Patent ID: 7592983

Claim:
An electro-optical device comprising: a plurality of pixel circuits that are disposed to correspond to intersections of a plurality of scanning lines and a plurality of data lines; a scanning line driving circuit that sequentially selects the plurality of scanning lines to apply a selection voltage to the selected scanning line; a data line driving circuit that applies any one of an on voltage and an off voltage to the plurality of data lines in accordance with gray-scale levels of pixel circuits corresponding to intersections of the data lines and the selected scanning line by the scanning line driving circuit; and a signal supply circuit that supplies a driving signal, whose level periodically changes, to signal supply lines, wherein each of the pixel circuits has: a first transistor including a gate electrode, a first terminal and a second terminal; an electro-optical element that is disposed between the first terminal of the first transistor and ground; a first capacitor dispose between the second terminal of the first transistor and a corresponding signal supply line; a second capacitor disposed between the gate electrode of the first transistor and ground; and a second transistor including a gate electrode, a first terminal and a second terminal, the gate electrode connected to a corresponding scanning line, the first and second terminals of the second transistor disposed between a corresponding data line and the gate electrode of the first transistor, wherein the scanning line driving circuit respectively selects the plurality of scanning lines for respective subfields included in one field, the data line driving circuit applies any one of the on voltage and the off voltage to the data lines for each subfield in accordance with the gray-scale levels of the pixel circuits, the signal supply circuit supplies the driving signal, whose waveform changes for each subfield, to the corresponding signal supply line, wherein the signal supply circuit supplies the driving signal, whose frequency changes for each subfield, to the corresponding signal supply line.