Patent ID: 7427126

Claim:
A liquid transport device comprising: a channel unit having a plurality of pressure chambers arranged on a plane and a plurality of discharge ports for liquid each communicating with one of the pressure chambers; and a piezoelectric actuator which changes a volume of the pressure chambers, and is arranged on a surface of the channel unit, the piezoelectric actuator having a vibration plate insulative on at least one side thereof, wires which are disposed on the one side of the vibration plate, and each of which extends from a position facing one of the pressure chambers, an anisotropic conductive layer formed on the one side of the vibration plate continuously over the pressure chambers to cover the wires disposed on the one side of the vibration plate, the anisotropic conductive layer being compressed to be conductive in first regions each facing one of the pressure chambers while being insulative in a second region facing none of the pressure chambers, a piezoelectric layer formed on a side of the anisotropic conductive layer which is opposite to a vibration plate, and a first electrode formed continuously over the pressure chambers on a side of the piezoelectric layer which is opposite to the anisotropic conductive layer.