US 11,957,046 B2
Electroluminescent device, and display device comprising thereof
Moon Gyu Han, Suwon-si (KR); Dae Young Chung, Suwon-si (KR); Kwanghee Kim, Seoul (KR); Eun Joo Jang, Suwon-si (KR); Chan Su Kim, Seoul (KR); Kun Su Park, Seongnam-si (KR); and Won Sik Yoon, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Sep. 6, 2019, as Appl. No. 16/562,601.
Claims priority of application No. 10-2018-0107005 (KR), filed on Sep. 7, 2018.
Prior Publication US 2020/0083450 A1, Mar. 12, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 85/60 (2023.01); H10K 50/115 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 71/12 (2023.01); H10K 102/00 (2023.01)
CPC H10K 85/633 (2023.02) [H10K 85/6572 (2023.02); H10K 50/115 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 71/00 (2023.02); H10K 71/12 (2023.02); H10K 2102/331 (2023.02); H10K 2102/351 (2023.02)] 26 Claims
OG exemplary drawing
 
1. An electroluminescent device, comprising
a first electrode and a second electrode facing each other;
an emission layer disposed between the first electrode and the second electrode and comprising
a plurality of quantum dots, and
a first hole transporting material comprising an unsubstituted C4 to C20 alkyl group attached to a backbone structure, wherein the first hole transporting material is a non-polymeric compound;
a hole transport layer disposed between the emission layer and the first electrode and comprising a second hole transporting material;
an electron transport layer disposed between the emission layer and the second electrode; and
wherein the first hole transporting material is a fluorenyl amine compound and the unsubstituted C4 to C20 alkyl group is attached to a fluorenyl group of the fluorenyl amine compound.