Patent ID: 7812361

Claim:
A light emitting diode comprising: a substrate; a reflecting layer disposed on the substrate; an adhesive layer disposed on the reflecting layer; an active layer disposed on the adhesive layer, wherein the active layer comprises: a first semiconductor layer comprising an upper surface, a lower surface, and a second photonic crystal structure; the second photonic crystal structure comprising a lattice of blind holes, the lattice of blind holes of the second photonic crystal structure are formed on the lower surface of the first semiconductor layer; the lower surface of the first semiconductor layer is in contact with the adhesive layer, at least a portion of the adhesive layer is located in the lattice of blind holes; an active channel layer located on the upper surface of the first semiconductor layer, the active channel layer comprising an upper surface and a lower surface; and a second semiconductor layer located on the upper surface of the active channel layer; and a transparent electrode disposed on the second semiconductor layer, the transparent electrode comprising an upper surface and a lower surface, the lower surface of the transparent electrode is in contact with the second semiconductor layer, the transparent electrode comprising a first photonic crystal structure, the first photonic crystal structure comprising a lattice of blind holes, the lattice of blind holes of the first photonic crystal structure being formed on the upper surface of the transparent electrode.