A touch-sensor-equipped display device has: a panel unit including a screen area in which units of detection constituting a touch-sensor function and pixels constituting a display function are formed in a matrix pattern; a plurality of shared electrodes which are formed in the screen area, parallel to an X-direction, and for both display drive and touch drive; a plurality of common electrodes for display drive which are parallel to the X-direction and respectively alternately disposed with the plurality of respective shared electrodes in a Y-direction; a plurality of detection electrodes which are parallel to the Y-direction and intersecting with the plurality of shared electrodes and the plurality of common electrodes; and the units of detection corresponding to respective capacitors formed by intersections of the plurality of shared electrodes and the plurality of detection electrodes.