Display device and driving method of the same

A method of driving a display device comprising a touch array comprising driving electrodes extending in a first direction and arranged in a second direction crossing the first direction, and sensing electrodes extending in the second direction and arranged in the first direction, the method comprising:

• transmitting uplink signals to an external device adjacent to the touch array in a third sensing mode such that the external device calculates position information using the uplink signals;
• sensing a touch adjacent to the touch array by applying a mutual driving signal to first ones of the driving electrodes to the exclusion of second ones of the driving electrodes, and subsequently applying the mutual driving signal to the second ones of the driving electrodes to the exclusion of the first ones of the driving electrodes, in a first sensing mode;
• sensing a touch adjacent to the touch array by applying a self-driving signal to the driving electrodes and to the sensing electrodes in a second sensing mode;
• sensing a touch adjacent to first areas of the touch array to the exclusion of second areas of the touch array in the first sensing mode;
• and
• sensing a touch adjacent to the second areas of the touch array to the exclusion of the first areas in the first sensing mode,
• wherein the sensing the touch adjacent to the touch array in the second sensing mode, the sensing the touch adjacent to the first areas of the touch array in the first sensing mode, the transmitting the uplink signals through the touch array in the third sensing mode, and the sensing the touch adjacent to the second areas of the touch array in the first sensing mode are sequentially performed.

A method of driving a display device comprising a touch array comprising dot electrodes comprising first to zth groups arranged in a first direction and in a second direction crossing the first direction, and not overlapping each other, the method comprising:

• transmitting uplink signals through the touch array in a third sensing mode such that an external device adjacent to the touch array is configured to calculate position information using the uplink signals;
• sensing a touch adjacent to the touch array by applying a self-driving signal to the dot electrodes in a second sensing mode;
• and
• sequentially:
• sensing a touch adjacent to a first plurality of the dot electrodes of the second to zth groups in the second sensing mode;
• transmitting the uplink signals through the dot electrodes of the first group in the third sensing mode;
• and
• sensing a touch adjacent to a second plurality of the dot electrodes of the second to zth groups, which is different from the first plurality of the dot electrodes, in the second sensing mode,
• wherein z is a positive integer.