Display device and chip-on-film structure thereof

A display device, comprising a display panel and a chip-on-film structure, wherein the chip-on-film structure comprises a substrate, a plurality of first output pads, a plurality of second output pads, a plurality of first lead wires, and a plurality of second lead wires, the substrate having a surface that comprises a bonding zone, the plurality of first output pads and the plurality of second output pads being located in the bonding zone, the plurality of first lead wires and the plurality of first output pads being located on one common surface of the substrate, the plurality of first lead wires and the plurality of second lead wires being respectively located on two opposite surfaces of the substrate, each of the first lead wires being connected to one of the first output pads, each of the second lead wires being connected to the second output pads, the second lead wires each having a portion that corresponds to the bonding zone and has two terminal sections respectively opposite to the first output pads and the second output pads;

• and the display panel comprises a plurality of first input pads that are respectively corresponding, in a one to one manner, to the plurality of first output pads and a plurality of second input pads that are respectively corresponding, in a one to one manner, to the plurality of second output pads, the plurality of first input pads being electrically connected to the plurality of first output pads, the plurality of second input pads being electrically connected to the plurality of second output pads.