| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit technique which enables reduction in power consumption and high definition of a display device. <P>SOLUTION: A switch controlled by a start signal is provided to a gate electrode of a transistor, which is connected to a gate electrode of a bootstrap transistor. When the start signal is input, a potential is supplied to the gate electrode of the transistor through the switch, and the transistor is turned off. The transistor is turned off, so that leakage of a charge from the gate electrode of the bootstrap transistor can be prevented. Accordingly, time for storing a charge in the gate electrode of the bootstrap transistor can be shortened, and high-speed operation can be performed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
