US 12,137,611 B2
Compound, and organic light emitting device and organic light emitting display device including the same
Kyung-Jin Yoon, Paju-si (KR); Yu-Jin Bae, Paju-si (KR); Bo-Min Seo, Paju-si (KR); Jeong-Eun Baek, Paju-si (KR); Joong-Hwan Yang, Paju-si (KR); Chun-Ki Kim, Paju-si (KR); Jung-Hyun Yoon, Paju-si (KR); Hyung-Won Cho, Paju-si (KR); Kyu-Soon Shin, Paju-si (KR); Jeong-A Seo, Paju-si (KR); Hyung-Jin Lee, Paju-si (KR); Young-Sam Jin, Paju-si (KR); and Dong-Hyun Lee, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR); and DONGJIN SEMICHEM CO., LTD., Incheon (KR)
Filed on Dec. 3, 2019, as Appl. No. 16/702,269.
Claims priority of application No. 10-2018-0157114 (KR), filed on Dec. 7, 2018.
Prior Publication US 2020/0185622 A1, Jun. 11, 2020
Int. Cl. H01L 51/50 (2006.01); C07D 491/20 (2006.01); C07D 519/00 (2006.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/13 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/844 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01)
CPC H10K 85/6572 (2023.02) [C07D 491/20 (2013.01); C07D 519/00 (2013.01); C09K 11/06 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 50/13 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/844 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02)] 8 Claims
OG exemplary drawing
 
1. An organic light emitting device, comprising:
a first electrode;
a second electrode facing the first electrode; and
a first emitting material layer between the first electrode and the second electrode, the first emitting material layer including a compound,
wherein the compound is represented by Formula 1:

OG Complex Work Unit Chemistry
wherein Y is CR1R2, or O, and each of R1 and R2 is independently selected from the group consisting of hydrogen, substituted or non-substituted C6-C24 aryl group and substituted or non-substituted C5-C24 heteroaryl group,
wherein each of X1 to X8 is independently selected from C or N, and wherein X1 and X8 are each N,
wherein n1, n2, m1 and m2 is one of 0, 1 and 2, and at least one of n1 and n2 is 1 or more,
wherein when each of m1 and m2 is 0, Q is independently selected from the group consisting of substituted or non-substituted C6-C60 aryl group, substituted or non-substituted C5-C60 heteroaryl group, CN and NR3R4, and each of R3 and R4 is independently selected from the group consisting of hydrogen, substituted or non-substituted C6-C60 aryl group and substituted or non-substituted C5-C60 heteroaryl group,
wherein when each of m1 and m2 is 1 or 2, Q is independently selected from the group consisting of substituted or non-substituted C6-C60 aryl group and substituted or non-substituted C5-C60 heteroaryl group,
wherein Ar is independently selected from the group consisting of substituted or non-substituted C1-C20 alkyl group, substituted or non-substituted C6-C24 aryl group, substituted or non-substituted C5-C24 heteroaryl group, CN and NR5R6, and each of R5 and R6 is independently selected from the group consisting of hydrogen, substituted or non-substituted C6-C24 aryl group and substituted or non-substituted C5-C24 heteroaryl group,
wherein each of n1 and n2 is 1 or 2, a plurality of Qs are same,
wherein the first emitting material layer further includes a first dopant, and the compound is used as a first host, and
wherein a difference between an energy level of a highest occupied molecular orbital (HOMO) of the first host and an energy level of a HOMO of the first dopant or a difference between an energy level of a lowest unoccupied molecular orbital (LUMO) of the first host and an energy level of a LUMO of the first dopant is less than about 0.5 eV.