US4183629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic optical display device and method of manufacturing the same
Assignee: Citizen Watch Co Ltd
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Filing: 1977-07-14
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Granted: 1980-01-15
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Expires: 1997-07-14
Abstract
Abstract An electronic optical display device comprising two substrates and an electronic optical substance sealed in a gap formed between said substrates and displaying when an electric voltage is applied thereto is disclosed. The device comprises two upper and lower substrates which are the same in plane configuration and a lead electrode extending along the side surface of said substrates and is most suitable for use in a thin type digital watch.
Inventors
- 👤 Katsuo Nishimura
- 👤 Hisao Wakabayashi
- 👤 Takatoshi Osaka
- 👤 Kazunari Kume
- 👤 Yasuhiro Ogura
- 👤 Yukio Miya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:07
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/13; G02F1/1303; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; G04; G04G; G04G9/00; G04G9/0023; G04G9/0029; G04G9/0035
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
154 words
An electro-optical display device comprising (a) a first substrate having at least one side and a face perpendicular to said side; (b) a second substrate having at least one side and a face and having the same size and configuration as said first substrate, the face of said second substrate mounted opposite the face of said first substrate thereby forming a gap therebetween; (c) an electro-optical substance sealed within the gap formed between said substrates; (d) a first electrode attached to the face of said first substrate between said first substrate and said electro-optical substance; (e) a second electrode opposing said first electrode and attached to the face of said second substrate between said second substrate and said electro-optical substance; (f) a lead electrode connected to said first electrode and mounted to and extending along said at least one side of said first substrate; and (g) an insulating, protective film covering said lead electrode.
Claim 2
Dependent Claim
154 words
An electro-optical display device comprising (a) a first substrate having at least one side and a face perpendicular to said side; (b) a second substrate having at least one side and a face and having the same size and configuration as said first substrate, the face of said second substrate mounted opposite the face of said first substrate thereby forming a gap therebetween; (c) an electro-optical substance sealed within the gap formed between said substrates; (d) a first electrode attached to the face of said first substrate between said first substrate and said electro-optical substance; (e) a second electrode opposing said first electrode and attached to the face of said second substrate between said second substrate and said electro-optical substance; (f) a lead electrode connected to said first electrode and mounted to and extending along said at least one side of said first substrate; and (g) an insulating, protective film covering said lead electrode.
Claim 3
Dependent Claim
28 words
The electro-optical display device of claim 1 wherein said second substrate is transparent and has a thickness less than 0.5 mm, said second electrode being a common electrode.
Claim 4
Dependent Claim
26 words
The electro-optical display device of claim 1 wherein said protective film is formed on a peripheral edge of said first substrate inclusive of said lead electrode.
Claim 5
Dependent Claim
22 words
The electro-optical display device of claim 3 wherein said protective film is formed at a lower surface portion of said first substrate.
Claim 6
Dependent Claim
16 words
The electro-optical display device of claim 1 wherein said protective film is screen printed epoxy resin.
Claim 7
Dependent Claim
14 words
The electro-optical display device of claim 1 wherein said protective film is sprayed Teflon.
Claim 8
Dependent Claim
15 words
The electro-optical display device of claim 1 wherein said protective film is a painted varnish.
Claim 9
Dependent Claim
171 words
An electro-optical display device comprising: (a) a first substrate having at least one side and a face perpendicular to said side; (b) a second substrate having at least one side and a face and having the same size and configuration as said first substrate, the face of said second substrate mounted opposite the face of said first substrate thereby forming a gap therebetween; (c) an electro-optical substance sealed within the gap formed between said substrates; (d) a first electrode attached to the face of said first substrate between said first substrate and said electro-optical substance; (e) a second electrode opposing said first electrode and attached to the face of said second substrate between said second substrate and said electro-optical substance; (f) a lead electrode connected to said first electrode and mounted to and extending along said at least one side of said first substrate; and (g) said first substrate further including a plurality of grooves in said at least one side thereof, said lead electrode located at least within said grooves.
Claim 10
Dependent Claim
171 words
An electro-optical display device comprising: (a) a first substrate having at least one side and a face perpendicular to said side; (b) a second substrate having at least one side and a face and having the same size and configuration as said first substrate, the face of said second substrate mounted opposite the face of said first substrate thereby forming a gap therebetween; (c) an electro-optical substance sealed within the gap formed between said substrates; (d) a first electrode attached to the face of said first substrate between said first substrate and said electro-optical substance; (e) a second electrode opposing said first electrode and attached to the face of said second substrate between said second substrate and said electro-optical substance; (f) a lead electrode connected to said first electrode and mounted to and extending along said at least one side of said first substrate; and (g) said first substrate further including a plurality of grooves in said at least one side thereof, said lead electrode located at least within said grooves.
Claim 11
Dependent Claim
46 words
The electro-optical display device of claim 8 wherein said grooves have a triangular shape and are spaced apart from each other by a small pitch thereby forming a side surface between adjacent grooves and said lead electrode is mounted on the side surface between adjacent grooves.
Claim 12
Dependent Claim
23 words
The electro-optical display device of claim 8 wherein said grooves have a semi-circular shape and said lead electrode is located within said groove.
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) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |