US 12,453,282 B2
Plurality of host materials and organic electroluminescent device comprising the same
Hyun-Ju Kang, Gyeonggi-do (KR); So-Young Jung, Gyeonggi-do (KR); Eun-Joung Choi, Gyeonggi-do (KR); Hong-Yeop Na, Gyeonggi-do (KR); Sang-Hee Cho, Gyeonggi-do (KR); Su-Hyun Lee, Gyeonggi-do (KR); and Jin-Ri Hong, Gyeonggi-do (KR)
Assigned to DuPont Specialty Materials Korea Ltd., (KR)
Filed by ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD., Chungcheongnam-do (KR)
Filed on Jul. 13, 2021, as Appl. No. 17/374,908.
Claims priority of application No. 10-2020-0086701 (KR), filed on Jul. 14, 2020.
Prior Publication US 2022/0020931 A1, Jan. 20, 2022
Int. Cl. H10K 85/60 (2023.01); C07D 413/12 (2006.01); C07D 413/14 (2006.01); C07D 487/04 (2006.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01)
CPC H10K 85/636 (2023.02) [C07D 413/12 (2013.01); C07D 413/14 (2013.01); C07D 487/04 (2013.01); H10K 85/6572 (2023.02); H10K 50/11 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 2101/90 (2023.02)] 8 Claims
 
1. A plurality of host materials comprising a first host material and a second host material, wherein the first host material comprises a compound represented by the following formula 1-1 or 1-2 and the second host material comprises a compound represented by the following formula 2:

OG Complex Work Unit Chemistry
wherein,
L1 represents a single bond,
L2 and L3 each independently represent a single bond or a substituted or unsubstituted phenylene;
Ar1 represents pyridyl substituted with deuterium or (C6-C30)aryl;
Ar2 and Ar3 each independently represent (C6-C30)aryl unsubstituted or substituted with deuterium or (C6-C30)aryl;
a and b each independently represent an integer of 1 or 2; and
when a and b are an integer of 2, each of Ar2 and each of Ar3 may be the same or different;

OG Complex Work Unit Chemistry
wherein,
X21 and Y21 each independently represent —N═, —NR25—, —O—, or —S—, provided that one of X21 and Y21 is —N═, and the other of X21 and Y21 is —NR25—, —O—, or —S—;
R21 represents a substituted or unsubstituted (C6-C30)aryl or a substituted or unsubstituted (3- to 30-membered) heteroaryl;
R22 to R25 each independently represent hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted fused ring of (C3-C30) aliphatic ring and (C6-C30) aromatic ring, a substituted or unsubstituted mono- or di- (C1-C30)alkylamino, a substituted or unsubstituted mono- or di- (C2-C30)alkenylamino, a substituted or unsubstituted (C1-C30)alkyl(C2-C30)alkenylamino, a substituted or unsubstituted mono- or di- (C6-C30)arylamino, a substituted or unsubstituted (C1-C30)alkyl (C6-C30)arylamino, a substituted or unsubstituted mono- or di- (3- to 30-membered)heteroarylamino, a substituted or unsubstituted (C1-C30)alkyl(3- to 30-membered)heteroarylamino, a substituted or unsubstituted (C2-C30)alkenyl(C6-C30)arylamino, a substituted or unsubstituted (C2-C30)alkenyl(3- to 30-membered)heteroarylamino, or a substituted or unsubstituted (C6-C30)aryl (3- to 30-membered)heteroarylamino; or may be linked to the adjacent substituents to form a ring(s);
provided that at least one of R22 to R24 is —L21-Ar21;
L21 represents a single bond or a substituted or unsubstituted (C6-C30)arylene;
Ar21 represents a substituted or unsubstituted fused ring of (C3-C30) aliphatic ring and (C6-C30) aromatic ring, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, or —NR31R32;
R31 and R32 each independently represent a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C2-C30)alkenyl, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
e and f each independently represent an integer of 1 or 2, and g represents an integer of 1 to 4; and
when e to g are an integer of 2 or more, each of R22, each of R23, and each of R24 may be the same or different.