A display panel includes a substrate, a first stacking unit, and a second stacking unit. The first stacking unit is disposed on the substrate and connected to a scan line. The first stacking unit includes a first conducting layer, a second conducting layer, at least one first through hole, and a first protruding portion. The first conducting layer is interposed between the second conducting layer and the substrate. The first through hole connects the first conducting layer and the second conducting layer. The position of the first protruding portion is relative to the position of the second protruding portion.