Patent ID: 8459767
Filing Date: 2013-06-11
Classification: B41J,H01L

Abstract:
1. A liquid ejecting head comprising: a piezoelectric element having a piezoelectric layer and electrodes; the piezoelectric element is driven in a condition that the relationship between minimum voltage Vmin and maximum voltage Vmax, which are applied to the piezoelectric element, and peak voltage Vo satisfies the following expression 1, in the above expression 1, the peak voltage Vo is a voltage value at which a primary differential coefficient of displacement by voltage, which is obtained from a displacement-voltage curve, is at a maximum value, wherein the primary differential coefficient of displacement increases from Vmin to Vo at a greater rate than the primary differential coefficient of displacement decreases from Vo to Vmax, and wherein when a voltage difference between the minimum voltage Vmin and the maximum voltage Vmax is set to a given value, an intermediate value of the voltage difference is smaller than the peak voltage Vo.