Display apparatus and method of driving the same

A display apparatus comprising:

• a display panel including pixels;
• a gate driver configured to output gate signals to the pixels;
• a data driver configured to output data voltages to the pixels;
• a sensing circuit configured to receive sensed signals from the pixels;
• a power voltage generator configured to apply a power voltage to at least one of the display panel, the gate driver, and the data driver;
• and
• a driving controller configured to stop an operation of at least one of the display panel, the gate driver, the data driver, and the power voltage generator when the display panel is determined to be defective,
• wherein the driving controller is configured to select one of a first-mode threshold set and a second-mode threshold set based on an initial sensed signal value set related to the sensed signals for determining whether the display panel is defective,
• wherein the first-mode threshold set includes a first-mode first threshold, a first-mode second threshold, and a first-mode third threshold, and
• wherein the second-mode threshold set includes a second-mode first threshold, a second-mode second threshold, and a second-mode third threshold respectively corresponding to and respectively unequal to the first-mode first threshold, the first-mode second threshold, and the first-mode third threshold.