Patent US4669828A successfully refreshed from Google Patents.
US4669828A
Expired / Lapsed
US
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Liquid crystal apparatus having concealed conductive paths
Assignee: Tyco International Ltd Bermuda
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Filing: 1984-04-16
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Granted: 1987-06-02
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Expires: 2004-04-16
Abstract
Abstract A liquid crystal apparatus comprising a nematic curvilinearly aligned phases liquid crystal material located between two electrode means. The apparatus includes electrically-conductive, non-transparent paths for energizing said electrode means to apply an electric field across the NCAP liquid crystal, and a coating means for concealing those portions of the conductive paths in a viewing area of the apparatus.
Inventors
- 👤 Robert Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:02
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
134 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to a prescribed input reduces the amount of scattering or absorption; application means for applying said prescribed input; and concealing means coextensive with a portion of the combination of the liquid crystal material and containment means for concealing from view that part of said application means in a viewing area of said liquid crystal apparatus, said concealing means not interfering with the function of said apparatus and having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said prescribed input.
Claim 2
Dependent Claim
134 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to a prescribed input reduces the amount of scattering or absorption; application means for applying said prescribed input; and concealing means coextensive with a portion of the combination of the liquid crystal material and containment means for concealing from view that part of said application means in a viewing area of said liquid crystal apparatus, said concealing means not interfering with the function of said apparatus and having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said prescribed input.
Claim 3
Dependent Claim
30 words
The liquid crystal apparatus of claim 1 wherein said concealing means is a coating that is applied to at least that part of said application means in said viewing area.
Claim 4
Dependent Claim
150 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; electrode means for applying said electric field; an electrically conductive path for energizing said electrode means to apply said electric field; and means for concealing from view that part of said conductive path extending across a viewing area of said liquid crystal apparatus, said concealing means coextensive with a portion of the liquid crystal material and containment means, and said concealing means not interfering with the function of said apparatus and having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said prescribed input.
Claim 5
Dependent Claim
150 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; electrode means for applying said electric field; an electrically conductive path for energizing said electrode means to apply said electric field; and means for concealing from view that part of said conductive path extending across a viewing area of said liquid crystal apparatus, said concealing means coextensive with a portion of the liquid crystal material and containment means, and said concealing means not interfering with the function of said apparatus and having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said prescribed input.
Claim 6
Dependent Claim
177 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; at least two electrode means for applying said electric field wherein the combination of said liquid crystal material and said containment means is located between said electrode means; electrically conductive paths for energizing said electrode means to apply said electric field; and means for coating those parts of said electrically conductive paths extending across a viewing area of said liquid crystal apparatus so as to conceal said parts of said conductive paths, said coating means coextensive with a portion of the combination of said liquid crystal material and said containment means, and said coating means having a color that is substantially the same as the color of the combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 7
Dependent Claim
177 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; at least two electrode means for applying said electric field wherein the combination of said liquid crystal material and said containment means is located between said electrode means; electrically conductive paths for energizing said electrode means to apply said electric field; and means for coating those parts of said electrically conductive paths extending across a viewing area of said liquid crystal apparatus so as to conceal said parts of said conductive paths, said coating means coextensive with a portion of the combination of said liquid crystal material and said containment means, and said coating means having a color that is substantially the same as the color of the combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 8
Dependent Claim
13 words
The liquid crystal apparatus of claim 4 wherein said coating means is opaque.
Claim 9
Dependent Claim
214 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; a first substrate for supporting the combination of said liquid crystal material and said containment means; a first electrode means on said first substrate means for applying said electric field; a second electrode means on a second substrate on the side of the combination of said liquid crystal material and said containment means remote from said first substrate; electrically-conductive, non-transparent paths for energizing said first and second electrode means; and a coating means coextensive with a portion of the combination of said liquid crystal material and said containment means for covering those portions of said conductive paths extending between said first and second substrates so as to conceal from an observer of a display of the apparatus said portions of said conductive paths, said coating means not interfering with the function of said apparatus and having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of an electric field.
Claim 10
Dependent Claim
214 words
A liquid crystal apparatus, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; a first substrate for supporting the combination of said liquid crystal material and said containment means; a first electrode means on said first substrate means for applying said electric field; a second electrode means on a second substrate on the side of the combination of said liquid crystal material and said containment means remote from said first substrate; electrically-conductive, non-transparent paths for energizing said first and second electrode means; and a coating means coextensive with a portion of the combination of said liquid crystal material and said containment means for covering those portions of said conductive paths extending between said first and second substrates so as to conceal from an observer of a display of the apparatus said portions of said conductive paths, said coating means not interfering with the function of said apparatus and having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of an electric field.
Claim 11
Dependent Claim
34 words
The liquid crystal apparatus of claim 6 wherein said coating means is applied to said first substrate on a side thereof remote from the combination of said liquid crystal material and said surface means.
Claim 12
Dependent Claim
36 words
The liquid crystal apparatus of claim 6 wherein said coating means is applied to said first substrate on the side thereof on which the combination of said liquid crystal material and said surface means is supported.
Claim 13
Dependent Claim
34 words
The liquid crystal apparatus of claim 6 wherein said coating means is applied to said second substrate on a side thereof adjacent to the combination of said liquid crystal material and said surface means.
Claim 14
Dependent Claim
160 words
A liquid crystal apparatus display device, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; at least two electrode means for applying said electric field wherein the combination of said liquid crystal material and said containment means is located between said electrode means; electrically conductive, non-transparent paths for energizing said electrode means to apply said electric field; and a coating means coextensive with the combination of said liquid crystal material and said containment means for concealing those portions of said conductive paths in a viewing area of said display device wherein the color of said coating means is substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 15
Dependent Claim
160 words
A liquid crystal apparatus display device, comprising: a liquid crystal material and containment means for inducing a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; at least two electrode means for applying said electric field wherein the combination of said liquid crystal material and said containment means is located between said electrode means; electrically conductive, non-transparent paths for energizing said electrode means to apply said electric field; and a coating means coextensive with the combination of said liquid crystal material and said containment means for concealing those portions of said conductive paths in a viewing area of said display device wherein the color of said coating means is substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 16
Independent Claim
165 words
A method of making a liquid crystal apparatus, comprising: combining a liquid crystal material and containment means with an electrode means wherein said containment means effects the natural liquid crystal structure to induce a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of scattering or absorption; providing at least one electrically conductive path to said electrode means for applying said electric field; and applying a coating coextensive with a portion of the combination of the liquid crystal material and containment means for concealing that part of said conductive path extending across a viewing area of said apparatus from view, said coating means not interfering with the function of said apparatus and having a color that is substantially the same as the color of the combination of the liquid crystal material and the containment means in the absence of said electric field.
Claim 17
Independent Claim
165 words
A method of making a liquid crystal apparatus, comprising: combining a liquid crystal material and containment means with an electrode means wherein said containment means effects the natural liquid crystal structure to induce a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of scattering or absorption; providing at least one electrically conductive path to said electrode means for applying said electric field; and applying a coating coextensive with a portion of the combination of the liquid crystal material and containment means for concealing that part of said conductive path extending across a viewing area of said apparatus from view, said coating means not interfering with the function of said apparatus and having a color that is substantially the same as the color of the combination of the liquid crystal material and the containment means in the absence of said electric field.
Claim 18
Independent Claim
201 words
A method of making a liquid crystal apparatus, comprising: applying a liquid crystal material and containment means to a first electrode means wherein said containment means effects the natural liquid crystal structure to induce a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; applying a second electrode means on the side of said combination of said liquid crystal material and said containment means remote from said first electrode means; extending at least one electrically conductive path to each of said first and second electrode means for applying said electric field; and applying a coating that is coextensive with a portion of said combination of said liquid crystal material and said containment means for concealing from view those portions of said conductive paths extending across a viewing area of said apparatus, said coating means not interfering with the function of said apparatus and having a color that is substantially the same as the color of said combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 19
Independent Claim
201 words
A method of making a liquid crystal apparatus, comprising: applying a liquid crystal material and containment means to a first electrode means wherein said containment means effects the natural liquid crystal structure to induce a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; applying a second electrode means on the side of said combination of said liquid crystal material and said containment means remote from said first electrode means; extending at least one electrically conductive path to each of said first and second electrode means for applying said electric field; and applying a coating that is coextensive with a portion of said combination of said liquid crystal material and said containment means for concealing from view those portions of said conductive paths extending across a viewing area of said apparatus, said coating means not interfering with the function of said apparatus and having a color that is substantially the same as the color of said combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 20
Independent Claim
188 words
A method for making a liquid crystal apparatus, comprising: applying a liquid crystal material and containment means to a first electrode means wherein said containment means effects the natural liquid crystal structure to induce a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; applying a second electrode means on the side of said combination of said liquid crystal material and said containment means remote from said first electrode means; extending at least one electrically-conductive, non-transparent path to each of said first and second electrode means for applying said electric field; and covering those portions of said conductive paths extending through a viewing area of said apparatus with a coating that is coextensive with at least a portion of said combination of said liquid crystal material and said containment means and said coating having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said electric field.
Claim 21
Independent Claim
188 words
A method for making a liquid crystal apparatus, comprising: applying a liquid crystal material and containment means to a first electrode means wherein said containment means effects the natural liquid crystal structure to induce a distorted alignment of said liquid crystal material which in response to such alignment at least one of scatters and absorbs light and which in response to an electric field reduces the amount of such scattering or absorption; applying a second electrode means on the side of said combination of said liquid crystal material and said containment means remote from said first electrode means; extending at least one electrically-conductive, non-transparent path to each of said first and second electrode means for applying said electric field; and covering those portions of said conductive paths extending through a viewing area of said apparatus with a coating that is coextensive with at least a portion of said combination of said liquid crystal material and said containment means and said coating having a color that substantially matches the appearance of the combination of said liquid crystal material and said containment means in the absence of said electric field.
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) | 1990-06-01 | 1990-12-01 | 1991-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-01 | 1994-12-01 | 1995-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-01 | 1998-12-01 | 1999-06-02 | $7700.00 | Window Closed / Lapsed |