TOUCH INPUT DEVICE AND DISPLAY DEVICE

摘要

A touch input device that includes a touch sensor and a control unit. The touch sensor includes a base material, a piezoelectric film, a plurality of first detecting conductors and a plurality of second detecting conductors. The base material is a flat plate. The piezoelectric film is made of uniaxially stretched PLLA, and is arranged on one principal surface of the base material. The first detecting conductors are arranged on a surface of the piezoelectric film opposite to the base material. The plurality of second detecting conductors are arranged on a surface opposite to the surface of the base material which abuts on the piezoelectric film. The control unit detects an operation position and a press by using detection signals outputted from the first detecting conductors and the second detecting conductors.

主权项

1. A touch input device comprising:
a piezoelectric film; a plurality of first detecting conductors arranged on a first surface of the piezoelectric film; and a plurality of second detecting conductors arranged adjacent a second surface opposite to the first surface of the piezoelectric film such that at least part of the plurality of second detecting conductors face the first detecting conductors; and a control unit which receives detection signals outputted from the plurality of first detecting conductors and the plurality of second detecting conductors, uses the detection signals to detect an operation position and a press, and sets a side of each of the plurality of second detecting conductors as a reference potential upon the detection of the press.