Patent ID: 9389735
Filing Date: 2016-07-12
CPC Classification: G06F

Claim Text:
1. A touch sensing device comprising: a plurality of driving electrodes extended in a first axial direction; a plurality of sensing electrodes extended in a second axial direction intersecting with the first axial direction; an integrating circuit unit generating a first analog signal by integrating a change in capacitance generated in a first sensing electrode among the plurality of sensing electrodes and generating a second analog signal from a change in capacitance generated in a second sensing electrode adjacent to the first sensing electrode; and a subtracting unit calculating a difference in levels between the first and second analog signals, wherein in the first and second analog signals having opposing polarities, the integrating circuit unit inverts the polarities of the first and second analog signals by changing a positive polarity to a negative polarity for the first analog signal and changing a negative polarity to a positive polarity for the second analog signal in response to a reset section of the integrating circuit unit.