Abstract: Discussed is a display device including a semiconductor light emitting device. A display device can include a substrate, first assembly electrodes, second assembly electrodes and the first assembly electrodes spaced apart from each other on the substrate, an insulating layer disposed on the second assembly electrode, an assembly barrier wall including a predetermined assembly hole and disposed on the insulating layer, a plating layer electrically connected to the first assembly electrode and the second assembly electrode, and a semiconductor light emitting device disposed in the assembly hole and electrically connected to the first assembly electrode and the second assembly electrode by the plating layer.

Abstract: A rare-earth magnet according to an embodiment of the present invention comprises: a rare-earth magnet precursor including a composition of (R1(1-x)R2x)yFe(100-y-z-v-w)CozBvTMlw in which R1 comprises at least one of Nd or Pr, and R2 comprises Ce; and a diffusion metal including a composition of (LRE(100-p-q)HREp)TM2q, and diffused on the surface of the rare-earth magnet precursor, wherein the LRE in the diffusion metal can comprise light rare earth including Y, and the HRE can comprise heavy rare earth.