LIGHT OUTPUT ENHANCED GALLIUM NITRIDE BASED THIN LIGHT EMITTING DIODE
First Claim
Patent Images
1. A III-nitride based light emitting device comprising:
- an active region for emitting light;
one or more thicknesses of III-nitride between the active region and one or more light extraction or reflection surfaces of the light emitting device, such that an intensity of the light at the extraction surfaces is attenuated by no more than 5% as compared to the intensity of the light at the active region, wherein attenuation is due to absorption of the light by the III-nitride.
1 Assignment
0 Petitions
Accused Products
Abstract
A gallium nitride (GaN) based light emitting device, wherein the device comprises a first surface and a second surface, and the first surface and second surface are separated by a thickness of less than 100 micrometers, and preferably less than 20 micrometers. The first surface may be roughened or textured. A silver or silver alloy may be deposited on the second surface. The second surface of the device may be bonded to a permanent substrate.
57 Citations
11 Claims
-
1. A III-nitride based light emitting device comprising:
-
an active region for emitting light; one or more thicknesses of III-nitride between the active region and one or more light extraction or reflection surfaces of the light emitting device, such that an intensity of the light at the extraction surfaces is attenuated by no more than 5% as compared to the intensity of the light at the active region, wherein attenuation is due to absorption of the light by the III-nitride. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for increasing internal quantum efficiency (IQE) of a III-nitride light emitting device by reducing re-absorption of light by the device, comprising:
-
providing an active region for emitting the light; and providing one or more thicknesses of III-nitride between the active region and one or more light extraction or reflection surfaces of the light emitting device, such that an intensity of the light at the extraction surfaces is attenuated by no more than 5% as compared to the intensity of the light at the active region, wherein attenuation is due to absorption of the light by the III-nitride.
-
-
10. A method for emitting light from a light emitting device with increased internal quantum efficiency, comprising:
emitting light from an active region of the device, wherein one or more thicknesses of III-nitride, between the active region and one or more light extraction or reflection surfaces of the light emitting device, are such that an intensity of the light at the extraction surfaces is attenuated by no more than 5% as compared to the intensity of the light at the active region, wherein attenuation is due to absorption of the light by the III-nitride.
-
11. A III-nitride based light emitting device comprising:
a first surface for extracting light and a second surface for extracting light or redirecting light towards the first surface, wherein the first surface and second surface are separated by a thickness of less than 100 micrometers.
Specification