A micro light emitting diode (LED), including a first semiconductor layer doped with an n-type dopant; a second semiconductor layer doped with a p-type dopant; an active layer arranged between the first semiconductor layer and the second semiconductor layer, and configured to provide light; a first side surface including a vertical side surface of the first semiconductor layer; a second side surface tilted with respect to the first side surface, and including a first tilted side surface of the active layer and a second tilted side surface of the second semiconductor layer; an insulating layer arranged to surround the first side surface and the second side surface; and a reflective layer arranged to partially surround the insulating layer in an area of the insulating layer corresponding to the second side surface.