US4902103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color liquid-crystal display unit with electrodes interleaved in vertical and horizontal directions
Assignee: Koito Manufacturing Co Ltd
•
Filing: 1988-08-10
•
Granted: 1990-02-20
•
Expires: 2008-08-10
Abstract
Abstract A color liquid crystal display unit having improved resolution with good color mixing and little directivity. The display unit includes upper and lower light-transmissible substrates disposed in opposition to one another, scanning and signal electrodes formed on opposed surfaces of the substrates, color filters formed at a predetermined repetition interval on the signal electrodes, and a liquid crystal enclosed between the upper and lower substrates. At least one of the signal electrodes is divided into plural portions, and at least a portion of another signal electrode is interleaved therewith.
Inventors
- 👤 Kazuyuki Miyake
- 👤 Atsuhiko Murata
- 👤 Yuji Yoshimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:12
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/1343; G02F1/134309; G02F1/134336; G02F1/134345; G02F2201/00; G02F2201/52
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A color liquid-crystal display unit comprising: upper and lower light-transmissible substrates disposed in opposition to each other; a plurality of scanning and signal electrodes formed in a matrix pattern on said upper and lower substrates on respective surfaces thereof opposing one another; color filters for predetermined colors formed at a predetermined repetition interval on at least one of upper and lower surfaces of said signal electrodes, intersecting portions of said scanning and signal electrodes on which said color filters are formed defining picture elements, in each of said picture elements a first of said signal electrodes having portions interleaved with a second of said signal electrodes in both horizontal and vertical directions; and a liquid crystal enclosed between said upper and lower substrates.
Claim 2
Dependent Claim
123 words
A color liquid-crystal display unit comprising: upper and lower light-transmissible substrates disposed in opposition to each other; a plurality of scanning and signal electrodes formed in a matrix pattern on said upper and lower substrates on respective surfaces thereof opposing one another; color filters for predetermined colors formed at a predetermined repetition interval on at least one of upper and lower surfaces of said signal electrodes, intersecting portions of said scanning and signal electrodes on which said color filters are formed defining picture elements, in each of said picture elements a first of said signal electrodes having portions interleaved with a second of said signal electrodes in both horizontal and vertical directions; and a liquid crystal enclosed between said upper and lower substrates.
Claim 3
Dependent Claim
33 words
The color liquid-crystal display unit of claim 1, wherein said first electrode has substantially a U shape in each of said picture elements with said second electrode interposed between sides of the U.
Claim 4
Dependent Claim
26 words
The color liquid-crystal display unit of claim 2, wherein said second electrode in each of said picture elements has first and second portions of different widths.
Claim 5
Dependent Claim
57 words
The color liquid-crystal display unit of claim 1, wherein said second electrode in each of said picture elements has first and second portions of different widths, said first electrode having first and second separated portions, said second electrode in each of said picture elements being interposed between said first and second separated portions of said first electrode.
Claim 6
Dependent Claim
29 words
The color liquid-crystal display unit of claim 4, wherein said second electrode has relatively wide end portions and a relatively narrow central portion joining said relatively wide end portions.
Claim 7
Dependent Claim
29 words
The color liquid-crystal display unit of claim 4, wherein said second electrode has relatively narrow end portions and a relatively wide central portion joining said relatively wide end portions.
Claim 8
Dependent Claim
30 words
The color liquid-crystal display unit of claim 4, wherein said one end of said second electrode is relatively narrow and the other end of said second electrode is relatively wide.
References Cited (Backward Citations)
JPS5417049A
Cited
US4389095A
Cited
JPS57165819A
Cited
US4778257A
Cited
US4579424A
Cited
JPS59222877A
Cited
JPS61102627A
Cited
JPS61267004A
Cited
JPS6258219A
Cited
US4697886A
Cited
US4712874A
Cited
US4805994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |