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 between the first conductive semiconductor layer and the second conductive semiconductor layer;
a first electrode on the first conductive semiconductor layer;
a photon escape layer on a portion of the first electrode; and
a pad on the first electrode,wherein the pad is disposed in the photon escape layer, andwherein the photon escape layer has a refractive index that is between a refractive index of the light emitting structure and a refractive index of an encapsulating material with respect to the light emitting structure.
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Abstract
A light emitting device including a light emitting structure having a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer; a first electrode on the light emitting structure; and a photon escape layer on the light emitting structure. Further, the photon escape layer has a refractive index that is between a refractive index of the light emitting structure and a refractive index of an encapsulating material with respect to the light emitting structure such that an escape probability for photons emitted by the light emitting structure is increased.
8 Citations
20 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 between the first conductive semiconductor layer and the second conductive semiconductor layer; a first electrode on the first conductive semiconductor layer; a photon escape layer on a portion of the first electrode; and a pad on the first electrode, wherein the pad is disposed in the photon escape layer, and wherein the photon escape layer has a refractive index that is between a refractive index of the light emitting structure and a refractive index of an encapsulating material with respect to the light emitting structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
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10. A light emitting device, comprising:
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a light emitting structure, wherein the light emitting structure includes a first conductive semiconductor layer, a second conductive semiconductor layer and an active layer between the first conductive semiconductor layer and the second conductive semiconductor layer; a first electrode on the first conductive semiconductor layer; a photon escape layer on a portion of the first electrode; a pad on the first electrode; and a second electrode under the second conductive semiconductor layer; wherein the pad does not vertically overlap with the photon escape layer, and wherein the photon escape layer has a refractive index that is between a refractive index of the light emitting structure and a refractive index of an encapsulating material with respect to the light emitting structure. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 20)
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Specification