Display device and electronic device

A display device comprising:

• a display panel including a plurality of data lines and a plurality of sensing lines, including a plurality of pixels in a display region, and further including a plurality of dummy pixels in a peripheral region adjacent to the display region;
• a data driver connected to the plurality of pixels and the plurality of dummy pixels through the plurality of data lines;
• a sensing circuit connected to the plurality of pixels and the plurality of dummy pixels through the plurality of sensing lines;
• and
• a scan driver configured to apply a scan signal and a first sensing signal to the plurality of pixels and the plurality of dummy pixels, and to further apply a second sensing signal to the plurality of dummy pixels,
• wherein each of the plurality of pixels and the plurality of dummy pixels comprises:
• a driving transistor including a gate connected to a gate node, a first terminal which receives a first power supply voltage, and a second terminal connected to a source node;
• a light-emitting element including an anode connected to the source node, and a cathode which receives a second power supply voltage, and
• wherein each of the plurality of dummy pixels further comprises:
• an initialization transistor configured to connect a corresponding one of the sensing lines to the source node in response to the second sensing signal.

An electronic device comprising:

• a processor;
• a memory connected to the processor;
• a power module connected to the processor;
• and
• a display device configured to receive input image data from the processor, and to display an image based on the input image data, the display device comprising:
• a display panel including a plurality of data lines and a plurality of sensing lines, including a plurality of pixels in a display region, and further including a plurality of dummy pixels in a peripheral region adjacent to the display region;
• a data driver connected to the plurality of pixels and the plurality of dummy pixels through the plurality of data lines;
• a sensing circuit connected to the plurality of pixels and the plurality of dummy pixels through the plurality of sensing lines;
• and
• a scan driver configured to sequentially apply a scan signal and a first sensing signal to the plurality of pixels and the plurality of dummy pixels on a row-by-row basis in an active period of a frame period, to apply the scan signal and the first sensing signal to the plurality of pixels in a selected pixel row in a first period within a blank period of the frame period, and to apply a second sensing signal to the plurality of dummy pixels in a second period after the first period within the blank period,
• wherein data voltages applied to the plurality of dummy pixels in the active period of the frame period are data voltages applied to the plurality of pixels in a pixel row subsequent to the selected pixel row in an active period of a previous frame period.