| 摘要 |
PURPOSE: A display device is provided to periodically apply a ground voltage to four ITO(Indium Tin Oxide) signal lines by controlling a switch unit. CONSTITUTION: A touch panel(150) outputs touch information through first to fourth signal lines. A touch panel controller(140) recognizes the signal of the touch panel. A switch unit(160) periodically offers a GND(Ground) voltage to the signal line. In order to periodically connect the signal line to the GND voltage, a switch enable signal generator(190) generates a switch enable signal for the control of the switch unit. |
