An array substrate includes a base substrate (10); a plurality of light emitting elements on the base substrate (10); a plurality of driving thin film transistors (T1) for driving light emission of the plurality of light emitting elements, each of the plurality of driving thin film transistors (T1) including a first active layer (AL-1); one or more power supply lines (PL) configured to supply a driving current respectively to the plurality of light emitting elements; and a light shielding layer (LS) configured to shield light from irradiating on the first active layer (AL-1), the light shielding layer (LS) being electrically connected to at least one of the one or more power supply lines (PL).