Display device and method of driving the same

1 . A display device comprising:

a display panel including sub-pixels;

a display panel driver configured to control the display panel;

a touch panel including a touch sensor including a plurality of touch electrodes and a charger including a plurality of charge electrodes; and

a touch panel driver configured to provide a first charge voltage having a first phase to N first charge electrodes among the charge electrodes in a first charge period and provide the first charge voltage to M (M is different from N) second charge electrode among the charge electrodes in a second charge period, where N is a positive integer greater than or equal to 2 and M is a positive integer.

2 . The display device according to claim 1 , wherein the touch panel driver provides a second charge voltage having a second phase different from the first phase to a third charge electrode among the charge electrodes in the first charge period and provides the second charge voltage to a fourth charge electrode among the charge electrodes in the second charge period.

3 . The display device according to claim 2 , wherein the first charge period and the second charge period are alternately repeated.

4 . The display device according to claim 2 , wherein a first portion of the first charge electrodes is disposed adjacent to the third charge electrode in a first direction, and

a second portion of the first charge electrodes is disposed adjacent to the third charge electrodes in a direction opposite to the first direction.

5 . The display device according to claim 4 , wherein the third charge electrode is disposed between the second charge electrode and the fourth charge electrode.

6 . The display device according to claim 2 , wherein a minimum distance between the second charge electrodes and the fourth charge electrode is different from a minimum distance between the first charge electrodes and the third charge electrode.

7 . The display device according to claim 2 , wherein the touch panel driver provides a touch driving signal to the touch sensor in a first touch period and provides the first charge voltage and the second charge voltage to the charger in a second touch period.

8 . The display device according to claim 7 , wherein the touch panel driver does not provide the touch driving signal to the touch sensor in the second touch period.

9 . The display device according to claim 7 , wherein the second touch period includes the first charge period, the second charge period, and a discharge period, and

wherein the discharge period is disposed between the first charge period and the second charge period.

10 . The display device according to claim 9 , wherein the touch panel driver does not provide the first charge voltage and the second charge voltage to the charge electrodes in the discharge period.

11 . The display device according to claim 1 , wherein the display panel comprises:

a display area including the sub-pixels; and

a first peripheral area disposed adjacent to the display area,

wherein the charger comprises:

a charge area including the charge electrodes; and

a second peripheral area disposed adjacent to the charge area, and

wherein the first peripheral area overlaps the second peripheral area in a plan view.

12 . The display device according to claim 11 , wherein the charger further comprises a dummy charge electrode disposed in the second peripheral area.

13 . The display device according to claim 12 , wherein the touch panel driver provides the first charge voltage to the dummy charge electrode in at least one of the first charge period and the second charge period.

14 . The display device according to claim 1 , wherein the touch electrodes comprises:

a first touch electrode extending in a first direction; and

a second touch electrode extending in a second direction crossing the first direction, and

the charge electrodes extend in the first direction.

15 . The display device according to claim 14 , wherein the touch panel further comprises a first capacitor including a first electrode connected to the first touch electrode and a second electrode connected to at least one of the charge electrodes.

16 . The display device according to claim 14 , wherein the charger further comprises auxiliary electrodes extending in the second direction, and

wherein the touch panel further comprises a second capacitor including a first electrode connected to the second touch electrode and a second electrode connected to at least one of the auxiliary electrodes.

17 . A display device comprising:

a display panel including sub-pixels;

a display panel driver configured to control the display panel;

a touch panel including a touch sensor including a plurality of touch electrodes and a charger including a plurality of charge electrodes; and

a touch panel driver configured to provide a first charge voltage having a first phase to a first charge electrode among the charge electrodes in a first charge period, provide the first charge voltage to a second charge electrode among the charge electrodes in a second charge period, provide a second charge voltage having a second phase different from the first phase to a third charge electrode among the charge electrodes in the first charge period, and provide the second charge voltage to a fourth charge electrode among the charge electrodes in the second charge period,

wherein a minimum distance between the second charge electrode and the fourth charge electrode is different from a minimum distance between the first charge electrode and the third charge electrode.

18 . A method of driving a display device, the method comprising:

providing a first charge voltage having a first phase to N first charge electrodes among charge electrodes in a first charge period;

providing a second charge voltage having a second phase different from the first phase to a third charge electrode among the charge electrodes in the first charge period;

providing the first charge voltage to M (M is different from N) second charge electrode among the charge electrodes in a second charge period; and

providing the second charge voltage to a fourth charge electrode among the charge electrodes in the second charge period, where N is a positive integer greater than or equal to 2, and M is a positive integer.

19 . The method according to claim 18 , wherein a minimum distance between the second charge electrodes and the fourth charge electrode is different from a minimum distance between the first charge electrodes and the third charge electrode.

20 . The method according to claim 18 , further comprising:

providing a touch driving signal to a touch sensor in a first touch period.

21 . A display device comprising:

a display panel including sub-pixels;

a display panel driver configured to control the display panel;

a touch panel including a touch sensor including a plurality of touch electrodes and a charger including a plurality of charge electrodes; and

a touch panel driver configured to provide a first charge voltage having a first phase to a first charge electrode among the charge electrodes in a first charge period, provide the first charge voltage to a second charge electrode among the charge electrodes in a second charge period, provide a second charge voltage having a second phase different from the first phase to a third charge electrode among the charge electrodes in the first charge period, and provide the second charge voltage to a fourth charge electrode among the charge electrodes in the second charge period,

wherein the charger comprises:

a charge area including the charge electrodes;

a peripheral area disposed adjacent to the charge area; and

a dummy charge electrode disposed in the peripheral area.