Light emitting device
First Claim
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1. A light emitting device comprising:
- a light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer interposed between first and second conductive semiconductor layers;
a first amorphous layer on the light emitting structure; and
a nano structure having a nano-size grain shape on the first amorphous layer, wherein the nano structure comprises a first nano structure on the first amorphous layer and a second nano structure on the first nano structure, and wherein the first nano structure comprises AlN or GaN and the second nano structure comprises InGaN.
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Abstract
A light emitting device includes at least one particle over the light emitter. Light at a first wavelength travels from the emitter along a first path adjacent to the particle and at a second wavelength along a second path that passes through the particle. The particle converts the light on the second path from the first wavelength into a second wavelength. The light at the first wavelength mixes with the light at the second wavelength to form light of a third wavelength, which may be white light or another color.
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Citations
9 Claims
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1. A light emitting device comprising:
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a light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer interposed between first and second conductive semiconductor layers; a first amorphous layer on the light emitting structure; and a nano structure having a nano-size grain shape on the first amorphous layer, wherein the nano structure comprises a first nano structure on the first amorphous layer and a second nano structure on the first nano structure, and wherein the first nano structure comprises AlN or GaN and the second nano structure comprises InGaN. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A light emitting device package comprising:
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a light emitting device including a light emitting structure having a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer interposed between first and second conductive semiconductor layers, a first amorphous layer on the light emitting structure, and a nano structure having a nano-size grain shape on the first amorphous layer; and a package body in which the light emitting device is installed, wherein the nano structure comprises a first nano structure on the first amorphous layer and a second nano structure on the first nano structure, and wherein the first nano structure comprises AlN or GaN and the second nano structure comprises InGaN.
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Specification