The disclosure provides a display device including a first pixel unit and a second pixel unit. The first pixel unit configured to emit a red light, including a first light emitting element, a light conversion element and a first color filter. The second pixel unit configured to emit a blue light, including a second light emitting element and a second color filter. The first color filter is partially overlapped with the second color filter in a normal direction of the display device, and a ratio of a lighting area of the first pixel unit to a lighting area of the second pixel unit is ranged from 1.02 to 1.84.