Organic light-emitting device

An organic light emitting device, comprising:

• a first electrode;
• a second electrode provided so as to be opposite to the first electrode;
• one or more organic material layers provided between the first electrode and the second electrode;
• an auxiliary electrode of the first electrode;
• and
• a short-circuit preventing layer provided between the first electrode and the auxiliary electrode,
• wherein the first electrode and the auxiliary electrode are provided so as to be spaced apart from each other,
• the short-circuit preventing layer is in contact with at least a part of the first electrode and at least a part of the auxiliary electrode, and
• any one of a difference in an energy level of the short-circuit preventing layer and the first electrode at an interface of the short-circuit preventing layer and the first electrode and a difference in an energy level of the short-circuit preventing layer and the auxiliary electrode at an interface of the short-circuit preventing layer and the auxiliary electrode is 0.5 eV or more, and the other is 0.5 eV or less.