Organic light emitting diode

An organic light emitting device, comprising:

• a first electrode;
• a second electrode provided to face the first electrode;
• and
• an organic material layer having one or more layers provided between the first electrode and the second electrode,
• wherein a compound of the following Formula 1 is included as a host in the organic material layer having one or more layers, and
• a compound of the following Formula 2 is included as a dopant in the organic material layer having one or more layers:
• wherein in Formula 1:
• L is a phenylene group which is unsubstituted or substituted deuterium;
• Ar1 is a dibenzofuran group that is unsubstituted or substituted with deuterium, or dibenzothiophene group that is unsubstituted or substituted with deuterium;
• R1 is hydrogen or deuterium;
• R2 and R3 the same as or different from each other, and are each independently hydrogen or deuterium;
• a is 1;
• b is an integer from 1 to 8;
• c is an integer from 1 to 4;
• d is an integer from 1 to 5;
• when a is 2 or more, two or more Ar1s are the same as or different from each other,
• when b is 2 or more, two or more R1s are the same as or different from each other,
• when c is 2 or more, two or more R2s are the same as or different from each other, and
• when d is 2 or more, two or more R3s are the same as or different from each other;
• wherein in Formula 2:
• A, B, and C are each a benzene ring that is unsubstituted or substituted with an alkyl group or an amine group, where the amine group is unsubstituted or substituted with a phenyl group;
• Y1 is boron;
• X1 and X2 are each NR;
• R is a phenyl group that is unsubstituted or substituted with an alkyl group.