INTEGRATED POLARIZED LIGHT EMITTING DIODE WITH A BUILT-IN ROTATOR
First Claim
Patent Images
1. An integrated polarized light emitting diode device comprising:
- a light emitting diode, a metal grating, an oxide layer, and a built-in photonic crystal rotator.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention is directed to an integrated polarized light emitting diode device that has a light emitting diode, a metal grating, an oxide layer, and a built-in photonic crystal rotator. Additional teachings include a method for making the integrated polarized light emitting diode, a method for improving the polarization selectivity and energy efficiency of a light emitting diode, and a method for rotating polarization of a light emitting diode.
-
Citations
23 Claims
-
1. An integrated polarized light emitting diode device comprising:
- a light emitting diode, a metal grating, an oxide layer, and a built-in photonic crystal rotator.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
8. A method for improving the polarization selectivity and energy efficiency of a light emitting diode, said method comprising:
-
a. generating light using a light emitting diode device; b. passing light with one direction of polarization through a metal grating on said light emitting diode device; c. passing light that does not pass through the metal grating through a photonic crystal that is built-in as part of said light emitting diode device; and d. optically rotating the polarization of said light to the desired polarization using the built-in photonic crystal rotator, such that high polarization selectivity is obtained and the energy efficiency of the light emitting diode is improved. - View Dependent Claims (9, 10, 11)
-
-
12. A method for rotating polarization of a light emitting diode, said method comprising:
-
a. generating light using a light emitting diode device; b. passing light with one direction of polarization through a metal grating on said light emitting diode device; c. passing light that does not pass through the metal grating through a photonic crystal that is built-in as part of said light emitting diode device; and d. optically rotating the polarization of said light to the desired polarization using the built-in photonic crystal rotator. - View Dependent Claims (13, 14, 15, 16)
-
-
17. A method of making a polarized light emitting diode with a built-in rotator, said method comprising:
-
a. assembling a birefingent photonic crystal optical rotator by a layer by layer method; b. adding a conventional light emitting diode on top of the photonic crystal optical rotator; c. adding an oxide layer on top of the light emitting diode; and d. adding a metal grating on top of the oxide layer. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
Specification