Electrooptic device, driving circuit, and electronic device

A driving circuit of an electrooptic device, comprising:

• a plurality of scanning lines;
• a plurality of data lines;
• first and second capacitor lines corresponding to each of the plurality of scanning lines, wherein the first capacitor line is separate from the second capacitor line;
• a common electrode;
• pixels corresponding to the intersections of the plurality of scanning lines and the plurality of data lines, the pixels each including:
• a pixel switching element connected at one end to a data line corresponding to the element itself, and brought into conduction when a scanning line corresponding to the element itself is selected,
• a pixel capacitor disposed between the pixel switching element and the common electrode, and
• a storage capacitor disposed between one end of the pixel capacitor and one of the first and second capacitor lines corresponding to the scanning line;
• a scanning-line driving circuit that selects the scanning lines in a predetermined order;
• and
• a capacitor-line driving circuit that shifts the voltage of a first capacitor line corresponding to one scanning line to a predetermined voltage when the one scanning line is selected, and when a scanning line apart from the one scanning line by predetermined number of lines is selected, changes the predetermined voltage by a predetermined value or holds the predetermined voltage;
• and when the one scanning line is selected, shifts the voltage of a second capacitor line corresponding to the one scanning line to the predetermined voltage, and when a scanning line apart from the one scanning line by predetermined number of lines is selected, holds the predetermined voltage or changes the predetermined voltage by the predetermined value;
• and
• a data-line driving circuit that applies a data signal to pixels corresponding to a selected scanning line via a data line, the data signal having a voltage corresponding to the gray level of the pixels,
• wherein
• the capacitor-line driving circuit comprises:
• first to fourth transistors corresponding to each row, wherein
• the gate electrodes of the first and second transistors corresponding to the first and second capacitor lines, respectively, are connected to the scanning line corresponding to the one scanning line, and the source electrodes of the first and second transistors are connected to the first feed line;
• the gate electrode of the third transistor is connected to a scanning line apart from the scanning line corresponding to the one capacitor line by predetermined number of lines, and the source electrode of the third transistor is connected to the second feed line;
• the gate electrode of the fourth transistor is connected to a scanning line apart from the scanning line corresponding to the one capacitor line by predetermined number of lines, and the source electrode of the fourth transistor is connected to the third feed line;
• and
• the drain electrodes of the first and third transistors are connected to the first capacitor line corresponding to the line, and the drain electrodes of the second and fourth transistors are connected to the second capacitor line corresponding to the line.

A driving circuit of an electrooptic device, comprising:

• a plurality of scanning lines;
• a plurality of data lines;
• first and second capacitor lines corresponding to each of the plurality of scanning lines, wherein the first capacitor line is separate from the second capacitor line;
• a common electrode;
• pixels corresponding to the intersections of the plurality of scanning lines and the plurality of data lines, the pixels each including:
• a pixel switching element connected at one end to a data line corresponding to the element itself, and brought into conduction when a scanning line corresponding to the element itself is selected;
• a pixel capacitor disposed between the pixel switching element and the common electrode;
• and
• a storage capacitor disposed between one end of the pixel capacitor and one of the first and second capacitor lines corresponding to the scanning line;
• a scanning-line driving circuit that selects the scanning lines in a predetermined order;
• and
• a capacitor-line driving circuit that shifts the voltage of a first capacitor line corresponding to one scanning line to a predetermined voltage when the one scanning line is selected, and when a scanning line apart from the one scanning line by predetermined number of lines is selected, changes the predetermined voltage by a predetermined value or holds the predetermined voltage;
• and when the one scanning line is selected, shifts the voltage of a second capacitor line corresponding to the one scanning line to the predetermined voltage, and when a scanning line apart from the one scanning line by predetermined number of lines is selected, holds the predetermined voltage or changes the predetermined voltage by the predetermined value;
• and
• a data-line driving circuit that applies a data signal to pixels corresponding to a selected scanning line via a data line, the data signal having a voltage corresponding to the gray level of the pixels,
• wherein a first end of the storage capacitor is connected to the pixel capacitor, and a second end of the storage capacitor is connected to only one of the first and second capacitor lines,
• wherein when the one scanning line is selected, the capacitor-line driving circuit connects the first capacitor line corresponding to the one scanning line to a first feed line that feeds a first capacitance signal of the predetermined voltage, and when a scanning line apart from the one scanning line by predetermined number of lines is selected, the capacitor-line driving circuit connects the first capacitor line to a second feed line that feeds a second capacitance signal of one of voltages higher and lower than the predetermined voltage by a predetermined value or of the predetermined voltage,
• wherein when the one scanning line is selected, the capacitor-line driving circuit connects the second capacitor line corresponding to the one scanning line to the first feed line, and when a scanning line apart from the one scanning line by predetermined number of lines is selected, the capacitor-line driving circuit connects the second capacitor line to a third feed line that feeds a third capacitance signal of the predetermined voltage or the other one of voltages higher and lower than the predetermined voltage by the predetermined value, and
• wherein the capacitor-line driving circuit comprises:
• first to fourth transistors corresponding to each row, wherein
• the gate electrodes of the first and second transistors corresponding to the first and second capacitor lines, respectively, are connected to the scanning line corresponding to the one scanning line, and the source electrodes of the first and second transistors are connected to the first feed line;
• the gate electrode of the third transistor is connected to a scanning line apart from the scanning line corresponding to the one capacitor line by predetermined number of lines, and the source electrode of the third transistor is connected to the second feed line;
• the gate electrode of the fourth transistor is connected to a scanning line apart from the scanning line corresponding to the one capacitor line by predetermined number of lines, and the source electrode of the fourth transistor is connected to the third feed line;
• and
• the drain electrodes of the first and third transistors are connected to the first capacitor line corresponding to the line, and the drain electrodes of the second and fourth transistors are connected to the second capacitor line corresponding to the line.