One chip touch panel driving device, touch panel device including the same, and its driving method

An embodiment of the present invention relates to a one chip touch panel driving device, a touch panel device including the same, and a driving method thereof, which integrally arrange a touch driving part and a force driving part, and easily perform a force sensing driving. According to an embodiment of the present invention, the touch panel device provides a bypass path transmitting a second touch sensing signal to a driving part without passing through a sensing unit. Therefore, the touch panel device performs both a touch sensing through a first touch sensing signal and a force sensing through the second touch sensing signal through one driving part and prevents the wrong second touch sensing signal due to the sensing unit from being transmitted to the driving part, thereby facilitating the force sensing.