US5654811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color filter system for display panels
Assignee: Kopin Corp
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Filing: 1994-09-09
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Granted: 1997-08-05
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Expires: 2014-09-09
Abstract
Abstract A display panel is formed using a single crystal thin-film material that is transferred to substrates for display fabrication. Pixel arrays form light valves or switches that can be fabricated with control electronics in the thin-film material prior to transfer. The resulting circuit panel is then incorporated into a color display panel with a light emitting or liquid crystal material to provide the desired light valve.
Inventors
- 👤 Mark B. Spitzer
- 👤 Jack P. Salerno
- 👤 Brenda Dingle
- 👤 Jeffrey Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:20
CPC Classifications
H; H10; H10D; H10D86/00; H10D86/01; H10D86/021; H10D86/0214; G; G02; G02B; G02B27/00; G02B27/0093; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13454; G02F1/136; G02F1/1362; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/30; G09G3/34; G09G3/36; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7441; H04N9/00; H04N9/12; H04N9/31; H04N9/3141; H10D30/00; H10D30/60; H10D30/67; H10D30/6704; H10D30/6723; H10D86/0221; H10D86/0223; H10D86/0227; H10D86/40; H10D86/60; H10H; H10H29/00; H10H29/10; H10H29/14; H10H29/142; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/13613; G02F1/136209; G02F1/136277; G02F2202/00; G02F2202/10; G02F2202/105; G02F2203/00; G02F2203/01; G09G2300/00; G09G2300/02; G09G2300/023; G09G2300/08; G09G2300/0809; G09G2300/0842; G09G2310/00; G09G2310/02; G09G2310/0243; G09G2310/0259; G09G2320/00; G09G2320/02; G09G2320/0233; G09G2320/04; G09G2320/041; G09G2320/043; G09G2340/00; G09G2340/04; G09G2340/0464; G09G2370/00; G09G2370/04; G09G2370/042; G09G3/2007; G09G3/2014; G09G3/3607; G09G3/3611; G09G3/3614; G09G3/3648; H04N5/66; H04N5/70; H04N5/7475; H04N5/7491; H10D30/6708; H10D30/6713; H10P; H10P72/00; H10P72/70; H10P72/74; H10P72/743
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
144 words
A method of fabricating a transmissive display comprising: forming an essentially single crystal semiconductor material over a supporting substrate; forming an array of transistor circuits with the essentially single crystal material, and forming an array of pixel electrodes, each pixel electrode being electrically connected to one of the transistor circuits to provide an active matrix array of pixel elements wherein each pixel element is actuatable by one of the transistor circuits; forming an array of color filter elements over the essentially single crystal material, each color filter element being adjacent each pixel electrode; transferring the essentially single crystal material with the color filter array from the supporting substrate onto an optically transmissive substrate; and positioning a light transmitting material adjacent to the pixel electrodes such that an electric field generated by each pixel electrode alters a light transmitting property of the light transmitting material.
Claim 2
Independent Claim
144 words
A method of fabricating a transmissive display comprising: forming an essentially single crystal semiconductor material over a supporting substrate; forming an array of transistor circuits with the essentially single crystal material, and forming an array of pixel electrodes, each pixel electrode being electrically connected to one of the transistor circuits to provide an active matrix array of pixel elements wherein each pixel element is actuatable by one of the transistor circuits; forming an array of color filter elements over the essentially single crystal material, each color filter element being adjacent each pixel electrode; transferring the essentially single crystal material with the color filter array from the supporting substrate onto an optically transmissive substrate; and positioning a light transmitting material adjacent to the pixel electrodes such that an electric field generated by each pixel electrode alters a light transmitting property of the light transmitting material.
Claim 3
Dependent Claim
39 words
The method of claim 1 wherein the step of forming the essentially single crystal semiconductor material comprises forming a non-single crystal material on the supporting substrate and crystallizing the non-single crystal material to form an essentially single crystal material.
Claim 4
Dependent Claim
27 words
The method of claim 1 wherein the step of forming the array of color filter elements comprises forming the color filter elements from one or more emulsions.
Claim 5
Dependent Claim
42 words
The method of claim 1 wherein the step of forming the array of color filter elements further comprises forming an array of opaque elements on the essentially single crystal material such that the opaque elements are interspersed with the color filter elements.
Claim 6
Dependent Claim
31 words
The method of claim 1 wherein the transferring step further comprises providing an adhesive on the optically transmissive substrate for bonding the essentially single crystal material to the optically transmissive substrate.
Claim 7
Dependent Claim
32 words
The method of claim 5 further comprising providing an optically transmissive layer disposed between the array of color filter elements and the adhesive for isolating the color filter elements from the adhesive.
Claim 8
Dependent Claim
12 words
The method of claim 6 wherein the optically transmissive layer comprises polyimide.
Claim 9
Dependent Claim
13 words
The method of claim 6 wherein the optically transmissive layer comprises sputtered glass.
Claim 10
Dependent Claim
13 words
The method of claim 1 wherein the essentially single crystal material comprises silicon.
Claim 11
Dependent Claim
23 words
The method of claim 1 further comprising an insulation layer adjacent to the liquid crystal material, the insulation layer having a planar surface.
Claim 12
Dependent Claim
46 words
The method of claim 1 wherein the light transmitting material comprises a liquid crystal material and further comprising providing an insulating layer between the liquid crystal material and the thin film of essentially single crystal material for passivating the pixel elements from the liquid crystal material.
Claim 13
Independent Claim
148 words
A method of fabricating an active matrix display comprising: forming a thin film of single crystal silicon over a supporting substrate; forming an array of transistors with the thin film of single crystal silicon and forming an array of pixel electrodes which are each electrically connected to one of the transistors; forming an array of color filter elements over one side of the pixel electrodes, each color filter element correlated with a pixel electrode; forming an optically transmissive layer over each color filter element; transferring the thin film of single crystal silicon with the array of color filter elements and the optically transmissive layer from the supporting substrate to an optically transmissive substrate; and positioning a light transmitting material relative to the thin film of single crystal silicon such that an electric field generated by each pixel electrode alters a light transmitting property of the light transmitting material.
Claim 14
Independent Claim
148 words
A method of fabricating an active matrix display comprising: forming a thin film of single crystal silicon over a supporting substrate; forming an array of transistors with the thin film of single crystal silicon and forming an array of pixel electrodes which are each electrically connected to one of the transistors; forming an array of color filter elements over one side of the pixel electrodes, each color filter element correlated with a pixel electrode; forming an optically transmissive layer over each color filter element; transferring the thin film of single crystal silicon with the array of color filter elements and the optically transmissive layer from the supporting substrate to an optically transmissive substrate; and positioning a light transmitting material relative to the thin film of single crystal silicon such that an electric field generated by each pixel electrode alters a light transmitting property of the light transmitting material.
Claim 15
Dependent Claim
35 words
The method of claim 12 wherein the step of forming the thin film comprises forming a non-single crystal silicon over the supporting substrate and crystallizing the non-single crystal silicon to form the single crystal silicon.
Claim 16
Dependent Claim
29 words
The method of claim 12 wherein the step of forming the array of color filter elements comprises forming the array of color filter elements from one or more emulsions.
Claim 17
Dependent Claim
41 words
The method of claim 12 wherein the step of forming the array of color filter elements further comprises forming an array of opaque elements adjacent the single crystal silicon such that the opaque elements are interspersed with the color filter elements.
Claim 18
Dependent Claim
26 words
The method of claim 12 wherein the transferring step comprises bonding the thin film of single crystal silicon to the optically transmissive substrate with an adhesive.
Claim 19
Dependent Claim
35 words
The method of claim 16 further comprising the step of providing an optically transmissive layer disposed between the array of color filter elements and the adhesive for isolating the color filter elements from the adhesive.
Claim 20
Dependent Claim
12 words
The method of claim 17 wherein the optically transmissive layer comprises polyimide.
Claim 21
Dependent Claim
13 words
The method of claim 17 wherein the optically transmissive layer comprises sputtered glass.
Claim 22
Dependent Claim
14 words
The method of claim 12 wherein the color filter elements comprise a polyimide material.
Claim 23
Independent Claim
87 words
A method of fabricating an active matrix display comprising: forming an array of transistors and an array of pixel electrodes, each pixel electrode being electrically connected to one of the transistors to provide an active matrix array of pixel elements wherein each pixel element is actuatable by one of the transistors; forming an array of color filter elements over the array of pixel electrodes, each color filter element correlated with at least one pixel electrode; and forming a capping layer over the array of color filter elements.
Claim 24
Independent Claim
87 words
A method of fabricating an active matrix display comprising: forming an array of transistors and an array of pixel electrodes, each pixel electrode being electrically connected to one of the transistors to provide an active matrix array of pixel elements wherein each pixel element is actuatable by one of the transistors; forming an array of color filter elements over the array of pixel electrodes, each color filter element correlated with at least one pixel electrode; and forming a capping layer over the array of color filter elements.
Claim 25
Dependent Claim
91 words
The method of claim 21 further comprising the steps of: transferring the active matrix from a supporting substrate onto an optically transmissive substrate; positioning a light transmitting liquid crystal material adjacent to a back side of a thin film of essentially single crystal material with which the transistors is formed; and forming a counterelectrode adjacent to the liquid crystal material, the counterelectrode being positioned relative to the array of pixel electrode such that an electric field generated by each pixel element alters a light transmitting property of the light transmitting material.
Claim 26
Dependent Claim
27 words
The method of claim 21 wherein the step of forming the array of color filter elements comprises forming the color filter elements from one or more emulsions.
Claim 27
Dependent Claim
43 words
The method of claim 22 wherein the step of forming the array of color filter elements further comprises forming an array of opaque elements on the essentially single crystal semiconductor material such that the opaque elements are interspersed with the color filter elements.
Claim 28
Dependent Claim
24 words
The method of claim 22 wherein the transferring step comprises bonding the essentially single crystal material to the optically transmissive substrate with an adhesive.
Claim 29
Dependent Claim
30 words
The method of claim 25 further comprising forming the capping layer between the array of color filter elements and the adhesive to isolate the color filter elements from the adhesive.
Claim 30
Dependent Claim
13 words
The method of claim 26 wherein the optically transmissive layer comprises silicon nitride.
Claim 31
Dependent Claim
13 words
The method of claim 26 wherein the optically transmissive layer comprises sputtered glass.
Claim 32
Independent Claim
104 words
A method of fabricating an active matrix display comprising: forming an array of transistors and an array of pixel electrodes, each pixel electrode being electrically connencted to one of the transistors to provide an active matrix array of pixel elements; forming an array of color filter elements over the array of pixel electrodes, each color filter element correlated with at least one pixel electrode; forming a capping layer over the array of color filter elements; and transferring the array of transistors, the array of pixel electrodes, the array of color filters and the capping layer from a first substrate to an optically transmissive substrate.
Claim 33
Independent Claim
104 words
A method of fabricating an active matrix display comprising: forming an array of transistors and an array of pixel electrodes, each pixel electrode being electrically connencted to one of the transistors to provide an active matrix array of pixel elements; forming an array of color filter elements over the array of pixel electrodes, each color filter element correlated with at least one pixel electrode; forming a capping layer over the array of color filter elements; and transferring the array of transistors, the array of pixel electrodes, the array of color filters and the capping layer from a first substrate to an optically transmissive substrate.
Claim 34
Dependent Claim
79 words
The method of claim 21 further comprising the steps of: positioning a light transmitting liquid crystal material adjacent to a back side of a thin film of single crystal material with which the transistors are formed; and forming a counterelectrode adjacent to the liquid crystal material, the counterelectrode being positioned relative to the array of pixel electrode such that an electric field generated by each pixel element alters a light transmitting property of the light transmitting liquid crystal material.
References Cited (Backward Citations)
US4560241A
Cited
US4709990A
Cited
US5250932A
Cited
JPH0267520A
Cited
US5046822A
Cited
US5079214A
Cited
US5206749A
Cited
US5377031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-04 | 2001-02-03 | 2001-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-04 | 2005-02-03 | 2005-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-04 | 2009-02-03 | 2009-08-05 | $7700.00 | Window Closed / Lapsed |