A display device includes a base substrate; an outer bank on the base substrate and including an opening defining an emission area; a light-emitting element including at least an active layer and extending in a first direction in the emission area; a color mixing prevention member on the outer bank and having an opening defining a transmitting area; and a color control layer in the opening defined by the color mixing prevention member, wherein the transmitting area includes a first side at one side in the first direction and a second side at an opposite side in the first direction when viewed from top, and wherein a first distance between a first reference line and the first side of the transmitting area is equal to a second distance between the second side of the transmitting area and the first reference line.