Patent ID: 9575608
Date: 2017-02-21
CPC Classifications: G01B,G06F

Claim:
1. A touch panel comprising: a dielectric film having a first main surface and a second main surface, which are opposite to each other; a piezoelectric film having a third main surface and a fourth main surface, which are opposite to each other, the piezoelectric film being superimposed on the dielectric film with the third main surface and the second main surface being opposite to each other; a first capacitance detection electrode disposed on the first main surface; a second capacitance detection electrode disposed between the second main surface and the third main surface, the second capacitance detection electrode being paired with the first capacitance detection electrode; a first piezoelectric voltage detection electrode disposed between the second main surface and the third main surface; and a second piezoelectric voltage detection electrode disposed on the fourth main surface, the second piezoelectric voltage detection electrode being paired with the first piezoelectric voltage detection electrode, wherein the first capacitance detection electrode includes plural first capacitance detection sub-electrodes that extend in a first direction and are disposed with a space therebetween, the second capacitance detection electrode includes plural second capacitance detection sub-electrodes that extend in a second direction orthogonal to the first direction and are disposed with a space therebetween, the first piezoelectric voltage detection electrode includes plural first piezoelectric voltage detection sub-electrodes that extend in the second direction and are disposed alternately between the plural second capacitance detection sub-electrodes, and the second piezoelectric voltage detection electrode has a shape opposing the first piezoelectric voltage detection electrode via the piezoelectric film.