Liquid ejection head and actuator

JP7600625B2Active Publication Date: 2024-12-17SEIKO EPSON CORP
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Patent Information

Application Number
JP2020182868
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-10-30
Publication Date
2024-12-17
Estimated Expiration
2040-10-30

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Abstract

To provide a liquid discharge head and an actuator which suppress deterioration of discharge performance and durability performance.SOLUTION: A liquid discharge head includes: a pressure chamber substrate which has a plurality of pressure chambers arranged in a first direction; a diaphragm which is arranged in a second direction, which intersects the first direction, with respect to the pressure chamber substrate; a first electrode arranged in the second direction with respect to the diaphragm; a piezoelectric layer arranged in the second direction with respect to the first electrode; and a second electrode arranged in the second direction with respect to the first electrode. The piezoelectric layer includes a first region which does not overlap the first electrode in the first direction, and a second region which overlaps the first electrode in the first direction. When the piezoelectric layer is analyzed by an X-ray diffraction method, the first region is preferentially oriented to a first plane orientation, and the second region is preferentially oriented to the first plane orientation.SELECTED DRAWING: Figure 5
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Citation Information

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