Japan Display Inc.

Panasonic Liquid Crystal Display Co., Ltd.

Shouji Ikeda

Kouichi Anno

Hiroshi Esaka

An electrostatic capacitive coupling type touch panel including an input region having four sides, a peripheral region around the input region, terminals formed in the peripheral region along a first side of the input region, wirings formed in the peripheral region along second, third and fourth sides of the input region, and the input region having X and Y electrodes crossing. The wirings are connected between corresponding X or Y electrodes and wiring terminals plurality of terminals. A dummy wiring, which is not connected to any of the X electrodes or Y electrodes, is provided outside the wiring formed in a farthest position from the input region, and the dummy wiring extends through the peripheral region along the second, third and fourth sides of the input region, and electrically connects to at least one dummy wiring terminal.

Touch panel and display device with touch panel

An electrostatic capacitive coupling type touch panel including an input region having four sides, a peripheral region around the input region, terminals formed in the peripheral region along a first side of the input region, wirings formed In the peripheral region along second, third and fourth sides of the input region, and the input region having X and Y electrodes crossing. The wirings are connected between corresponding X or Y electrodes and wiring terminals plurality of terminals. A dummy wiring, which is not connected to any of the X electrodes or Y electrodes, is provided outside the wiring formed in a farthest position from the input region, and the dummy wiring extends through the peripheral region along the second, third and fourth sides of the input region, and electrically connects to at least one dummy wiring terminal.

An electrostatic capacitive coupling type touch panel in which a period before wiring formed outside an input region is chipped or wire-broken due to deterioration of a mask pattern can be prolonged. The touch panel has an input region and plural wirings formed around the input region. The input region has plural X electrodes and plural Y electrodes crossing the X electrodes. The plural wirings are connected to corresponding electrodes of the plural X electrodes and Y electrodes. The plural wirings respectively have a conductive layer and a metal layer formed on the conductive layer. The conductive layer is formed to be wider than the metal layer. The plural wirings have a corner. Among the plural wirings, in the wiring provided in the farthest position from the input region, the corner of the metal layer is chamfered.

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Chosei, Japan

Shouji Ikeda