<p>PURPOSE: A touch panel using a nano wire is provided to employ a ZnO nano wire with a piezoelectric constant and a high penetration ratio as a piezoelectric device, thereby improving performance of the touch panel. CONSTITUTION: A first transparent electrode layer(12) is arranged on a first transparent substrate(11). A plurality of piezoelectricity nano wires(13) are perpendicularly arranged on the first transparent electrode layer. An optical permeability nano wire layer is formed by the piezoelectricity nano wires. A second transparent electrode layer(16) is arranged on the nano wire layer. A second transparent substrate(17) is arranged on the second transparent electrode layer. ZnO nano wires are able to be used as the piezoelectricity nano wires.</p>
