| 摘要 |
The present invention relates to an apparatus for controlling a touch screen of a display device including an LCD display device having a driving unit for inversion-driving the voltage to be applied to both ends of a pixel, and a touch screen which is arranged on a front surface of the display device, and which has a capacitance-measuring unit for recognizing touch coordinates and outputting a touch value in accordance with the touch coordinates, wherein the apparatus comprises a noise-processing unit which is electrically connected to a sensing electrode of the touch screen, and which receives an inversion signal from the LCD display device and outputs, as a touch output value, the voltage of the inversion signal and a first output voltage or a second output voltage outputted by an operation of a comparator, using the fluctuation of an inputted voltage caused by noise generated by carrying out an inversion; and a control unit which reflects, to the capacitance measuring unit, the touch output value outputted from the noise-processing unit, and controls the display device in accordance with the touch of the user inputted from the touch screen. |
