US 11,925,044 B2
Light emitting device, method of manufacturing same and display device including same
Tae Ho Kim, Seongnam-si (KR); Won Sik Yoon, Seoul (KR); Jeong Hee Lee, Seongnam-si (KR); Eun Joo Jang, Suwon-si (KR); and Oul Cho, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Sep. 14, 2022, as Appl. No. 17/944,394.
Application 17/083,832 is a division of application No. 16/530,253, filed on Aug. 2, 2019, granted, now 10,854,836, issued on Dec. 1, 2020.
Application 17/944,394 is a continuation of application No. 17/083,832, filed on Oct. 29, 2020, granted, now 11,450,826, issued on Sep. 20, 2022.
Claims priority of application No. 10-2018-0090844 (KR), filed on Aug. 3, 2018.
Prior Publication US 2023/0043694 A1, Feb. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 50/115 (2023.01); H10K 50/81 (2023.01); H10K 50/84 (2023.01); H10K 59/00 (2023.01); H10K 71/00 (2023.01); H10K 102/10 (2023.01)
CPC H10K 50/115 (2023.02) [H10K 50/81 (2023.02); H10K 50/84 (2023.02); H10K 71/00 (2023.02); H10K 59/00 (2023.02); H10K 2102/103 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a first electrode and a second electrode facing each other,
an emissive layer disposed between the first electrode and the second electrode and comprising a plurality of quantum dots, and
an electron auxiliary layer disposed between the emissive layer and the second electrode and comprising a plurality of nanoparticles,
wherein a nanoparticle of the plurality of nanoparticle comprises a metal oxide comprising zinc,
wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface,
wherein the light emitting device comprises a polymer layer disposed on at least a portion of the second surface of the second electrode and directly on at least a portion of the surface of the electron auxiliary layer, and
wherein the polymer layer comprises a polymerization product of a monomer comprising an unsaturated compound having a carbon-carbon unsaturated bond.