Patent ID: 8487325

Claim:
A light emitting diode, comprising: a substrate; a plurality of pillar structures formed on the substrate, wherein each of the pillar structures comprises a first type semiconductor layer, an active layer, and a second type semiconductor layer, wherein the first type semiconductor layers are formed on the substrate, and the pillar structures are electrically connected with each other through the first type semiconductor layers; a filler structure formed between the pillar structures, wherein the filler structure includes a passivation layer formed on sidewalls of the pillar structures and surfaces of the first type semiconductor layers and the passivation layer is made of a first dielectric material having a chemical formula Al x In y Ga z ) 2-δ O 3 , wherein x+y+z=1 and 0≦δ<1; a transparent conductive layer, wherein the filler structure and the second type semiconductor layers of the pillar structures are covered with the transparent conductive layer; a first electrode in contact with the transparent conductive layer; and a second electrode in contact with the first type semiconductor layer.