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US 9,312,450 B2Granted
Light emitting device and light emitting device package
AssigneeLG Innotek Co., Ltd.
InventorsKwang Ki Choi, Hwan Hee Jeong, Sang Youl Lee, June O Song, Ji Hyung Moon
Life of this patent
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Abstract
Disclosed are a light emitting device and a light emitting device package. The light emitting device includes a first electrode, a light emitting structure including a first semiconductor layer, an active layer, and a second semiconductor layer on the first electrode, a nano-tube layer including a plurality of carbon nano tubes on the light emitting structure, and a second electrode on the light emitting structure.
Claims13
A light emitting device comprising:
- a light emitting structure including a first semiconductor layer, an active layer, and a second semiconductor layer;
- a nano-tube layer including carbon nano tubes on the second semiconductor layer;
- a current blocking layer between the second semiconductor layer and the nano-tube layer;
- a first electrode electrically connected to the first semiconductor layer;
- and
- a second electrode electrically connected to the second semiconductor layer,
- wherein the second electrode includes a first portion on the current blocking layer, and a second portion on the first portion,
- wherein the first portion of the second electrode contacts the current blocking layer, and
- wherein the second portion of the second electrode contacts the nano-tube layer.
6 more elements
A light emitting device comprising:
- a light emitting structure including a first semiconductor layer, an active layer, and a second semiconductor layer;
- a nano-tube layer including carbon nano tubes on the second semiconductor layer;
- a current blocking layer between the second semiconductor layer and the nano-tube layer;
- a first electrode electrically connected to the first semiconductor layer;
- and
- a second electrode electrically connected to the second semiconductor layer,
- wherein the nano-tube layer has a refractive index lower than a refractive index of the light emitting structure,
- wherein the second electrode includes a first portion on the current blocking layer, and a second portion on the first portion,
- wherein a top surface of the current blocking layer is higher than a bottom surface of the nano-tube layer.
6 more elements
A light emitting device comprising:
- a substrate;
- a light emitting structure on the substrate and including a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer;
- a first electrode electrically connected to the first semiconductor layer;
- a nano-tube layer on the second semiconductor layer;
- a current blocking layer between the second semiconductor layer and the nano-tube layer;
- and
- a second electrode on the nano-tube layer,
- wherein a portion of the nano-tube layer is disposed between the current blocking layer and the second electrode,
- wherein the portion of the nano-tube layer disposed between the current blocking layer and the second electrode contacts a top surface of the current blocking layer, and
- wherein the second electrode contacts a portion of the current blocking layer and the portion of the nano-tube layer.
7 more elements
Dependencies are inferred from the claim text.