| CPC H10K 85/626 (2023.02) [C09K 11/06 (2013.01); H10K 85/615 (2023.02); H10K 85/631 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); H10K 50/11 (2023.02); H10K 2101/90 (2023.02)] | 7 Claims |
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1. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
an organic material layer comprising a light emitting layer provided between the first electrode and the second electrode,
wherein the light emitting layer comprises a compound represented by the following Formula 1, a compound represented by the following Formula 2, and a compound represented by the following Formula 3:
 wherein in Formula 1,
Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted phenyl group; a substituted or unsubstituted naphthyl group; or a substituted or unsubstituted biphenyl group,
L1 and L2 are the same as or different from each other, and are each independently a direct bond; a substituted or unsubstituted phenylene group; or a substituted or unsubstituted naphthylene group,
R1 and R2 are the same as or different from each other, and are each independently hydrogen or deuterium, and
n1 and n2 are each an integer from 0 to 4, and two or more substituents in the parenthesis are the same as or different from each other provided that n1 and n2 are each 2 or higher,
 wherein in Formula 2,
Ar3 and Ar4 are the same as or different from each other, and are each independently a phenyl group unsubstituted or substituted with deuterium or an aryl group having 6 to 60 carbon atoms; or a biphenyl group unsubstituted or substituted with deuterium or an aryl group having 6 to 60 carbon atoms,
Ar5 is an aryl group having 6 to 30 carbon atoms which is unsubstituted or substituted with deuterium, a phenyl group, a naphthyl group, a phenanthrenyl group, or a triphenylenyl group; a substituted or unsubstituted-dibenzofuranyl group; or a substituted or unsubstituted dibenzothiophenyl group,
L3 and L4 are the same as or different from each other, and are each independently a direct bond or a phenylene group,
L5 is a direct bond; a substituted or unsubstituted phenylene group; or a substituted or unsubstituted naphthylene group,
R3 and R4 are the same as or different from each other, and are each independently hydrogen or deuterium,
n3 is an integer from 0 to 4, and two or more R3's are the same as or different from each other provided that n3 is 2 or higher, and
n4 is an integer from 0 to 3, and two or more R4's are the same as or different from each other provided that n4 is 2 or higher,
 wherein in Formula 3,
X1 is B or P(═O),
Y1 is O, S, or NRa, and Y2 is O, S, or NRb,
Cy1 to Cy3 are the same as or different from each other, and are each independently a substituted or unsubstituted aromatic hydrocarbon ring; or a substituted or unsubstituted hetero ring, and Cy1 and Cy2 may be bonded to each other to form a substituted or unsubstituted ring,
Ra is a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or is bonded to Cy1 or Cy3 to form a substituted or unsubstituted ring, and
Rb is a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or is bonded to Cy2 or Cy3 to form a substituted or unsubstituted ring.
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