Display device and driving method thereof, and electronic device including thereof

A driving method of a display device, the method comprising:

• supplying a first voltage from an initialization power supply to a pixel through an initialization power line during a first period of one frame period;
• and
• supplying a second voltage, which is larger than the first voltage, from the initialization power supply to the pixel during a second period of the one frame period after the first period, and during which a load connected to the initialization power line is reduced,
• wherein the second voltage has a value that is a sum of the first voltage and an offset voltage that has a value of the voltage of the initialization power supply that decreases as the load connected to the initialization power line decreases.

An electronic device, comprising:

• a processor to provide input image data;
• and
• a display device to display an image based on the input image data,
• wherein the display device comprises:
• a pixel comprising an initialization transistor configured to receive a voltage from an initialization power line;
• and
• an initialization power supply configured to supply a first voltage as the voltage, and configured to supply a second voltage as the voltage, which is larger than the first voltage, to the initialization power line during an offset period when a load connected to the initialization power line is reduced during one frame period,
• wherein the second voltage has a value that is a sum of the first voltage and an offset voltage that has a value of the voltage of the initialization power supply that decreases as the load connected to the initialization power line decreases.