A display device has a base layer, including light-emitting regions of first to third colors, respectively, at least one light-receiving region, and a non-light-emitting region surrounding the light-emitting regions and the at least one light-receiving region; a display element layer disposed on the base layer, including first to third light-emitting elements each corresponding to the light-emitting regions of the first to third colors, respectively, and a light-receiving element corresponding to the at least one light-receiving region; and a color filter layer disposed on the display element layer and including first to third color filters, first regions each having one color filter corresponding to a respective one of the first to third color filters disposed therein and each overlapping a respective one of the first to third color light-emitting regions, and a second region in which two different color filters of the first to third color filters are stacked.