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Patent US4466701A successfully refreshed from Google Patents.
US4466701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly reliable electrooptical device and process for manufacturing the same
Assignee: Kyocera Display Corp
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Filing: 1982-07-12
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Granted: 1984-08-21
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Expires: 2002-07-12
Abstract
Abstract A highly reliable electrooptical device comprises a pair of electrode plates facing each other with a space and sealed along their periphery by a sealing material to form a cell and an electrooptical material sealed in the cell. The device is characterized in that a protective layer of an electrically conductive material comprising electrically conductive particles and a binder is coated on each lead terminal extending outside the sealing material and the protective layer is partially embedded in the sealing material.
Inventors
- 👤 Satoshi Ogata
- 👤 Hideyuki Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:06
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/0102; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/15; G02F1/153; G02F1/155; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A highly reliable electrooptical device comprising a pair of electrode plates facing each other with a space and sealed along their periphery by a sealing material to form a cell and an electrooptical material sealed in the cell, characterized in that a protective layer of an electrically conductive material comprising electrically conductive particles and a binder is coated on each lead terminal extending outside the sealing material and the protective layer is partially embedded in the sealing material.
Claim 2
Dependent Claim
78 words
A highly reliable electrooptical device comprising a pair of electrode plates facing each other with a space and sealed along their periphery by a sealing material to form a cell and an electrooptical material sealed in the cell, characterized in that a protective layer of an electrically conductive material comprising electrically conductive particles and a binder is coated on each lead terminal extending outside the sealing material and the protective layer is partially embedded in the sealing material.
Claim 3
Dependent Claim
39 words
The highly reliable electrooptical device according to claim 1 wherein the protective layer of the electrically conductive material is embedded in the sealing material to an extent of not more than 50% of the width of the sealing material.
Claim 4
Dependent Claim
17 words
The highly reliable electrooptical device according to claim 1 wherein the electrically conductive particles are carbon particles.
Claim 5
Dependent Claim
25 words
The highly reliable electrooptical device according to claim 1 which is a highly reliable liquid crystal display device wherein said electrooptical material is liquid crystal.
Claim 6
Dependent Claim
127 words
A process for manufacturing a highly reliable electrooptical device comprising: (a) a step of printing an electrically conductive paste comprising electrically conductive particles and a binder on a lead terminal of one of a pair of base plates with an electrode and the lead terminal, (b) a step of printing a sealing material on a predetermined position of the other base plate with an electrode, (c) a step of assemblying and pressing the two base plates to form a cell, and (d) a step of sealing an electrooptical material in a cell gap, wherein said electrically conductive paste and said sealing material are printed in a relative positional relationship such that when the cell is formed, said electrically conductive paste is partially embedded in said sealing material.
Claim 7
Dependent Claim
127 words
A process for manufacturing a highly reliable electrooptical device comprising: (a) a step of printing an electrically conductive paste comprising electrically conductive particles and a binder on a lead terminal of one of a pair of base plates with an electrode and the lead terminal, (b) a step of printing a sealing material on a predetermined position of the other base plate with an electrode, (c) a step of assemblying and pressing the two base plates to form a cell, and (d) a step of sealing an electrooptical material in a cell gap, wherein said electrically conductive paste and said sealing material are printed in a relative positional relationship such that when the cell is formed, said electrically conductive paste is partially embedded in said sealing material.
Claim 8
Dependent Claim
21 words
The process for manufacturing a highly reliable electrooptical device according to claim 5 wherein the electrically conductive particles are carbon particles.
Claim 9
Dependent Claim
35 words
The process for manufacturing a highly reliable electrooptical device according to claim 5 wherein the step of assemblying and pressing the two base plates is carried out before the electrically conductive paste is completely hardened.
Claim 10
Dependent Claim
23 words
The process for manufacturing a highly reliable liquid crystal display device according to claim 5 wherein said electrooptical material is a liquid crystal.
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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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |