Display device and mobile electronic device including the same

A mobile electronic device comprising a display panel, wherein the display panel comprises:

• a substrate;
• a driving element layer disposed on the substrate;
• a wiring layer disposed on the driving element layer and including a power supply wiring;
• and
• a light emitting element layer disposed on the wiring layer,
• wherein the light emitting element layer comprises:
• a pixel defining layer defining openings for pixels;
• a first electrode disposed in each opening of the openings;
• a heating wiring disposed on the pixel defining layer around each opening of the pixel defining layer;
• a connection electrode connecting the heating wiring and the power supply wiring through a contact hole extending through at least a portion of the wiring layer and the pixel defining layer;
• an intermediate layer covering the first electrode in each of the pixels and the pixel defining layer between the pixels, and including a disconnected portion on the pixel defining layer adjacent to the heating wiring;
• and
• a second electrode continuously disposed on the intermediate layer in each of the openings for the pixels and between the pixels.