Liquid dispensing head

Abstract

This prevents or suppresses damage to piezoelectric elements that are superimposed on the corners of the pressure chamber. [Solution] A liquid discharge head comprising a pressure chamber substrate having a pressure chamber space that forms a pressure chamber and a flow path space that forms a flow path connected to the pressure chamber, a diaphragm that overlaps the pressure chamber substrate and covers at least a part of the pressure chamber space, thereby constituting one surface of the pressure chamber, and a piezoelectric element formed on the diaphragm, wherein the side wall of the pressure chamber substrate forms a corner at the connection point between the pressure chamber and the flow path, and when the pressure chamber is viewed in plan from the diaphragm side, the active part of the piezoelectric element, which is the part in which the piezoelectric layer is sandwiched between the lower electrode and the upper electrode, overlaps with a part of the side wall on the pressure chamber side that forms a corner at the longitudinal end of the active part, but does not overlap with the corner.

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