US4688074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connecting structure for a display device
Assignee: Citizen Watch Co Ltd
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Filing: 1985-12-13
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Granted: 1987-08-18
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Expires: 2005-12-13
Abstract
Abstract A connecting structure for a liquid crystal cell having a pair of glasses including a substrate glass, a liquid crystal material between the glasses, and a number of terminals provided on the substrate glass and electrically connected with display dots formed by the liquid crystal material. An LSI used in the display device has a plurality of terminals corresponding to the terminals on the substrate glass. The LSI is held by a holding plate in a predetermined position and the terminals of the LSI are pressed against the terminals on the substrate glass.
Inventors
- 👤 Yoshio Iinuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:23
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1053; H05K7/1061; H10; H10W; H10W90/00; H10W90/701; H10W90/721; H10W90/724
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
272 words
A connecting assembly comprising: a liquid crystal display device having a first front glass substrate, a second back glass substrate overlying said first front glass substrate, a liquid crystal material provided between said first and second glass substrates, said first front glass substrate having a peripheral portion which extends on three sides thereof beyond a periphery of said second back glass substrate; a plurality of terminals provided on an upper surface of said first glass substrate on said peripheral portion of said substrate which extends beyond the periphery of said second glass substrate in a matrix arrangement at a pitch between 300 and 500 μm; a plurality of leads provided on said upper surface of said first front glass substrate, electrically connecting said liquid crystal display device with said terminals; a holding member secured on said peripheral portion of said first glass substrate surrounding said terminals; a LSI semiconductor having a plurality of terminals superimposed over and corresponding to said plurality of terminals on said upper surface of said first glass substrate, said LSI semiconductor held by said holding member; an elastic plate mounted on said LSI semiconductor and corresponding holding member having an upper surface substantially flush with an upper surface of said second glass substrate; a back plate mounted on the respective upper surfaces of said elastic plate and said second glass substrate; and a detachable clamping means for pressing said back plate respectively against said elastic plate and second glass substrate whereby said terminals of said LSI semiconductor are pressed against said corresponding terminals of said liquid crystal display device on said upper surface of said first glass substrate.
Claim 2
Dependent Claim
272 words
A connecting assembly comprising: a liquid crystal display device having a first front glass substrate, a second back glass substrate overlying said first front glass substrate, a liquid crystal material provided between said first and second glass substrates, said first front glass substrate having a peripheral portion which extends on three sides thereof beyond a periphery of said second back glass substrate; a plurality of terminals provided on an upper surface of said first glass substrate on said peripheral portion of said substrate which extends beyond the periphery of said second glass substrate in a matrix arrangement at a pitch between 300 and 500 μm; a plurality of leads provided on said upper surface of said first front glass substrate, electrically connecting said liquid crystal display device with said terminals; a holding member secured on said peripheral portion of said first glass substrate surrounding said terminals; a LSI semiconductor having a plurality of terminals superimposed over and corresponding to said plurality of terminals on said upper surface of said first glass substrate, said LSI semiconductor held by said holding member; an elastic plate mounted on said LSI semiconductor and corresponding holding member having an upper surface substantially flush with an upper surface of said second glass substrate; a back plate mounted on the respective upper surfaces of said elastic plate and said second glass substrate; and a detachable clamping means for pressing said back plate respectively against said elastic plate and second glass substrate whereby said terminals of said LSI semiconductor are pressed against said corresponding terminals of said liquid crystal display device on said upper surface of said first glass substrate.
Claim 3
Dependent Claim
21 words
The connecting assembly according to claim 1, wherein each of said terminals of said LSI semiconductor is formed as a projection.
Claim 4
Dependent Claim
39 words
The connecting assembly according to claim 1, wherein said elastic plate comprises a rubber plate, said back plate covers the entire display device and said clamping means is a frame for holding the respective components of said assembly together.
Claim 5
Dependent Claim
36 words
The connecting assembly according to claim 1, further including a pressure-conductive rubber disposed between said terminals of said LSI semiconductor and terminals on said substrate so as to electrically connect said corresponding terminals with each other.
Claim 6
Dependent Claim
17 words
The connecting assembly according to claim 1, further including means for shielding said LSI semiconductor against light.
Claim 7
Dependent Claim
24 words
The connecting assembly according to claim 1, wherein said holding member is a plastic plate provided with an opening for housing said LSI semiconductor.
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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) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |