A display panel and a display device are disclosed. The display panel includes a plurality of sub-pixel units arranged in an array which includes N rows and 4M columns, sub-pixel units in each row is divided into a plurality of sub-pixel unit groups, and each sub-pixel unit group includes a first sub-pixel unit, a second sub-pixel unit, a third sub-pixel unit and a fourth sub-pixel unit which are sequentially in four adjacent columns along a first direction.