<p>A display device according to an embodiment of the present invention includes a substrate part; a light emitting unit which includes a light emitting device mounted on the substrate part and a lens located on the upper side of the light emitting device; a reflection layer which is located on the upper side of the substrate part; an optical sheet which is located on the upper side of the reflection layer with a height separated from the light emitting unit; and a display panel which is located on the upper side of the optical sheet. The lens includes a top part hwich is convexly rounded with an aspheric shape and a bottom center part which is upwardly recessed from the bottom and is located in a direction in which a pair of prisms or laid triangular pillars are intersected.</p>
