A light emitting device, including a first electrode; a hole transport area on the first electrode; a first light emitting layer on the hole transport area, the first light emitting layer emitting a first color, and having a first thickness; a second light emitting layer adjacent to one side of the first light emitting layer, the second light emitting layer emitting a second color, and having a second thickness; a first shadow layer on the first light emitting layer, the first shadow layer including a same material as the second light emitting layer, and first shadow layer having a thickness corresponding to about 1% of the second thickness; an electron transport area on the first light emitting layer, the second light emitting layer, and the first shadow layer; and a second electrode on the hole transport area.