), polyester resin (B) and isocyanate resin (C) in the weight proportions of A/B/C=5-20/20-100/1-10 with proviso that the amount A is calculated in terms of the corresponding weight of In 2 O 3 .
Claim 25
Dependent Claim
17 words
The liquid crystal panel according to claim 18, wherein said polyester resin is a linear saturated polyester.
Claim 26
Dependent Claim
16 words
The liquid crystal panel according to claim 22, wherein said saturated polyester is a copolymer polyester.
Claim 27
Dependent Claim
34 words
The liquid crystal panel according to claim 18, wherein said plastic base plate is formed from a member selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, polyethersulfone, polycarbonate, cellulose triacetate and polyol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |