公开(公告)号：US11706939B2

公开(公告)日：2023-07-18

申请号：US16684325

申请日：2019-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Dongkyu Seo ,  Wonjong Kim ,  Yeongrong Park ,  Hyeongpil Kim ,  Junghee An ,  Byeongwook Yoo ,  Byungseok Lee

IPC: H01L51/00 ,  H10K50/818 ,  H10K50/82 ,  H10K50/115 ,  H10K50/84 ,  H10K85/30

CPC classification number: H10K50/818 ,  H10K50/115 ,  H10K50/82 ,  H10K50/841 ,  H10K85/351

Abstract: A luminescence device includes a first electrode, a first emission portion disposed on the first electrode, a second electrode disposed on the first emission portion, and a capping layer disposed on the second electrode and including a metal atom and a metal halide compound, wherein the metal atom is a lanthanide metal, a transition metal, or a post-transition metal and the metal halide compound is formed by combining an alkali metal atom and a halogen atom.

公开(公告)号：US11706937B2

公开(公告)日：2023-07-18

申请号：US17088178

申请日：2020-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil Kim ,  Wonjong Kim ,  Yeongrong Park ,  Dongkyu Seo ,  Junyong Shin ,  Junghee An ,  Byeongwook Yoo ,  Daeho Lee ,  Byungseok Lee

IPC: H01L51/50 ,  H10K50/13 ,  H10K50/19 ,  H10K50/155 ,  H10K50/15 ,  H10K85/60 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K50/131 ,  H10K50/155 ,  H10K50/156 ,  H10K50/19 ,  H10K85/615 ,  H10K85/622 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K2101/30 ,  H10K2102/351

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode, each emission unit including at least one emission layer; and m−1 charge generating layers respectively located between two adjacent emission units among them emission units, each of the charge generating layers including one n-type charge generating region and one p-type charge generating region, wherein m is an integer of 2 or more, and at least one of the m−1 p-type charge generating regions includes a phosphate-containing compound.