A display panel, a display control method and a display device are provided. The display panel includes a display region and a non-display region, and a plurality of pixel units distributed in the display region in an array. Each pixel unit of the plurality of pixel units includes sub-pixels of at least three colors. The display panel also includes a control unit disposed in the non-display region and configured, in a first display mode, to control the sub-pixels of a same color of at least two pixel units of the plurality of pixel units to share a data signal.