| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge head hardly damaging a piezoelectric actuator substrate of the liquid discharge head without increasing reduction of displacement amount.SOLUTION: A liquid discharge head includes: a first flow passage member having a plurality of discharge holes and a plurality of pressurizing chambers 10; a piezoelectric actuator substrate having a pressurizing section; and an insulating film 52a. The pressurizing section is disposed to overlap the pressurizing chambers 10 in a plan view. Between the film 52a and the piezoelectric actuator substrate, joining regions A joined to each other and non-joining regions B which are not joined to each other are disposed. The joining regions A are disposed to overlap portions other than the pressurizing chambers. The non-joining regions B are disposed to overlap the pressurizing chambers.SELECTED DRAWING: Figure 6 |
