Driving circuit and driving method

A driving method of driving an electro-optical device having scan lines, data lines and pixel electrodes which are specified by the scan lines and the data lines, comprising:

• performing a scan line-inversion-driving in which a voltage level of a counter electrode is set in a scanning period to a voltage level different from a voltage level in a preceding scanning period, the counter electrode facing a pixel electrode with an electro-optical material interposed therebetween;
• performing a driving in an Mth scanning period in which the voltage level of the counter electrode is set to one of first and second voltage levels;
• providing a virtual scanning period next to the Mth scanning period, and performing a driving in the virtual scanning period, in which the voltage level of the counter electrode is set to one of the first and second voltage levels different from the voltage level to which the voltage level of the counter electrode has been set in the Mth scanning period;
• and
• performing a driving in a first scanning period coming next to the virtual scanning period, in which the voltage level of the counter electrode is set to the voltage level to which the voltage level of the counter electrode has been set in the Mth scanning period.

A driving method of driving an electro-optical device having scan lines, data lines and pixel electrodes which are specified by the scan lines and the data lines, comprising:

• performing a scan line-inversion-driving in which a voltage level of a counter electrode is set in a scanning period to a voltage level different from a voltage level in a preceding scanning period, the counter electrode facing a pixel electrode with an electro-optical material interposed therebetween;
• performing a driving in an Mth scanning period in which the voltage level of the counter electrode is set to one of first and second voltage levels;
• providing a virtual scanning period next to the Mth scanning period, and performing a driving in the virtual scanning period, in which the voltage level of the counter electrode is set to one of the first and second voltage levels different from the voltage level to which the voltage level of the counter electrode has been set in the Mth scanning period;
• and
• performing a driving in a first scanning period coming next to the virtual scanning period, in which the voltage level of the counter electrode is set to the voltage level to which the voltage level of the counter electrode has been set in the Mth scanning period,
• wherein a data line is driven by a first operational amplifier in a first period in which the voltage level of the counter electrode becomes the first voltage level,
• wherein the data line is driven by a second operational amplifier in a second period in which the voltage level of the counter electrode becomes the second voltage level, and
• wherein the data line is set to a high impedance state in a given period including a transition between a first period in which the voltage level of the counter electrode becomes the first voltage level and a second period in which the voltage level of the counter electrode becomes the second voltage level.

A driving method of driving an electro-optical device having scan lines, data lines and pixel electrodes which are specified by the scan lines and the data lines, comprising:

• performing a scan line-inversion-driving in which a voltage level of a counter electrode is set in a scanning period to a voltage level different from a voltage level in a preceding scanning period, the counter electrode facing a pixel electrode with an electro-optical material interposed therebetween;
• performing a driving in an Mth scanning period in which the voltage level of the counter electrode is set to one of first and second voltage levels;
• providing a virtual scanning period next to the Mth scanning period, and performing a driving in the virtual scanning period, in which the voltage level of the counter electrode is set to one of the first and second voltage levels different from the voltage level to which the voltage level of the counter electrode has been set in the Mth scanning period;
• and
• performing a driving in a first scanning period coming next to the virtual scanning period, in which the voltage level of the counter electrode is set to the voltage level to which the voltage level of the counter electrode has been set in the Mth scanning period,
• wherein, when the voltage level of the counter electrode changes from a second voltage level of a first power source side to a first voltage level of a second power source side and a voltage level of a data line changes to the second power source side due to capacitive coupling caused by parasitic capacitance between the counter electrode and the data line, the voltage level of the data line which has changed to the second power source side is changed to the first power source side and is set to a voltage level corresponding to a gray scale level, and
• wherein, when the voltage level of the counter electrode changes from the first voltage level of the second power source side to the second voltage level of the first power source side and the voltage level of the data line changes to the first power source side due to the capacitive coupling caused by the parasitic capacitance between the counter electrode and the data line, the voltage level of the data line which has changed to the first power source side is changed to the second power source side and is set to a voltage level corresponding to a gray scale level.