Patent ID: 7548234

Claim:
A driver circuit for driving an electro-optical device having a plurality of data lines and scan lines arranged in a matrix manner and a plurality of image signal lines for supplying an image signal to the data lines, the driver circuit comprising: a data line driving circuit for sequentially supplying a first sampling signal and a second sampling signal; and a plurality of sampling switches, each of the sampling switches being electrically connected to one of the data lines and one of the image signal lines, a plurality of pixel portions formed at the intersection of the data lines and scan lines, each sampling switch comprising: a capacitor having an upper capacitive electrode and a lower capacitive electrode, a first transistor electrically connected in series with a second transistor, a gate of the first transistor electrically connected to the data line driving circuit for receiving the first sampling signal and a source of the first transistor electrically connected to one of the image signal lines and a drain of the first transistor electrically connected to both the source of the second transistor and the upper capacitive electrode of the capacitor, a gate of the second transistor electrically connected to the data line driving circuit for receiving the second sampling signal, a drain of the second transistor electrically connected to one of the data lines to supply the image signal according to the second sampling signal, and the lower capacitive electrode electrically connected to one of the pixel portions.