US7090355B2
Expired / Lapsed
US
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System and method for a transparent color image display utilizing fluorescence conversion of nano particles and molecules
Assignee: Sun Innovations Inc
•
Filing: 2004-05-18
•
Granted: 2006-08-15
•
Expires: 2024-05-18
Abstract
Abstract A system and a method of a transparent color image display utilizing fluorescence conversion (FC) of nano-particles and molecules are disclosed. In one preferred embodiment, a color image display system consists of a light source equipped with two-dimensional scanning hardware and a FC display screen board. The FC display screen board consists of a transparent fluorescence display layer, a wavelength filtering coating, and an absorption substrate. In another preferred embodiment, two mechanisms of light excitation are utilized. One of the excitation mechanisms is up-conversion where excitation light wavelength is longer than fluorescence wavelength. The second mechanism is down-conversion where excitation wavelength is shorter than fluorescence wavelength. A host of preferred fluorescence materials for the FC screen are also disclosed. These materials fall into four categories: inorganic nanometer sized phosphors; organic molecules and dyes; semiconductor based nano particles; and organometallic molecules. These molecules or nano-particles are incorporated in the screen in such a way that allows the visible transparency of the screen. Additionally, a preferred fast light scanning system is disclosed. The preferred scanning system consists of dual-axes acousto-optic light deflector, signal processing and control circuits equipped with a close-loop image feedback to maintain position accuracy and pointing stability of the excitation beam.
Inventors
- 👤 Jianqiang Liu
- 👤 Xiao-Dong Sun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:48
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; G; G02; G02F; G02F2/00; G02F2/02; H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3129
Claims Analysis
Total Claims: 83
Claim 1
Independent Claim
147 words
A two-dimensional color image display setup with visibly transparent screen based on fluorescence conversion comprising: at least one excitation light beam operating in a wavelength range of >700 nm or <450 nm; an optical imaging processing unit projecting the said light beam to specified positions with specified light intensities; a displaying screen comprising at least one layer of transparent medium containing at least one type of electro-magnetic radiation activated visible light emitting ingredients, wherein the said electro-magnetic radiation activated visible light emitting ingredients containing laser dye or organic molecules with dimensions between 0.5 nm to 100 nm; a coating attached to the said layer of transparent medium of the said displaying screen separating the said visible light from the said excitation light; a covering layer of transparent materials protecting the said transparent layer of medium containing the said visible light emitting particles of the said displaying screen.
Claim 2
Dependent Claim
147 words
A two-dimensional color image display setup with visibly transparent screen based on fluorescence conversion comprising: at least one excitation light beam operating in a wavelength range of >700 nm or <450 nm; an optical imaging processing unit projecting the said light beam to specified positions with specified light intensities; a displaying screen comprising at least one layer of transparent medium containing at least one type of electro-magnetic radiation activated visible light emitting ingredients, wherein the said electro-magnetic radiation activated visible light emitting ingredients containing laser dye or organic molecules with dimensions between 0.5 nm to 100 nm; a coating attached to the said layer of transparent medium of the said displaying screen separating the said visible light from the said excitation light; a covering layer of transparent materials protecting the said transparent layer of medium containing the said visible light emitting particles of the said displaying screen.
Claim 3
Dependent Claim
18 words
The two-dimensional color image display setup recited in claim 1 wherein the said covering layers being glass plates.
Claim 4
Dependent Claim
18 words
The two-dimensional color image display setup recited in claim 1 wherein the said covering layers being polymer material.
Claim 5
Dependent Claim
24 words
The two-dimensional color image display setup recited in claim 1 wherein the said transparent medium of the said fluorescent layer being a transparent liquid.
Claim 6
Dependent Claim
24 words
The two-dimensional color image display setup recited in claim 1 wherein the said transparent medium of the said fluorescent layer being a transparent solid.
Claim 7
Dependent Claim
44 words
The two-dimensional color image display setup recited in claim 1 wherein the said electro-magnetic radiation activated visible light emitting particles absorbing electro-magnetic radiation in the wavelength range <450 nm or<700 nm while emitting visible light in the wavelength range >700 nm and >450 nm.
Claim 8
Dependent Claim
31 words
The two-dimensional color image display setup recited in claim 1 wherein the said electro-magnetic radiation activated visible light emitting particles containing semiconductor elements with dimensions between 1 nm to 1 μm.
Claim 9
Dependent Claim
32 words
The two-dimensional color image display setup recited in claim 1 wherein the said electro-magnetic radiation activated visible light emitting particles containing fluorescent organic polymers that are coated to the said displaying screen.
Claim 10
Dependent Claim
31 words
The two-dimensional color image display setup recited in claim 1 wherein the said electro-magnetic radiation activated visible light emitting particles containing inorganic phosphors with dimensions between 1 nm to 500 nm.
Claim 11
Dependent Claim
46 words
The two-dimensional color image display setup recited in claim 1 wherein the said electro-magnetic radiation activated visible light emitting particles containing at least one type of metallic element (atoms or ions)being chemically bonded to an organic compound with molecular dimensions between 0.5 nm to 500 nm.
Claim 12
Dependent Claim
87 words
A transparent fluorescence conversion screen for two-dimensional color image display comprising: at least one fluorescent layer of transparent medium containing at least one type of electro-magnetic radiation activated visible light emitting particles, wherein the said electro-magnetic radiation activated visible light emitting particles containing laser dye or organic molecules with dimensions between 0.5 nm to 100 nm; a coating attached to the said layer of transparent medium separating the said visible light from the said activation radiation; a covering layer of transparent materials protecting the said fluorescent layer.
Claim 13
Dependent Claim
87 words
A transparent fluorescence conversion screen for two-dimensional color image display comprising: at least one fluorescent layer of transparent medium containing at least one type of electro-magnetic radiation activated visible light emitting particles, wherein the said electro-magnetic radiation activated visible light emitting particles containing laser dye or organic molecules with dimensions between 0.5 nm to 100 nm; a coating attached to the said layer of transparent medium separating the said visible light from the said activation radiation; a covering layer of transparent materials protecting the said fluorescent layer.
Claim 14
Dependent Claim
17 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said covering layers being glass plates.
Claim 15
Dependent Claim
17 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said covering layers being polymer material.
Claim 16
Dependent Claim
23 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said transparent medium of the said fluorescent layer being a transparent liquid.
Claim 17
Dependent Claim
23 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said transparent medium of the said fluorescent layer being a transparent solid.
Claim 18
Dependent Claim
44 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said electro-magnetic radiation activated visible light emitting particles absorbing electro-magnetic radiation in the wavelength range <450 nm or >700 nm while emitting visible light in the wavelength range <700 nm and >450 nm.
Claim 19
Dependent Claim
30 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said electro-magnetic radiation activated visible light emitting particles containing semiconductor elements with dimensions between 1 mm to 1 μm.
Claim 20
Dependent Claim
28 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said electro-magnetic radiation activated visible light emitting particles containing organic polymer coated to the said display screen.
Claim 21
Dependent Claim
30 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said electro-magnetic radiation activated visible light emitting particles contains inorganic phosphors with dimensions between 1 mm to 500 nm.
Claim 22
Dependent Claim
46 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said electro-magnetic radiation activated visible light emitting particles contains at least one type of metallic element (atoms or ions) being chemically bonded to an organic compound with molecular dimensions between 0.5 nm to 500 nm.
Claim 23
Dependent Claim
27 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said transparent medium of the said fluorescent layer having thickness of 1 μm to 1 cm.
Claim 24
Dependent Claim
22 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said screen having diagonal measuring from 5 cm to 10 meters.
Claim 25
Dependent Claim
26 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said screen is attached to the windshield of a moving object (automobile, aircraft or boat).
Claim 26
Dependent Claim
21 words
The transparent fluorescence conversion screen recited in claim 11 wherein the said screen is attached to the window of a building.
Claim 27
Independent Claim
79 words
An apparatus comprising light emitting material integrated into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of at least one of light having a wavelength less than approximately 500 nanometers and light having a wavelength greater than approximately 700 nanometers; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 28
Independent Claim
79 words
An apparatus comprising light emitting material integrated into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of at least one of light having a wavelength less than approximately 500 nanometers and light having a wavelength greater than approximately 700 nanometers; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 29
Dependent Claim
23 words
The apparatus of claim 25 , wherein each of the plurality of light emitting particles has a diameter greater than about 0.5 nanometers.
Claim 30
Dependent Claim
23 words
The apparatus of claim 25 , wherein each of the plurality of light emitting particles has a diameter greater than about 1 nanometers.
Claim 31
Dependent Claim
23 words
The apparatus of claim 27 , wherein each of the plurality of light emitting particles has a diameter greater than about 2 nanometers.
Claim 32
Dependent Claim
23 words
The apparatus of claim 25 , wherein each of the plurality of light emitting particles has a diameter less than about 450 nanometers.
Claim 33
Dependent Claim
23 words
The apparatus of claim 29 , wherein each of the plurality of light emitting particles has a diameter less than about 400 nanometers.
Claim 34
Dependent Claim
23 words
The apparatus of claim 30 , wherein each of the plurality of light emitting particles has a diameter less than about 300 nanometers.
Claim 35
Dependent Claim
23 words
The apparatus of claim 31 , wherein each of the plurality of light emitting particles has a diameter less than about 200 nanometers.
Claim 36
Dependent Claim
23 words
The apparatus of claim 32 , wherein each of the plurality of light emitting particles has a diameter less than about 100 nanometers.
Claim 37
Dependent Claim
23 words
The apparatus of claim 33 , wherein each of the plurality of light emitting particles has a diameter less than about 50 nanometers.
Claim 38
Dependent Claim
13 words
The apparatus of claim 25 , wherein the apparatus is a monochromatic display.
Claim 39
Dependent Claim
39 words
The apparatus of claim 25 , wherein the light emitting material comprises: a first material which emits a first visible color; and a second material which emits a second visible color, which is different from the first visible color.
Claim 40
Dependent Claim
34 words
The apparatus of claim 36 , wherein the light emitting material comprises a third material which emits a third visible color, which is different from the first visible color and the second visible color.
Claim 41
Dependent Claim
23 words
The apparatus of claim 37 , wherein the first visible color, the second visible color, and the third visible color are primary colors.
Claim 42
Dependent Claim
15 words
The apparatus of claim 38 , wherein the primary colors are red, green, and blue.
Claim 43
Dependent Claim
24 words
The apparatus of claim 36 , wherein the first material and the second material are integrated into the substantially transparent substrate as a mixture.
Claim 44
Dependent Claim
31 words
The apparatus of claim 36 , wherein the first material and the second material are integrated into the substantially transparent substrate as layers on a surface of the substantially transparent substrate.
Claim 45
Dependent Claim
40 words
The apparatus of claim 36 , wherein: the first visible color is emitted according to selective projection of light having a first wavelength; and the second visible color is emitted according to selective projection of light having a second wavelength.
Claim 46
Dependent Claim
30 words
The apparatus of claim 42 , wherein a fourth color is emitted by a combination of substantially simultaneous selective projection of light having the first wavelength and the second wavelength.
Claim 47
Dependent Claim
14 words
The apparatus of claim 43 , wherein the fourth color is a non-primary color.
Claim 48
Dependent Claim
37 words
The apparatus of claim 25 , wherein the at least one of light having a wavelength less than approximately 500 nanometers and light having a wavelength greater than approximately 700 nanometers is emitted from a laser apparatus.
Claim 49
Dependent Claim
31 words
The apparatus of claim 25 , wherein the light emitting material is configured to emit visible light in response to absorption of light having a wavelength less than approximately 500 nanometers.
Claim 50
Dependent Claim
24 words
The apparatus of claim 46 , wherein the light emitting material is configured to emit visible light in response to absorption of ultraviolet light.
Claim 51
Dependent Claim
16 words
The apparatus of claim 46 , wherein the light emitting material is a fluorescent down-conversion material.
Claim 52
Dependent Claim
31 words
The apparatus of claim 25 , wherein the light emitting material is configured to emit visible light in response to absorption of light having a wavelength greater than approximately 700 nanometers.
Claim 53
Dependent Claim
24 words
The apparatus of claim 49 , wherein the light emitting material is configured to emit visible light in response to absorption of infrared light.
Claim 54
Dependent Claim
16 words
The apparatus of claim 49 , wherein the light emitting material is a fluorescent up-conversion material.
Claim 55
Dependent Claim
13 words
The apparatus of claim 25 , wherein the light emitting material comprises europium.
Claim 56
Dependent Claim
15 words
The apparatus of claim 52 , wherein the europium is comprised in an organometallic material.
Claim 57
Dependent Claim
13 words
The apparatus of claim 25 , wherein the light emitting material comprises terbium.
Claim 58
Dependent Claim
15 words
The apparatus of claim 54 , wherein the terbium is comprised in an organometallic material.
Claim 59
Dependent Claim
69 words
The apparatus of claim 25 , wherein the light emitting material comprises at least one of: inorganic particles; ceramic particles; nanoparticles; a laser dye; pyrromethene; coumarin; rhodamine; fluorescein; aromatic hydrocarbons; derivatives of aromatic hydrocarbons; polymers containing unsaturated bonds; small organic molecules; fluorescent polymers; fluorescent organic polymers; semiconductor particles; inorganic crystallite; homogeneous nano-crystals; nanoparticles each having at least one shell; II–VI compound semiconductors; IlI–V compound semiconductors; and fluorescent quantum dots.
Claim 60
Dependent Claim
22 words
The apparatus of claim 56 , wherein the light emitting material is a nanoparticle having a core and at least one shell.
Claim 61
Dependent Claim
25 words
The apparatus of claim 57 , wherein: the core comprises a first semiconductor material; and the at least one shell comprises a second semiconductor material.
Claim 62
Dependent Claim
33 words
The apparatus of claim 58 , wherein the first semiconductor material and the second semiconductor material comprise materials from at least one of: group II–VI semiconductors; group III–V semiconductors; and group IV semiconductors.
Claim 63
Dependent Claim
32 words
The apparatus of claim 25 , wherein the light emitting material comprises at least one of: a metal oxide; a metal fluoride; a metal halide; a metal chalcoginide; and a metal sulfide.
Claim 64
Dependent Claim
17 words
The apparatus of claim 60 , wherein the light emitting material is doped with rare earth elements.
Claim 65
Dependent Claim
60 words
The apparatus of claim 23 , wherein the tight emitting material comprises a Garnet series phosphor doped with Cerium, wherein: the Garnet series phosphor is represented by (Y m A 1-m ) 3 (Al n B 1-n ) 5 O 12 ; 0≦m and n≦1; A comprises rare earth elements; and B comprises at teast one of boron and gallium.
Claim 66
Dependent Claim
25 words
The apparoatus of claim 25 , wherein the light emitting material comprises at least one of: metal silicates; metal borates; metal phosphates; and metal aluminates.
Claim 67
Dependent Claim
18 words
The apparatus of claim 25 , wherein the light emitting material comprises at least one rare earth element.
Claim 68
Dependent Claim
18 words
The apparatus of claim 25 , wherein the light emitting material comprises at least one transitional metal element.
Claim 69
Dependent Claim
18 words
The apparatus of claim 25 , wherein the light emitting material comprises at least one main group element.
Claim 70
Dependent Claim
15 words
The apparatus of claim 25 , wherein the light emitting material comprises undoped fluorescent material.
Claim 71
Dependent Claim
25 words
The apparatus of claim 67 , wherein the undoped material comprises at least one of: metal tungstates; calcium; zinc; cadmium; metal vanadates; and zinc oxide.
Claim 72
Dependent Claim
25 words
The apparatus of claim 25 , wherein the light emitting material comprises at least one of: a polymer; a MEH-PPV polymer; and a PPV polymer.
Claim 73
Dependent Claim
14 words
The apparatus of claim 25 , wherein the light emitting material comprises organometallic molecules.
Claim 74
Dependent Claim
32 words
The apparatus of claim 70 , wherein the light emitting material comprises a metal center comprising at least one rare earth element protected with at least one material of organic chelating groups.
Claim 75
Dependent Claim
21 words
The apparatus of claim 70 , wherein the light emitting material comprises a metal center comprising at least one transitional element.
Claim 76
Dependent Claim
22 words
The apparatus of claim 70 , wherein the light emitting material comprises a metal center comprising at least one main group element.
Claim 77
Dependent Claim
22 words
The apparatus of claim 70 , wherein the light emitting material comprises at least one of: Tris(dibenzoylmethane)mono(phenanthroline)europium(III); Tris(8-hydroxyquinoline)erbium; Tris(1-phenyl-3-methyl-4-(2,2-dimethylpropan-1-oyl)-pyrazolin-5-one)terbium(III); Bis(2-methyl-8-hydroxyquinolato)zinc; and Diphenylborane-8-hydroxyquinolate.
Claim 78
Dependent Claim
36 words
The apparatus of claim 25 , wherein said at least one of light having a wavelength less than approximately 500 nanometers and light having a wavelength greater than approximately 700 nanometers is emitted from a laser.
Claim 79
Dependent Claim
14 words
The apparatus of claim 75 , wherein the laser is modulated by a galvanometer.
Claim 80
Dependent Claim
16 words
The apparatus of claim 75 , wherein the laser is modulated by an acousto-optic light defector.
Claim 81
Dependent Claim
16 words
The apparatus of claim 75 , wherein the laser is modulated by an electro-optic light deflector.
Claim 82
Independent Claim
79 words
A method comprising integrating light emitting material into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of at least one of light having a wavelength less than approximately 500 nanometers and light having a wavelength greater than approximately 700 nanometers; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 83
Independent Claim
79 words
A method comprising integrating light emitting material into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of at least one of light having a wavelength less than approximately 500 nanometers and light having a wavelength greater than approximately 700 nanometers; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
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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) | 2009-08-14 | 2010-02-13 | 2010-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-08-14 | 2014-02-13 | 2014-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-08-14 | 2018-02-13 | 2018-08-15 | $7700.00 | Window Closed / Lapsed |