US 11,864,462 B2
Organic light emitting diode and organic light emitting device including the same
Tae-Ryang Hong, Paju-si (KR); Hyong-Jong Choi, Paju-si (KR); Bo-Min Seo, Paju-si (KR); and Jun-Yun Kim, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Oct. 1, 2020, as Appl. No. 17/060,494.
Claims priority of application No. 10-2019-0130134 (KR), filed on Oct. 18, 2019; and application No. 10-2020-0114591 (KR), filed on Sep. 8, 2020.
Prior Publication US 2021/0119146 A1, Apr. 22, 2021
Int. Cl. C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01)
CPC H10K 85/6572 (2023.02) [C09K 11/06 (2013.01); H10K 85/624 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02)] 23 Claims
 
1. An organic light emitting diode, comprising:
a first electrode;
a second electrode facing the first electrode; and
an emitting material layer including a first compound and a second compound and positioned between the first and second electrodes,
wherein the first compound is represented by Formula 1:

OG Complex Work Unit Chemistry
wherein each of a1 to a3 is independently an integer of 0 to 4, and n is an integer of 1 to 5,
wherein each of R1 to R3 is independently selected from the group consisting of deuterium, tritium, a C1 to C20 alkyl, a C6 to C30 aryl and a C3 to C40 heteroaryl, or adjacent two of R1, adjacent two of R2 and/or adjacent two of R3 are combined to form a fused ring,
wherein the second compound is represented by Formula 2:

OG Complex Work Unit Chemistry
wherein each of b1 and b3 is independently an integer of 0 to 5, and b2 is an integer of 0 to 3,
wherein b4 is an integer of 0 to 4,
wherein at least one of b1 to b4 is a positive integer, and
wherein each of R11 to R14 is selected from the group consisting of deuterium, tritium, a C1 to C20 alkyl, a C6 to C30 aryl and a C3 to C40 heteroaryl.