US5168384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature liquid crystal display device
Assignee: Casio Computer Co Ltd
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Filing: 1991-02-14
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Granted: 1992-12-01
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Expires: 2011-02-14
Abstract
Abstract A miniature liquid crystal display panel device comprises a plurality of column and row terminals. On a squarish frame holder is formed an opening for a light passage in the middle of an enclosing wall and a support portion for mounting the display panel. First and second IC units each including a flexible wiring film and an IC chip are disposed outside the enclosing wall of the holder. A flexible circuit connector for respectively connecting first and second IC units to a control circuit is wound around the outside of the holder. A light source for projecting the display panel is disposed opposite to the display panel in the rear side of the device.
Inventors
- 👤 Yasuo Genba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:40
CPC Classifications
G; G09; G09G; G09G3/00; 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; H05K3/00; H05K3/36; H05K3/361
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
204 words
A miniature liquid crystal display device comprising: a housing including a main body having a cylindrical shape, a lens case having an eyepiece portion at a distal end, and a magnifying lens fixed at said lens case; a display panel unit disposed in said main body of said housing, said display panel including: a squarish frame holder having a predetermined width and an opening formed in an axial direction for passing a light through said width, said squarish frame holder having a first end facing said magnifying lens and a second end opposing said first end; and a liquid crystal display panel disposed in the vicinity of said second end so as to arise a dark space in said opening of said squarish frame holder between said magnifying lens and said liquid crystal display panel; a plurality of integrated circuit assemblies each disposed on an outside of a different side of said squarish frame holder and electrically connected to said liquid crystal panel, each of said integrated circuit assemblies including a circuit tape and an integrated circuit chip bonded to said circuit tape; and light source means disposed in said housing so as to face said liquid crystal panel for projecting said display panel.
Claim 2
Dependent Claim
204 words
A miniature liquid crystal display device comprising: a housing including a main body having a cylindrical shape, a lens case having an eyepiece portion at a distal end, and a magnifying lens fixed at said lens case; a display panel unit disposed in said main body of said housing, said display panel including: a squarish frame holder having a predetermined width and an opening formed in an axial direction for passing a light through said width, said squarish frame holder having a first end facing said magnifying lens and a second end opposing said first end; and a liquid crystal display panel disposed in the vicinity of said second end so as to arise a dark space in said opening of said squarish frame holder between said magnifying lens and said liquid crystal display panel; a plurality of integrated circuit assemblies each disposed on an outside of a different side of said squarish frame holder and electrically connected to said liquid crystal panel, each of said integrated circuit assemblies including a circuit tape and an integrated circuit chip bonded to said circuit tape; and light source means disposed in said housing so as to face said liquid crystal panel for projecting said display panel.
Claim 3
Dependent Claim
40 words
The miniature liquid crystal display device of claim 1, wherein said light source means comprises: a light source; a reflecting layer; and a diffusion layer directly facing said display panel for diffusing rays of light incident from said light source.
Claim 4
Dependent Claim
27 words
The miniature liquid crystal display device of claim 1, wherein said liquid crystal display panel comprises an STN liquid crystal display panel and a color compensation cell.
Claim 5
Dependent Claim
26 words
The miniature liquid crystal display device of claim 1, further comprising a control circuit board for controlling said integrated circuit chips of said integrated circuit assemblies.
Claim 6
Dependent Claim
27 words
The miniature liquid crystal display device of claim 4, wherein said frame holder has a plurality of hooks integrally formed thereon for engaging said control circuit board.
Claim 7
Dependent Claim
23 words
The miniature liquid crystal display device of claim 5, wherein each of said hooks is formed as a part of said frame holder.
Claim 8
Dependent Claim
33 words
The miniature liquid crystal display device of claim 5, further comprising a flexible circuit connector wound around said squarish frame holder to electrically connect said integrated circuit assemblies to said control circuit board.
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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) | 1995-12-01 | 1996-06-01 | 1996-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-01 | 2000-06-01 | 2000-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-01 | 2004-06-01 | 2004-12-01 | $7700.00 | Window Closed / Lapsed |