Piezoelectric structure, liquid ejecting head and manufacturing method therefor

A piezoelectric structure, comprising: A vibration platform; A piezoelectric film; The vibration platform comprising a set of material and polycrystal material, connected with formed unit crystal element material different element unit of material, or connected with formed polycrystal material element different element one of a polycrystalline material, and a clamping the upper layer of the middle scale layer, the piezoelectric film with the vehicle-front or crystal or a unit crystal structure.