Touch Screen Controller generating single-ended touch signal, Touch Screen System and Operating Method thereof

The touch screen controller, a touch screen system and the display device including the same are disclosed. A touch screen controller according to one embodiment of the invention, the first and provides a first transmission signal by the sensing line and provides a second transmission signal to the second sensing line adjacent to the first sensing line, said first and second sensing receives a differential touch signal from the line, the differential using a single-ended touch signal from the touch data generation unit and the touch data generation section for generating a single-ended-touch signal through the calculation process of the touch signal touch coordinates and a control logic for calculating the first transmission signal with the second transmission signals is characterized in that at least one of the frequency and phase different.