Electro-optical device, method of driving the same, data line driving circuit, signal processing circuit, and electronic apparatus

A data line driving circuit of an electro-optical device in which a plurality of electro-optical elements are respectively provided corresponding to intersections of a plurality of scanning lines and a plurality of data lines, comprising:

• a plurality of signal processing circuits each of which supplies data signals to the data lines,
• wherein each data line driving circuit includes:
• a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating gray-scale levels of the electro-optical elements;
• a storage unit that stores correction data indicating correction values with respect to the gray-scale signals;
• a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit;
• and
• a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.

An electro-optical device comprising:

• a plurality of scanning lines;
• a plurality of data lines;
• a plurality of electro-optical elements that are respectively provided corresponding to intersections of the scanning lines and the data lines;
• a scanning line driving circuit that sequentially selects the plurality of scanning lines;
• and
• a data line driving circuit that includes a plurality of signal processing circuits for respectively supplying data signals to the data lines,
• wherein each of the signal processing circuits includes:
• a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating gray-scale levels of the electro-optical elements;
• a storage unit that stores correction data indicating correction values with respect to the gray-scale signals;
• a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit;
• and
• a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.

A method of driving an electro-optical device having a plurality of electro-optical elements whose gray-scale levels are varied according to data signals, comprising:

• generating gray-scale signals from gray-scale data designating the gray-scale levels of the electro-optical elements by first D/A conversion;
• generating correction signals from correction data stored in a storage unit by second D/A conversion that is different from the first D/A conversion in resolution;
• and
• synthesizing the gray-scale signals generated by the first D/A conversion with the correction signals generated by the second D/A conversion to generate the data signals.