Laser based display method and system
View Patent ↗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 a 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.
1. A projection apparatus comprising:
a housing having an aperture;
an input interface for receiving one or more frames of images;
a laser source including an edge emitting blue laser diode and a wavelength modifying module, the blue laser diode comprising a gallium and nitrogen containing material, the wavelength modifying module comprising phosphor material, the laser exciting the phosphor material to form a colored emission source;
a digital light processing chip comprising a digital mirror device, the digital mirror device including a plurality of mirrors, each of the mirrors corresponding to one or more pixels of the one or more frames of images;
means for directing light from the blue laser diode and the colored emission sources to the digital mirror device; and
a power source electrically coupled to the laser source and the digital light processing chip.
2. A projection apparatus comprising:
a housing having an aperture;
an input interface for receiving one or more frames of images;
a laser source including a gallium and nitrogen containing material, an edge emitting laser diode and a wavelength modifying module, the wavelength modifying module comprising phosphor material, the laser exciting the phosphor material to form a colored emission source;
a digital light processing chip comprising a digital mirror device, the digital mirror device including a plurality of mirrors, each of the mirrors corresponding to one or more pixels of the one or more frames of images;
means for directing light from the colored emission source to the digital mirror device; and
a power source electrically coupled to the laser source and the digital light processing chip.
3. A projection apparatus comprising:
a housing having an aperture;
an input interface for receiving one or more frames of images;
a light source, the light source including an edge emitting blue laser diode, the blue laser diode being characterized by a semi-polar or non-polar orientation and manufactured from gallium containing material;
a digital light processing chip comprising a digital mirror device, the digital mirror device including a plurality of mirrors, each of the mirrors corresponding to one or more pixels of the one or more frames of images;
a color wheel comprising a plurality of wavelength-modifying components, the plurality of wavelength-modifying components including a first component, the first component including phosphor material and corresponding to a predetermined time sequence; and
a power source electrically coupled to the light source and the digital light processing chip.
4. The apparatus of claim 3 wherein the light source further comprises phosphor material.
5. The apparatus of claim 3 wherein the light source further includes one or more LEDs.
6. The apparatus of claim 3 wherein the light source comprises a red LED.
7. The apparatus of claim 3 wherein the light source comprises a yellow emitting laser diode.
8. The apparatus of claim 1 wherein the blue laser diode is operable in a 430-480 nm wavelength range and characterized by a nonpolar m-plane orientation.
9. The apparatus of claim 1 wherein the blue laser diode is operable in a 430-480 nm wavelength range and characterized by a semipolar {20-21} orientation.
10. The apparatus of claim 1 wherein the phosphor material comprises a red emitting phosphor material and a green emitting phosphor material.
11. The apparatus of claim 1 wherein the phosphor material comprises a red emitting phosphor material, a green emitting phosphor material, and a blue emitting phosphor material.
12. The apparatus of claim 1 further comprising more than one digital light processing chips.
13. The apparatus of claim 2 wherein the laser diode is operable in a 430-480 nm wavelength range and characterized by a nonpolar m-plane orientation.
14. The apparatus of claim 2 wherein the laser diode is operable in a 430-480 nm wavelength range and characterized by a semipolar {20-21} orientation.
15. The apparatus of claim 2 wherein the phosphor material comprises a red emitting phosphor material and a green emitting phosphor material.
16. The apparatus of claim 2 wherein the phosphor material comprises a red emitting phosphor material, a green emitting phosphor material, and a blue emitting phosphor material.
17. The apparatus of claim 2 further comprising more than one digital light processing chips.
18. The apparatus of claim 3 wherein the blue laser diode is operable in the 430-480 nm wavelength range and characterized by a nonpolar m-plane orientation or a semipolar {20-21} orientation.
19. The apparatus of claim 3 wherein the plurality of wavelength-modifying components includes at least a first phosphor and a second phosphor; the first phosphor material is comprised of a red emitting phosphor material and the second phosphor is comprised of a green emitting phosphor material.
20. The apparatus of claim 3 wherein the plurality of wavelength-modifying components includes at least a first phosphor, a second phosphor, and a third phosphor; the first phosphor material is comprised of a red emitting phosphor material, the second phosphor is comprised of a green emitting phosphor material, and the third phosphor is comprised of a blue emitting phosphor.
21. A projection apparatus comprising:
a housing having an aperture;
an input interface for receiving one or more frames of images;
a light source, the light source including an edge emitting violet laser diode, the violet laser diode being characterized by a semi-polar or non-polar orientation and manufactured from gallium containing material;
a digital light processing chip comprising a digital mirror device, the digital mirror device including a plurality of mirrors, each of the mirrors corresponding to one or more pixels of the one or more frames of images;
a color wheel comprising a plurality of wavelength-modifying components, the plurality of wavelength-modifying components including a first component, the first component including phosphor material and corresponding to a predetermined time sequence; and
a power source electrically coupled to the light source and the digital light processing chip.
22. The apparatus of claim 21 wherein the violet laser diode is operable in an ultra-violet wavelength range.