US5289300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing electro-optical devices wherein the electrode is patterned on the modulation layer
Assignee: Semiconductor Energy Laboratory Co Ltd
•
Filing: 1992-02-03
•
Granted: 1994-02-22
•
Expires: 2012-02-03
Abstract
Abstract A method of manufacturing electro-optical devices is described. The method comprises steps of forming a first electrode arrangement on a substrate, coating an electro-optical modulating layer comprising a liquid crystal on the substrate over the first electrode arrangement and forming a second electrode arrangement on the electro-optical modulating layer. The electro-optical modulating layer is prepared by dispersing a liquid crystal in a pre-polymer which can be cured by UV light or other suitable procedures.
Inventors
- 👤 Shunpei Yamazaki
- 👤 Akira Mase
- 👤 Toshiji Hamatani
- 👤 Takeshi Nishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:11
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1334; G02F1/1343; G02F1/13439; G02F1/136; G02F1/1362; G02F1/1365
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
60 words
A method of manufacturing electro-optical devices comprising: forming non-linear semiconductor elements and a first electrode arrangement on a substrate; coating an electro-optical modulating layer comprising a liquid crystal on said substrate over said non-linear semiconductor elements and first electrode arrangement; forming a conductive layer on said electro-optical modulating layer; and patterning said conductive layer to form a second electrode arrangement.
Claim 2
Independent Claim
60 words
A method of manufacturing electro-optical devices comprising: forming non-linear semiconductor elements and a first electrode arrangement on a substrate; coating an electro-optical modulating layer comprising a liquid crystal on said substrate over said non-linear semiconductor elements and first electrode arrangement; forming a conductive layer on said electro-optical modulating layer; and patterning said conductive layer to form a second electrode arrangement.
Claim 3
Dependent Claim
28 words
The method of manufacturing electro-optical devices as claimed in claim 1 wherein said electro-optical modulating layer is prepared by dispersing said liquid crystal in a transparent organic resin.
Claim 4
Dependent Claim
21 words
The method of manufacturing electro-optical devices as claimed in claim 2 wherein said organic resin is a UV light curable resin.
Claim 5
Dependent Claim
18 words
The method of manufacturing electro-optical devices as claimed in claim 2 wherein said organic resin is a pre-polymer.
Claim 6
Dependent Claim
19 words
The method of manufacturing electro-optical devices as claimed in claim 4 further comprising a step of polymerizing said prepolymer.
Claim 7
Dependent Claim
31 words
The method of manufacturing electro-optical devices as claimed in claim 2 wherein said electro-optical modulating layer is prepared by dispersing said liquid crystal in a pre-polymer together with a polymerization initiator.
Claim 8
Dependent Claim
30 words
The method of manufacturing electro-optical devices as claimed in claim 6 further comprising a step of exposing said electro-optical modulating layer to UV light to initiate polymerization of said pre-polymer.
Claim 9
Dependent Claim
30 words
The method of manufacturing electro-optical devices as claimed in claim 1 further comprising a step of forming a protective film on said electro-optical modulating layer over said second electrode arrangement.
Claim 10
Dependent Claim
24 words
The method of manufacturing electro-optical devices as claimed in claim 8 wherein at least one of said substrate and said protective film is transparent.
Claim 11
Dependent Claim
29 words
The method of manufacturing electro-optical devices as claimed in claim 9 wherein said substrate comprises a material selected from the group consisting of an organic material and a glass.
Claim 12
Dependent Claim
41 words
The method of manufacturing electro-optical devices as claimed in claim 1 further comprising steps of: forming another electro-optical modulating layer comprising a liquid crystal on said second electrode arrangement; and forming a third electrode arrangement on said another electro-optical modulating layer.
Claim 13
Dependent Claim
39 words
The method of claim 1 wherein said electro-optical modulating layer is coated by a method selected from the group consisting of screen press printing, offset printing, spinning, spraying, knife coating using a doctor knife, roll coating, and curtain coating.
Claim 14
Dependent Claim
29 words
The method of claim 1 wherein said non-linear elements are selected from the group consisting of a thin film transistor, complementary thin film transistor pair and a MIM element.
Claim 15
Independent Claim
65 words
A method of manufacturing electro-optical devices comprising the steps of: forming on a substrate an electric circuit comprising a switching element and a first electrode arrangement; forming an electro-optical modulating layer comprising a liquid crystal on said electric circuit; forming a transparent conductive oxide layer on said electro-optical modulating layer by sputtering; and patterning said conductive layer in order to form a second electrode arrangement.
Claim 16
Independent Claim
65 words
A method of manufacturing electro-optical devices comprising the steps of: forming on a substrate an electric circuit comprising a switching element and a first electrode arrangement; forming an electro-optical modulating layer comprising a liquid crystal on said electric circuit; forming a transparent conductive oxide layer on said electro-optical modulating layer by sputtering; and patterning said conductive layer in order to form a second electrode arrangement.
Claim 17
Dependent Claim
28 words
The method of manufacturing electro-optical devices as claimed in claim 14 wherein said electro-optical modulating layer is prepared by dispersing said liquid crystal in a transparent organic resin.
Claim 18
Dependent Claim
18 words
The method of manufacturing electro-optical devices as claimed in claim 15 wherein said organic resin is a pre-polymer.
Claim 19
Dependent Claim
19 words
The method of manufacturing electro-optical devices as claimed in claim 16 further comprising a step of polymerizing said pre-polymer.
Claim 20
Dependent Claim
31 words
The method of manufacturing electro-optical devices as claimed in claim 15 wherein said electro-optical modulating layer is prepared by dispersing said liquid crystal in a pre-polymer together with a polymerization initiator.
Claim 21
Dependent Claim
30 words
The method of manufacturing electro-optical devices as claimed in claim 18 further comprising a step of exposing said electro-optical modulating layer to UV light to initiate polymerization of said pre-polymer.
Claim 22
Dependent Claim
20 words
The method of manufacturing electro-optical devices as claimed in claim 14 wherein said switching element comprises a thin film transistor.
Claim 23
Dependent Claim
30 words
The method of manufacturing electro-optical devices as claimed in claim 14 further comprising a step of forming a protective film on said electro-optical modulating layer over said second electrode arrangement.
Claim 24
Dependent Claim
41 words
The method of manufacturing electro-optical devices as claimed in claim 14 further comprising steps of: forming another electro-optical modulating layer comprising a liquid crystal on said second electrode arrangement; and forming a third electrode arrangement on said another electro-optical modulating layer.
Claim 25
Dependent Claim
39 words
The method of claim 14 wherein said electro-optical modulating layer is coated by a method selected from the group consisting of screen press printing, offset printing, spinning, spraying, knife coating using a doctor knife, roll coating, and curtain coating.
Claim 26
Dependent Claim
29 words
The method of claim 14 wherein said non-linear elements are selected from the group consisting of a thin film transistor, complementary thin film transistor pair and a MIM element.
Claim 27
Dependent Claim
17 words
The method of claim 14 further comprising annealing said transparent conductive oxide layer in an oxidizing atmosphere.
Claim 28
Independent Claim
79 words
A method for forming an electro-optical device comprising the steps of: forming an electrode arrangement and active elements in the form of a matrix on a substrate; applying an electro-optical modulating layer comprising a mixture of a liquid crystal and an organic transparent material on said substrate; forming a second electrode layer on said electro-optical modulating layer; patterning said second electrode layer to form a second electrode arrangement; and forming a protective coating directly on said second electrode arrangement.
Claim 29
Independent Claim
79 words
A method for forming an electro-optical device comprising the steps of: forming an electrode arrangement and active elements in the form of a matrix on a substrate; applying an electro-optical modulating layer comprising a mixture of a liquid crystal and an organic transparent material on said substrate; forming a second electrode layer on said electro-optical modulating layer; patterning said second electrode layer to form a second electrode arrangement; and forming a protective coating directly on said second electrode arrangement.
Claim 30
Dependent Claim
13 words
The method of claim 26 wherein said protective coating comprises a silicon resin.
Claim 31
Independent Claim
85 words
A method for forming an electro-optical device comprising the steps of: forming an electrode arrangement and active elements in the form of a matrix on a substrate; applying an electro-optical modulating layer comprising a mixture of a liquid crystal and an organic transparent material on said substrate; forming a second electrode layer on said electro-optical modulating layer; and patterning said second electrode layer to form a second electrode arrangement; wherein said active elements comprises metal-insulator-metal elements where the insulator comprises Si x C y (x+y=1).
Claim 32
Independent Claim
85 words
A method for forming an electro-optical device comprising the steps of: forming an electrode arrangement and active elements in the form of a matrix on a substrate; applying an electro-optical modulating layer comprising a mixture of a liquid crystal and an organic transparent material on said substrate; forming a second electrode layer on said electro-optical modulating layer; and patterning said second electrode layer to form a second electrode arrangement; wherein said active elements comprises metal-insulator-metal elements where the insulator comprises Si x C y (x+y=1).
Claim 33
Dependent Claim
14 words
The method of claim 28 wherein said insulator is not thicker than 2000 Å.
References Cited (Backward Citations)
US4688900A
Cited
US5208686A
Cited
US5168380A
Cited
JPS6228712A
Cited
US4697331A
Cited
US4834509A
Cited
US5015074A
Cited
US5150232A
Cited
US4961630A
Cited
US5128785A
Cited
US5022750A
Cited
JPH03166515A
Cited
US5151802A
Cited
US5136404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |