Patent ID: 8044982

Claim:
A driving circuit of an electro-optical device that includes: scanning lines divided into two or more groups each including a predetermined number of scanning lines; data lines that intersect the scanning lines; pixels including pixel electrodes disposed at positions corresponding to intersections of the scanning lines and the data lines; two or more common electrodes that correspond to the two or more groups of scanning lines; and a liquid crystal that is held between the pixel electrodes and the common electrodes; wherein the driving circuit divides one field of one of the pixels into sub-fields and applies the one of the pixels with on or off voltages during the sub-fields to achieve a desired gray-scale level, the driving circuit comprising: a common signal supply circuit that supplies a common signal of either one of a first voltage and a second voltage different from the first voltage to each of the common electrodes; a scanning line driving circuit that selects the scanning lines; and a data line driving circuit that supplies a pixel located on the selected scanning line with an on voltage or an off voltage as a data signal through the data line that corresponds to the pixel, the supplied on voltage or off voltage corresponding to the gray-scale level specified for the pixel and to the current sub-field, wherein: during one specific sub-field, the data line driving circuit supplies a data signal of an off voltage regardless of the gray-scale level for the pixel, and after the specific sub-field ends, the common signal supply circuit switches a voltage applied to a common electrode of the two or more common electrodes, the common electrode of the two or more common electrode corresponding to the group of scanning lines that includes the selected scanning line, the common signal supply circuit switching the voltage from a first voltage to a second voltage that is different from the first voltage.