A control device (30) includes a detection unit (303), a specifying unit (304), and a phase offset control unit (307). The detection unit (303) detects a contact position on a display (10) provided with a plurality of drive units that performs tactile presentation. The specifying unit (304) specifies, based on the contact position detected by the detection unit (303), a target phase offset, which is a phase offset being an acquisition target of a plurality of drive signals each of which drives each of the plurality of drive units (21 and 22). The phase offset control unit (307) adjusts the phase offset of the plurality of drive signals so as to obtain the target phase offset specified by the specifying unit (304).