US5317433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image display device with a transistor on one side of insulating layer and liquid crystal on the other side
Assignee: Canon Inc
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Filing: 1992-12-01
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Granted: 1994-05-31
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Expires: 2012-12-01
Abstract
Abstract Variations in the individual liquid crystal cells and cross-talk between adjacent pixels are reduced, stable operation is maintained and the aperture and the S/N ratio are increased by providing a transistor and an interconnection layer therefor on one surface of an insulating layer while providing an electrode for applying a voltage to a liquid crystal on the other surface thereof. One major electrode portion of the transistor and the liquid crystal voltage applying electrode are connected to each other using an electrode via an opening. Also, the electrode for connecting the major electrode portion 3 to the liquid crystal voltage applying electrode is provided on the other surface of the insulating layer such that it shield the transistor from light.
Inventors
- 👤 Mamoru Miyawaki
- 👤 Shigeki Kondo
- 👤 Yoshio Nakamura
- 👤 Tetsunobu Kouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:12
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13454; G02F1/1335; G02F1/133509; G02F1/133512; G02F2201/00; G02F2201/48; G02F2202/00; G02F2202/10; G02F2202/105; H; H10; H10D; H10D86/00; H10D86/01; H10D86/021; H10D86/0214; H10D86/40; H10D86/60; H10P; H10P72/00; H10P72/70; H10P72/74; H10P72/7432
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
111 words
A liquid crystal image display device, comprising: an insulating layer or base having two surface sides; liquid crystal material; a transistor and an interconnection layer for said transistor on one surface side of said insulating layer or base; a liquid crystal voltage applying electrode for applying a voltage to said liquid crystal material on the other surface side of said insulating layer or base, wherein one of major electrode portions of said transistor and said liquid crystal voltage applying electrode are connected to each other with an electrode on the other surface side of said insulating layer that it shields the transistor from light through an opening in said insulating layer.
Claim 2
Dependent Claim
111 words
A liquid crystal image display device, comprising: an insulating layer or base having two surface sides; liquid crystal material; a transistor and an interconnection layer for said transistor on one surface side of said insulating layer or base; a liquid crystal voltage applying electrode for applying a voltage to said liquid crystal material on the other surface side of said insulating layer or base, wherein one of major electrode portions of said transistor and said liquid crystal voltage applying electrode are connected to each other with an electrode on the other surface side of said insulating layer that it shields the transistor from light through an opening in said insulating layer.
Claim 3
Dependent Claim
34 words
The image display device according to claim 1, wherein the electrode for electrically connecting said major electrode portion to said liquid crystal voltage applying electrode is embedded in the opening in said insulating layer.
Claim 4
Dependent Claim
37 words
The image display device according to claim 1, wherein a first transparent electrode is connected to the major electrode portion, and a second transparent electrode is formed on said first transparent electrode with an insulating layer therebetween.
Claim 5
Dependent Claim
29 words
The image display device according to claim 1, further comprising a protective member which is provided on said insulating layer or base of said transistor through an adhesive layer.
Claim 6
Dependent Claim
23 words
The image display device according to claim 1, further comprising a resin layer provided on said insulating layer or base of said transistor.
Claim 7
Dependent Claim
18 words
The image display device according to claim 4, wherein said protective member is an organic or inorganic material.
Claim 8
Dependent Claim
17 words
The image display device according to claim 6, wherein said inorganic material is glass or quartz glass.
Claim 9
Dependent Claim
15 words
The image display device according to claim 6, wherein said organic material is a resin.
Claim 10
Dependent Claim
20 words
The image display device according to claim 8, wherein said resin material is polyethylene, polycarbonate, acrylic resins or polyvinyl chloride.
Claim 11
Dependent Claim
97 words
A liquid crystal image display device, comprising a pixel of liquid crystal material; a thin-film transistor for driving said pixel; and a driving interconnection for driving said thin-film transistor, said thin film transistor and driving interconnection being provided on one surface of an insulating layer film, said display device further comprising a display electrode connected to a drain region of said thin-film transistor provided on the other surface of said insulating layer film with a storage capacitor electrode provided immediately above a connection area between the drain region of said thin film transistor and said display electrode.
Claim 12
Dependent Claim
97 words
A liquid crystal image display device, comprising a pixel of liquid crystal material; a thin-film transistor for driving said pixel; and a driving interconnection for driving said thin-film transistor, said thin film transistor and driving interconnection being provided on one surface of an insulating layer film, said display device further comprising a display electrode connected to a drain region of said thin-film transistor provided on the other surface of said insulating layer film with a storage capacitor electrode provided immediately above a connection area between the drain region of said thin film transistor and said display electrode.
Claim 13
Dependent Claim
30 words
The image display device according to claim 10, further comprising a light-blocking layer on the other surface of said insulating film immediately below a channel region of said thin-film transistor.
Claim 14
Dependent Claim
30 words
The image display device according to claim 10, further comprising an electrode provided on the other surface of said insulating film immediately below a channel region of said thin-film transistor.
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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) | 1997-05-30 | 1997-11-29 | 1998-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-30 | 2001-11-29 | 2002-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-30 | 2005-11-29 | 2006-05-31 | $7700.00 | Window Closed / Lapsed |