Array substrate and display panel

The invention provides an array substrate and a display panel. The array substrate comprises: a substrate; a planarization layer, which is located on the substrate and comprises a hollowed-out area extending in a first direction; an interlayer insulating layer, which is positioned between the substrate and the planarization layer, wherein a plurality of fan-out wires are arranged in the interlayer insulating layer; and at least one signal line, which is positioned between the plurality of fan-out wires and the planarization layer, wherein at least one side edge of the signal line in the first direction and at least one edge line of the hollowed-out area in the second direction have an edge overlapping area, and on the orthographic projection of the substrate, the fan-out wires extend and penetrate through the hollowed-out area, and the fan-out wires are not overlapped with at least one edge overlapping area. According to the invention, on the orthographic projection of the substrate, the fan-out wires and at