US 11,730,003 B2
Light emitting diode, manufacturing method thereof and display device including the same
Choelmin Jang, Seoul (KR); Byunghyuk Kwon, Hwaseong-si (KR); Changhee Lee, Seoul (KR); Myungsoo Huh, Suwon-si (KR); Cheollae Roh, Seongnam-si (KR); Jaehoon Kim, Seoul (KR); and Jeong Hye Choi, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Dec. 22, 2021, as Appl. No. 17/560,161.
Application 17/560,161 is a continuation of application No. 16/714,389, filed on Dec. 13, 2019, granted, now 11,239,438.
Claims priority of application No. 10-2019-0034517 (KR), filed on Mar. 26, 2019.
Prior Publication US 2022/0115617 A1, Apr. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/50 (2006.01); H10K 30/80 (2023.01); C09K 11/08 (2006.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/86 (2023.01); H10K 50/115 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01); B82Y 20/00 (2011.01); H10K 102/00 (2023.01)
CPC H10K 30/865 (2023.02) [C09K 11/08 (2013.01); H10K 50/115 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 50/86 (2023.02); H10K 50/865 (2023.02); H10K 59/12 (2023.02); H10K 59/38 (2023.02); H10K 71/00 (2023.02); B82Y 20/00 (2013.01); H10K 2102/00 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light emitting diode, comprising:
a first electrode;
a second electrode opposite the first electrode;
an emission layer between the first electrode and the second electrode, the emission layer comprising a quantum dot;
a first charge transfer layer between the first electrode and the emission layer;
a second charge transfer layer between the second electrode and the emission layer; and
a first layer between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer,
wherein the first layer comprises an inorganic material, and
wherein the second charge transfer layer comprises:
an electron injection layer adjacent to the second electrode; and
an electron transport layer between the electron injection layer and the emission layer.