Patent ID: 9063602
Filing Date: 2015-06-23
Classification: G06F

Abstract:
1. A display device comprising: a display panel comprising a plurality of pixels; a sensing electrode generating a sensing signal in response to an external stimulus; a sensing line connected to the sensing electrode; a sensing driver connected to the sensing line, receiving the sensing signal from the sensing line and storing the sensing signal as a specific register value, and outputting a position pulse according to the specific register value; and a signal controller determining a position of the external stimulus on the display panel based on the position pulse and a number of clock pulses of a predetermined clock signal having a single frequency, wherein the signal controller outputs a sensing scan signal to the sensing driver, and the sensing driver scans the sensing line while being synchronized with the sensing scan signal and the predetermined clock signal, wherein the position pulse comprises a high range corresponding to a part of the display panel where the external stimulus is applied to the display panel, and wherein the signal controller determines a position of the sensing line scanned by synchronizing with the predetermined clock signal corresponding to a third count value calculated based on a count value of first clock pulses of the predetermined clock signal from a point when the sensing scan signal is output to a point when the high range of the position pulse starts, and a count value of second clock pulses of the predetermined clock signal during the high range.