A display device comprising: a first pixel and a second pixel, a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer wherein the light emitting layer comprises one or more light emitting elements in the first pixel and the second pixel, electrode barrier ribs (410; 411, 412) in the first pixel and the second pixel a first electrode and a second electrode on the electrode barrier ribs, and pixel barrier ribs surrounding the first pixel and the second pixel respectively, wherein, the color conversion layer comprises a first color conversion layer in the first pixel and a second color conversion layer in the second pixel, the color filter layer comprises a first color filter layer in the first pixel and a second color filter layer in the second pixel, wherein the light emitting elements are capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer comprises first color conversion particles capable of converting the first light into a second light (L') having a second wavelength longer than the first wavelength and second color conversion particles capable of converting the first light into a third light (L") having a third wavelength longer than the second wavelength, the first color filter layer is capable of transmitting the first light and is capable of blocking transmission of the second light and the third light, and the second color filter layer is capable of transmitting the second light and is capable of blocking transmission of the first light and the third light, and the electrode barrier ribs comprise a first electrode barrier rib and a second electrode barrier rib spaced apart from the first electrode barrier rib to face the first electrode barrier rib, each of the electrode barrier ribs protrudes upwards from a plane in which the light emitting elements are disposed, and the light emitting layer comprises a first region defined as a region between the first electrode barrier rib and the second electrode barrier rib and a second region defined as a space between the electrode barrier ribs and the pixel barrier ribs. a first pixel and a second pixel, a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer wherein the light emitting layer comprises one or more light emitting elements in the first pixel and the second pixel, electrode barrier ribs (410; 411, 412) in the first pixel and the second pixel a first electrode and a second electrode on the electrode barrier ribs, and pixel barrier ribs surrounding the first pixel and the second pixel respectively, wherein, the color conversion layer comprises a first color conversion layer in the first pixel and a second color conversion layer in the second pixel, the color filter layer comprises a first color filter layer in the first pixel and a second color filter layer in the second pixel, wherein the light emitting elements are capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer comprises first color conversion particles capable of converting the first light into a second light (L') having a second wavelength longer than the first wavelength and second color conversion particles capable of converting the first light into a third light (L") having a third wavelength longer than the second wavelength, the first color filter layer is capable of transmitting the first light and is capable of blocking transmission of the second light and the third light, and the second color filter layer is capable of transmitting the second light and is capable of blocking transmission of the first light and the third light, and the electrode barrier ribs comprise a first electrode barrier rib and a second electrode barrier rib spaced apart from the first electrode barrier rib to face the first electrode barrier rib, each of the electrode barrier ribs protrudes upwards from a plane in which the light emitting elements are disposed, and the light emitting layer comprises a first region defined as a region between the first electrode barrier rib and the second electrode barrier rib and a second region defined as a space between the electrode barrier ribs and the pixel barrier ribs.