Sensor device and method of driving the same

A sensor device comprising:

• a sensor unit including a plurality of first sensor electrodes and a plurality of second sensor electrodes, wherein the plurality of first and second sensor electrodes are configured to form a plurality of capacitors at a plurality of intersections of the plurality of first and second sensor electrodes;
• and
• a sensor driver configured to transmit a plurality of driving signals to the plurality of first sensor electrodes and receive a plurality of sensing signals from the plurality of second sensor electrodes,
• wherein the sensor unit includes a plurality of sensing areas,
• wherein a number of the plurality of sensing areas is NA, which is an integer greater than 2,
• wherein the sensor driver is configured to:
• time-divisionally sense each of the plurality of sensing areas once during a first sensing frame period, in a first order randomly determined for the first sensing frame period, wherein the first sensing frame period includes a plurality of first sensing periods, and a number of the plurality of first sensing periods is equal to the number of the plurality of sensing areas;
• time-divisionally sense each of the plurality of sensing areas once during a second sensing frame period including a plurality of second sensing periods, in a second order randomly determined for the second sensing frame period, wherein a number of the plurality of second sensing periods is equal to the number of the plurality of sensing areas;
• and
• wherein the second sensing frame period is consecutive to the first sensing frame period, and an initial sensing area among the plurality of sensing areas during an initial second sensing period of the second sensing frame period is set to be different than a last sensing area among the plurality of sensing areas during a last first sensing period of the first sensing frame period.