Patent ID: 8020967
Filing Date: 2011-09-20
Classification: B41J,H05K,Y10T

Abstract:
1. A liquid discharge apparatus which discharges a liquid, comprising: a liquid channel in which a discharge port through which the liquid is discharged is formed at one end of the liquid channel and a pressure chamber which stores the liquid is formed in an intermediate portion of the liquid channel; a piezoelectric layer which deforms to change a volume of the pressure chamber when a voltage is applied to the piezoelectric layer, the piezoelectric layer having one surface facing the pressure chamber; a power feeding electrode which is electrically connected to the piezoelectric layer to apply the voltage to the piezoelectric layer; and a liquid electroconductive material which electrically connects the other surface of the piezoelectric layer and the power feeding electrode; wherein a contact area is formed, on the other surface of the piezoelectric layer, the contact area overlapping with the pressure chamber, the piezoelectric layer and the liquid electroconductive material being electrically contacted via the contact area; and wherein a drive electrode overlaps with the contact area and is joined on the other surface of the piezoelectric layer, the piezoelectric layer and the power feeding electrode being connected electrically with the liquid electroconductive material via the drive electrode.