Organic Light-emitting Element

An organic light emitting device comprising:

• a first electrode;
• a second electrode disposed to face the first electrode;
• and
• a light emitting layer disposed between the first electrode and the second electrode,
• wherein the organic light emitting device comprises an organic material layer including a compound represented by the following Chemical Formula 1 between the first electrode and the light emitting layer, and
• an organic material layer including a compound represented by the following Chemical Formula 2 between the second electrode and the light emitting layer:
• in Chemical Formulae 1 and 2,
• Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms;
• or a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms,
• L1 to L5 are the same as or different from each other, and are each independently a direct bond;
• or a substituted or unsubstituted arylene group having 6 to 30 carbon atoms,
• R1 to R5 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms;
• a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms;
• or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or R1 and R2 or R3 and R4 are optionally bonded to each other to form a ring,
• R11 to R16 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms;
• a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms;
• a substituted or unsubstituted aryl group having 6 to 30 carbon atoms;
• or a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms, and
• a, d, and e are each an integer from 0 to 4, b and c are each an integer from 0 to 3, f is an integer from 0 to 8, and when a to f are 2 or more, the substituents in the parenthesis are the same as or different from each other.