A display device and a method for driving the display device are disclosed. The display device includes: a display array layer including a plurality of display pixel sets, each of the plurality of display pixel sets including at least one display pixel; and a lens array layer arranged at a light exit side of the display array layer and including a plurality of lens groups arranged in array, each of the plurality of lens groups including at least one varifocal lens. Each of the plurality of lens groups is configured to vary a focal length of the at least one varifocal lens such that at least one of the plurality of display pixel sets form different viewpoints at different display phases respectively in response to variation of the focal length.