Patent ID: 8450719

Claim:
A nitride-based light emitting device comprising: a first-type nitride-based layer having a first conductivity; a second-type nitride-based layer on the first-type nitride-based layer, the second-type nitride-based layer having a second conductivity; a light emitting layer arranged between the first-type nitride-based layer and the second-type nitride-based layer, the light emitting layer comprising: a plurality of quantum barrier layers; a quantum well layer disposed between adjacent quantum barrier layers; and a nitride-based layer arranged on at least one surface of the quantum well layer, wherein the nitride-based layer comprises a first layer and a second layer having different lattice constants; and a first electrode electrically connected to the first-type nitride-based layer; and a second electrode electrically connected to the second-type nitride-based layer.