US 11,737,353 B2
Plurality of host materials and organic electroluminescent device comprising the same
Sang-Hee Cho, Gyeonggi-do (KR); Doo-Hyeon Moon, Gyeonggi-do (KR); and Bitnari Kim, Gyeonggi-do (KR)
Assigned to Rohm and Haas Electronic Materials Korea Ltd.
Filed by Rohm and Haas Electronic Materials Korea LTD., Chungcheongnam-do (KR)
Filed on Feb. 14, 2022, as Appl. No. 17/670,572.
Application 17/670,572 is a continuation of application No. 16/481,644, abandoned, previously published as PCT/KR2018/002230, filed on Feb. 23, 2018.
Claims priority of application No. 10-2017-0025749 (KR), filed on Feb. 27, 2017; and application No. 10-2018-0020359 (KR), filed on Feb. 21, 2018.
Prior Publication US 2022/0165956 A1, May 26, 2022
Int. Cl. H10K 85/60 (2023.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 101/10 (2023.01); H10K 101/00 (2023.01)
CPC H10K 85/631 (2023.02) [C09K 11/06 (2013.01); H10K 85/624 (2023.02); H10K 85/654 (2023.02); H10K 85/656 (2023.02); H10K 50/11 (2023.02); H10K 50/12 (2023.02); H10K 2101/10 (2023.02); H10K 2101/90 (2023.02)] 7 Claims
 
1. A plurality of host materials comprising at least one of a first host compound and at least one of a second host compound, wherein the first host compound is represented by the following formula 2, and the second host compound is represented by the following formula 3:

OG Complex Work Unit Chemistry
wherein,
X1 represents —N═, —NR7—, —O— or —S—,
Y1 represents —N═, —NR8—, —O— or —S—, provided that when X1 represents —N═, Y1 represents —NR8—, —O— or —S—, and when X1 represents —NR7—, Y1 represents —N═, —O— or —S—,
R1 represents a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (3- to 30-membered)heteroaryl,
R2, R3 and R5 to R8 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 mono- or di- (C1-C30)alkylamino, a substituted or unsubstituted mono- or di- (C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino, or may be linked to an adjacent substituent to form a substituted or unsubstituted, (C3-C30) mono- or polycyclic, alicyclic, or aromatic ring, whose carbon atom may be replaced with at least one heteroatom selected from nitrogen, oxygen, and sulfur,
L1 represents a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted (3- to 30-membered)heteroarylene,
a represents 1, b represents 1 or 2, and e represents an integer of 1 to 4,
the heteroaryl(ene) contains at least one heteroatom selected from B, N, O, S, Si, and P;

OG Complex Work Unit Chemistry
wherein,
X11 represents —N═, —NR17—, —O— or —S—,
Y11 represents —N═, —NR18—, —O— or —S—, provided that when X11 represents —N═, Y11 represents —NR18—, —O— or —S—, and when X11 represents —NR17—, Y11 represents —N═, —O— or —S—,
X represents N,
R11 represents a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (3- to 30-membered)heteroaryl,
R12 to R18 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 mono- or di- (C1-C30)alkylamino, a substituted or unsubstituted mono- or di- (C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino, or may be linked to an adjacent substituent to form a substituted or unsubstituted, (C3-C30) mono- or polycyclic, alicyclic, or aromatic ring, whose carbon atom may be replaced with at least one heteroatom selected from nitrogen, oxygen, and sulfur,
L2 represents a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted (3- to 30-membered)heteroarylene,
a′ represents 1, b′ and c′ each independently represent 1 or 2, d′ represents an integer of 1 to 4,
the heteroaryl(ene) contains at least one heteroatom selected from B, N, O, S, Si, and P.