US4704559A
Expired / Lapsed
US
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Matrix type multi-color display device
Assignee: Seiko Instruments Inc
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Filing: 1986-09-04
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Granted: 1987-11-03
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Expires: 2006-09-04
Abstract
Abstract A liquid crystal matrix type multi-color display is provided incorporating transistor structure and wherein the display electrodes are energized from the transistor drain circuit in an electroplating both to coat and color the display electrodes.
Inventors
- 👤 Mitsuru Suginoya
- 👤 Koji Iwasa
- 👤 Hitoshi Kamamori
- 👤 Yutaka Sano
- 👤 Yumiko Terada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:58
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133516; G02F1/136; G02F1/1362; G02F1/1368
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
125 words
A matrix type multi-color display device comprising: a matrix of display electrodes 13 each having a transistor 1 deposited on a first substrate 11; a first electrode 7 connected to one terminal of each transistor of each row of transistors and a second electrode 12 connected to another terminal of each transistor of each column of transistors; a counter electrode 5 deposited on a second substrate 6; display material 3 disposed between said matrix of display electrodes and said counter electrode; color filters 2 having different color tones each electrodeposited on said each display electrode 13 from a solution containing polymer and coloring matter by selectively applying voltages to said first and second electrodes so as to apply an electrodeposition voltage to selected display electrode.
Claim 2
Dependent Claim
125 words
A matrix type multi-color display device comprising: a matrix of display electrodes 13 each having a transistor 1 deposited on a first substrate 11; a first electrode 7 connected to one terminal of each transistor of each row of transistors and a second electrode 12 connected to another terminal of each transistor of each column of transistors; a counter electrode 5 deposited on a second substrate 6; display material 3 disposed between said matrix of display electrodes and said counter electrode; color filters 2 having different color tones each electrodeposited on said each display electrode 13 from a solution containing polymer and coloring matter by selectively applying voltages to said first and second electrodes so as to apply an electrodeposition voltage to selected display electrode.
Claim 3
Dependent Claim
154 words
A matrix type multi-color display device comprising: a matrix of transistors 1 deposited on a first substrate 11; a first electrode 7 connected to one terminal of each transistor of each row of transistors and a second electrode 12 connected to another terminal of each transistor of each column of transistors; a counter electrode 5 deposited on a second substrate 6; a matrix of conductive layers 15 each connected to said first electrode (FIG. 6) or second electrode (FIG. 7); color filters 2 having different color tones each electrodeposited on said each conductive layers 15 from a solution containing polymer and coloring matter by selectively applying a electrodeposition voltage to said first electrode or said second electrode; a matrix of display electrodes 13 each disposed on said each color filters 2 and each connected to further terminal of said transistor 1 and display material 3 disposed between said display electrodes and said counter electrode.
Claim 4
Dependent Claim
154 words
A matrix type multi-color display device comprising: a matrix of transistors 1 deposited on a first substrate 11; a first electrode 7 connected to one terminal of each transistor of each row of transistors and a second electrode 12 connected to another terminal of each transistor of each column of transistors; a counter electrode 5 deposited on a second substrate 6; a matrix of conductive layers 15 each connected to said first electrode (FIG. 6) or second electrode (FIG. 7); color filters 2 having different color tones each electrodeposited on said each conductive layers 15 from a solution containing polymer and coloring matter by selectively applying a electrodeposition voltage to said first electrode or said second electrode; a matrix of display electrodes 13 each disposed on said each color filters 2 and each connected to further terminal of said transistor 1 and display material 3 disposed between said display electrodes and said counter electrode.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-02 | 1991-05-04 | 1991-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-02 | 1995-05-04 | 1995-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-02 | 1999-05-04 | 1999-11-03 | $7700.00 | Window Closed / Lapsed |