Patent US2990019A successfully refreshed from Google Patents.
Patent US4295711A successfully refreshed from Google Patents.
US4295711A
Expired / Lapsed
US
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Liquid crystal display device
Assignee: Hitachi Ltd
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Filing: 1979-08-22
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Granted: 1981-10-20
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Expires: 1999-08-22
Abstract
Abstract In order to provide a good connection to external circuitry for a liquid crystal display device, electrode terminals provided on a substrate of the device are connected to lead terminals formed on a flexible sheet in alignment with the arrangement of the electode terminals through an elongated planar hot-melt binder layer. Electrically conductive islands penetrating through the thickness of the binder layer are formed to be in alignment with the electrode terminals. Thus, in such a structure, good connection is attained between the display device and an external circuit through the lead terminals.
Inventors
- 👤 Hironari Tanaka
- 👤 Shigeru Matsuyama
- 👤 Tadashi Ishibashi
- 👤 Kiyoshige Kinugawa
- 👤 Yukihiro Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:44
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/36; H05K3/361; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0367; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09709; H05K2201/10; H05K2201/10613; H05K2201/10954; H05K2201/10977; H05K2203/00; H05K2203/11; H05K2203/1189; H05K3/22; H05K3/24; H05K3/245; H05K3/30; H05K3/303; H05K3/305; H05K3/32; H05K3/321
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
A liquid crystal display device comprising: a liquid crystal portion disposed between upper and lower substrates, a plurality of electrode terminals provided on said upper substrate, insulating binder material connected to said electrode terminals and including electrically conductive islands penetrating through said insulating binder material, and a plurality of lead electrodes provided on a sheet, wherein said insulating binder material bonds said electrode terminals to said lead electrodes with said lead electrodes connected through said electrically conductive islands to said plurality of electrode terminals.
Claim 2
Dependent Claim
84 words
A liquid crystal display device comprising: a liquid crystal portion disposed between upper and lower substrates, a plurality of electrode terminals provided on said upper substrate, insulating binder material connected to said electrode terminals and including electrically conductive islands penetrating through said insulating binder material, and a plurality of lead electrodes provided on a sheet, wherein said insulating binder material bonds said electrode terminals to said lead electrodes with said lead electrodes connected through said electrically conductive islands to said plurality of electrode terminals.
Claim 3
Dependent Claim
75 words
A liquid crystal display device according to claim 1 wherein said binder material takes the form of an elongated planar hot-melt binder layer the electrically conductive islands of which are disposed in alignment with the arrangement of said electrode terminals, said sheet is a flexible sheet, and said lead electrodes are disposed in alignment with the arrangement of said electrode terminals and adapted to connect therethrough said liquid crystal display device to an external circuit.
Claim 4
Dependent Claim
41 words
A liquid crystal display device according to claim 1 wherein said plurality of electrodes are disposed in a zigzag line in such a manner that they alternately deviate in the direction perpendicular to that along the arrangement of said electrode terminals.
Claim 5
Dependent Claim
31 words
A liquid crystal display device according to claim 2 wherein said electrically conductive islands comprise the same material as said hot-melt binder, containing more than 10% in volume of silver powder.
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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |