An electronic device includes a touch panel that includes a touch sensor panel configured to detect coordinates of a touch position provided on a screen configured to display an object for an input operation; and a processor coupled to the touch panel and configured to: suppress output of coordinate information of a contact position on an invalid area when a contact to the invalid area set in a part of the screen of the touch sensor panel is detected; output coordinate information of a contact position of the contact to an area other than the invalid area when a contact to the area other than the invalid area is detected; and change the invalid area in accordance with a degree of overlap of a display area of the object and a standard invalid area.