Pixel circuit and display device including the same

A pixel circuit comprising:

• a driving element DT including a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node;
• a first capacitor C1 connected between the second node and the fourth node;
• a second capacitor C2 connected between the third node and the fourth node;
• a light emitting element EL configured to be driven by a current flowing through the driving element;
• a first switch element T11 configured to be turned on in response to a gate-on voltage of a first gate signal SCAN1 to supply a data voltage to the fourth node;
• a second switch element T12 configured to be turned on in response to a gate-on voltage of a second gate signal SCAN2 to supply an initialization voltage to the fourth node;
• a third switch element T13 configured to be turned on in response to a gate-on voltage of a third gate signal SCAN3 to supply the initialization voltage to the second node;
• a fourth switch element T14 configured to be turned on in response to the gate-on voltage of the third gate signal SCAN3 to supply a reference voltage to the fifth node;
• a fifth switch element T15 configured to be turned on in response to a gate-on voltage of a fifth gate signal EM1 to supply a pixel driving voltage to the first node;
• and
• a sixth switch element T16 configured to be turned on in response to a gate-on voltage of a sixth gate signal EM2 to electrically connect the third node to the fifth node,
• wherein an anode electrode of the light emitting element is connected to the fifth node.

A display device comprising:

• a display panel in which a plurality of data lines, a plurality of gate lines, a plurality of power lines, and a plurality of pixel circuits are disposed;
• a data driver configured to output a data voltage of pixel data to the data lines;
• and
• a gate driver configured to sequentially supply gate signals to gate lines,
• wherein each of the pixel circuits includes:
• a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node;
• a first capacitor connected between the second node and a fourth node;
• a second capacitor connected between the third node and the fourth node;
• a light emitting element configured to be driven by a current flowing through the driving element;
• a first switch element configured to be turned on in response to a gate-on voltage of a first gate signal to supply an initialization voltage to the fourth node;
• a second switch element configured to be turned on in response to a gate-on voltage of a second gate signal to supply the initialization voltage to the second node;
• a third switch element configured to be turned on in response to a gate-on voltage of a third gate signal to supply a data voltage to the second node;
• and
• a fourth switch element configured to be turned on in response to a gate-on voltage of a fourth gate signal.