Display device, display panel, and display driving method

A method of driving a display panel in which a light emitting element, a driving transistor configured to provide a driving current to the light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed, the method comprising:

• switching a first mode of a high driving frequency to a second mode of a low driving frequency;
• applying a bias voltage to a source electrode of the driving transistor;
• applying the driving voltage to the driving transistor in response to a first emission signal during a first emission control period;
• applying a reset voltage to an anode electrode of the light emitting element during the first emission control period;
• and
• supplying the driving current to the light emitting element in response to a second emission signal during a second emission control period, the second emission control period being later than the first emission control period.

A display panel capable of operating in a low speed mode at a low driving frequency and a high speed mode at a high driving frequency, the display panel comprising:

• a light emitting element;
• a driving transistor configured to provide a driving current to the light emitting element using a driving voltage;
• a first switching transistor having a gate electrode to which a first scan signal is applied, a drain electrode connected to a gate electrode of the driving transistor and a storage capacitor, and a source electrode connected to a source electrode of the driving transistor;
• a second switching transistor having a gate electrode to which a second scan signal is applied, a drain electrode to which a data voltage is applied, and a source electrode connected to a drain electrode of the driving transistor;
• a third switching transistor having a gate electrode to which a first emission signal is applied, a drain electrode to which a driving voltage is applied, and a source electrode connected to the drain electrode of the driving transistor;
• a fourth switching transistor having a gate electrode to which a second emission signal is applied, a drain electrode connected to the source electrode of the driving transistor, and a source electrode connected to an anode electrode of the light emitting element;
• a fifth switching transistor having a gate electrode to which a third scan signal is applied, a drain electrode to which the bias voltage is supplied, and a source electrode connected to the source electrode of the driving transistor;
• and
• a sixth switching transistor having a gate electrode to which a fourth scan signal is applied, a drain electrode to which a reset voltage is supplied, and a source electrode connected to the anode electrode of the light emitting element,
• wherein, in the low speed mode operating at the low driving frequency, the driving current is applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and the driving current is applied to the light emitting element through the driving transistor during a second emission control period.