Display Device, Driving Circuit and Display Driving Method

A driving circuit comprising:

• a gamma voltage generating circuit configured to generate a reference gamma voltage using a feedback high potential driving voltage as a reference voltage of the gamma voltage generating circuit;
• a bias voltage generating circuit configured to generate a bias voltage using the feedback high potential driving voltage as a reference voltage of the bias voltage generating circuit;
• a plurality of resistor strings configured to generate a data voltage by dividing the reference gamma voltage;
• and
• a multiplexer configured to transmit the data voltage or the bias voltage to a display panel in response to a selection signal.

A display driving method for driving a display panel including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element using a high potential driving voltage, and a plurality of switching transistors configured to control an operation of the driving transistor, comprising:

• receiving a feedback high potential driving voltage through a high potential driving voltage feedback line;
• generating a reference gamma voltage using the feedback high potential driving voltage;
• generating a bias voltage by using the feedback high potential driving voltage;
• supplying a data voltage using the reference gamma voltage in a first mode driven at a first driving frequency;
• supplying a data voltage using the reference gamma voltage in a first period of a second mode driven at a second driving frequency;
• and
• supplying the bias voltage in a second period of the second mode.