ELECTROMECHANICAL TRANSDUCER DEVICE DRIVING CIRCUIT AND RETINA SCAN DISPLAY APPARATUS HAVING THE SAME

摘要

A driving circuit capable of suppressing the power consumption required for driving a capacitive electromechanical transducer device. In order to drive a capacitive electromechanical transducer device (61), which comprises two electromechanical transducer parts, that is, a first capacitive electromechanical transducer part (150) and a second capacitive electromechanical transducer part (151) and operates on two-phase sinusoidal wave signals having mutually opposite phases, a resonant circuit is configured by providing an inductor (L1) that resonates with the first and second electromechanical transducer parts (150,151), and further it is arranged that the resonance frequency of the resonant circuit be approximately the same as the operation frequency of the electromechanical transducer device (61). Then, the resonant circuit configured as described above is used to drive the first and second electromechanical transducer parts (150,151).