US5066110A
Expired / Lapsed
US
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Liquid crystal display apparatus
Assignee: Sharp Corp
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Filing: 1989-12-22
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Granted: 1991-11-19
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Expires: 2009-12-22
Abstract
Abstract A liquid crystal display apparatus comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of the pair of substrates, a function element electrically connected to each of the picture element electrodes, and a liquid crystal layer charged between the pair of substrates, wherein the display apparatus further comprises on one of the substrate, an insulating protective film made of inorganic nitrides or inorganic oxides the insulating protective film being formed on the picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of the insulating protective film and window region, the orientation film has been rubbing-processed, whereby the occurrence of an internal polarization phenomenon can be prevented when a polyimide resin is used for the orientation film.
Inventors
- 👤 Shigeaki Mizushima
- 👤 Eiichiro Nishimura
- 👤 Seiji Fukami
- 👤 Ryuji Hashimoto
- 👤 Hisato Nagatomi
- 👤 Michihisa Onishi
- 👤 Mitunobo Miyamoto
- 👤 Shoji Mitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:52
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1333; G02F1/133345; G02F1/1337; G02F1/133711; G02F1/133397
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
123 words
A liquid crystal display apparatus comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between said pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulating protective film made of an inorganic nitride, said insulating protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction.
Claim 2
Dependent Claim
123 words
A liquid crystal display apparatus comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between said pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulating protective film made of an inorganic nitride, said insulating protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction.
Claim 3
Dependent Claim
34 words
A liquid crystal display apparatus according to claim 1, wherein said window region is made elongate in configuration, thereby defining a lengthwise direction of said window region which substantially coincides with said first direction.
Claim 4
Dependent Claim
138 words
A liquid crystal display apparatus, comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between said pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulating protective film made of an inorganic nitride, said insulating protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polymide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction, wherein a plurality of window regions are provided on each of said picture element electrodes.
Claim 5
Dependent Claim
138 words
A liquid crystal display apparatus, comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between said pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulating protective film made of an inorganic nitride, said insulating protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polymide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction, wherein a plurality of window regions are provided on each of said picture element electrodes.
Claim 6
Dependent Claim
34 words
A liquid crystal display apparatus according to claim 3, wherein said window region is made elongate in configuration, thereby defining a lengthwise direction of said window region which substantially coincides with said first direction.
Claim 7
Dependent Claim
114 words
A liquid crystal display apparatus comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between said pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulting protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction.
Claim 8
Dependent Claim
114 words
A liquid crystal display apparatus comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between said pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulting protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction.
Claim 9
Dependent Claim
32 words
A liquid crystal display apparatus according to claim 5, wherein said window regions are made elongate in configuration, thereby defining lengthwise direction of said window regions which substantially coincide with said direction.
Claim 10
Dependent Claim
138 words
A liquid crystal display apparatus, comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between sai pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulating protective film made of an inorganic oxide, said insulating protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction, wherein a plurality of window regions are provided on each of said picture element electrodes.
Claim 11
Dependent Claim
138 words
A liquid crystal display apparatus, comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of said substrates, a function element electrically connected to each of said picture element electrodes, and a liquid crystal layer charged between sai pair of substrates, wherein said display apparatus further comprises on one said substrate, an insulating protective film made of an inorganic oxide, said insulating protective film being formed on said picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of said insulating protective film and window region, wherein said orientation film has been rubbing-processed in a first direction, wherein a plurality of window regions are provided on each of said picture element electrodes.
Claim 12
Dependent Claim
32 words
A liquid crystal display apparatus according to claim 7, wherein said window regions are made elongate in configuration, thereby defining lengthwise direction of said window regions which substantially coincide with said direction.
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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) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |