Provided is a tiled display device including a first sub-display panel on which a plurality of unit pixels is formed, and a second sub-display panel on which a plurality of unit pixels is formed, and located adjacent to the first sub-display panel, wherein each of the unit pixels includes a display element for emitting colored light, and a plurality of sub-pixels having a pixel circuit for driving the display element, and wherein an arrangement order of sub-pixels in the unit pixels corresponding to a current row, and an arrangement order of the sub-pixels in the unit pixels corresponding to a previous row or a next row, are different from each other.