A common electrode includes a plurality of individual sections arranged so as to correspond to pressure chambers that are divided by a plurality of slits, and a base section that joins one end of the individual sections. The individual sections on a base section side gradually widen in plain view. The common electrode has thin film sections at the individual sections and a thick film section at the base section, and the film thickness gradually increases from the thin film sections towards the thick film section in a region between the thin film sections and the thick film section.