US5046829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal display backlighting apparatus having combined optical diffuser and shock dampening properties
Assignee: Motorola Solutions Inc
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Filing: 1989-05-01
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Granted: 1991-09-10
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Expires: 2009-05-01
Abstract
Abstract A light guide is optically coupled to a light source and engagingly positioned between a liquid crystal display and a printed circuit board for both damping vibrations from and backlighting the liquid crystal display.
Inventors
- 👤 Nicholas J. Worp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:32
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0081; G02F1/1335; G02F1/1336; G02F1/133615; G02F2201/00; G02F2201/50; G02F2201/503
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
73 words
A display system comprising: a platform; first means for providing a display; second means for providing light; and third means optically coupled to said second means and engagingly positioned between said first means and said platform, said third means having a flange and a body, said flange securing said first means to said body, for securing said first means to said platform, and for both damping vibrations from and backlighting said first means.
Claim 2
Dependent Claim
73 words
A display system comprising: a platform; first means for providing a display; second means for providing light; and third means optically coupled to said second means and engagingly positioned between said first means and said platform, said third means having a flange and a body, said flange securing said first means to said body, for securing said first means to said platform, and for both damping vibrations from and backlighting said first means.
Claim 3
Dependent Claim
13 words
The display system according to claim 1 wherein said third means comprises silicone.
Claim 4
Dependent Claim
21 words
The display system according to claim 1 wherein said platform is a printed circuit board electrically coupled to said first means.
Claim 5
Dependent Claim
16 words
The display system according to claim 3 wherein said first means comprises a liquid crystal display.
Claim 6
Dependent Claim
29 words
The display system according to claim 4 further comprising a flexible printed circuit material coupled between said printed circuit board and said first means for providing said electrical coupling.
Claim 7
Dependent Claim
19 words
The display system according to claim 5 wherein said second means is positioned on said flexible printed circuit material.
Claim 8
Dependent Claim
91 words
A display system for attachment to a printed circuit board, comprising: means for providing a display; an electrical conductor coupled between said display means and said printed circuit board; a light source; and means optically coupled to said light source and engagingly positioned between said display means and said printed circuit board for securing said display means to said printed circuit board, said securing means having a flange and a body, said flange securing said first means to said body, and for both damping vibrations from and backlighting said first means.
Claim 9
Dependent Claim
91 words
A display system for attachment to a printed circuit board, comprising: means for providing a display; an electrical conductor coupled between said display means and said printed circuit board; a light source; and means optically coupled to said light source and engagingly positioned between said display means and said printed circuit board for securing said display means to said printed circuit board, said securing means having a flange and a body, said flange securing said first means to said body, and for both damping vibrations from and backlighting said first means.
Claim 10
Dependent Claim
13 words
The display system according to claim 7 wherein said light guide comprises silicone.
Claim 11
Dependent Claim
16 words
The display system according to claim 7 wherein said display means comprises a liquid crystal display.
Claim 12
Dependent Claim
32 words
The display system according to claim 9 wherein said electrical conductor comprises a flexible printed circuit material coupled between said printed circuit board and said first means for providing said electrical coupling.
Claim 13
Dependent Claim
19 words
The display system according to claim 10 wherein said second means is positioned on said flexible printed circuit material.
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) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |