US 12,219,789 B2
Organic light-emitting device and apparatus including the same
Seulong Kim, Yongin-si (KR); Tsuyoshi Naijo, Yongin-si (KR); Yunjee Park, Yongin-si (KR); Sungsoo Bae, Yongin-si (KR); Dongchan Lee, Yongin-si (KR); and Hyewon Choi, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 13, 2020, as Appl. No. 16/992,837.
Claims priority of application No. 10-2019-0100531 (KR), filed on Aug. 16, 2019.
Prior Publication US 2021/0050542 A1, Feb. 18, 2021
Int. Cl. H10K 50/16 (2023.01); H10K 85/60 (2023.01)
CPC H10K 50/166 (2023.02) [H10K 50/16 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02)] 20 Claims
OG exemplary drawing
 
1. An organic light-emitting device comprising:
a first electrode;
a second electrode facing the first electrode; and
an organic layer between the first electrode and the second electrode,
wherein the organic layer comprises an emission layer, a first auxiliary layer, a second auxiliary layer, and an electron transport layer,
the first auxiliary layer and the second auxiliary layer are between the emission layer and the electron transport layer,
the first auxiliary layer comprises a first compound comprising a carbocyclic group that has three or more rings, and
the second auxiliary layer comprises a bipolar compound and an electron transport compound,
wherein the first auxiliary layer and the second auxiliary each independently have a thickness of about 5 angstrom (Å) to about 200 Å.