Patent ID: 8284182

Claim:
An inverter circuit comprising: a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor and a sixth transistor each having channels of same conduction type; a first capacitive element, a second capacitive element and a third capacitive element; and a first input terminal, a second input terminal and an output terminal, wherein the first transistor makes or breaks electric connection between the output terminal and a first voltage line in response to a potential difference between a voltage of the first input terminal and a voltage of the first voltage line or a potential difference corresponding thereto, the second transistor makes or breaks electric connection between a second voltage line and the output terminal in response to a potential difference between a voltage of a first terminal and a voltage of the output terminal or a potential difference corresponding thereto, the first terminal being a source or a drain of the fifth transistor, the third transistor makes or breaks electric connection between a gate of the fifth transistor and the third voltage line in response to a potential difference between the voltage of the first input terminal and a voltage of a third voltage line or a potential difference corresponding thereto, the fourth transistor makes or breaks electric connection between the first terminal and the fourth voltage line in response to a potential difference between a voltage of the second input terminal and a voltage of a fourth voltage line or a potential difference corresponding thereto, the fifth transistor makes or breaks electric connection between a fifth voltage line and the first terminal in response to a voltage between terminals of the first capacitive element or a voltage corresponding thereto, the sixth transistor makes or breaks electric connection between the gate of the fifth transistor and the sixth voltage line in response to a potential difference between the voltage of the second input terminal and a voltage of a sixth voltage line or a potential difference corresponding thereto, the first and second capacitive elements are connected in series between the first input terminal and the gate of the fifth transistor, an electrical connection point between the first and second capacitive elements is electrically connected to the first terminal, and the third capacitive element is connected between the first terminal and a gate of the fourth transistor.