Display apparatus

A display apparatus, comprising:

• a display panel on which a plurality of sub-pixels are arranged, each of the plurality of sub-pixels including an organic light-emitting diode and a driving transistor for driving the organic light-emitting diode;
• a plurality of data lines disposed on the display panel and connected to the plurality of sub-pixels;
• a plurality of gate lines disposed on the display panel and connected to the plurality of sub-pixels;
• a plurality of sensing lines disposed on the display panel and connected to the plurality of sub-pixels;
• a data driving circuit configured to supply data voltages to the plurality of data lines;
• a gate driving circuit configured to supply gate voltages to the plurality of gate lines;
• a sensing circuit connected to the plurality of sensing lines to sense sensing voltages of the plurality of sub-pixels;
• and
• a controller configured to determine whether at least one of the driving transistor and the organic light-emitting diode of a sub-pixel is defective based on a sensing voltage sensed by the sensing circuit,
• wherein:
• the sensing voltage is one of the sensing voltages sensed by the sensing circuit on a sensing line among the plurality of sensing lines;
• and
• the sensing line is connected to the sub-pixel among the plurality of sub-pixels.