Display device and display driving method

A display device, comprising:

• a display panel including a light emitting element, a driving transistor having a first node being a gate electrode, a second node being a drain electrode, and a third node being a source electrode, and configured to provide a driving current to the light emitting element, a plurality of switching transistors configured to control an operation of the driving transistor, and a storage capacitor having first electrode and second electrode;
• a gate driving circuit configured to supply a plurality of scan signals to the display panel;
• wherein the plurality of switching transistors include;
• a first switching transistor turned on by a first scan signal, the first switching transistor configured to diode-connect the first node and the third node;
• a second switching transistor turned on by a second scan signal, the second switching transistor configured to supply a data voltage or a bias voltage to the second node;
• a third switching transistor turned on by a light emitting signal, the third switching transistor configured to supply a high potential driving voltage from a fourth node connected to the first electrode of the storage capacitor to the second node;
• a fourth switching transistor turned on by the light emitting signal, the fourth switching transistor configured to form a current path between the driving transistor and the light emitting element;
• and
• a fifth switching transistor turned on by a third scan signal, the fifth switching transistor configured to supply a first voltage to the first node,
• wherein the first electrode of the storage capacitor is connected to the fourth node,
• wherein the second electrode of the storage capacitor is connected to the first node,
• wherein the display panel including a plurality of subpixels, driven in a high-speed mode at a high driving frequency and in a low-speed mode at a low driving frequency that is less than the high driving frequency,
• wherein a data voltage is supplied to the display panel during a first period and the bias voltage is supplied to the driving transistor in a second period in the low-speed mode, and
• wherein the second period is a period after the first period and before a light emitting period of the light emitting element.