Display device with touch panel

A touch panel display device having an active matrix substrate, the active matrix substrate comprising:

• a plurality of gate lines;
• a plurality of pixel electrodes connected to the plurality of gate lines;
• a plurality of counter electrodes disposed to form a matrix and configured to form electrostatic capacitance between the plurality of pixel electrodes and the counter electrodes;
• and
• a plurality of touch sensor wires connected respectively to the plurality of counter electrodes,
• the touch panel display device further comprising:
• a control circuit configured to alternately switch between a gate scan period of sequentially switching the gate lines into a selected state in accordance with a predetermined indicated frequency in one frame period, and a sensor scan period of scanning each of segments by supplying a touch detection drive signal to the counter electrodes aligned along each of the gate lines by the segment and detecting electrostatic capacitance of the counter electrodes in each of the segments, wherein
• the one frame period includes a plurality of gate scan periods each corresponding to the gate scan period and a plurality of sensor scan periods each corresponding to the sensor scan period, and
• the control circuit scans each of the segments in a first scan mode of completing touch detection of scanning all the segments in the one frame period a number of times other than an integer.