US4842372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical device having an amorphous silicon resistive element with carbon
Assignee: Seiko Instruments Inc
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Filing: 1988-06-17
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Granted: 1989-06-27
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Expires: 2008-06-17
Abstract
Abstract An electro-optical device comprising: a pair of substrates, at least one of the substrates being light-transmissive; an electro-optical material sandwiched between the substrates; a plurality of electro-optical switching elements disposed on an inner surface of at least one of the substrates, each of the switching elements including a first electrode layer, a non-linear-resistive layer substantially composed of an amorphous material of silicon and carbon and a picture element electrode electrically connected to the first electrode layer through the non-linear-resistive layer; and a second electrode layer disposed on an inner surface of the other substrate to define a plurality of elements between the second electrode layer and the plurality of picture element electrodes for applying a voltage to the electro-optical material in a desired picture element.
Inventors
- 👤 Motoo Toyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:51
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/105; H01C7/118; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/1365
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
126 words
An electro-optical device comprising: a pair of substrates, at least one of the substrates being light-transmissive; an electro-optical material sandwiched between the substrates; a plurality of electro-optical switching elements disposed on an inner surface of at least one of the substrates, each of the switching elements including a first electrode layer, a non-linear-resistive layer substantially composed of an amorphous material of silicon and carbon and a picture element electrode electrically connected to the first electrode layer through the non-linear-resistive layer; and a second electrode layer disposed on an inner surface of the other substrate to define a plurality of picture elements between the second electrode layer and the plurality of picture element electrodes for applying a voltage to the electro-optical material in a desired picture element.
Claim 2
Dependent Claim
126 words
An electro-optical device comprising: a pair of substrates, at least one of the substrates being light-transmissive; an electro-optical material sandwiched between the substrates; a plurality of electro-optical switching elements disposed on an inner surface of at least one of the substrates, each of the switching elements including a first electrode layer, a non-linear-resistive layer substantially composed of an amorphous material of silicon and carbon and a picture element electrode electrically connected to the first electrode layer through the non-linear-resistive layer; and a second electrode layer disposed on an inner surface of the other substrate to define a plurality of picture elements between the second electrode layer and the plurality of picture element electrodes for applying a voltage to the electro-optical material in a desired picture element.
Claim 3
Dependent Claim
15 words
An electro-optical device as claimed in claim 1; wherein the device comprises a display device.
Claim 4
Dependent Claim
17 words
An electro-optical device as claimed in claim 1; wherein the first electrode layer is composed of metal.
Claim 5
Dependent Claim
16 words
An electro-optical device as claimed in claim 1; wherein the electro-optical material comprises a liquid crystal.
Claim 6
Dependent Claim
18 words
An electro-optical device as claimed in claim 1; wherein the device is driven by a multiplex driving method.
Claim 7
Dependent Claim
22 words
An electro-optical device as claimed in claim 1; wherein the atom composition ratio C/Si=x of the amorphous material is as follows, 0.05≦x≦1.5.
Claim 8
Dependent Claim
22 words
An electro-optical device as claimed in claim 1; wherein the atom composition ratio C/Si=x of the amorphous material is as follows, 0.05≦x≦0.9.
Claim 9
Dependent Claim
14 words
An electro-optical device as claimed in claim 1; wherein the non-linear-resistive layer is light-transmissive.
Claim 10
Dependent Claim
19 words
An electro-optical device as claimed in claim 1; wherein the non-linear-resistive layer has a thickness of 500Å to 3000Å.
Claim 11
Dependent Claim
27 words
An electro-optical device as claimed in claim 1; wherein the non-linear-resistive layer is formed by means of low pressure CVD, normal pressure CVD, plasma CVD or sputtering.
Claim 12
Dependent Claim
59 words
A switching device formed on a substrate, comprising: a substrate; and a plurality of electro-optical switching elements on the substrate, each of the switching elements including a first electrode layer, a non-linear-resistive layer substantially composed of an amorphous material of silicon and carbon and a picture element electrode electrically connected to the first electrode layer through the non-linear-resistive layer.
Claim 13
Dependent Claim
59 words
A switching device formed on a substrate, comprising: a substrate; and a plurality of electro-optical switching elements on the substrate, each of the switching elements including a first electrode layer, a non-linear-resistive layer substantially composed of an amorphous material of silicon and carbon and a picture element electrode electrically connected to the first electrode layer through the non-linear-resistive layer.
Claim 14
Dependent Claim
22 words
A switching device as claimed in claim 11; wherein the atom composition ratio C/Si=x of the amorphous material is as follows, 0.05≦x≦1.5.
Claim 15
Dependent Claim
19 words
A switching device as claimed in claim 11; wherein the non-linear-resistive layer has a thickness of 500Å to 3000Å.
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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) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |