| 摘要 |
<p>PURPOSE: A display device including a touch screen and a driving method are provided to remove a noise value when a touch coordinate is calculated, thereby increasing accuracy of calculating the touch coordinate. CONSTITUTION: A TSP(Touch Screen Panel) includes Tx lines; Rx lines which intersect with the Tx lines; and sensor nodes which are formed in intersecting units of the Tx lines and the Rx lines. A Tx driving circuit(32) supplies driving pulses to the Tx lines. An Rx driving circuit(34) converts signal voltage into touch low data by sampling the signal voltage of the sensor nodes which are received through the Rx lines. A touch controller(30) removes noise by calculating the amount of touch voltage change by using the touch low data. The touch controller estimates a coordinate of a touch input position by analyzing the amount of touch voltage change with a touch recognition algorithm.</p> |
