公开(公告)号：US20210226145A1

公开(公告)日：2021-07-22

申请号：US17205015

申请日：2021-03-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Young CHUNG ,  Kwanghee KIM ,  Hongkyu SEO ,  Eun Joo JANG ,  Oul CHO ,  Tae Hyung KIM ,  Yuho WON ,  Hee Jae LEE

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56

Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.

公开(公告)号：US20200083470A1

公开(公告)日：2020-03-12

申请号：US16549472

申请日：2019-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Young CHUNG ,  Kwanghee KIM ,  Hongkyu SEO ,  Eun Joo JANG ,  Oul CHO ,  Tae Hyung KIM ,  Yuho WON ,  Hee Jae LEE

IPC: H01L51/50 ,  H01L51/56 ,  C09K11/06 ,  H01L51/00

Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.