Display device

1. A display device comprising:

a display panel including a display area, a frame area;

pixel electrodes including first pixel electrodes and second pixel electrodes in the display area;

share electrodes including first share electrodes opposed to the first pixel electrodes and second share electrodes opposed to the second pixel electrodes;

a display function layer controlled by the pixel electrodes and the share electrodes;

a driving circuit electrically connected to the first and second share electrodes, and configured to drive the first and second share electrodes; and

a first group of wirings coupled between the driving circuit and the first share electrodes in the frame area,

a second group of wirings coupled between the driving circuit and the second share electrodes,

wherein each of the first group of wiring is longer than each of the second group of wirings,

wherein the first and second share electrodes are driven with a display drive signal during a display period, and the first share electrodes are driven with a first touch detection drive pulse simultaneously during a first touch detection period, and the second share electrodes are driven with a second touch detection drive pulse simultaneously during a second touch detection period, and

wherein a width of the first touch detection drive pulse is longer than the second touch detection drive pulse.

2. The display device according to claim 1 , wherein

the display function layer is a liquid crystal layer.

3. The display device according to claim 1 , wherein,

in a touch detection area, capacitors are formed by each of the share electrodes.

4. The display device according to claim 1 , wherein,

the first group of wirings are disposed in a first region of the frame area and the second group of wirings are disposed in a second region of the frame area which is closer than the first region from the driving circuit;

the first group of wirings is respectively coupled to both ends of the corresponding first share electrodes among the share electrodes;

the second group of wirings is respectively coupled to both ends of the corresponding second share electrodes; and

the first and second touch detection drive pulses are sequentially applied to the first and second share electrodes from the driving circuit.

5. The display device according to claim 1 , wherein,

the first and second groups of wirings are disposed in the frame area;

the first and second groups of wirings are respectively coupled to first ends of the corresponding share electrodes; and,

the first and second touch detection drive pulses are sequentially applied to the first and second share electrodes of a touch detection area through the plurality of wirings.

6. The display device according to claim 1 , wherein,

the first group of wirings are disposed in a first region of the frame area and the second group of wirings are disposed in a second region of the frame area;

the first group of wirings is respectively coupled to first ends of the first share electrodes;

the second group of wirings is respectively coupled to second ends of the second share electrodes; and,

the first and second touch detection drive pulses are sequentially applied to the first and second share electrodes of a touch detection area through the wirings.

7. The display device according to claim 1 , further comprising a touch detect circuit configured to detect an external object in response to the first and second touch detection drive pulses applied to the share electrodes.

8. The display device according to claim 1 , further comprising a pulse changing circuit configured to change a pulse cycle of one or both of the first and second touch detection drive pulses applied to at least one of the share electrodes from the driving circuit.

9. The display device according to claim 1 , further comprising a pulse changing circuit configured to change a number of one or both of the first and second touch detection drive pulses applied to at least one of the share electrodes from the driving circuit.

10. The display device according to claim 8 , further comprising:

a noise detecting circuit configured to detect noise,

the pulse changing circuit configured to change the pulse cycle based on the noise detected by the noise detecting circuit.