MUTUAL-CAPACITANCE TOUCH INPUT SENSING METHOD USING A PLURALITY OF ELECTRODE PADS AND DEVICE FOR THE SAME

摘要

A touch input sensing device of the present invention comprises a plurality of electrode pads which are arranged in a matrix form along the vertical direction and horizontal direction. More particularly, the touch input sensing device of the present invention comprises a first electrode pad; a second electrode pad; fifth electrode pads of a first group for being adjacent to the first electrode pad and enclosing the first electrode pad; fifth electrode pads of a second group for being adjacent to the second electrode pad and enclosing the second electrode pad; a touch input sensing circuit of the first group for measuring a capacitance value which is formed between the first electrode pad and the fifth electrode pads of the first group by using an integrator of the first group connected to the fifth electrode pads of the first group; a touch input sensing circuit of the second group for measuring a capacitance value which is formed between the second electrode pad and the fifth electrode pads of the second group by using an integrator of the second group connected to the fifth electrode pads of the second group; ; and an electrode pad potential control unit for applying reference potential to the other electrode pad when a first potential, being different from the reference potential is applied to either the first electrode pad or the second electrode pad.