1. A display device comprising: a display panel having a plurality of unit pixels, each unit pixel of the plurality of unit pixels comprising first and second sub-pixels alternately arranged in a same first vertical line and a third sub-pixel arranged in a second vertical line different than the first vertical line where the first and second sub-pixels are arranged; and an image processing unit for converting data such that first sub-pixels adjacent upward and downward to the second sub-pixel in each unit pixel are driven in cooperation with each other, and third sub-pixels adjacent left and right of the second sub-pixel in each unit pixel are driven in cooperation with each other.