Electro-optical device, driving circuit, and electronic apparatus

An electro-optical device, comprising:

• a plurality of scanning lines, a plurality of data lines, and a plurality of common electrodes provided for the individual scanning lines;
• pixels which are arranged at intersections of the scanning lines and the data lines, which include pixel switching elements which have first ends connected to the corresponding data lines and which are brought into conduction states when selection voltages are applied to the corresponding scanning lines, which include pixel capacitors having first ends connected to second ends of the corresponding pixel switching elements and second ends connected to the corresponding common electrodes, and which have levels of gradation corresponding to holding voltages of the pixel capacitors;
• a scanning line driving circuit which applies the selection voltages to the plurality of scanning lines in a predetermined order;
• a common electrode driving circuit which drives the plurality of common electrodes individually;
• and
• a data line driving circuit which supplies, to pixels corresponding to scanning lines to which the selection voltages are applied, data signals having voltages corresponding to levels of gradation for the corresponding pixels through corresponding data lines,
• wherein the common electrode driving circuit includes, for individual common electrodes, switching circuits which are turned on or turned off in accordance with voltages held in gate electrodes thereof and which apply voltages of a low-level side or voltages of a high-level side to the corresponding common electrodes when being turned on, first voltage-applying circuits which apply on-voltages to the gate electrodes of the switching circuits when the selection voltages are applied to the scanning lines corresponding to the common electrodes so that the switching circuits are turned on, and second voltage-applying circuits which apply on-voltages to the gate electrodes of the switching circuits when instruction signals are transmitted through a predetermined control line in a period in which the selection voltages are not applied to the-scanning lines.

A driving circuit included in an electro-optical device, comprising:

• a plurality of scanning lines, a plurality of data lines, and a plurality of common electrodes provided for the individual scanning lines;
• pixels which are arranged at intersections of the scanning lines and the data lines, which include pixel switching elements which have first ends connected to the corresponding data lines and which are brought into conduction states when selection voltages are applied to the corresponding scanning lines, which include pixel capacitors having first ends connected to second ends of the corresponding pixel switching elements and second ends connected to the corresponding common electrodes, and which have levels of gradation corresponding to holding voltages of the pixel capacitors;
• a scanning line driving circuit which applies the selection voltages to the plurality of scanning lines in a predetermined order;
• a common electrode driving circuit which drives the plurality of common electrodes individually;
• and
• a data line driving circuit which supplies, to pixels corresponding to scanning lines to which the selection voltages are applied, data signals having voltages corresponding to levels of gradation for the corresponding pixels through corresponding data lines,
• wherein the common electrode driving circuit includes, for individual common electrodes, switching circuits which are turned on or turned off in accordance with voltages held in gate electrodes of the switching circuits and which apply voltages of a low-level side or voltages of a high-level side to the corresponding common electrodes when being turned on, first voltage-applying circuits which apply on-voltages to the gate electrodes of the switching circuits when the selection voltages are applied to the scanning lines corresponding to the common electrodes so that the switching circuits are turned on, and second voltage-applying circuits which apply the voltages of the low-level side or the voltages of the high-level side again to the individual common electrodes when instruction signals are supplied through a predetermined control line after an operation of applying the selection voltages to the scanning lines is terminated.

An electro-optical device, comprising:

• a plurality of scanning lines, a plurality of data lines, and a plurality of common electrodes provided for the individual scanning lines;
• pixels which are arranged at intersections of the scanning lines and the data lines, which include pixel switching elements which have first ends connected to the corresponding data lines and which are brought into conduction states when selection voltages are applied to the corresponding scanning lines, which include pixel capacitors having first ends connected to second ends of the corresponding pixel switching elements and second ends connected to the corresponding common electrodes, and which have levels of gradation corresponding to holding voltages of the pixel capacitors;
• a scanning line driving circuit which applies the selection voltages to the plurality of scanning lines in a predetermined order;
• a common electrode driving circuit which drives the plurality of common electrodes individually;
• and
• a data line driving circuit which supplies, to pixels corresponding to scanning lines to which the selection voltages are applied, data signals having voltages corresponding to levels of gradation for the corresponding pixels through corresponding data lines,
• wherein the common electrode driving circuit includes, for individual common electrodes, switching circuits which are turned on or turned off in accordance with voltages held in gate electrodes of the switching circuits and which apply voltages of a low-level side or voltages of a high-level side to the corresponding common electrodes when being turned on, first voltage-applying circuits which apply on-voltages to the gate electrodes of the switching circuits when the selection voltages are applied to the scanning lines corresponding to the common electrodes so that the switching circuits are turned on, and second voltage-applying circuits which apply the voltages of the low-level side or the voltages of the high-level side again to the individual common electrodes when instruction signals are supplied through a predetermined control line after an operation of applying the selection voltages to the scanning lines is terminated.