US5699135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflection type liquid crystal display device and method of manufacturing the same
Assignee: Toshiba Corp
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Filing: 1996-12-10
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Granted: 1997-12-16
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Expires: 2016-12-10
Abstract
Abstract A reflecting type liquid crystal display device having, a first substrate provided on one main surface thereof with a first electrode comprising a plurality of pixel electrodes arrayed in a matrix form and a wiring interposed between these pixel electrodes, the first substrate being disposed on an observation side, a second substrate provided on one main surface thereof with a second electrode and disposed to face the first substrate in such a manner that the surface bearing the second electrode faces to the surface bearing the first electrode, a liquid crystal composition layer interposed between the first substrate and the second substrate, and a white reflecting layer formed on a region of the surface of the first substrate where the first electrode is not formed.
Inventors
- 👤 Yuzo Hisatake
- 👤 Ryoichi Watanabe
- 👤 Makiko Sato
- 👤 Hitoshi Hatoh
- 👤 Akio Murayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:02
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133504; G02F1/133509; G02F1/133512; G02F1/133553; G02F1/133526; G02F1/137; G02F1/13725; G02F2203/00; G02F2203/02
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
166 words
A reflecting type liquid crystal display device comprising; a first substrate provided on one main surface thereof with a first electrode and disposed on an observation side; a second substrate provided on one main surface thereof with a second electrode and disposed to face said first substrate in such a manner that said one main surface bearing said second electrode faces to said one main surface bearing said first electrode; a liquid crystal composition layer interposed between said first substrate and said second substrate; a modulation region which corresponds to a region of said first electrode and is capable of modulating the intensity of reflection of incident light in accordance with a response of said liquid crystal composition to a voltage applied to between said first substrate and said second substrate; a non-modulation region occupying a region other than said modulation region; and a white reflecting layer formed on at least a portion of said non-modulation region of any one of surfaces of said first substrate.
Claim 2
Dependent Claim
166 words
A reflecting type liquid crystal display device comprising; a first substrate provided on one main surface thereof with a first electrode and disposed on an observation side; a second substrate provided on one main surface thereof with a second electrode and disposed to face said first substrate in such a manner that said one main surface bearing said second electrode faces to said one main surface bearing said first electrode; a liquid crystal composition layer interposed between said first substrate and said second substrate; a modulation region which corresponds to a region of said first electrode and is capable of modulating the intensity of reflection of incident light in accordance with a response of said liquid crystal composition to a voltage applied to between said first substrate and said second substrate; a non-modulation region occupying a region other than said modulation region; and a white reflecting layer formed on at least a portion of said non-modulation region of any one of surfaces of said first substrate.
Claim 3
Dependent Claim
31 words
The reflecting type liquid crystal display device according to claim 1, wherein said white reflecting layer is mounted on the surface of the first substrate where the first electrode is formed.
Claim 4
Dependent Claim
28 words
The reflecting type liquid crystal display device according to claim 1, wherein said white reflecting layer is formed of a resist material having a white pigment dispersed therein.
Claim 5
Dependent Claim
23 words
The reflecting type liquid crystal display device according to claim 3, wherein said white pigment comprises as a main component TiO 2 .
Claim 6
Dependent Claim
60 words
The reflecting type liquid crystal display device according to claim 1, wherein at least one of the first and the second substrate is provided with a color filter, and said white reflecting layer is formed on a surface of the substrate where said electrode is formed and at a portion of the surface where said color filter is not formed.
Claim 7
Dependent Claim
20 words
The reflecting type liquid crystal display device according to claim 1, wherein said liquid crystal composition contains a dichroic dye.
Claim 8
Dependent Claim
59 words
The reflecting type liquid crystal display device according to claim 1, wherein said liquid crystal composition is a nematic liquid crystal containing a black dye and exhibiting a positive dielectric anisotropy, molecules thereof being homogeneously oriented between the first and the second substrates, and a quarter wavelength plate and a second reflecting plate are mounted on the second substrate.
Claim 9
Dependent Claim
32 words
The reflecting type liquid crystal display device according to claim 1 wherein said white reflecting layer functions as an intersubstrate spacer for controlling the space between the first and the second substrates.
Claim 10
Dependent Claim
131 words
A reflecting type liquid crystal display device comprising; a first substrate provided on one main surface thereof with a first electrode comprising a plurality of pixel electrodes arrayed in a matrix form and a wiring interposed between these pixel electrodes, said first substrate being disposed on an observation side; a second substrate provided on one main surface thereof with a second electrode and disposed to face said first substrate in such a manner that said one main surface bearing said second electrode faces to said one main surface bearing said first electrode; a liquid crystal composition layer interposed between said first substrate and said second substrate; and a white reflecting layer formed on a region of said one main surface of said first substrate where said first electrode is not formed.
Claim 11
Dependent Claim
131 words
A reflecting type liquid crystal display device comprising; a first substrate provided on one main surface thereof with a first electrode comprising a plurality of pixel electrodes arrayed in a matrix form and a wiring interposed between these pixel electrodes, said first substrate being disposed on an observation side; a second substrate provided on one main surface thereof with a second electrode and disposed to face said first substrate in such a manner that said one main surface bearing said second electrode faces to said one main surface bearing said first electrode; a liquid crystal composition layer interposed between said first substrate and said second substrate; and a white reflecting layer formed on a region of said one main surface of said first substrate where said first electrode is not formed.
Claim 12
Dependent Claim
28 words
The reflecting type liquid crystal display device according to claim 9, wherein said white reflecting layer is formed of a resist material having a white pigment dispersed therein.
Claim 13
Dependent Claim
23 words
The reflecting type liquid crystal display device according to claim 10, wherein said white pigment comprises as a main component TiO 2 .
Claim 14
Dependent Claim
20 words
The reflecting type liquid crystal display device according to claim 9, wherein said liquid crystal composition contains a dichroic dye.
Claim 15
Dependent Claim
59 words
The reflecting type liquid crystal display device according to claim 9, wherein said liquid crystal composition is a nematic liquid crystal containing a black dye and exhibiting a positive dielectric anisotropy, molecules thereof being homogeneously oriented between the first and the second substrates, and a quarter wavelength plate and a second reflecting plate are mounted on the second substrate.
Claim 16
Dependent Claim
32 words
The reflecting type liquid crystal display device according to claim 9, wherein said white reflecting layer functions as an intersubstrate spacer for controlling the space between the first and the second substrates.
Claim 17
Independent Claim
108 words
A method of manufacturing a reflecting type liquid crystal display device comprising the steps of; forming a transparent conductive layer on one surface of a first substrate; forming a resist pattern on said transparent conductive layer; forming an electrode pattern by etching said transparent conductive layer with said resist pattern being used as a mask; forming a white layer on a surface of said first substrate on which said electrode pattern and resist pattern are disposed; and forming a white reflecting layer on a region other than where said electrode pattern is formed by removing said resist pattern together with said white layer formed over said resist pattern.
Claim 18
Independent Claim
108 words
A method of manufacturing a reflecting type liquid crystal display device comprising the steps of; forming a transparent conductive layer on one surface of a first substrate; forming a resist pattern on said transparent conductive layer; forming an electrode pattern by etching said transparent conductive layer with said resist pattern being used as a mask; forming a white layer on a surface of said first substrate on which said electrode pattern and resist pattern are disposed; and forming a white reflecting layer on a region other than where said electrode pattern is formed by removing said resist pattern together with said white layer formed over said resist pattern.
Claim 19
Independent Claim
113 words
A method of manufacturing a reflecting type liquid crystal display device comprising the steps of; forming a color layer on one main surface of a first substrate; forming a resist pattern on said transparent conductive layer; forming a color filter pattern comprising said color layer by etching said color layer with said resist pattern being used as a mask; forming a white layer on a surface of said first substrate on which said color filter pattern and resist pattern are disposed; and forming a white reflecting layer on a region other than where said color layer is formed by removing said resist pattern together with said white layer formed over said resist pattern.
Claim 20
Independent Claim
113 words
A method of manufacturing a reflecting type liquid crystal display device comprising the steps of; forming a color layer on one main surface of a first substrate; forming a resist pattern on said transparent conductive layer; forming a color filter pattern comprising said color layer by etching said color layer with said resist pattern being used as a mask; forming a white layer on a surface of said first substrate on which said color filter pattern and resist pattern are disposed; and forming a white reflecting layer on a region other than where said color layer is formed by removing said resist pattern together with said white layer formed over said resist pattern.
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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) | 2000-12-15 | 2001-06-16 | 2001-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-15 | 2005-06-16 | 2005-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-15 | 2009-06-16 | 2009-12-16 | $7700.00 | Window Closed / Lapsed |