A display device comprising a first pixel and a second pixel, the display device comprising: a light-emitting layer; color conversion layers disposed on the light-emitting layer; and color filter layers disposed on the color conversion layers, wherein the light-emitting layer comprises a first light-emitting element (350_2) disposed in the first pixel, and a second light-emitting element (350_2) disposed in the second pixel, wherein the color conversion layers comprise a first color conversion layer disposed in the first pixel and a second color conversion layer disposed in the second pixel, the color filter layers comprise a first color filter layer disposed in the first pixel and a second color filter layer disposed in the second pixel, the first light-emitting element and the second light-emitting element emit first light, a central wavelength range of the first light being a first wavelength, the first color conversion layer and the second color conversion layer contain color conversion particles that convert the first light into second light, a central wavelength range of the second light is a second wavelength longer than the first wavelength, the first color filter layer transmits the first light and blocks transmission of the second light, and the second color filter layer transmits the second light and blocks transmission of the first light, wherein the display device further comprises a third pixel, wherein the light-emitting layer further comprises a third light-emitting element (350_1) disposed in the third pixel, wherein the color conversion layers further comprises a third color conversion layer disposed in the third pixel, wherein the color filter layer further comprises a third color filter layer disposed in the third pixel, wherein the third light-emitting element emits third light, a central wavelength range of the third light being a third wavelength longer than the second wavelength, wherein the third color conversion layer contains the color conversion particle; that convert the first light into second light and wherein the third color filter layer blocks transmission of the first light and the second light and transmits the third light. a light-emitting layer; color conversion layers disposed on the light-emitting layer; and color filter layers disposed on the color conversion layers, wherein the light-emitting layer comprises a first light-emitting element (350_2) disposed in the first pixel, and a second light-emitting element (350_2) disposed in the second pixel, wherein the color conversion layers comprise a first color conversion layer disposed in the first pixel and a second color conversion layer disposed in the second pixel, the color filter layers comprise a first color filter layer disposed in the first pixel and a second color filter layer disposed in the second pixel, the first light-emitting element and the second light-emitting element emit first light, a central wavelength range of the first light being a first wavelength, the first color conversion layer and the second color conversion layer contain color conversion particles that convert the first light into second light, a central wavelength range of the second light is a second wavelength longer than the first wavelength, the first color filter layer transmits the first light and blocks transmission of the second light, and the second color filter layer transmits the second light and blocks transmission of the first light, wherein the display device further comprises a third pixel, wherein the light-emitting layer further comprises a third light-emitting element (350_1) disposed in the third pixel, wherein the color conversion layers further comprises a third color conversion layer disposed in the third pixel, wherein the color filter layer further comprises a third color filter layer disposed in the third pixel, wherein the third light-emitting element emits third light, a central wavelength range of the third light being a third wavelength longer than the second wavelength, wherein the third color conversion layer contains the color conversion particle; that convert the first light into second light and wherein the third color filter layer blocks transmission of the first light and the second light and transmits the third light.