Patent attributes
A liquid discharge head includes a pressure chamber substrate provided with a plurality of pressure chambers, a piezoelectric element row in which a plurality of piezoelectric elements that are provided to correspond to the plurality of pressure chambers respectively and that generate a pressure for discharging a liquid are arranged in a predetermined direction, and a protection portion positioned opposite to the plurality of pressure chambers with respect to the piezoelectric element row, and forming a space common to the plurality of piezoelectric elements, in which in regard to a first portion of the protection portion and a second portion of the protection portion having a position different from the first portion in the predetermined direction, a rigidity of the first portion is higher than a rigidity of the second portion.
