US5282070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal device with separate aperature masks and conductor blocking separations
Assignee: Canon Inc
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Filing: 1992-10-23
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Granted: 1994-01-25
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Expires: 2012-10-23
Abstract
Abstract A liquid crystal device with little crosstalk and improved contrast is obtained by using an electrode plate including a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film. The second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe at a separating position, which is covered by the first metal film.
Inventors
- 👤 Naoya Nishida
- 👤 Kazuya Ishiwata
- 👤 Tatsuo Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:46
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
179 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film.
Claim 2
Dependent Claim
179 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film.
Claim 3
Dependent Claim
203 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe.
Claim 4
Dependent Claim
203 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe.
Claim 5
Dependent Claim
206 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 6
Dependent Claim
206 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 7
Dependent Claim
230 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 8
Dependent Claim
230 words
An electrode plate, comprising: a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 9
Dependent Claim
201 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film.
Claim 10
Dependent Claim
201 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film.
Claim 11
Dependent Claim
17 words
A liquid crystal device according to claim 5, wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 12
Dependent Claim
225 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe.
Claim 13
Dependent Claim
225 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; and the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe.
Claim 14
Dependent Claim
17 words
A liquid crystal device according to claim 7, wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 15
Dependent Claim
228 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 16
Dependent Claim
228 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, and the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 17
Dependent Claim
17 words
A liquid crystal device according to claim 9, wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 18
Dependent Claim
252 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 19
Dependent Claim
252 words
A liquid crystal device, comprising: a pair of electrode plates, and a liquid crystal disposed between the electrode plates; wherein one of the electrode plates comprises a substrate, a plurality of transparent conductor stripes disposed on the substrate, a plurality of elongated metal films each disposed at least one side of and electrically connected with one of the conductor stripes so as to form a transparent region and an opaque region of a conductor stripe, and a second metal film for light-shielding disposed on the substrate so as to be electrically insulated from the conductor stripes with an insulating film disposed between the second metal film and the conductor stripes; wherein the second metal film is separated into a plurality of discrete masking parts each in the form of a frame leaving an aperture; the plurality of discrete masking parts are disposed so that plural masking parts among them are disposed along one conductor stripe so as to form plural apertures along the transparent region of the conductor stripe, the masking parts disposed along one conductor stripe are separated from masking parts disposed along an adjacent conductor stripe by a separation which is covered by the first metal film, and a spacing between said one conductor stripe and said adjacent conductor stripe is covered by the masking parts disposed along said adjacent conductor stripe; and a color filter comprising a plurality of segments is disposed to cover the plurality of masking parts so that each segment corresponds to one of the apertures.
Claim 20
Dependent Claim
17 words
A liquid crystal device according to claim 11, wherein said liquid crystal is a ferroelectric liquid crystal.
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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) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |