An organic light emitting display device including a plurality of pixels is provided according to an embodiment. Each of the plurality of pixels includes three sub pixels. The plurality of pixels include a first pixel having a green sub pixel and two red sub pixels, a second pixel having a green sub pixel and two blue sub pixels, the second pixel being adjacent to the first pixel in a first direction, a third pixel having a green sub pixel and two blue sub pixels, the third pixel being adjacent to the first pixel in a second direction, and a fourth pixel having a green sub pixel and two red sub pixels, the fourth pixel being adjacent to the second pixel in the second direction. In the organic light emitting display device according to an example embodiment of the present disclosure, sub pixels are asymmetrically disposed in pixels which are disposed in at least one direction, to reduce lattice artifact by the regular arrangement of the sub pixels.