IP Library Granted Patent US 7,934,841
Granted Patent B2
US 7,934,841 · App. 12/264,563 · Granted May 3, 2011

Optical display systems and methods

Assignee: Luminus Devices, Inc.
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Quick Facts
Patent No.
US 7,934,841
App. No.
12/264,563
Granted
May 3, 2011
Kind
B2
Abstract

Optical display systems and methods are disclosed.

Claims (19)

1. A method of illuminating a microdisplay using a plurality of light emitting devices, the method comprising:

activating the plurality of light emitting devices so that at least one of the plurality of light emitting devices has an activation time that is different from an activation time of at least one of the other light emitting devices in the plurality of light emitting devices,

wherein a surface of at least one of the light emitting devices has a dielectric function that varies spatially according to a nonperiodic pattern.

2. The method of claim 1 , wherein activating the plurality of light emitting devices includes sequentially activating the plurality of light emitting devices.

3. The method of claim 1 , wherein an activation time for a given light emitting device is based on an efficiency of the light emitting device.

4. The method of claim 1 , wherein at least one of the light emitting devices is an LED.

5. The method of claim 4 , wherein the LED is a green LED.

6. The method of claim 1 , wherein each of the plurality of light emitting devices is an LED.

7. The method of claim 6 , wherein the LED having the longest activation time is a green LED.

8. The method of claim 1 , wherein the plurality of light emitting devices includes a red light emitting device, a green light emitting device, and a blue light emitting device.

9. The method of claim 1 , wherein at least one of the light emitting devices is a photonic lattice light emitting device.

10. The method of claim 1 , wherein the activation time of the least efficient light emitting device is at least about 1.25 times the activation time of another of the plurality of light emitting devices.

11. The method of claim 1 , wherein at least one of the light emitting devices is selected from the group consisting of light emitting diodes, lasers, optical amplifiers, and combinations thereof.

12. The method of claim 1 , wherein at least one of the light emitting devices is selected from the group consisting of OLEDs, flat surface-emitting LEDs, HBLEDs, and combinations thereof.

13. The method of claim 1 , wherein the microdisplay is configured within a front projector.

14. The method of claim 1 , wherein the microdisplay is configured within a rear projector.

15. The method of claim 1 , wherein the microdisplay is configured within a rear projection television.

16. The method of claim 1 , wherein the microdisplay is configured within a home theatre system.

17. The method of claim 1 , wherein the microdisplay is configured within a portable projector.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Jan 8, 2018
From: EAST WEST BANK
To: LUMINUS DEVICES, INC.
Reel/Frame 045020/0103 →
SECURITY INTEREST Recorded Oct 15, 2015
From: LUMINUS DEVICES, INC.
To: EAST WEST BANK
Reel/Frame 036869/0355 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2009
From: ERCHAK, ALEXEI A.; LIDORIKIS, ELEFTERIOS; GRAFF, JOHN W.
To: LUMINUS DEVICES, INC.
Reel/Frame 022319/0656 →
Continuity (6)
Division 10872335 · Jun 18, 2004
Continuation In Part 10794452 · Mar 5, 2004
Continuation In Part 10794244 · Mar 5, 2004
Continuation In Part 10735498 · Dec 12, 2003
Provisional Application 60553894 · Mar 16, 2004
Related Publication 20090121657A1 · May 14, 2009