Provided are a display device and a driving method therefor. Each pixel island in a display panel is divided into a plurality of sub-pixel subdivision units, different monocular viewpoint images are formed by rendering different grayscales for different sub-pixel subdivision units, and a main lobe angle of each lens is adjusted to satisfy that the monocular viewpoint images displayed by the sub-pixel subdivision units in a pixel island are projected to a corresponding independent visible region respectively through different lenses to form a viewpoint, so as to satisfy conditions for achieving super-multi-viewpoint 3D display.