Patent ID: 8766943

Claim:
A method for improving the touch performance of a display having a touch sensor, comprising: converting a voltage of sensor nodes input from a touch screen integrated with a display panel into sensor data; detecting peak data from among the sensor data; calculating a first offset value for the X-axis based on sensor data of a left sensor node and a right sensor node and the peak data, the left sensor node and the right sensor node being disposed at both sides in the X-axis direction, with a center node being interposed therebetween, the center node being closest to a touch position and having the peak data; compensating the X coordinate of the touch position by adding the first offset value to the X coordinate of the center node to generate a first resulting value and multiplying the first resulting value by a first resolution ratio, obtained by dividing the horizontal resolution of the display panel by the horizontal resolution of the touch screen; calculating a second offset value for the Y-axis based on sensor data of an upper sensor node and a lower sensor node and the peak data, the upper sensor node and the lower sensor node being disposed at both sides in the Y-axis direction, with the center node being interposed therebetween; and compensating the Y coordinate of the touch position by adding the second offset value to the Y coordinate of the center node to generate a second resulting value and multiplying the second resulting value by a second resolution ratio, obtained by dividing the longitudinal resolution of the display panel by the longitudinal resolution of the touch screen.