Patent ID: 7928951
Filing Date: 2011-04-19
Classification: G09G

Abstract:
1. An electro-optical device comprising: a first substrate which includes a plurality of scanning lines; a plurality of data lines that are provided so as to be substantially orthogonal to the plurality of scanning lines; a plurality of common lines that are provided so as to be substantially parallel to the scanning lines; and a plurality of pixel circuits that are provided at each of intersections of the plurality of scanning lines and the plurality of data lines, each of the plurality of pixel circuits having: a second substrate which is provided opposite to the first substrate and has a plurality of common electrodes each connected to the plurality of common lines thereon; an electro-optical material which is provided between the first substrate and the second substrate; a common line driving circuit which includes a power supply that supplies, to the plurality of common lines, a driving signal having a first potential or a second potential higher than the first potential; a data line driving circuit which supplies each of image signals to each of the plurality of data lines at a potential higher than the first potential when the potential of each common electrode is the first potential, and supplies each of the image signals to the plurality of data lines at a potential lower than the second potential when the potential of each common electrode is the second potential; a scanning line driving circuit which supplies, to each of the plurality of scanning lines, each of the control signals for turning on and off each switching element; and an equalizing circuit which connects or disconnects the plurality of data lines to and from the plurality of common lines and equalizes each of the plurality of data lines with each of the plurality common lines, the common line driving circuit including a driving signal supplying circuit for supplying the driving signal having the first potential or the second potential and a driving signal supplying switch for connecting and disconnecting the driving signal supplying circuit to and from all the plurality of common lines at a same time.