Pixel circuits, display apparatuses including the pixel circuits, and methods of driving the display apparatuses

A display apparatus comprising:

• a plurality of scan lines to which a plurality of scan signals are applied;
• a plurality of data lines intersecting the plurality of scan lines and to which a plurality of data signals are applied;
• a first common power line to which a first common power is supplied;
• a second common power line to which a second common power is supplied;
• and
• a plurality of pixels at intersections of the plurality of scan lines and the plurality of data lines,
• wherein each of the plurality of pixels includes:
• a display element including a pixel electrode and an opposite electrode electrically connected to the first common power line;
• a first transistor including a first electrode electrically connected to one of the plurality of data lines and to which a data signal is applied, a second electrode electrically connected to a first node, and a first gate electrically connected to one of the plurality of scan lines and to which a scan signal is applied;
• a capacitor including a third electrode electrically connected to the first node and a fourth electrode;
• and
• a second transistor including a fifth electrode electrically connected to the pixel electrode, a sixth electrode electrically connected to the second common power line, and a second gate electrically connected to the first node.

A method of driving a display apparatus including a plurality of scan lines to which a plurality of scan signals are applied;

• a plurality of data lines intersecting the plurality of scan lines and to which a plurality of data signals are applied;
• a first common power line to which a first common power is supplied;
• a second common power line to which a second common power is supplied;
• and a plurality of pixels at intersections of a plurality of scan lines and a plurality of data lines, each of the plurality of pixels including a display element including a pixel electrode and an opposite electrode;
• a first transistor including a first electrode electrically connected to one of the plurality of data lines, a second electrode electrically connected to a first node, and a first gate electrically connected to one of the plurality of scan lines;
• a capacitor including a third electrode electrically connected to the first node and a fourth electrode;
• and a second transistor including a fifth electrode electrically connected to the pixel electrode, a sixth electrode, and a second gate electrically connected to the first node, the method comprising:
• an addressing operation of writing image information on all of the plurality of pixels by delivering, a plurality of data signals and a plurality of scan signals to the plurality of pixels;
• and
• a displaying operation of displaying an image according to the image information on each of the plurality of pixels by applying common power to all of the plurality of pixels.