Patent US5006840A successfully refreshed from Google Patents.
US5006840A
Expired / Lapsed
US
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Color liquid-crystal display apparatus with rectilinear arrangement
Assignee: Sharp Corp
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Filing: 1989-11-27
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Granted: 1991-04-09
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Expires: 2009-11-27
Abstract
Abstract In a color liquid-crystal display apparatus using mosaic arrangements, the same color of picture elements which are driven by the same signal electrode are alternately arranged right and left. Accordingly, all that is necessary is that the same color of picture signal is applied upon the same signal electrode in spite of the mosaic arrangement. Thus, a circuit which switches a color image signal of an analog line memory is unnecessary so that the driving circuit is extremely simplified.
Inventors
- 👤 Hiroshi Hamada
- 👤 Toshiaki Takamatsu
- 👤 Naofumi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:29
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/13306; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3607; G09G3/3611; G09G3/3648; G02F2201/00; G02F2201/52; G09G2300/00; G09G2300/04; G09G2300/0421; G09G2300/0426; G09G2300/0439; G09G2300/0452; G09G2310/00; G09G2310/02; G09G2310/0264; G09G2310/0297
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A color liquid crystal display apparatus, comprising: a plurality of picture element groups arranged in a matrix, each picture element group including, a plurality of color picture elements each associated with a color corresponding to red, green, or blue; a plurality of scanning electrodes linearly arranged in parallel rows and disposed over said matrix in a first direction; and a plurality of signal electrodes linearly arranged in parallel columns and disposed over said matrix in a second direction perpendicular to said first direction, said picture elements groups being disposed over said scanning electrodes and said signal electrodes such that said color picture elements of each color are linearly arranged at a one pixel element pitch in each row in said first direction and in each column in said second direction and only color picture elements of the same color are connected to each said signal electrode to alleviate the need for a color switching circuit.
Claim 2
Dependent Claim
155 words
A color liquid crystal display apparatus, comprising: a plurality of picture element groups arranged in a matrix, each picture element group including, a plurality of color picture elements each associated with a color corresponding to red, green, or blue; a plurality of scanning electrodes linearly arranged in parallel rows and disposed over said matrix in a first direction; and a plurality of signal electrodes linearly arranged in parallel columns and disposed over said matrix in a second direction perpendicular to said first direction, said picture elements groups being disposed over said scanning electrodes and said signal electrodes such that said color picture elements of each color are linearly arranged at a one pixel element pitch in each row in said first direction and in each column in said second direction and only color picture elements of the same color are connected to each said signal electrode to alleviate the need for a color switching circuit.
Claim 3
Dependent Claim
24 words
The color liquid crystal display apparatus claimed in claim 1, further including a nonlinear element connecting each color picture element to respective scanning electrodes.
Claim 4
Dependent Claim
24 words
The color liquid crystal display apparatus claimed in claim 1, further including a switching element connecting each color picture element to respective scanning electrodes.
Claim 5
Dependent Claim
45 words
An apparatus, as claimed in claim 1, wherein each picture element group is arranged in an "L" configuration consisting of two picture elements disposed over a scan electrode in a first line and one picture element disposed over a scan electrode in a second line.
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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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |