Array substrate, method of manufacturing array substrate, display panel and display apparatus

An array substrate comprising:

• a substrate;
• a touch pad disposed on a side of the substrate;
• a first planarization layer disposed on a side of the touch pad facing away from the substrate;
• a first passivation layer disposed on a side of the first planarization layer facing away from the touch pad;
• a touch electrode layer disposed on a side of the first passivation layer facing away from the first planarization layer;
• a first via hole sequentially passing through at least the first planarization layer and the first passivation layer;
• and
• a pixel electrode layer disposed between the first planarization layer and the first passivation layer, and comprising a plurality of sub-pixel electrodes arranged in an array, the first via hole sequentially passing through the first planarization layer, the pixel electrode layer, and the first passivation layer,
• wherein the touch electrode layer is electrically connected to the touch pad through the first via hole, and
• wherein the touch electrode layer comprises a plurality of touch electrodes arranged in an array, and orthogonal projections of the touch electrodes on the substrate at most partially coincide with orthogonal projections of the sub-pixel electrodes on the substrate.