Ac Light Emitting Device Having Photonic Crystal Structure and Method of Fabricating the Same
First Claim
1. An AC light emitting device, comprising:
- a plurality of light emitting cells each including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on one region of the first conductive type semiconductor layer, an active layer interposed between the first and second conductive type semiconductor layers, and a photonic crystal structure formed in the second conductive type semiconductor layer; and
metallic wirings electrically connecting the plurality of light emitting cells with one another.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is an AC light emitting device having photonic crystal structures and a method of fabricating the same. The light emitting device includes a plurality of light emitting cells and metallic wirings electrically connecting the light emitting cells with one another. Further, each of the light emitting cells includes a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on one region of the first conductive type semiconductor layer, and an active layer interposed between the first and second conductive type semiconductor layers. In addition, a photonic crystal structure is formed in the second conductive type semiconductor layer. The photonic crystal structure prevents light emitted from the active layer from laterally propagating by means of a periodic array, such that light extraction efficiency of the light emitting device can be improved. Furthermore, the metallic wirings electrically connect a plurality of light emitting cells with one another such that an AC light emitting device can be provided.
-
Citations
9 Claims
-
1. An AC light emitting device, comprising:
-
a plurality of light emitting cells each including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on one region of the first conductive type semiconductor layer, an active layer interposed between the first and second conductive type semiconductor layers, and a photonic crystal structure formed in the second conductive type semiconductor layer; and metallic wirings electrically connecting the plurality of light emitting cells with one another. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method of fabricating an AC light emitting device, comprising:
-
forming a first conductive type semiconductor layer, an active layer and a second conductive type semiconductor layer on a substrate; patterning the second conductive type semiconductor layer, the active layer and the first conductive type semiconductor layer to form a plurality of light emitting cells each including an isolated first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on one region of the isolated first conductive type semiconductor layer, an active layer interposed between the isolated first conductive type semiconductor layer and the second conductive type semiconductor layer, and a photonic crystal structure formed in the second conductive type semiconductor layer; and forming metallic wirings electrically connecting the light emitting cells having the photonic crystal structures with one another. - View Dependent Claims (7, 8, 9)
-
Specification