US4854675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal device having electrode strips in the seal without applied voltage
Assignee: Semiconductor Energy Laboratory Co Ltd
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Filing: 1987-08-07
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Granted: 1989-08-08
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Expires: 2007-08-07
Abstract
Abstract An improved liquid crystal device for display is disclosed. The device is comprised of a pair of substrates on whose insides a number of electrode strips are formed in a matrix. The electrode strips are formed also near the periphery portions of the substrates which are unnecessary for the pixels of the display. By virtue of the excess electrode strips, joining the substrates can be done without special attention to the coincidence of the substrates.
Inventors
- 👤 Shunpei Yamazaki
- 👤 Akira Mase
- 👤 Hiroyuki Sakayori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:25
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/134309; C; C09; C09K; C09K2323/00; C09K2323/04; C09K2323/05; G02F1/1339
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A liquid crystal device comprising: a transparent substrate; a plurality of first normally voltage applied electrode strips provided on said transparent substrate, elongated along a X direction and electrically isolated with respect to each other; an opposed substrate; a plurality of second normally voltage applied electrode strips provided on said opposed substrate, elongated along a Y direction and electrically isolated with respect to each other; a liquid crystal layer disposed between said substrates; and a sealing member for sealing the perimeter of said substrates; said device characterized in that said first and second electrode strips are provided also on the perimeter sealed by said sealing member and wherein said electrode strips that are sealed along the length thereof have no voltage applied thereto.
Claim 2
Dependent Claim
123 words
A liquid crystal device comprising: a transparent substrate; a plurality of first normally voltage applied electrode strips provided on said transparent substrate, elongated along a X direction and electrically isolated with respect to each other; an opposed substrate; a plurality of second normally voltage applied electrode strips provided on said opposed substrate, elongated along a Y direction and electrically isolated with respect to each other; a liquid crystal layer disposed between said substrates; and a sealing member for sealing the perimeter of said substrates; said device characterized in that said first and second electrode strips are provided also on the perimeter sealed by said sealing member and wherein said electrode strips that are sealed along the length thereof have no voltage applied thereto.
Claim 3
Dependent Claim
13 words
A device of claim 1 wherein said device is a liquid crystal display.
Claim 4
Dependent Claim
35 words
A device of claim 2 wherein a plurality of pixels are defined between said first and second electrode strips, each pixel being formed between one of said first strips and one of said second strips.
Claim 5
Dependent Claim
27 words
A device of claim 3 wherein said pixels are formed only between the strips other than those in contact with said sealing member and those adjacent thereto.
Claim 6
Dependent Claim
15 words
A device of claim 1 wherein said sealing member is made of an organic resin.
References Cited (Backward Citations)
US4370194A
Cited
US4412214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-07 | 1993-02-06 | 1993-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-07 | 1997-02-06 | 1997-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-07 | 2001-02-06 | 2001-08-08 | $7700.00 | Window Closed / Lapsed |