US5113272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three dimensional semiconductor display using liquid crystal
Assignee: Raychem Corp
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Filing: 1990-02-12
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Granted: 1992-05-12
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Expires: 2010-02-12
Abstract
Abstract A display presenting a three-dimensional visual effect, has (I) a plurality of stacked layers of a display material containing a plurality of pixels which are each independently switchable from a first visual state to a second visual state, each layer having pixels of the same color or combination of colors; (II) switching means for independently switching each pixel from the first visual state to the second visual state; and (III) separating means for providing a separation between adjacent layers of display material. If the number of layers of display material is less than four, the separation between adjacent layers is at least 0.5 mm. Preferably, the display material is encapsulated liquid crystal material.
Inventors
- 👤 Robert H. Reamey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:45
CPC Classifications
G; G02; G02B; G02B30/00; G02B30/50; G02B30/52; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1347; H; H04; H04N; H04N13/00; H04N13/30; H04N13/388; H04N13/395; G02F1/13476
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
A display presenting a three-dimensional visual effect, comprising (I) a plurality of stacked layers of a display material comprising encapsulated liquid crystal material and containing a plurality of pixels which are each independently switchable from a first visual state to a second visual state, each layer having pixels of the same color or combination of colors: (II) switching means for independently switching each pixel from the first visual state to the second visual state; (III) separating means for providing a separation between adjacent layers of display material; provided that where the number of layers of display material is less than four, the separation between adjacent layers is at least 0.5 mm and (IV) filler material which fills the separation between adjacent layers and has a refractive index substantially equal to that of the adjacent layers.
Claim 2
Dependent Claim
135 words
A display presenting a three-dimensional visual effect, comprising (I) a plurality of stacked layers of a display material comprising encapsulated liquid crystal material and containing a plurality of pixels which are each independently switchable from a first visual state to a second visual state, each layer having pixels of the same color or combination of colors: (II) switching means for independently switching each pixel from the first visual state to the second visual state; (III) separating means for providing a separation between adjacent layers of display material; provided that where the number of layers of display material is less than four, the separation between adjacent layers is at least 0.5 mm and (IV) filler material which fills the separation between adjacent layers and has a refractive index substantially equal to that of the adjacent layers.
Claim 3
Dependent Claim
12 words
A display according to claim 1, wherein each pixel is directly addressed.
Claim 4
Dependent Claim
15 words
A display according to claim 1, wherein each pixel is addressed by an active matrix.
Claim 5
Dependent Claim
18 words
A display according to claim 3, wherein the active matrix comprises thin film transistors, back-to-back diodes, or MIM's.
Claim 6
Dependent Claim
12 words
A display according to claim 3, wherein the active matrix comprises varistors.
Claim 7
Dependent Claim
19 words
A display according to claim 1, wherein the display material further comprises pleochroic dye mixed with the liquid crystals.
Claim 8
Dependent Claim
17 words
A display according to claim 1, wherein the display has at least four layers of display material.
Claim 9
Dependent Claim
18 words
A display according to claim 1, wherein the display has between 4 and 20 layers of display material.
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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) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |