US4727285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device and printed circuit board
Assignee: Sharp Corp
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Filing: 1985-07-05
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Granted: 1988-02-23
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Expires: 2005-07-05
Abstract
Abstract A PC board consisting of a conductive layer laid through an insulating layer on a metal plate surface is easily bendable to make any desirable shape. This permits any desired distance to be provided between the display element and the PC board. In addition, it is possible to form display element-fixing angles integrally with the PC board. As a result, the number of components required is decreased and production efficiency improved. Moreover, the metal plate of the PC board protects the display device from unnecessary radiation, external noises and/or static electricity.
Inventors
- 👤 Koki Taniguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; G09; G09F; G09F9/00; H; H05; H05K; H05K1/00; H05K1/02; H05K1/0284; H05K3/00; H05K3/30; H05K3/32; H05K3/325; G02F1/133308; G02F1/133334; H05K1/03; H05K1/05; H05K1/056; H05K1/18; H05K1/189; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0314; H05K2201/09; H05K2201/09818; H05K2201/0999; H05K2203/00; H05K2203/30; H05K2203/302
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
122 words
A display device comprising: a printed circuit board with a conductive layer mounted on an insulating layer, said insulating layer being mounted on a metal plate surface, said printed circuit board having a lateral end bent upwardly to form a first horizontal portion located at one elevation, a vertical portion, and a second horizontal portion located at a different elevation than said first horizontal portion; a display element extending above said second horizontal portion of said printed circuit board, said display element having an end mounted on said first horizontal portion; and a space defined by opposed surfaces of the display element and said second horizontal portion of said printed circuit board, said space permitting back light illumination for said display element.
Claim 2
Dependent Claim
122 words
A display device comprising: a printed circuit board with a conductive layer mounted on an insulating layer, said insulating layer being mounted on a metal plate surface, said printed circuit board having a lateral end bent upwardly to form a first horizontal portion located at one elevation, a vertical portion, and a second horizontal portion located at a different elevation than said first horizontal portion; a display element extending above said second horizontal portion of said printed circuit board, said display element having an end mounted on said first horizontal portion; and a space defined by opposed surfaces of the display element and said second horizontal portion of said printed circuit board, said space permitting back light illumination for said display element.
Claim 3
Dependent Claim
27 words
A display device according to claim 1, comprising driving circuit elements for driving said display element, said driving circuit elements being mounted on said printed circuit board.
Claim 4
Dependent Claim
24 words
A display device according to claim 2, wherein said driving circuit elements are mounted on said second horizontal portion of said printed circuit board.
Claim 5
Dependent Claim
21 words
A display device according to claim 1, wherein said insulating layer of said printed circuit board is made of glass epoxy.
Claim 6
Dependent Claim
17 words
A display device according to claim 1, wherein said display element is a liquid crystal display element.
Claim 7
Dependent Claim
173 words
A display device comprising: a printed circuit board with a conductive layer mounted on an insulating layer, said insulating layer being mounted on a metal plate surface, said printed circuit board having a first lateral end bent upwardly to form a first horizontal portion located at one elevation, a vertical portion, and a second horizontal portion located at a different elevation than said first horizontal portion, said printed circuit board having a second lateral end portion bent upwardly to form a second vertical portion and a third horizontal portion located at approximately the same elevation as the first horizontal portion of said printed circuit board; a display element extending above the second horizontal portion of said printed circuit board, said display element having a first and second end mounted respectively on said first and third horizontal portions of said printed circuit board; and a space defined by opposed surfaces of the display element and said second horizontal portion of said printed circuit board, said space permitting back light illumination for said display element.
Claim 8
Dependent Claim
173 words
A display device comprising: a printed circuit board with a conductive layer mounted on an insulating layer, said insulating layer being mounted on a metal plate surface, said printed circuit board having a first lateral end bent upwardly to form a first horizontal portion located at one elevation, a vertical portion, and a second horizontal portion located at a different elevation than said first horizontal portion, said printed circuit board having a second lateral end portion bent upwardly to form a second vertical portion and a third horizontal portion located at approximately the same elevation as the first horizontal portion of said printed circuit board; a display element extending above the second horizontal portion of said printed circuit board, said display element having a first and second end mounted respectively on said first and third horizontal portions of said printed circuit board; and a space defined by opposed surfaces of the display element and said second horizontal portion of said printed circuit board, said space permitting back light illumination for said display element.
Claim 9
Dependent Claim
27 words
A display device according to claim 6, comprising driving circuit elements for driving said display element, said driving circuit elements being mounted on said printed circuit board.
Claim 10
Dependent Claim
24 words
A display device according to claim 7, wherein said driving circuit elements are mounted on said second horizontal portion of said printed circuit board.
Claim 11
Dependent Claim
21 words
A display device according to claim 6, wherein said insulating layer of said printed circuit board is made of glass epoxy.
Claim 12
Dependent Claim
17 words
A display device according to claim 6, wherein said display element is a liquid crystal display element.
References Cited (Backward Citations)
US4508990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |