Patent ID: 8128208

Claim:
A liquid ejecting head comprising: a flow passage forming substrate that includes a plurality of pressure generating chambers juxtaposed to each other and each in communication with a nozzle for ejecting droplets; and piezoelectric elements disposed on the flow passage forming substrate with a diaphragm interposed therebetween, the piezoelectric elements including a lower electrode, a piezoelectric layer, and an upper electrode, wherein end faces of the lower electrode are covered with the piezoelectric layer, and wherein the end faces taper downward, wherein the piezoelectric layer tapers downward at its ends, the lower electrode has a width smaller than the width of each of the pressure generating chambers, the piezoelectric layer has a larger width than the lower electrode to cover end faces of the lower electrode, the diaphragm has a top layer formed of a titanium oxide (TiOx) insulator film, the lower electrode has a top layer formed of a lanthanum nickel oxide (LaNiyOx) orientation control layer, and the orientation control layer and at least part of the piezoelectric layer disposed on the orientation control layer are formed of perovskite crystals having a (111) preferred orientation.