Laser based display method and system
AssigneeSoraa Laser Diode, Inc.
InventorsJames W. Raring, Paul Rudy
Life of this patent
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Abstract
The present invention is directed to display technologies. More specifically, various embodiments of the present invention provide projection display systems where one or more laser diodes are used as light source for illustrating images. In one set of embodiments, the present invention provides projector systems that utilize blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides projection systems having digital lighting processing engines illuminated by blue and/or green laser devices. In one embodiment, the present invention provides a 3D display system. There are other embodiments as well.
Claims28
A projection apparatus comprising:
- a light engine, the light engine comprising:
- a laser source, the laser source comprising an edge emitting blue laser diode, an edge emitting green laser diode, and a red laser diode;
- wherein,
- the green laser diode is configured to emit a wavelength of about 490 nm to 540 nm;
- and
- the blue laser diode and the green laser diode are each fabricated using a gallium and nitrogen containing material;
- wherein the laser source is configured to produce a laser beam by combining outputs from the blue laser diode, the green laser diode, and the red laser diode;
- and
- a micro display device configured with the laser source.
A projection apparatus comprising a laser source, the laser source comprising an edge emitting blue laser diode, an edge emitting green laser diode, and an edge emitting red laser diode;
- wherein,
- the green laser diode is configured to emit a wavelength of about 490 nm to 540 nm;
- and
- the blue laser diode and the green laser diode are each fabricated using a gallium and nitrogen containing material;
- the blue laser diode, the green laser diode, and the red laser diode share a mounting surface configured in a single package;
- the laser source is configured to produce a laser beam by combining outputs from the blue laser diode, the green laser diode, and the red laser diode;
- and
- each of the blue laser diode, the green laser diode, and the red laser diode is configured to be individually modulated.
A projection apparatus comprising a light engine, the light engine comprising:
- a laser source, the laser source comprising an edge emitting blue laser diode, an edge emitting green laser diode, and an edge emitting red laser diode;
- wherein
- the green laser diode is configured to emit a wavelength of about 490 nm to 540 nm;
- and
- the blue laser diode and the green laser diode are each fabricated using a gallium and nitrogen containing material;
- wherein the blue laser diode, the green laser diode, or both the blue laser diode and the green laser diode are characterized by a nonpolar or semipolar orientation;
- and
- a micro display device configured with the laser source,
- wherein the laser source is configured to produce a laser beam by combining outputs from the blue laser diode, the green laser diode, and the red laser diode.
A projection apparatus comprising:
- a light engine, the light engine comprising:
- a laser source, the laser source comprising an edge emitting blue laser diode, an edge emitting green laser diode, and an edge emitting red laser diode;
- wherein,
- the green laser diode is configured to emit a wavelength of about 490 nm to 540 nm;
- and
- the blue laser diode and the green laser diode are fabricated using a gallium and nitrogen containing material;
- the blue laser diode is characterized by an orientation selected from a nonpolar orientation, a semipolar orientation, and a polar orientation;
- the green laser diode is characterized by a semipolar {20-21} orientation and comprises a laser stripe region characterized by a cavity orientation substantially in a projection of a c-direction;
- a micro display device configured with the laser source, wherein the micro display is selected from a MEMS scanning mirror, a digital light processor, and a liquid crystal based display, wherein,
- the laser source is configured to produce a laser beam by combining outputs from the blue laser diode, the green laser diode, and the red laser diode.
Dependencies are inferred from the claim text.