Patent ID: 8736556

Claim:
A method of driving a display device comprising a plurality of pixels, a plurality of sensing units, and a plurality of sense data lines to which the plurality of sensing units are connected, comprising: reading sense signals from the sense data lines; determining a touch or not and a quantity of touches, and generating X-axis and Y-axis position data based on the sense signals; determining whether the touch is generated; determining, once the touch is generated, whether the quantity of touches is plural; and determining, when the quantity of touches is plural, whether the plural touches are generated in successive image frames, and touch positions based on the X-axis and Y-axis position data; and when the quantity of touches is plural and the plural touches are generated in successive image frames: setting the Y-axis position data to the Y-axis position data of a later of the successive image frames when the plural successive touches have occurred in the same column; setting the X-axis position data to the X-axis position data of the later of the successive image frames when the plural successive touches have occurred in the same row; and setting the X-axis and Y-axis position data to the respective X-axis and Y-axis position data of the later of the successive image frames when the plural successive touches have occurred in different rows and different columns.