Pressure detecting device with a shielding circuit removing effect of stray capacitance

摘要

A pressure sensing part including a sensing layer including a plurality of electrodes, a shield layer disposed on one surface of the sensing layer, a reference potential layer disposed on the other surface of the sensing layer, and a potential control part for controlling potential of the shield layer. Wherein when a dynamic potential having a first pattern is applied to the first electrode so as to measure a value relating to a first capacitance formed by the first one of the plurality of electrodes, Thereby applying a dynamic potential having the first pattern.