Patent ID: 8459767

Claim:
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, Vmin<Vo<Vmax (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.