US 12,410,120 B2
Organic light emitting device
Yoshimasa Fujita, Yokohama (JP); Shuri Sato, Yokohama (JP); and Hiroaki Itoi, Yokohama (JP)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Sep. 25, 2023, as Appl. No. 18/474,078.
Application 18/474,078 is a continuation of application No. 17/495,551, filed on Oct. 6, 2021, granted, now 11,925,111.
Application 17/495,551 is a continuation of application No. 16/946,396, filed on Jun. 19, 2020, granted, now 11,145,819.
Application 16/946,396 is a continuation of application No. 15/447,704, filed on Mar. 2, 2017, granted, now 10,734,586, issued on Aug. 4, 2020.
Claims priority of application No. 10-2016-0038593 (KR), filed on Mar. 30, 2016.
Prior Publication US 2024/0074307 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/50 (2006.01); C07C 211/54 (2006.01); C07C 211/58 (2006.01); C07D 209/80 (2006.01); C07D 209/86 (2006.01); C07D 307/91 (2006.01); C07D 405/14 (2006.01); C07F 7/08 (2006.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 50/12 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01)
CPC C07C 211/54 (2013.01) [C07C 211/58 (2013.01); C07D 209/80 (2013.01); C07D 209/86 (2013.01); C07D 307/91 (2013.01); C07D 405/14 (2013.01); C07F 7/081 (2013.01); C07F 7/0812 (2013.01); C07F 7/0816 (2013.01); H10K 85/40 (2023.02); H10K 85/622 (2023.02); H10K 85/631 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 50/12 (2023.02); H10K 50/15 (2023.02); H10K 50/156 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 50/18 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02)] 20 Claims
OG exemplary drawing
 
1. An organic light emitting device, comprising:
a first electrode;
a hole transport region on the first electrode;
an emission layer on the hole transport region;
an electron transport region on the emission layer; and
a second electrode on the electron transport region,
wherein the first electrode and the second electrode each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, and Zn, a compound of two or more thereof, a mixture of two or more thereof, and an oxide thereof,
wherein the emission layer comprises a thermally activated delayed fluorescence material, and
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:

OG Complex Work Unit Chemistry
wherein, in Formulae 1, 2, 3 and 4,
Ar1, Ar2, Ar3, Ar4, Ar5, Ar6, Ar7, 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,
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, 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.