Patent ID: 11964481
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A liquid discharge head comprising:
a pressure chamber plate having a plurality of pressure chambers arranged in a first direction;
a vibrating plate disposed at a position further than the pressure chamber plate in a second direction intersecting the first direction;
at least one first electrode disposed at a position further than the vibrating plate in the second direction;
a piezoelectric layer disposed at a position further than the first electrode in the second direction;
a seed layer disposed between the piezoelectric layer and the vibrating plate, and contacting the at least one first electrode and the vibrating plate, and corresponds to the first area and the second area to control the orientation of the piezoelectric layer; and
a second electrode disposed at a position further than the first electrode in the second direction, wherein
the piezoelectric layer has a first area that does not overlap the first electrode in the second direction and a second area that overlaps the first electrode in the first direction, and
the first area exhibits a first preferred orientation when the second area is analyzed by X-ray diffraction, and
the second area exhibits the first preferred orientation when the second area is analyzed by X-ray diffraction.