A display device includes a pixel including a first sub-pixel configured to emit a first color light and a second sub-pixel configured to emit a second color light that is different from the first color light. The display includes a substrate including an emission area and a non-emission area surrounding the emission area, a bank in the non-emission area on the substrate, a first electrode and a second electrode in each of the first sub-pixel and the second sub-pixel on the substrate, a light emitting element between the first electrode and the second electrode in the emission area, a wavelength conversion layer on the light emitting element in the emission area, and a protection layer on the substrate. The protection layer includes a first area in the emission area and located between the wavelength conversion layer and the light emitting element, and a second area in the non-emission area.