TOUCH SENSOR AND ELECTRONIC DEVICE

摘要

A low cost touch sensor can, in conjunction with a detection of an input operation, perform detection related to a pressing force during the input operation. Upper part electrodes of the touch sensor are disposed such that they extend in an X axial direction and are arrayed in a Y axial direction that intersects the X axial direction. Furthermore, each upper part electrode comprises a plurality of upper part resistive films whose end parts in the X axial direction are electrically connected by a connection pattern. Lower part electrodes are disposed opposing the upper part resistive films and comprise lower part resistive films, whose contact surface area with the upper part resistive films varies in accordance with a pressing force that narrows the spacing to the upper part resistive films. A detection device detects contact between the upper part resistive films and the lower part resistive films based on the change in the resistance from the upper part electrodes to the lower part electrodes.

主权项

1. A touch sensor comprising:
a first electrode that comprises a plurality of lines of first resistive films, the plurality of lines of first resistive films being disposed to extend in a first direction and arrayed in a second direction that intersects the first direction, whose end parts in the first direction are electrically connected to each other; a first connection pattern for electrically connecting together the end parts in the first direction of the plurality of lines of the first resistive films; a second electrode that comprises at least one line of second resistive film disposed opposing the plurality of lines of first resistive films, the second electrode being arranged such that contact surface area between the at least one line of second resistive film and the plurality of lines of first resistive films varies in accordance with a pressing force that narrows a spacing between the plurality of lines of first resistive films and the at least one second resistive film; a second connection pattern for electrically connecting the end part in the second direction of the at least one second resistive film; and a detection device that, based on a change in a resistance value from the first electrode to the second electrode, detects a contact between the plurality of lines of first resistive films and the at least one line of second resistive film and detects the extent of the contact surface area between the plurality of lines of first resistive films and the at least one line of second resistive film based on a resistance value that is measured by a resistance measuring apparatus connecting to the first connection pattern and the second connection pattern.