	US 12,108,659 B2
	Organic electroluminescent device
Inbum Song, Seoul (KR); Seunghee Yoon, Seoul (KR); Sang-Hoon Hong, Seoul (KR); Hyun Bin Kang, Suwon-si (KR); and Jaemin Ryu, Bucheon-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR); and Material Science Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR); and Material Science Co., Ltd., Seoul (KR)
Filed on Jul. 18, 2019, as Appl. No. 16/515,738.
Claims priority of application No. 10-2018-0084228 (KR), filed on Jul. 19, 2018; and application No. 10-2019-0085997 (KR), filed on Jul. 16, 2019.
Prior Publication US 2020/0028084 A1, Jan. 23, 2020
Int. Cl. H01L 51/00 (2006.01); C07C 211/61 (2006.01); C07D 307/91 (2006.01); C07F 5/02 (2006.01); C09K 11/06 (2006.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/19 (2023.01); H10K 101/10 (2023.01)

CPC H10K 85/633 (2023.02) [C07C 211/61 (2013.01); C07D 307/91 (2013.01); C07F 5/027 (2013.01); C09K 11/06 (2013.01); H10K 85/322 (2023.02); H10K 85/636 (2023.02); C07C 2603/50 (2017.05); C07C 2603/52 (2017.05); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/19 (2023.02); H10K 85/622 (2023.02); H10K 85/623 (2023.02); H10K 85/626 (2023.02); H10K 85/6574 (2023.02); H10K 2101/10 (2023.02)]

7 Claims

1. An organic electroluminescent device comprising an anode, a cathode, and at least one organic layer between the anode and the cathode,

wherein the organic layer comprises a light emission layer,

wherein the light emission layer comprises a first dopant and a second dopant,

wherein the first dopant comprises the compound selected from the group consisting of:

and

wherein the second dopant comprises the compound selected from the group consisting of:

wherein the weight ratio of the first dopant to the second dopant is from 1:1 to 7:3.