Author: claimsbot

1. A display device using a diffractive optical modulator and having a distortion correction function, comprising:
a light source unit comprising a plurality of light sources for emitting beams of light having different wavelengths;
a condensing unit for causing the beams of light, emitted from the plurality of the light sources of the light source unit, to have an identical light path;
an illumination unit for converting the beams of light, emitted from the light sources of the light source unit, into linear light;
a diffractive optical modulator for modulating the linear light when the linear light is incident from the illumination unit, so that diffracted light having a plurality of diffraction orders, in which diffracted light having at least one desired diffraction order has appropriate light intensities at respective locations thereof, is generated;
a projection unit for producing an image by projecting the diffracted light, emitted from the diffractive optical modulator, onto a screen;
a filter unit for passing only diffracted light having at least one desired diffraction order, selected from the diffracted light having a plurality of diffraction orders generated by the diffractive optical modulator, therethrough; and
distortion correction means comprising a lens array for correcting an image that will be formed by the diffracted light projected onto the screen by the projection unit.
2. The display device as set forth in claim 1, wherein the projection unit comprises:
a projection lens for expanding the diffracted light having a plurality of diffraction orders, emitted from the diffractive optical modulator; and
a scanner for scanning the diffracted light, incident from the projection lens, onto the screen.
3. The display device as set forth in claim 1, wherein the filter unit is disposed between the projection unit and the screen, and passes only the diffracted light having at least one desired diffraction order, selected from the diffracted light having a plurality of diffraction orders projected from the projection unit, therethrough.
4. The display device as set forth in claim 1, wherein the filter unit is disposed downstream of the diffractive optical modulator, and passes only the diffracted light having at least one desired diffraction order, selected from the diffracted light having a plurality of diffraction orders emitted from the diffractive optical modulator, therethrough.
5. The display device as set forth in claim 1, wherein the distortion correction means comprises an array of lenses having different focal distances.
6. The display device as set forth in claim 5, wherein the distortion correction means is configured such that the lenses have light entry surfaces that are sequentially arranged along a circular surface.
7. The display device as set forth in claim 5, wherein the distortion correction means is configured such that the lenses have light entry surfaces that are sequentially arranged along a parabolic surface.
8. The display device as set forth in claim 5, wherein the distortion correction means is configured such that the lenses have focal distances that are determined depending on different thicknesses of the lenses.
9. The display device as set forth in claim 5, wherein the distortion correction means is configured such that the lenses have focal distances that are determined depending on different radii of curvature of the lenses.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An air cleaning system, comprising:
a first array of ultraviolet light emitting diodes (UV-LEDs) disposed in a first plane;
a second array of UV-LEDs disposed in a second plane that is parallel to the first plane;
a plurality of planar supports disposed parallel to the first and second planes whereby at least a portion of each of the supports are positioned intermediate the first array and the second array of UV-LEDs;
wherein the supports each have respective perforations therein;
wherein all of the respective perforations are defined by respective centerlines;
wherein all of the respective centerlines, of all of the perforations in any two immediately adjacently disposed supports, are misaligned with one another; and
a photocatalyst on at least one of the supports and disposed to contact airflow passing across and through the at least one of the supports.
2. The air cleaning system of claim 1, further comprising a chamber, wherein the supports are supported by the chamber so that surfaces of the supports holding the photocatalyst are in a plane orthogonal to the emitted light.
3. The air cleaning system of claim 2, wherein the chamber includes an entrance for the airflow configured to pass the airflow across the surfaces of the supports in a direction orthogonal to the emitted ultraviolet light.
4. The air cleaning system of claim 1 wherein the first array and second array of UV-LEDs emit a wavelength around 385nm to 410 nm.
5. The air cleaning system of claim 4 wherein the photocatalyst is titanium dioxide based.
6. An air cleaning system, comprising:
a chamber;
a plurality of support plates in the chamber and spaced parallel to one another, each of the plurality of support plates including a first surface and a second surface opposite the first surface;
a plurality of strips on at least one of the support plates, wherein each of said strips has at least one flat surface;
a first plurality of ultraviolet light emitting diodes (UV-LEDs) positioned opposite at least one first surface of the plurality of support plates, and wherein the first plurality of UV-LEDs are positioned over a first cross-sectional area;
wherein a distance from the first plurality of UV-LEDs to the at least one first surface is such that beams from the first plurality of UV-LEDs are substantially uniform in coverage and intensity on the at least one first surface;
a second plurality of UV-LEDs positioned opposite at least one second surface of the plurality of support plates, and wherein the second plurality of UV-LEDs are positioned over a second cross-sectional area;
wherein a distance from the second plurality of UV-LEDs to the at least one second surface is such that beams from the second plurality of UV-LEDs are substantially uniform in coverage and intensity on the at least one second surface;
wherein the at least one first surface and the at least one second surface define apertures therein;
wherein the first and second plurality of UV-LEDs are positioned at opposing sides of the chamber; and
a photocatalyst on the flat strips;
wherein the at least one first surface and the at least one second surface is disposed to contact an airflow passing across and through the at least one first surface and one second surface;
wherein the at least one first surface and the at least one second surface have respective cross sectional areas that respectively overlap all of the first and second cross-sectional areas of the first and second pluralities of UV-LEDs.
7. The air cleaning system of claim 6 wherein the first and second plurality of UV-LEDs are arranged as arrays.
8. The air cleaning system of claim 7 wherein the first plurality of UV-LEDs includes a first set of UV-LEDs positioned proximate a first outermost support plate and the second plurality of UV-LEDs includes a second set of UV-LEDs positioned proximate a second outermost support plate, the second outermost support plate positioned on an opposing side of the chamber from the first outermost support plate, wherein the first set of UV-LEDs is positioned on an outward facing side of the first outermost support plate and the second set of UV-LEDs is positioned an outward side of the second outermost support plate.
9. The air cleaning system of claim 8 wherein the first and second sets of UV-LEDs are configured to emit the ultraviolet light focused onto the first and second outermost support plates.
10. The air cleaning system of claim 6 wherein the chamber includes an entrance for the airflow configured to pass the airflow across the plurality of support plates in a direction orthogonal to the emitted ultraviolet light.
11. The air cleaning system of claim 6 wherein the photocatalyst is titanium dioxide based.

1. An organic light emitting display device comprising:
a substrate configured to include a sub-pixel defined into an emission region and a driving region;
a first bank pattern disposed on the substrate and configured to define the emission region of the sub-pixel;
a second bank pattern disposed on a part of an upper surface of the first bank pattern and configured to include an opening which exposes the emission region and a part of the driving region; and
an organic emission layer disposed in the opening of the emission region and in part of the driving region, wherein the organic emission layer directly contacts and covers the upper surface of the first bank pattern and is surrounded by the second bank pattern.
2. The organic light emitting display device of claim 1, wherein the second bank pattern has a larger height than that of the first bank pattern.
3. The organic light emitting display device of claim 1, wherein the second bank pattern is disposed in the driving region opposite to a capacitor.
4. The organic light emitting display device of claim 1, wherein the opening exposes the emission region and the driving region opposite to a thin film transistor.
5. The organic light emitting display device of claim 1, wherein the second bank pattern is disposed in the driving region opposite to a thin film transistor.
6. The organic light emitting display device of claim 1, wherein the opening exposes the emission region and the driving region opposite to a capacitor.
7. The organic light emitting display device of claim 1, wherein the second bank pattern is disposed in the driving region opposite to an intermediate region between a thin film transistor and a capacitor.
8. The organic light emitting display device of claim 1, wherein the opening exposes the emission region and the driving region opposite to a thin film transistor and a capacitor.
9. The organic light emitting display device of claim 1, wherein the organic emission layer consists of liquefied organic emission material.
10. The organic light emitting display device of claim 1, wherein the opening exposes the emission region and the driving region opposite to a thin film transistor and an intermediate region between the thin film transistor and a capacitor.
11. An organic light emitting display device comprising:
a substrate configured to include a sub-pixel defined into an emission region and a driving region;
a first bank pattern disposed on the substrate and configured to define the emission region of the sub-pixel;
a second bank pattern disposed on a part of an upper surface of the first bank pattern; and
an organic emission layer disposed to cover the first bank pattern, the organic emission layer directly contacting and covering the upper surface of the first bank pattern and surrounded by the second bank pattern.
12. The organic light emitting display device of claim 11, wherein the second bank pattern has a larger height than that of the first bank pattern.
13. The organic light emitting display device of claim 11, wherein the second bank pattern is disposed in the driving region opposite to a capacitor.
14. The organic light emitting display device of claim 11, wherein the second bank pattern is disposed in the driving region opposite to a thin film transistor.
15. The organic light emitting display device of claim 11, wherein the second bank pattern is disposed in the driving region opposite to an intermediate region between a thin film transistor and a capacitor.
16. The organic light emitting display device of claim 11, wherein the organic emission layer consists of liquefied organic emission material.
17. The organic light emitting display device of claim 11, wherein the opening exposes the emission region and the driving region opposite to a thin film transistor and an intermediate region between the thin film transistor and a capacitor.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A lighting device, comprising:
a housing enclosing a housing interior and comprising a light exit for outputting a combination of primary light and secondary light;
a light converter comprising a luminescent material spaced from the light exit by a distance along an axial direction;
a light source mounted at the housing and configured for emitting a primary light beam of a primary wavelength; and
an optical waveguide comprising an input end optically coupled to the light source and an output end facing the housing interior and positioned at an angle to the axial direction, wherein the optical waveguide is configured for directing the primary light beam from the light source, through the housing interior and toward the luminescent material, and the luminescent material is configured for emitting secondary light of one or more wavelengths different from the primary wavelength in response to excitation by the primary light beam.
2. The lighting device of claim 1, wherein the housing comprises an inside housing surface enclosing the housing interior, the light source is mounted outside the housing interior, the optical waveguide extends through a bore of the inside housing surface, and the output end is located at the inside housing surface or at a position in the housing interior between the inside housing surface and the light converter.
3. The lighting device of claim 1, wherein the luminescent material comprises an inside luminescent surface facing the housing interior and oriented perpendicular to the axial direction.
4. The lighting device of claim 1, wherein the housing comprises a heat sink outside the housing interior and the light source is mounted at the heat sink.
5. The lighting device of claim 4, wherein the heat sink is located proximate to the light exit.
6. The lighting device of claim 1, wherein the optical waveguide is selected from the group consisting of a light pipe, an optical fiber, a dielectric slab, a prism, a photonic crystal, a photonic-crystal fiber, a mirror, and combinations of two or more of the foregoing.
7. The lighting device of claim 1, wherein the light source is one of a plurality of light sources mounted at the housing and configured for emitting respective primary light beams, and the optical waveguide is one of a plurality of optical waveguides comprising respective input ends optically coupled to respective light sources and respective output ends positioned at respective angles to the axial direction, wherein the optical waveguides are configured for directing the respective primary light beams from the respective light sources, through the housing interior and toward the luminescent material.
8. The lighting device of claim 7, wherein the light sources and the optical waveguides are arranged circumferentially relative to the axial direction.
9. The lighting device of claim 7, wherein the housing comprises an annular structure disposed outside the housing interior, the annular structure comprises one or more heat sinks, and the light sources are mounted at the one or more heat sinks.
10. The lighting device of claim 7, wherein one or more of the optical waveguides are configured to illuminate substantially the entire luminescent surface, or to illuminate a portion of the luminescent surface.
11. The lighting device of claim 7, wherein one or more of the light sources comprise circuitry configured for adjusting an intensity of the corresponding primary light beam.
12. The lighting device of claim 7, wherein the light converter comprises a reflective section facing the housing interior, at least one of the optical waveguides is configured to direct a corresponding primary light beam to the reflective section, and at least one of the other optical waveguides is configured to direct a corresponding primary light beam to the luminescent material.
13. The lighting device of claim 7, wherein the luminescent material comprises a first luminescent section configured for emitting secondary light of a first wavelength, and a second luminescent section configured for emitting secondary light of a second wavelength different from the first wavelength, and at least one of the optical waveguides is configured to direct a corresponding primary light beam to the first luminescent section, and at least one of the other optical waveguides is configured to direct a corresponding primary light beam to the second luminescent section.
14. The lighting device of claim 1, wherein the luminescent material comprises a first luminescent component and a second luminescent component configured for respectively emitting secondary light of a first wavelength and a second wavelength, and the first luminescent component and the second luminescent component are arranged in an alternating pattern.
15. The lighting device of claim 14, wherein the alternating pattern is selected from the group consisting of a plurality of polygons, a plurality of ellipses, a plurality of circular sectors, a spiral pattern, a dot or circular pattern, and combinations of two or more of the foregoing.
16. The lighting device of claim 1, comprising a reflective surface facing the housing interior.
17. The lighting device of claim 16, wherein the housing comprises an inside surface and the reflective surface is disposed on the inside surface.
18. The lighting device of claim 1, wherein the light converter comprises a reflective substrate and the luminescent material is supported by the substrate.
19. The lighting device of claim 18, wherein the substrate comprises a plurality of nanofibers.
20. A method for producing output light from a lighting device, the method comprising:
generating a primary light beam of a primary wavelength from a light source mounted at a housing of the lighting device;
transmitting the primary light beam from the light source into an optical waveguide communicating with a housing interior enclosed by the housing;
emitting the primary light beam from the optical waveguide along a nominal output axis oriented at an angle to a central axis of the housing interior, wherein the primary light beam is directed through the housing interior and at least a portion of the primary light beam is incident on a light converter comprising a luminescent material;
emitting secondary light from the luminescent material through the housing interior, in response to excitation by the primary light beam, wherein the secondary light is emitted at one or more wavelengths different from the primary wavelength; and
outputting output light from a light exit communicating with the housing interior, wherein the output light comprises a combination of primary light and secondary light.
21. The method of claim 20, wherein the light source is positioned outside of the housing interior and the primary light and secondary light propagate through the housing interior free of obstruction by the light source.
22. The method of claim 20, comprising adjusting a color of the output light by adjusting an intensity of the light source.
23. The method of claim 20, wherein:
(a) the light converter comprises a plurality of sections facing the housing interior and having a configuration selected from the group consisting of: (i) a section of reflective material and a section of luminescent material; (ii) a section of a first luminescent material configured for emitting secondary light of a first wavelength, and a section of a second luminescent material configured for emitting secondary light of a second wavelength different from the first wavelength; and (iii) a section of reflective material, a section of a first luminescent material configured for emitting secondary light of a first wavelength, and a section of a second luminescent material configured for emitting secondary light of a second wavelength different from the first wavelength; and
(b) the primary light beam is incident on one or more of the plurality of sections, and further comprising adjusting a color of the output light by adjusting an intensity of the light source.
24. The method of claim 20, wherein:
generating comprises generating a plurality of primary light beams from a plurality of respective light sources;
transmitting comprises transmitting the primary light beams from the light sources into a plurality of respective optical waveguides; and
the primary light beams are emitted from the optical waveguides along respective nominal output axes oriented at respective angles to the central axis.
25. The method of claim 24, wherein the luminescent material comprises a first luminescent section configured to emit secondary light at a first wavelength and a second luminescent section configured to emit secondary light at a second wavelength different from the first wavelength, and at least one of the primary light beams predominantly illuminates the second luminescent section relative to the other primary light beams.
26. The method of claim 25, comprising adjusting a color of the output light by adjusting an intensity of the primary light beam that predominantly illuminates the second luminescent section.