Patent ID: 8890184

Claim:
A light-emitting device comprising: a first type semiconductor layer; a plurality of nanostructures, each of the nanostructures comprising a first type semiconductor nano-core having a three-dimensional (3D) shape and disposed on the first type semiconductor layer, an active layer disposed to surround a surface of the first type semiconductor nano-core, and a second type semiconductor layer disposed to surround a surface of the active layer and comprising indium (In); and at least one flat structure layer comprising a flat-active layer and a flat-second type semiconductor layer that are sequentially disposed on the first type semiconductor layer parallel to the first type semiconductor layer, wherein the plurality of nanostructures are divided into a plurality of groups comprising two or more adjacent nanostructures, and the at least one flat structure layer and the plurality of groups are alternately disposed, wherein the nanostructure and the flat structure layer are configured to emit light of different wavelengths, and wherein a length of the flat structure is adjusted such that the light-emitting device emits white light or another type of multi-wavelength light.