| 摘要 |
<p>According to an embodiment of the present invention, the present invention can provide a touch panel display device including a touch sensing unit, which can prevent coupling noise by blocking application of common voltages on a driving electrode, which is not used for touch sensing, among driving electrodes even when capacitance between two lines is generated as a line for supplying driving voltages (TX CLK) is overlapped with a line for supplying common voltages. According to an embodiment of the present invention, the touch panel display device includes: the driving electrode which alternately repeats a display period and a touch sensing period during a one frame in multiple times and applies driving voltages; and a reception electrode which senses a touch signal. The touch panel display device includes a touch sensing unit. The touch sensing unit includes a plurality of control signal output devices and the driving electrodes which correspond to each control signal output device one to one. Each control signal output device outputs common voltages to the driving electrode in the display period. If one of the control signal output devices outputs driving voltages in the touch sensing period, common voltage supply of rest of the control signal output devices is blocked.</p> |
