Patent attributes
Aspects of the invention can provide an electrostatic capacitance detection device having M number of row lines and N number of column lines arranged in a matrix of M rows and N columns, and an electrostatic capacitance detection element formed at the intersection thereof. The electrostatic capacitance detection element can include a signal detection element, a signal amplifying element and a column selection element and a row selection element. The signal detection element can include a capacitance detecting electrode, a capacitance detecting dielectric layer, and a reference capacitor. One of a pair of electrodes in the reference capacitor is coupled to the row line. Accordingly, the invention can achieve a superior electrostatic capacitance detection device.