A display device comprises: a backlight unit configured to generate first light; a transparent light emitting sheet arranged on the backlight unit and excited by the first light to generate second light having a different wavelength from the first light; a display panel configured to face the backlight unit with the transparent light emitting sheet therebetween and configured to receive the first and second light; and a photographing unit provided between the transparent light emitting sheet and the backlight unit and configured to photograph an image of a subject located in front of the display panel.
