	US 11,910,707 B2
	Organic light-emitting device
Myeong-Suk Kim, Yongin-si (KR); Sung-Wook Kim, Yongin-si (KR); Hwan-Hee Cho, Yongin-si (KR); Jin-Soo Hwang, Yongin-si (KR); and Chang-Woong Chu, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Dec. 23, 2016, as Appl. No. 15/390,210.
Claims priority of application No. 10-2015-0185104 (KR), filed on Dec. 23, 2015; and application No. 10-2016-0177749 (KR), filed on Dec. 23, 2016.
Prior Publication US 2017/0186969 A1, Jun. 29, 2017
Int. Cl. H01L 51/54 (2006.01); H10K 85/60 (2023.01); C09K 11/02 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01); H10K 101/40 (2023.01)

CPC H10K 85/654 (2023.02) [C09K 11/025 (2013.01); H10K 85/615 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/40 (2023.02)]

4 Claims

1. An organic light-emitting device comprising:

a first electrode;

a second electrode; and

an organic layer between the first electrode and the second electrode, the organic layer comprising an emission layer and a hole transport region between the emission layer and the first electrode,

wherein the emission layer consists of one host and one or more dopants, the one host consisting of a first compound selected from Compounds A-101 to A-221 and B-101 to B-230,

the hole transport region comprises an emission auxiliary layer on the emission layer, a hole transport layer directly on the emission auxiliary layer, and a hole injection layer on the hole transport layer,

the emission auxiliary layer comprises a second compound selected from Compounds E-104 to E-113, E-115, E-118, E-120, E-122 to E-128, E-130, E-135, E-137 to E-157, E-159 to E-168, and E-259 to E-270: