A display device includes a plurality of sub-pixel groups. Each of sub-pixel groups includes a first sub-pixel located at a first column; a second sub-pixel located at a second column adjacent to the first column; a third sub-pixel located at a third column adjacent to the second column; a fourth sub-pixel located at a fourth column adjacent to the third column; and a fifth sub-pixel located at the third column and the fourth column; wherein height of first sub-pixel equals height of second sub-pixel, height of first sub-pixel is greater than heights of third sub-pixel, fourth sub-pixel and fifth sub-pixel, and height of the first sub-pixel is different from or equal to sum of heights of fifth sub-pixel and third sub-pixel or sum of heights of fifth sub-pixel and fourth sub-pixel; wherein height of fifth sub-pixel is different from or equal to heights of third sub-pixel and fourth sub-pixel.