Patent ID: 11868563
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. A touch panel device comprising:
a cover panel that has an operation surface on which a touch operation is performed and bends corresponding to a depressing force applied to the operation surface;
a touch sensor unit including touch sensor electrodes that output touch sensor signals corresponding to the touch operation;
an elastic member integrally formed of an elastic material that has a dielectric constant changing corresponding to a temperature and deforms due to the bending of the cover panel;
a first sensor unit that includes respective electrodes adjacent to top and bottom surfaces of the elastic member to detect a capacitance changing depending on the dielectric constant and a thickness of the elastic member;
processing circuitry
to estimate the temperature based on the capacitance detected by the first sensor unit;
to detect the depressing force based on the estimated temperature and the capacitance detected by the first sensor unit; and
to execute processing of the touch sensor signals based on the detected depressing force; and
a display panel unit that displays an image,
wherein the elastic member is provided between the display panel unit and the touch sensor unit.