a display panel, comprising a display region and a peripheral region surrounding the display region;

a plurality of light-emitting elements, configured to emit light to be irradiated to eyes of a user;

a plurality of photoelectric sensor assemblies, disposed in the peripheral region, wherein each of the photoelectric sensor assemblies is configured to receive optical signals, reflected via the eyes of the user, of the plurality of light-emitting elements, and convert the optical signals into electric signals, the electric signals being configured to determine a gaze position of the eyes of the user on the display panel; and

an optical structure, disposed on a side, distal from the display panel, of the photoelectric sensor assembly, an orthographic projection of the optical structure on the display panel being within the peripheral region, and the optical structure comprises a light shielding region and a plurality of light transmitting regions, wherein the plurality of light transmitting regions are in one-to-one correspondence to the plurality of photoelectric sensor assemblies, each of the light transmitting regions at least being configured to transmit the optical signal to a corresponding photoelectric sensor assembly.