Light emitting device and light emitting device package having the same
AssigneeLG Innotek Co., Ltd.
InventorsJae Hoon CHOI, Buem Yeon Lee, Ki Young Song, Rak Jun Choi
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Abstract
A light emitting device includes a nano-structure, a first semiconductor layer on the nano-structure, an active layer on the first semiconductor layer, and a second conductive semiconductor layer on the active layer. The nano-structure includes a graphene layer provided under the first semiconductor layer to make contact with the first semiconductor layer; and a plurality of nano-textures extending from a top surface of the graphene layer to the first semiconductor layer and in contact with the first semiconductor layer.
Claims20
A light emitting device comprising:
- a nano-structure;
- a first semiconductor layer provided over the nano-structure;
- an active layer provided over the first semiconductor layer;
- and
- a second conductive semiconductor layer provided over the active layer;
- wherein the nano-structure comprises:
- a graphene layer provided under the first semiconductor layer and in contact with the first semiconductor layer;
- and
- a plurality of nano-textures extending from a top surface of the graphene layer in a direction toward the first semiconductor layer and in contact with the first semiconductor layer.
A light emitting device comprising:
- a light emitting structure comprising a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer therebetween;
- a plurality of nano-structures provided over a top surface of the light emitting structure;
- an electrode layer provided under the light emitting structure;
- a bonding layer provided under the electrode layer;
- and
- a support substrate provided under the bonding layer,
- wherein each of the nano-structures comprises:
- a graphene pattern in contact with a top surface of the first conductive semiconductor layer;
- and
- a plurality of nano-textures protruding from the graphene pattern in a direction toward the active layer, and
- wherein a connection part connects the graphene patterns of the nano-structure to each other, and
- the nano-texture comprises a material different from materials constituting the graphene patterns or the connection part.
Dependencies are inferred from the claim text.