Rotary input device

A rotary input device comprising:

• an operation knob including an upper surface and a lateral surface;
• an angle detector configured to detect a rotation angle of the operation knob;
• a kinesthetic haptic feedback part configured to provide at least one of a driving force or a braking force to the operation knob as kinesthetic haptic feedback;
• control circuitry configured to control the kinesthetic haptic feedback part;
• a lateral surface sensor electrode provided on the lateral surface of the operation knob;
• an electrostatic sensor configured to detect a contact of an operating body with the lateral surface sensor electrode;
• and
• a main body including the kinesthetic haptic feedback part, the angle detector, the electrostatic sensor, and a rotating shaft rotating integrally with the operation knob,
• wherein the control circuitry is configured to control the kinesthetic haptic feedback part so as to provide kinesthetic haptic feedback to the operation knob according to a detection result of the electrostatic sensor and a detection result of the angle detector,
• wherein the kinesthetic haptic feedback part is configured to provide the kinesthetic haptic feedback to the operation knob via the rotating shaft,
• wherein the angle detector is configured to detect a rotation angle of the rotating shaft as the rotation angle of the operation knob, and
• wherein the electrostatic sensor includes a substrate sensor electrode provided in the main body at a position at which the substrate sensor electrode can be electrostatically coupled with the lateral surface sensor electrode, and the electrostatic sensor is configured to detect the contact of the operating body with the lateral surface sensor electrode by detecting capacitance of the substrate sensor electrode.