Display module and method for driving same, and display device

A display device, wherein the display device is a near-eye light-field display device, the near-eye light-field display device comprising a display module, wherein the display device comprises:

• a base substrate;
• and
• a plurality of pixel circuits arranged in an array, a plurality of pixel electrodes arranged in an array, a liquid crystal layer, and a light source that are disposed on a side of the base substrate and successively arranged along a direction away from the base substrate;
• wherein the pixel circuit at least comprises a drive transistor, the drive transistor comprising a gate electrode, a first electrode, and a second electrode;
• and the pixel electrode at least comprises a reflective electrode;
• wherein the plurality of pixel electrodes are electrically connected to the plurality of pixel circuits in one-to-one correspondence, and an orthographic projection of at least one of the pixel circuits on the base substrate is within an orthographic projection of a pixel electrode corresponding to the pixel electrode on the base substrate;
• and the pixel electrode is configured to reflect light transmitted by the liquid crystal layer to the liquid crystal layer, such that the light is exited from a side, distal from the base substrate, of the liquid crystal layer;
• and
• the display module further comprises a first planarization layer and a protrusion layer, disposed between the reflective electrode and the pixel electrode, and successively arranged along the direction away from the base substrate, wherein a side, distal from the base substrate, of the protrusion layer is provided with a plurality of protrusions.