PIEZOELECTRIC ACTUATOR, AN INK-JET HEAD INCLUDING THE SAME, AND A PIEZOELECTRIC ACTUATOR MANUFACTURING METHOD TO INCREASE THE NUMBER OF NOZZLES IN A UNIT AREA

摘要

PURPOSE: A piezoelectric actuator, an ink-jet head including the same, and a piezoelectric actuator manufacturing method are provided to enable the drive of a piezoelectric actuator at low voltage.;CONSTITUTION: A piezoelectric actuator comprises upper and lower electrodes(230,210) and a piezoelectric member(220). The upper and lower electrodes provide driving voltage. The piezoelectric member is formed by solidifying viscous piezoelectric liquid between the upper and lower electrodes and provides a driving force to the ink in a pressure chamber of an ink-jet head(100).;COPYRIGHT KIPO 2011