Display device and driving method thereof

A display device comprising:

• a display panel including a plurality of sub-pixels;
• a data driver configured to output one or more of a data voltage or an update voltage to the display panel;
• a gate driver configured to output one or more of a scan signal or an initialization signal to a sub-pixel of the display panel;
• and
• a timing controller configured to output a timing control signal to the data driver and the gate driver,
• wherein the data voltage includes a voltage level corresponding to a gray value, and
• the update voltage includes a voltage level configured to swing between a turn-on level and a turn-off level, and
• wherein the sub-pixel includes:
• a switching transistor for outputting the data voltage to a first node;
• a driving transistor controlled by a voltage at the first node to output a driving current to a second node;
• a storage capacitor disposed between the first node and the second node;
• a first transistor controlled by a voltage at an update node and disposed between the switching transistor and the first node;
• a second transistor controlled by an update scan signal and disposed between the update voltage and the update node;
• and
• an update capacitor disposed between the update node and a low potential voltage.