Patent ID: 7712878
Filing Date: 2010-05-11
Classification: B41J,H01L,Y10T

Abstract:
1. A liquid ejecting head comprising: a flow channel substrate having a pressure generating chamber communicating with a nozzle aperture through which liquid is ejected; and a piezoelectric element disposed on one surface of the flow channel substrate, the piezoelectric element including a common electrode, a piezoelectric layer, and an individual electrode, the piezoelectric layer being made of lead zirconate titanate having a rhombohedral or monoclinic crystal structure preferentially oriented in the (100) plane, the piezoelectric layer satisfying the relationship 33%≦2Pr/2Pm≦46%, wherein Pm represents the saturated polarization of the piezoelectric layer and Pr represents the residual polarization of the piezoelectric layer.