US5594569A
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US
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Liquid-crystal electro-optical apparatus and method of manufacturing the same
Assignee: Semiconductor Energy Laboratory Co Ltd
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Filing: 1994-07-20
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Granted: 1997-01-14
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Expires: 2014-07-20
Abstract
Abstract A liquid crystal device comprising: a pair of substrates having an electrode arrangement thereon; an orientation control means provided on at least one of said substrates; and a ferroelectric or antiferroelectric liquid crystal layer interposed between said substrates, said liquid crystal layer being uniaxially oriented by virtue of said orientation control means, wherein means for suppressing an orientation control effect of said orientation control means with respect to said liquid crystal layer is provided between said liquid crystal layer and said orientation control means.
Inventors
- 👤 Toshimitsu Konuma
- 👤 Takeshi Nishi
- 👤 Michio Shimizu
- 👤 Harumi Mori
- 👤 Kouji Moriya
- 👤 Satoshi Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:37
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/137; G02F1/139; G02F1/141; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133711; G02F1/13378; G02F1/133788; G02F1/1416
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
92 words
A liquid crystal device comprising: a pair of substrates having an electrode arrangement thereon; an orientation control means provided on at least one of said substrates; and a liquid crystal layer interposed between said substrates, said liquid crystal layer being uniaxially oriented by virtue of said orientation control means, wherein means, comprising a resin, for decreasing an orientation regulating force of said orientation control means with respect to said liquid crystal layer is provided between said liquid crystal layer and said orientation control means in the form of a plurality of grains.
Claim 2
Dependent Claim
92 words
A liquid crystal device comprising: a pair of substrates having an electrode arrangement thereon; an orientation control means provided on at least one of said substrates; and a liquid crystal layer interposed between said substrates, said liquid crystal layer being uniaxially oriented by virtue of said orientation control means, wherein means, comprising a resin, for decreasing an orientation regulating force of said orientation control means with respect to said liquid crystal layer is provided between said liquid crystal layer and said orientation control means in the form of a plurality of grains.
Claim 3
Dependent Claim
19 words
The liquid crystal device of claim 1 wherein said liquid crystal layer comprises a ferroelectric or antiferroelectric liquid crystal.
Claim 4
Dependent Claim
28 words
The liquid crystal device of claim 1 wherein said resin is interposed between said liquid crystal layer and said orientation control means in the form of a film.
Claim 5
Dependent Claim
21 words
The liquid crystal device of claim 1 wherein the resin partially isolates the orientation control means from the liquid crystal layer.
Claim 6
Dependent Claim
17 words
The device of claim 1 wherein a diameter of the grains is not larger than 500 nm.
Claim 7
Dependent Claim
16 words
The device of claim 1 wherein an interval between the substrates is 1 to 10 μm.
Claim 8
Dependent Claim
75 words
A liquid crystal device comprising: a liquid crystal layer; and a pair of supports for supporting said liquid crystal layer therebetween, each having at least a base plate and an electrode arrangement formed thereon, at least one of said supports having an orientation control means provided thereon, wherein a resin is interposed between said liquid crystal layer and an inner most surface of each of said supports in the form of a plurality of grains.
Claim 9
Dependent Claim
75 words
A liquid crystal device comprising: a liquid crystal layer; and a pair of supports for supporting said liquid crystal layer therebetween, each having at least a base plate and an electrode arrangement formed thereon, at least one of said supports having an orientation control means provided thereon, wherein a resin is interposed between said liquid crystal layer and an inner most surface of each of said supports in the form of a plurality of grains.
Claim 10
Dependent Claim
15 words
The liquid crystal device of claim 7 wherein said resin is a UV cured resin.
Claim 11
Dependent Claim
17 words
The liquid crystal device of claim 7 wherein said liquid crystal layer comprises a ferroelectric liquid crystal.
Claim 12
Dependent Claim
17 words
The liquid crystal device of claim 7 wherein said liquid crystal layer comprises an antiferroelectric liquid crystal.
Claim 13
Dependent Claim
17 words
The liquid crystal device of claim 7 wherein said resin is in the form of a film.
Claim 14
Dependent Claim
30 words
The liquid crystal device of claim 7 wherein said resin partially isolates the orientation control means from the liquid crystal layer (is in the form of a plurality of grains].
Claim 15
Dependent Claim
16 words
The liquid crystal device of claim 7 wherein said orientation control means is a rubbing film.
Claim 16
Dependent Claim
17 words
The device of claim 7 wherein a diameter of the grains is not larger than 500 nm.
Claim 17
Dependent Claim
16 words
The device of claim 7 wherein an interval between the supports is 1 to 10 μm.
Claim 18
Dependent Claim
71 words
A liquid crystal device comprising: a pair of substrates, at least one of which is transparent; an electrode arrangement formed on said substrates; at least one uniaxial orientation control means provided over one of said substrates; and a liquid crystal layer interposed between said substrates, wherein a resin is formed at least between said uniaxial orientation control means and said liquid crystal layer in the form of a plurality of grains.
Claim 19
Dependent Claim
71 words
A liquid crystal device comprising: a pair of substrates, at least one of which is transparent; an electrode arrangement formed on said substrates; at least one uniaxial orientation control means provided over one of said substrates; and a liquid crystal layer interposed between said substrates, wherein a resin is formed at least between said uniaxial orientation control means and said liquid crystal layer in the form of a plurality of grains.
Claim 20
Dependent Claim
25 words
The liquid crystal device of claim 16 further comprising a plurality of TFTs in the form of a matrix to drive said liquid crystal layer.
Claim 21
Dependent Claim
15 words
The liquid crystal device of claim 16 wherein said device is a simple matrix device.
Claim 22
Dependent Claim
17 words
The liquid crystal device of claim 16 wherein said uniaxial orientation control means is a rubbing layer.
Claim 23
Dependent Claim
17 words
The device of claim 16 wherein a diameter of the grains is not larger than 500 nm.
Claim 24
Dependent Claim
16 words
The device of claim 16 wherein an interval between the substrates is 1 to 10 μm.
Claim 25
Dependent Claim
17 words
The device of claim 16 wherein the liquid crystal layer comprises a ferroelectric or antiferroelectric liquid crystal.
Claim 26
Dependent Claim
19 words
The device of claim 16 wherein the resin partially isolates the orientation control means from the liquid crystal layer.
Claim 27
Dependent Claim
113 words
A liquid crystal device comprising: a pair of substrates, at least one of which is transparent; an electrode arrangement formed on said substrates, defining a plurality of pixels; a plurality of thin film transistors formed on one of said substrates for driving said pixels; a uniaxial orientation control film formed on at least one of said substrates; a liquid crystal layer; and a resin provided between said substrates and in direct contact with said liquid crystal layer in the form of a plurality of grains, wherein said plurality of pixels are driven by a frame gradation display method in which transmitting and non-transmitting of each pixel is controlled with a plurality of frames.
Claim 28
Dependent Claim
113 words
A liquid crystal device comprising: a pair of substrates, at least one of which is transparent; an electrode arrangement formed on said substrates, defining a plurality of pixels; a plurality of thin film transistors formed on one of said substrates for driving said pixels; a uniaxial orientation control film formed on at least one of said substrates; a liquid crystal layer; and a resin provided between said substrates and in direct contact with said liquid crystal layer in the form of a plurality of grains, wherein said plurality of pixels are driven by a frame gradation display method in which transmitting and non-transmitting of each pixel is controlled with a plurality of frames.
Claim 29
Dependent Claim
36 words
The liquid crystal device of claim 24 wherein an orientation direction of liquid crystal molecules in said liquid crystal layer is capable of changing continuously in accordance with a strength of an electric field applied thereto.
Claim 30
Dependent Claim
27 words
The liquid crystal device of claim 24 wherein said liquid crystal layer does not form a helical structure in the absence of an electric field applied thereto.
Claim 31
Dependent Claim
60 words
The liquid crystal device of claim 24 wherein a voltage is applied to one of said pixels for a certain duration during one frame, said duration being selected from the group consisting T 0 , 2T 0 , 2 2 T 0 --2 N T 0 where "N" is a natural number and "T 0 " is a constant value.
Claim 32
Dependent Claim
17 words
The device of claim 24 wherein a diameter of the grains is not larger than 500 nm.
Claim 33
Dependent Claim
16 words
The device of claim 24 wherein an interval between the substrates is 1 to 10 μm.
Claim 34
Dependent Claim
17 words
The device of claim 24 wherein the liquid crystal layer comprises a ferroelectric or antiferroelectric liquid crystal.
Claim 35
Dependent Claim
19 words
The device of claim 24 wherein the resin partially isolates the orientation control means from the liquid crystal layer.
Claim 36
Dependent Claim
132 words
A liquid crystal device comprising: a pair of substrates, at least one of which is transparent; an electrode arrangement formed on said substrates, defining a plurality of pixels; a plurality of thin film transistors formed on one of said substrates for driving said pixels; a liquid crystal layer interposed between said substrates; and a uniaxial orientation control film formed on at least one of said substrates, wherein a helical structure of said liquid crystal is eliminated when applying no voltage thereto and an orientation direction of molecules of said liquid crystal layer is gradually changed in response to a strength of an electric field applied thereto, wherein a resin is formed at least between the uniaxial orientation control film and the liquid crystal layer in the form of a plurality of grains.
Claim 37
Dependent Claim
132 words
A liquid crystal device comprising: a pair of substrates, at least one of which is transparent; an electrode arrangement formed on said substrates, defining a plurality of pixels; a plurality of thin film transistors formed on one of said substrates for driving said pixels; a liquid crystal layer interposed between said substrates; and a uniaxial orientation control film formed on at least one of said substrates, wherein a helical structure of said liquid crystal is eliminated when applying no voltage thereto and an orientation direction of molecules of said liquid crystal layer is gradually changed in response to a strength of an electric field applied thereto, wherein a resin is formed at least between the uniaxial orientation control film and the liquid crystal layer in the form of a plurality of grains.
Claim 38
Dependent Claim
17 words
The device of claim 32 wherein a diameter of the grains is not larger than 500 nm.
Claim 39
Dependent Claim
16 words
The device of claim 32 wherein an interval between the substrates is 1 to 10 m.
Claim 40
Dependent Claim
17 words
The device of claim 32 wherein the liquid crystal layer comprises a ferroelectric or antiferroelectric liquid crystal.
Claim 41
Dependent Claim
19 words
The device of claim 32 wherein the resin partially isolates the orientation control means from the liquid crystal layer.
Claim 42
Dependent Claim
83 words
A liquid crystal device comprising: a liquid crystal layer; and a pair of supports for supporting said liquid crystal layer therebetween, each having at least a base plate and an electrode arrangement formed thereon, at least one of said supports having an orientation control means provided thereon, wherein a plurality of grains comprising a resin are interposed between said liquid crystal layer and an inner most surface of each of said supports, a diameter of said grains being not larger than 500 nm.
Claim 43
Dependent Claim
83 words
A liquid crystal device comprising: a liquid crystal layer; and a pair of supports for supporting said liquid crystal layer therebetween, each having at least a base plate and an electrode arrangement formed thereon, at least one of said supports having an orientation control means provided thereon, wherein a plurality of grains comprising a resin are interposed between said liquid crystal layer and an inner most surface of each of said supports, a diameter of said grains being not larger than 500 nm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-01-14 | 2000-07-15 | 2001-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-14 | 2004-07-15 | 2005-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-14 | 2008-07-15 | 2009-01-14 | $7700.00 | Window Closed / Lapsed |