Patent ID: 7724245

Claim:
An electronic circuit for driving a driven device, comprising: a driving transistor whose conduction state is set in accordance with a data voltage supplied through a data line so that the conduction state corresponds to the current level of the driving current supplied to the driven device; a capacitor whose one end is connected to the gate of the driving transistor and another end of which is connected to a power supply line; a first switching device for controlling electric connection between the data line and the driving transistor; and a second switching device serially connected to the driving transistor, the second switching device being connected between the driving transistor and the other end of the capacitor such that a drain of the second switching device is directly connected to a source of the driving transistor and a source of the second switching device is directly connected to the other end of the capacitor, the driving current being supplied to the driven device in at least a part of a time in which the second switching device is turned on, and the driving current being intercepted in at least a part of a time in which the second switching device is turned off.