Display device and electronic device using the display device

An electronic device comprising:

• at least one display device comprising a substrate which comprises an emission area and a non-emission area;
• and
• at least any one of a display module, a processor, a memory, or a power module connected to the display device,
• wherein the at least one display device comprises:
• a plurality of anodes located on the emission area of the substrate;
• a light emitting layer located on the plurality of anodes and comprising a first light emitting layer and a second light emitting layer spaced apart from each other;
• and
• a cathode comprising:
• a first cathode located on the first light emitting layer;
• and
• a second cathode located on the second light emitting layer and spaced apart from the first cathode,
• wherein:
• the cathode comprises 90% to 100% silver (Ag),
• silver content of the first cathode and silver content of the second cathode are different from each other, and
• a thickness of an electron transport layer of the first light emitting layer and a thickness of an electron transport layer of the second light emitting layer are different from each other.