A red pixel has a chromaticity coordinate in the CIE colorimetric system in use by a light emitting element containing quantum dots as a light source, satisfying 0.670≦x≦0.680, and a film thickness of 3.0 μm or less. A green pixel has a chromaticity coordinate in the CIE colorimetric system in use by the light emitting element as a light source, satisfying 0.690≦x≦0.710, and a film thickness of 3.0 μm or less. The color filter has at least one of the red pixel and the green pixel. A display device comprises a color filter having at least one of the red pixel and the green pixel, and the light emitting element containing quantum dots.