A method for manufacturing a touch sensor, the method comprising:
- sequentially forming a first blackened film layer, a metal film layer, and a second blackened film layer on opposite surfaces of a transparent substrate;
- and
- simultaneously forming, on a first surface of the transparent substrate, a plurality of first electrodes each including a first conductive pattern, a plurality of first connectors on ends of the plurality of first electrodes, a first terminal connectable to external wiring, and first routing wiring connecting the plurality of first connectors and the first terminal, and, on a second surface of the transparent substrate, a plurality of second electrodes each including a second conductive pattern, a plurality of second connectors on ends of the plurality of second electrodes, a second terminal connectable to external wiring, and second routing wiring connecting the plurality of second connectors and the second terminal,
- the first conductive pattern including a plurality of first thin metal wires extending in a first direction and a plurality of second thin metal wires extending in a second direction and intersecting with the plurality of first thin metal wires, the plurality of first thin metal wires and the plurality of second thin metal wires being in a mesh with a plurality of first openings arranged consecutively in the first direction and the second direction,
- the second conductive pattern including a plurality of third thin metal wires extending in the first direction without overlapping the plurality of first thin metal wires and a plurality of fourth thin metal wires extending in the second direction and intersecting with the plurality of third thin metal wires without overlapping the plurality of second thin metal wires, the plurality of third thin metal wires and the plurality of fourth thin metal wires being in a mesh with a plurality of second openings arranged consecutively in the first direction and the second direction,
- the plurality of first thin metal wires and the plurality of second thin metal wires commonly including a plurality of first bent wires at intersections of the plurality of first thin metal wires and the plurality of second thin metal wires,
- the plurality of first bent wires connecting facing first obtuse angles formed by the plurality of first thin metal wires and the plurality of second thin metal wires,
- the plurality of third thin metal wires and the plurality of fourth thin metal wires commonly including a plurality of second bent wires at intersections of the plurality of third thin metal wires and the plurality of fourth thin metal wires, and
- the plurality of second bent wires connecting facing second obtuse angles formed by the plurality of third thin metal wires and the plurality of fourth thin metal wires,
- each of the plurality of first thin metal wires including a first metal side extending from a first bent wire of the plurality of first bent wires to a first adjacent first bent wire of the plurality of first bent wires,
- each of the plurality of second thin metal wires including a second metal side extending from the first bent wire to a second adjacent first bent wire of the plurality of first bent wires,
- the first metal side and the second metal side facing each other across a connecting first bent wire of the plurality of first bent wires, the first metal side and the second metal side having a same length of 300 to 1300 μm, and
- first bent wires of the plurality of first bent wires at two ends of the first metal side or at two ends of the second metal side being parallel to each other and each having a length of 8 to 20 μm.