| CPC H10K 85/6574 (2023.02) [H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/631 (2023.02); H10K 85/656 (2023.02); H10K 85/6572 (2023.02); H10K 85/658 (2023.02); H10K 50/11 (2023.02); H10K 2101/90 (2023.02)] | 19 Claims |
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1. An organic light emitting device comprising:
a first electrode;
a second electrode; and
a light emitting layer provided between the first electrode and the second electrode,
wherein the light emitting layer includes a compound of Chemical Formula 1, a compound of Chemical Formula 2, and a compound of Chemical Formulae 3-5 or 3-6:
 wherein in Chemical Formulae 1 and 2:
L1 to L4 are the same as or different from each other, and each independently a direct bond or a substituted or unsubstituted arylene group;
Ar1 and Ar2 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group;
Ar3 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group;
R1 to R3 are the same as or different from each other, and each independently hydrogen, deuterium, a halogen group, a cyano group, a silyl group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an aryloxy group, an amino group, an aryl group, or a heteroaryl group; and
a1 and a2 are each independently an integer of 0 to 8, a3 is an integer of 0 to 7, and when a1 is 2 or greater, the R1s are the same as or different from each other, when a2 is 2 or greater, the R2s are the same as or different from each other, and when a3 is 2 or greater, the R3s are the same as or different from each other:
 wherein in Chemical Formulae 3-5 and 3-6:
X is B, P=O or P=S;
A1 to A3 are the same as or different from each other, and each independently a monocyclic or polycyclic ring;
A4 and A5 are the same as or different from each other, and each independently a monocyclic or polycyclic ring;
Y2 is O or NR12;
Y3 is CR21R22 or SiR27R28, Y4 is a direct bond, O, CR23R24 or NR14, and Y5 is a direct bond, O, CR25R26 or NR15;
R12, R14, and R15 are the same as or different from each other, and each independently hydrogen, deuterium, an alkyl group, a cycloalkyl group, or an aryl group that is unsubstituted or substituted with an alkyl group, an arylalkyl group or an aryl group;
R21 and R22 are the same as or different from each other, and each independently hydrogen, deuterium, an alkyl group, a cycloalkyl group or an aryl group, or bond to each other to form a ring;
R23 and R24 are the same as or different from each other, and each independently hydrogen, deuterium, an alkyl group, a cycloalkyl group or an aryl group, or bond to each other to form a ring;
R25 and R26 are the same as or different from each other, and each independently hydrogen, deuterium, an alkyl group, a cycloalkyl group or an aryl group, or bond to each other to form a ring;
R27 and R28 are the same as or different from each other, and each independently hydrogen, deuterium, an alkyl group, a cycloalkyl group or an aryl group;
T1 to T5 are the same as or different from each other, and each independently hydrogen, deuterium, a hydroxyl group, an alkyl group, a cycloalkyl group, an alkoxy group, an aryloxy group, an aryl group, a heteroaryl group, or —NR41R42, and R41 and R42 are the same as or different from each other and each independently hydrogen, an alkyl group, a heteroaryl group, or an aryl group that unsubstituted or substituted with an alkyl group or a silyl group; and
c1 to c5 are each independently an integer of 0 or greater, and when c1 is 2 or greater, the T1s are the same as or different from each other, when c2 is 2 or greater, the T2s are the same as or different from each other, when c3 is 2 or greater, the T3s are the same as or different from each other, when c4 is 2 or greater, the T4s are the same as or different from each other, and when c5 is 2 or greater, the T5s are the same as or different from each other.
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