US4772100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal display device having circuit boards extending along segment and column electrode directions
Assignee: Oki Electric Industry Co Ltd
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Filing: 1987-10-06
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Granted: 1988-09-20
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Expires: 2007-10-06
Abstract
Abstract In a liquid crystal display device comprising a substantially rectangular liquid crystal display panel having segment electrodes provided along a first edge thereof and common electrodes provided along a second edge thereof orthogonal to the first edge, a segment circuit board extends along the first edge and is electrically connected with the segment electrodes, and a common circuit board extends along the second edge and is electrically connected with the common electrodes.
Inventors
- 👤 Hideo Suenaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:06
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H05; H05K; H05K1/00; H05K1/02; H05K1/14; H05K1/147; H05K3/00; H05K3/30; H05K3/32; H05K3/325
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
68 words
A liquid crystal display device comprising a substantially rectangular crystal display panel having segment electrodes provided along a first edge thereof and common electrodes provided along a second edge thereof orthogonal to the first edge, a segment circuit board extending along the first edge and electrically connected with the segment electrodes, and a common circuit board extending along the second edge and electrically connected with the common electrodes.
Claim 2
Dependent Claim
68 words
A liquid crystal display device comprising a substantially rectangular crystal display panel having segment electrodes provided along a first edge thereof and common electrodes provided along a second edge thereof orthogonal to the first edge, a segment circuit board extending along the first edge and electrically connected with the segment electrodes, and a common circuit board extending along the second edge and electrically connected with the common electrodes.
Claim 3
Dependent Claim
71 words
A liquid crystal display device according to claim 1, wherein the segment electrodes on the liquid crystal panel are formed on a surface of the liquid crystal panel facing the segment circuit board, terminals corresponding to the segment electrodes are formed on the segment circuit board at the respectively confronting positions, and the segment electrodes and the corresponding terminals are electrically connected by a resilient interconnector interposed in a compressed state.
Claim 4
Dependent Claim
32 words
A liquid crystal display device according to claim 1, wherein one end of the segment circuit board and one end of the common circuit board are superimposed and fixed to each other.
Claim 5
Dependent Claim
33 words
A liquid crystal display device according to claim 1, wherein the segment circuit board has segment driver circuit elements mounted thereon and the common circuit board has common driver circuit elements mounted thereon.
Claim 6
Dependent Claim
65 words
A liquid crystal display device according to claim 1, wherein segment electrodes are also provided along a third edge of the liquid crystal display panel parallel with the first edge, an additional segment circuit board is provided to extend along the third edge, and one end of the segment circuit board along the third edge is superimposed with and fixed to the common circuit board.
Claim 7
Dependent Claim
95 words
A liquid crystal display device according to claim 1 further comprising a frame having a frame front part having an opening, a frame side part extending backward from the edges of the frame front part, tugs protruding backward from the rear ends of the frame side part, and nails extending from the side edges of the tugs toward the interior of the liquid crystal display panel and abutting the rear surfaces of the segment circuit board to hold the segment circuit board and the liquid crystal panel between the nails and the frame front part.
Claim 8
Dependent Claim
27 words
A liquid crystal display device according to claim 1, wherein the common circuit board is disposed closer to the liquid crystal panel than the segment circuit board.
Claim 9
Dependent Claim
46 words
A liquid crystal display device according to claim 7, further comprising a control circuit board on the side of the segment circuit board opposite to the common circuit board, one end of the control circuit board being superimposed with the segment circuit board and fixed thereto.
Claim 10
Dependent Claim
34 words
A liquid crystal display device according to claim 8 whereint the control circuit board has control circuit elements mounted thereon, and is electrically connected with the segment circuit board and the common circuit board.
Claim 11
Dependent Claim
28 words
A liquid crystal display device according to claim 1 further comprising a tape connector interconnecting the common electrodes of the liquid crystal panel and the common circuit board.
References Cited (Backward Citations)
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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) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |