Pixel circuit and display apparatus having the same

A display apparatus comprising:

• a display panel comprising a first pixel and which displays an image;
• and
• a data driver which outputs a data voltage to the display panel and receives a sensing voltage from the display panel;
• wherein the first pixel comprises:
• a first switching element including a control electrode connected to a first node, an input electrode which receives a first power voltage and an output electrode connected to a second node;
• a second switching element including a control electrode which receives a first signal, an input electrode which receives a first data voltage and an output electrode connected to the first node;
• a first light emitting element including a first electrode connected to the second node and a second electrode which receives a second power voltage;
• a third switching element including a control electrode which receives a second signal, an input electrode connected to the second node and an output electrode connected to a third node;
• and
• a fourth switching element including a control electrode which receives a third signal, an input electrode connected to the third node and an output electrode connected to a sensing line,
• wherein the data driver comprises:
• a first switch including a first end connected to the sensing line and a second end which receives an initialization voltage, the first switch controlled by a first sensing signal;
• and
• a second switch connected to the first switch and controlled by a second sensing signal.