Patent ID: 10569540

Abstract:
A liquid ejection head includes a chamber, and a piezoelectric device, wherein the piezoelectric device includes a first electrode, a piezoelectric layer, a second electrode, an insulating layer, a first wire electrically connected to the second electrode, and a second wire electrically connected to the second electrode, and the piezoelectric device has a first region in which the first electrode, the piezoelectric layer, and the second electrode are stacked, a second region which is located on a side adjacent to a first end of the piezoelectric layer and in which the first electrode, the piezoelectric layer, the insulating layer, and the first wire are stacked, and a third region which is located on a side adjacent to a second end of the piezoelectric layer opposite to the first end and in which the first electrode, the piezoelectric layer, the insulating layer, and the second wire are stacked.