Patent ID: 7705818

Claim:
An electro-optical device comprising: a plurality of scanning lines that extend in a row direction; a plurality of data lines that extend in a column direction, tile data lines being grouped into data line blocks each composed of a separate plurality of data lines; a plurality of pixels which correspond to intersections of the scanning lines and the data lines and whose gray-scale levels are designated by data signals supplied through the data lines; a common electrode that is provided opposite to the pixel electrodes; a shift register that outputs sampling signals; a sampling circuit including sampling switch blocks that correspond to the data line blocks and that receive the sampling signals one sampling switch block at a time in a sequential manner, each sampling switch block having plural sampling switches that simultaneously sample data signals to the data lines of the corresponding data line block based on a received sampling signal; a data signal supply circuit that switches a potential of the data signal between a higher level and a lower level than a predetermined potential in every predetermined period and then alternately outputs the potentials accordingly; and a correction circuit that superimposes correction signals on the data signals, the correction signals corresponding to the potentials of the data lines and correcting errors in the potentials of the data lines based on a difference between a pushdown amount of tile potential of a data line of a first data line block that is adjacent to a data line of an adjacent data line block and a pushdown amount of the potential of a data line of the first data line block located at a position other than adjacent to a data line of an adjacent data line block.