An array substrate includes a plurality of first pixel-unit columns and a plurality of second pixel-unit columns repeatedly alternating with each other along a first direction. The first pixel-unit column includes a plurality of first pixel-unit groups and a plurality of second pixel-unit groups repeatedly alternating with each other along a second direction. The second pixel-unit column includes a plurality of third pixel-unit groups and a plurality of fourth pixel-unit groups repeatedly alternating with each other along the second direction. Each of the first pixel-unit group, the second pixel-unit group, the third pixel-unit group, and the fourth pixel-unit group includes a plurality of sub-pixels arranged into a matrix. The first pixel-unit group and the second pixel-unit group have same quantities of rows and columns in one matrix. The third pixel-unit group and the fourth pixel-unit group have same quantities of rows and columns in one matrix.