A display device is capable of improving luminous efficiency and display quality and includes: a substrate; a thin film transistor on the substrate; a first electrode on the substrate and connected to the thin film transistor; a second electrode on the substrate and spaced apart from the first electrode; a plurality of light emitting elements between the first and second electrodes and electrically connected to each of the first and second electrodes; an insulating layer on the plurality of light emitting elements; and a reflective layer on the insulating layer. Each of the plurality of light emitting elements includes: a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer.