US4773737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color display panel
Assignee: Canon Inc
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Filing: 1985-12-09
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Granted: 1988-09-27
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Expires: 2005-12-09
Abstract
Abstract A color display panel comprising a plurality of picture elements arranged in a plurality of rows and a plurality of columns, and a plurality of driving lines disposed substantially along columns of picture elements, each picture element forming a color picture element selected from red picture elements, green picture elements and blue picture elements. Two or three types of color picture elements selected from the red, green and blue picture elements are arranged in a column, and each type of color picture elements among the two or three types of color picture elements arranged in a column are commonly connected to a driving line.
Inventors
- 👤 Koujiro Yokono
- 👤 Tetsuya Kaneko
- 👤 Shinichi Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:29
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H04N3/127; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/136; G02F1/1362; G02F1/1368; G02F2201/00; G02F2201/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
A color display panel, comprising: a plurality of color picture elements arranged in a plurality of rows and a plurality of columns having a plurality of driving lines disposed only along the sides of said columns of color picture elements, wherein each color picture element is selected from the group consisting of red, green and blue picture elements, such that at least two of said color picture elements are arranged within a single column, and each of said color picture elements of each color arranged within said column are commonly connected to a single driving line independently from the other color picture elements.
Claim 2
Dependent Claim
103 words
A color display panel, comprising: a plurality of color picture elements arranged in a plurality of rows and a plurality of columns having a plurality of driving lines disposed only along the sides of said columns of color picture elements, wherein each color picture element is selected from the group consisting of red, green and blue picture elements, such that at least two of said color picture elements are arranged within a single column, and each of said color picture elements of each color arranged within said column are commonly connected to a single driving line independently from the other color picture elements.
Claim 3
Dependent Claim
21 words
The color display panel according to claim 1, wherein said columns of color picture elements are arranged in a staggered fashion.
Claim 4
Dependent Claim
43 words
The color display panel according to claim 1, wherein said driving lines are signal lines and a plurality of scanning lines are disposed along the rows of color picture elements so as to drive the picture elements in cooperation with the signal lines.
Claim 5
Dependent Claim
31 words
The color display panel according to claim 1, wherein each color picture element is provided with a semiconductor switching element and connected to the driving line through the semiconductor switching element.
Claim 6
Dependent Claim
18 words
The color display panel according to claim 4, wherein said semiconductor switching element is a thin film transistor.
Claim 7
Dependent Claim
18 words
The color display panel according to claim 5, wherein said thin film transistor comprises an amorphous semiconductor film.
Claim 8
Dependent Claim
35 words
The color display panel according to claim 1, wherein said color picture element comprises a pair of oppositely spaced electrodes, a liquid crystal disposed between the oppositely spaced electrodes, and a layer of color filters.
Claim 9
Dependent Claim
19 words
The color display panel according to claim 7, wherein said liquid crystal is a twisted nematic type liquid crystal.
Claim 10
Dependent Claim
17 words
The color display panel according to claim 7, wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 11
Dependent Claim
21 words
The color display panel according to claim 7, wherein said layer of color filters is disposed between the oppositely spaced electrodes.
Claim 12
Dependent Claim
27 words
The color display panel according to claim 1, wherein the driving lines disposed along the columns of color picture elements are disposed at a substantially equal pitch.
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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) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |