Electro-optical device, method of driving electro-optical device, and electronic apparatus
View Patent ↗An electro-optical device includes pixels that are provided to correspond to intersections of a plurality of rows of scanning lines and a plurality of columns of first data lines, each pixel having an pixel electrode, a common electrode that faces the pixel electrode, a first transistor that is turned on when a corresponding scanning line is selected to supply a data signal from a first data line to the pixel electrode, and a second transistor that is turned on when another scanning line than the corresponding scanning line is selected prior to the corresponding scanning line to supply a data signal from the first data line or a data line different from the first data line to the pixel electrode, a scanning line driving circuit that selects the plurality of rows of scanning lines according to a predetermined sequence, when one scanning line is selected, applies a first voltage so as to turn on the first or second transistor, when the selection ends, applies a second voltage so as to turn off the first and second transistors, and, when a scanning line next to the scanning line is selected, applies a third voltage between the first voltage and the second voltage so as to turn off the first and second transistors, and a data line driving circuit that supplies a data signal according to a grayscale level of a pixel of the selected scanning line through the first data line.
1. An electro-optical device comprising:
pixels that are provided to correspond to intersections of a plurality of rows of scanning lines and a plurality of columns of first data lines, each pixel having:
a pixel electrode;
a common electrode that faces the pixel electrode;
a first transistor that is turned on when a corresponding scanning line is selected to supply a data signal from the first data line to the pixel electrode;
a second transistor that is turned on when another scanning line other than the corresponding scanning line is selected prior to the corresponding scanning line to supply an inverted data signal from a second data line to the pixel electrode, the gate of the second transistor being directly connected to the scanning line other than the corresponding scanning line;
a scanning line driving circuit that selects the plurality of rows of scanning lines according to a predetermined sequence, and applies, to a corresponding scanning line, a first voltage so as to turn on the first and second transistors, a second voltage so as to turn off the first and second transistors, and a third voltage between the first voltage and second voltages so as to turn off the first and second transistors;
when another scanning line other than the corresponding scanning line is selected prior to the corresponding scanning line, the scanning line driving circuit applying the first voltage to the second transistor, and when the selection ends, applying the second voltage to the second transistor;
when the corresponding scanning line is selected, the scanning line driving circuit applying the first voltage to the first transistor, and when the selection ends, applying the second voltage to the first transistor;
after the corresponding scanning line is selected, the scanning line driving circuit applying the third voltage to the second transistor;
after a scanning line following the corresponding scanning line is selected, the scanning line driving circuit applying the third voltage to the first transistor; and
a data line driving circuit that supplies a data signal according to a grayscale level of a pixel positioned in the selected scanning line through the first data line.
2. A method of driving an electro-optical device, which has pixels that are provided to correspond to intersections of a plurality of rows of scanning lines and a plurality of columns of first data lines, each pixel having a pixel electrode, a common electrode that faces the pixel electrode, a first transistor that is turned on when a corresponding scanning line is selected to supply a data signal from the first data line to the pixel electrode, and a second transistor that is turned on when another scanning line other than the corresponding scanning line is selected prior to the corresponding scanning line to supply an inverted data signal from a second data line to the pixel electrode, the gate of the second transistor being directly connected to the scanning line other than the corresponding scanning line,
the method of driving the electro-optical device applying, to the first and second transistors, a first voltage so as to turn on the first and second transistor, applying a second voltage so as to turn off the first and second transistors, and applying a third voltage between the first and second voltages so as to turn off the first and second transistors, the method comprising:
selecting the plurality of rows of scanning lines according to a predetermined sequence;
applying, to a corresponding scanning line, a first voltage so as to turn on the first and second transistors, a second voltage so as to turn off the first and second transistors, and a third voltage between the first and second voltages so as to turn off the first and second transistors;
when another scanning line other than the corresponding scanning line is selected prior to the corresponding scanning line, applying the first voltage to the second transistor, and when the selection ends, applying the second voltage to the second transistor;
when the corresponding scanning line is selected, applying the first voltage to the first transistor, and when the selection ends, applying the second voltage to the first transistor;
after the corresponding scanning line is selected, applying the third voltage to the second transistor;
after a scanning line following the corresponding scanning line is selected, applying the third voltage to the first transistor; and
supplying a data signal according to a grayscale level of a pixel positioned in the selected scanning line through the first data line.