According to one embodiment, a display device includes a display panel including a polymer dispersed liquid crystal layer, and a light-emitting module disposed along a side surface of the display panel. The light-emitting module includes a light-emitting element, a light guide disposed between the light-emitting element and the side surface, and a reflector. The light guide has a first surface and a second surface facing each other, a third surface facing the light-emitting element, and a fourth surface facing the side surface. The reflector is disposed on each of the first surface and the second surface.