Patent US4335936A successfully refreshed from Google Patents.
US4335936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix electrode structure in a multi-layer matrix type liquid crystal display
Assignee: Sharp Corp
•
Filing: 1978-10-12
•
Granted: 1982-06-22
•
Expires: 1998-10-12
Abstract
Abstract A multi-layer, matrix type liquid crystal display panel is provided with an electrode structure which prevents the display dots from being overlapped with each other. Each of display patterns is provided through the utilization of a necessary number of line electrodes and a necessary number of column electrodes. According to the present invention, at least a necessary number of the line electrodes per display pattern unit are disposed as a single family in the front side cell or in the rear side cell. The respective families of the line electrodes are disposed alternatively in the front cell or in the rear cell, keeping the display dots within the same display pattern from being overlapped with respect to each other.
Inventors
- 👤 Keisaku Nonomura
- 👤 Hisashi Uede
- 👤 Tomio Wada
- 👤 Toshiaki Takamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:51
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1347; G02F1/1343; G02F1/134309; G02F1/134336
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
171 words
A multilayer matrix type liquid crystal display having front and rear major surfaces, comprising: a first liquid crystal cell including a first plurality of column electrodes and a first group of row electrodes oriented substantially perpendicular to said first plurality of column electrodes, all of the row electrodes in said first liquid crystal cell being arranged within a first area and collectively defining said first group of row electrodes; and a second liquid crystal cell stacked over said first liquid crystal cell and including a second plurality of column electrodes and a second group of row electrodes oriented substantially perpendicular to said second plurality of column electrodes, all of the row electrodes in said second liquid crystal cell being arranged within a second area and collectively defining said second group of row electrodes, the first area and the second area, defining the first group of row electrodes and the second group of row electrodes, respectively, not overlapping in a direction substantially perpendicular to the major surfaces of said liquid crystal display.
Claim 2
Dependent Claim
171 words
A multilayer matrix type liquid crystal display having front and rear major surfaces, comprising: a first liquid crystal cell including a first plurality of column electrodes and a first group of row electrodes oriented substantially perpendicular to said first plurality of column electrodes, all of the row electrodes in said first liquid crystal cell being arranged within a first area and collectively defining said first group of row electrodes; and a second liquid crystal cell stacked over said first liquid crystal cell and including a second plurality of column electrodes and a second group of row electrodes oriented substantially perpendicular to said second plurality of column electrodes, all of the row electrodes in said second liquid crystal cell being arranged within a second area and collectively defining said second group of row electrodes, the first area and the second area, defining the first group of row electrodes and the second group of row electrodes, respectively, not overlapping in a direction substantially perpendicular to the major surfaces of said liquid crystal display.
Claim 3
Dependent Claim
39 words
A multilayer matrix type liquid crystal display in accordance with claim 1 wherein each of said first and second plurality of column electrodes is disposed approximately equi-distant from each other within the first and second liquid crystal cells, respectively.
References Cited (Backward Citations)
US3588225A
Cited
US4231640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |