Patent ID: 11925111
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. An organic light emitting device, comprising:
an anode;
a hole transport region on the anode;
an emission layer on the hole transport region;
an electron transport region on the emission layer; and
a cathode on the electron transport region,
wherein the hole transport region comprises:
a first hole transport material represented by the following Formula 1 or Formula 2; and
a second hole transport material represented by the following Formula 3 or Formula 4:, wherein, in Formulae 1, 2, 3 and 4,
Ar1, Ar2, Ar3, Ar4, Ar5, and Ar8 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring carbon atoms, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, a deuterium atom, or a hydrogen atom,
Ar6 and Ar7 are each independently a substituted aryl group having 6 to 30 ring carbon atoms, an unsubstituted aryl group having 10 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring carbon atoms, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, a deuterium atom, or a hydrogen atom, provided that, in Ar6 and Ar7, a substituent of the substituted aryl group having 6 to 30 ring carbon atoms, the substituted heteroaryl group having 5 to 30 ring carbon atoms, the substituted alkyl group having 1 to 20 carbon atoms, and the substituted silyl group does not include an amino group, and provided that neither Ar6 nor Ar7 are a substituted fluorenyl group,
X is a direct linkage or CR14R15,
R1 to R15 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring carbon atoms, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, a deuterium atom, or a hydrogen atom,
R1 to R15 are separate or combined with an adjacent group to form a ring,
R5 is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring carbon atoms, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, a deuterium atom, or a hydrogen atom, provided that, in R5, a substituent of the substituted aryl group having 6 to 30 ring carbon atoms, the substituted heteroaryl group having 5 to 30 ring carbon atoms, the substituted alkyl group having 1 to 20 carbon atoms, and the substituted silyl group does not include an amino group,
L1 and L2 are each independently a direct linkage, a substituted or unsubstituted alkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroarylene group having 5 to 30 ring carbon atoms,
a, b, and c are each independently an integer of 0 to 4,
d is an integer of 0 to 3, and
e is an integer of 0 to 5,
wherein the emission layer comprises a thermally activated delayed fluorescence material.