An array substrate includes a base substrate, a first conductive layer, a first electrode, an organic planarization layer and an organic active layer. The first conductive layer is provided on a side of the base substrate. The first electrode is provided on a side of the first conductive layer away from the base substrate, an orthographic projection of the first electrode on the base substrate overlapping an orthographic projection of the drain electrode on the base substrate. The organic planarization layer is provided on a side of the first electrode away from the base substrate, first via holes being provided in the organic planarization layer. The organic active layer is provided on a side of the organic planarization layer away from the base substrate, the organic active layer being connected to the source electrode by a first via hole and connected to the drain electrode by a first via hole.