Multicolor illumination for a single panel display source

Patent metadata

Field	Value
Publication number	US-9995457-B1
Application number	US-201514860389-A
Country	US
Kind code	B1
Filing date	Sep 21, 2015
Priority date	Sep 21, 2015
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

A display system for providing multicolor light patches for illuminating display images includes at least one light source for providing a light, at least one light pipe having an input end and an output end for allowing the light to enter via the input end and exit via the output end, and at least one color interface coupled to the output end of the at least one light pipe. The at least one color interface includes at least one color material and each color material has a different color characteristic. Light passing through the color material creates an illumination patch associated with the color characteristic of the color material. The display system further includes an optical device coupled with the at least one color interface and configured to receive the illumination patches, combine the illumination patches, and cause a combined illumination patch to be projected as a display image.

First claim

What is claimed is:

1. A display system for providing multicolor light patches for illuminating display images, comprising:
at least one light source configured to provide a light;
at least one light pipe having an input end and an output end and being configured to allow the light to enter via the input end and exit via the output end;
at least one color interface coupled to the output end of the at least one light pipe, the at least one color interface including at least one color material, wherein each color material has a different color characteristic, and wherein light passing through the color material creates an illumination patch associated with the color characteristic of the color material; and
an optical device coupled with the at least one color interface and configured to receive the illumination patches, combine the illumination patches, and cause a combined illumination patch to be projected as a display image.

2. The display system of claim 1 , wherein the at least one light source is configured to provide a white light; and
wherein the at least one color material comprises a plurality of color filters.

3. The display system of claim 2 , wherein the plurality of color filters comprise a red filter, a green filter, and a blue filter.

4. The display system of claim 1 , wherein the at least one light source is configured to provide ultraviolet (UV) light;
wherein the at least one color material comprises a plurality of quantum dots; and
wherein each quantum dot is configured to absorb the ultraviolet light from the at least one light source and to emit a particular color of light based on the wavelength of the absorbed light.

5. The display system of claim 1 , wherein the at least one light source is configured to provide a monochromatic light;
wherein the color material comprises a plurality of quantum dots; and
wherein each quantum dot is configured to absorb the light from the at least one light source and to emit a color of light based on the wavelength of the absorbed light.

6. The display system of claim 1 , wherein the at least one light source is configured to provide an amplified light;
wherein the color material comprises a plurality of color phosphors; and
wherein each color phosphor is configured to absorb the amplified light and to emit a color of light different from the absorbed light.

7. The display system of claim 1 , wherein the at least one color interface further comprises one or more dead bands separating the at least one color material into areas such that different colors of light are produced in each area.

8. The display system of claim 1 , wherein the optical device include a plurality of lenses and beamsplitters configured to direct the combined illumination patch to a micro display device.

9. A display system for providing multicolor light patches for illuminating display images, comprising:
a plurality of light sources configured to provide a light;
a plurality of light pipes having an input end and an output end, each light pipe corresponding to one of the light sources and configured to receive light from the corresponding light source;
at least one color interface coupled to the input end of each light pipe, the at least one color interface including a plurality of color materials each having a different color characteristic and corresponding to one of the light pipes, and wherein light passing through the color materials and corresponding light pipe creates a plurality of illumination patches, each illumination patch associated with one of the color characteristics of the color materials; and
an optical device coupled with at least one light pipe of the plurality of light pipes and configured to receive the illumination patches, combine the illumination patches, and cause a combined illumination patch to be projected as a display image.

10. The display system of claim 9 , wherein the light sources are configured to provide an amplified light; and
wherein the color materials comprise a plurality of color phosphors.

11. The display system of claim 10 , wherein the amplified light is at least one of red, blue, and green.

12. The display system of claim 9 , where the light sources are configured to provide ultraviolet (UV) light;
wherein the color materials comprise a plurality of quantum dots; and
wherein each quantum dot is configured to absorb the ultraviolet light from the light source and to emit a particular color of light based on the wavelength of the absorbed light.

13. The display system of claim 9 , wherein the light sources are configured to provide a monochromatic light;
wherein the color materials comprise a plurality of quantum dots; and
wherein each quantum dot is configured to absorb the light from the light source and to emit a color of light based on the wavelength of the absorbed light.

14. The display system of claim 9 , wherein at least one light source of the plurality of light sources is configured to provide a white light; and
wherein the color materials comprise a plurality of color filters.

15. The display system of claim 14 , wherein the color filters include a red filter, a green filter, and a blue filter.

16. The display system of claim 9 , wherein the optical device include a plurality of lenses and beamsplitters configured to direct the combined illumination patch to a micro display device.

17. A display system for providing multicolor light patches for illuminating display images, comprising:
a light source configured to provide a light;
a first light pipe and a second light pipe, each light pipe having an input end and an output end and being configured to allow the light to enter via the input end and exit via the output end;
at least one color interface coupled to the output end of the first light pipe and the input end of the second light pipe, the at least one color interface including a plurality of color materials each having a different color characteristic, wherein light passing through the first light pipe, the color materials, and the second light pipe creates a plurality of illumination patches, each illumination patch associated with one of the color characteristics associated with the color materials; and
an optical device coupled with at least one of the first light pipe and the second light pipe and configured to receive the illumination patches, combine the illumination patches, and cause a combined illumination patch to be projected as a display image.

18. The display system of claim 17 , wherein the first light pipe comprises a single light pipe, and wherein the second light pipe comprises a plurality of sub-light pipes.

19. The display system of claim 18 , wherein the light source comprises at least one of a light source configured to provide white light, a white light emitting diode (LED), an ultraviolet LED, a laser, and a color LED.

20. The display system of claim 19 , wherein the color materials comprise a plurality of at least one of a color filter, a quantum dot, and a color phosphor.

Assignees

• Keith Christopher A
• Stratton Eric P
• Rockwell Collins Inc

Inventors

• Keith Christopher A
• Stratton Eric P

Classifications

• F21V9/16

  Mechanical Engineering · mapped topic

• G02B6/0008 Primary

  the light being emitted at the end of the fibre · CPC title

• F21Y2101/02

  Mechanical Engineering · mapped topic

• F21V13/02

  Combinations of only two kinds of elements · CPC title

• F21V9/08 Primary

  for producing coloured light, e.g. monochromatic; for reducing intensity of light (with provision for controlling the colour F21V9/40) · CPC title