US5724111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflective LCD having a light scattering means formed on an electrode side surface of a counter substrate
Assignee: Vista Peak Ventures LLC
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Filing: 1996-06-12
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Granted: 1998-03-03
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Expires: 2016-06-12
Abstract
Abstract In a reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, and a liquid crystal layer sandwiched between the reflector and the transparent electrode, a convex-concave surface is provided at the side of the second insulative plate. With this arrangement, a desired light scattering characteristics is realized with a high image quality and a high brightness, with neither a fuzziness of displayed characters nor a double image. On the other hand, since no thin film transistor is formed at the side of the second insulative plate, the convex-concave surface can be simply formed with no necessity of depositing an insulating film covering the thin film transistor and patterning the deposited insulating film.
Inventors
- 👤 Eishi Mizobata
- 👤 Hidenori Ikeno
- 👤 Hiroshi Kanoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:28
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133553; G02F1/133504; G02F1/13356; G02F1/133562; G02F1/133565; G02F1/137; G02F1/13725; G02F2203/00; G02F2203/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, said first and second insulative plates being assembled in such a manner that said reflector opposes to said transparent electrode, separately from each other, and a liquid crystal layer sandwiched between said reflector and said transparent electrode, wherein said reflector has a planar reflecting surface, and a light scattering means is provided at said second insulative plate wherein said light scattering means comprises a convex-concave surface formed on a transparent electrode side surface of said second insulative plate.
Claim 2
Dependent Claim
99 words
A reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, said first and second insulative plates being assembled in such a manner that said reflector opposes to said transparent electrode, separately from each other, and a liquid crystal layer sandwiched between said reflector and said transparent electrode, wherein said reflector has a planar reflecting surface, and a light scattering means is provided at said second insulative plate wherein said light scattering means comprises a convex-concave surface formed on a transparent electrode side surface of said second insulative plate.
Claim 3
Dependent Claim
24 words
A reflective liquid crystal display claimed in claim 1, and said transparent electrode is formed on said convex-concave surface of said second insulative plate.
Claim 4
Dependent Claim
34 words
A reflective liquid crystal display claimed in claim 2 wherein said convex-concave surface of said second insulative plate is covered with a planarizing film, and said transparent electrode is formed on said planarizing film.
Claim 5
Dependent Claim
109 words
A reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, said first and second insulative plates being assembled in such a manner that said reflector opposes said transparent electrode, separately from each other, and a liquid crystal layer sandwiched between said reflector and said transparent electrode, wherein said reflector has a planar reflecting surface, and light scattering means is provided at said second insulative plate wherein said light scattering means comprises a light scattering film coated on a transparent electrode side surface of said second insulative plate, and said transparent electrode is formed on said light scattering film.
Claim 6
Dependent Claim
109 words
A reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, said first and second insulative plates being assembled in such a manner that said reflector opposes said transparent electrode, separately from each other, and a liquid crystal layer sandwiched between said reflector and said transparent electrode, wherein said reflector has a planar reflecting surface, and light scattering means is provided at said second insulative plate wherein said light scattering means comprises a light scattering film coated on a transparent electrode side surface of said second insulative plate, and said transparent electrode is formed on said light scattering film.
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) | 2001-03-02 | 2001-09-01 | 2002-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-02 | 2005-09-01 | 2006-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-02 | 2009-09-01 | 2010-03-03 | $7700.00 | Window Closed / Lapsed |