Touch sensing device and electronic device having hybrid sensing structure

A touch sensing device being applicable to an electronic device, the electronic device including a touch manipulation unit disposed on a housing, the touch manipulation unit including a first touch sensing member and a second touch sensing member, for capacitive sensing, and a force sensing member for inductive sensing, the touch sensing device comprising:

• a first touch sensor device disposed on an internal surface of the first touch sensing member;
• a second touch sensor device disposed on an internal surface of the second touch sensing member;
• a force sensor device spaced apart from an internal surface of the force sensing member;
• an oscillation circuit configured to:
• generate a first oscillation signal, based on a change in capacitance in response to the first touch sensing member being touched;
• generate a second oscillation signal, based on a change in capacitance in response to the second touch sensing member being touched;
• and
• generate a third oscillation signal, based on a change in inductance depending on a change in spacing between the force sensing member and the force sensor device;
• and
• a touch detection circuit configured to adjust a threshold for force sensing through the force sensor device depending on positions of the first and second touch sensing members, based on the first and second oscillation signals.