An electronic device includes an optical member including a light blocking layer including a first light emitting opening and a second light emitting opening each defined by adjacent side surfaces, a first color filter overlapping the first light emitting opening, and a second color filter overlapping the second light emitting opening, and a display panel including a first pixel configured to provide the first light emitting opening with light of a first color, and a second pixel configured to provide the second light emitting opening with light of a second color different from the light of the first color, and a surface area of the first light emitting opening is different from a surface area of the second light emitting opening.