A detection device capable of detecting an external proximity object is provided. The detection device includes a substrate; and a plurality of thin conductive wires including: a plurality of first thin conductive wires each including a plurality of first thin wire pieces; and a plurality of second thin conductive wires each including a plurality of second thin wire pieces, the first thin wire pieces and the second thin wire pieces being made of a metal material and each including a first end portion and a second end portion.