| 摘要 |
PURPOSE: A shift register circuit is provided to output a signal according to an input signal by controlling a critical voltage of a transistor and changing a potential of a back gate electrode without changing a potential of a gate electrode. CONSTITUTION: A shift register circuit includes a logic circuit including a first transistor(11) and a second transistor(12). A first gate electrode(32) of the first transistor is connected to a source electrode or a drain electrode of the first transistor. An input signal is supplied to a second gate electrode(37) of the first transistor. A clock signal is supplied to a third gate electrode of the second transistor. The first transistor and the third gate electrode are formed with the same layer. |
