Disclosed is a display device that may include a display panel; and a switchable lens device on the display panel, wherein the switchable lens device comprises, a first substrate, a first lens layer having a first refractive index in a first direction and a second refractive index lower than the first refractive index in a second direction substantially perpendicular to the first direction, and having a plurality of convex surfaces, and a second lens layer between the first substrate and the first lens layer, the second lens layer having substantially the same refractive index as the first refractive index.