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US 2014/0110734 A1Published application
Light emitting device and method of manufacture
AssigneeLG Innotek Co., Ltd.
InventorsSang Youl LEE, So Jung Kim, June O. Song, Kwang Ki Choi
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Abstract
A light emitting device includes a conductive support layer, a light emitting structure layer on the conductive support layer, a first transparent conductive layer and a second transparent conductive layer disposed between the conductive support layer and the light emitting structure layer, and an electrode on the light emitting structure layer.
Claims21
A light emitting device comprising:
- a conductive support layer;
- a light emitting structure layer on the conductive support layer, wherein the light emitting structure layer comprises a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer;
- a transparent conductive layer disposed between the conductive support layer and the light emitting structure layer, wherein the first transparent conductive layer comprises a first transparent conductive layer and a second transparent conductive layer;
- and
- a reflective layer disposed between the conductive support layer and the transparent conductive layer;
- and
- an electrode on a top surface of the light emitting structure layer,
- wherein the first transparent conductive layer is disposed around the second transparent conductive layer,
- wherein the first transparent conductive layer includes a first portion disposed under a lower surface of the first semiconductor layer and a second portion extended outwardly from the lower surface of the light emitting structure layer,
- wherein the first transparent conductive layer and the second transparent conductive layer comprise different materials,
- wherein the reflective layer includes a protrusion protruded toward a lower surface of the second transparent conductive layer.
8 more elements
A light emitting device comprising:
- a conductive support layer;
- a light emitting structure layer on the conductive support layer, wherein the light emitting structure layer comprises a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer;
- a transparent conductive layer disposed between the conductive support layer and the light emitting structure layer, wherein the first transparent conductive layer comprises a first transparent conductive layer and a second transparent conductive layer;
- and
- a reflective layer disposed between the conductive support layer and the transparent conductive layer;
- and
- an electrode on a top surface of the light emitting structure layer,
- wherein the second transparent conductive layer includes a convex portion vertically overlapped with a portion of the electrode,
- wherein the first transparent conductive layer is disposed around the first protrusion of the second transparent conductive layer,
- wherein the first transparent conductive layer includes a first portion disposed under a lower surface of the first semiconductor layer and a second portion extended outwardly from the lower surface of the light emitting structure layer,
- wherein the first transparent conductive layer and the second transparent conductive layer comprise different materials,
- wherein the reflective layer includes a first protrusion protruded toward the convex portion of the second transparent conductive layer.
9 more elements
A light emitting device comprising:
- a conductive support layer;
- a light emitting structure layer on the conductive support layer, wherein the light emitting structure layer comprises a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer;
- a transparent conductive layer comprising a first transparent conductive layer and a second transparent conductive layer disposed between the conductive support layer and the light emitting structure layer, wherein the first transparent conductive layer is disposed around the second transparent conductive layer, and wherein the first transparent conductive layer is disposed in substantially a same layer as the second transparent conductive layer;
- and
- a reflective layer disposed between the conductive support layer and the transparent conductive layer;
- and
- an electrode on the light emitting structure, wherein at least a portion of the electrode overlaps the second transparent conductive layer,
- wherein the first transparent conductive layer and the second transparent conductive layer comprise different materials,
- wherein each of the conductive support layer and the reflective layer is formed of a metal material,
- wherein the first and second transparent layers contact the first semiconductor layer and electrically connected to the first semiconductor layer.
7 more elements
Dependencies are inferred from the claim text.