公开(公告)号：US20200373492A1

公开(公告)日：2020-11-26

申请号：US16696939

申请日：2019-11-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn ,  Jinwon Sun ,  Hyun Shin ,  Bohyun Yoon

IPC: H01L51/00

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer and a buffer layer between the emission layer and the second electrode, the buffer layer directly contacts the emission layer and includes a first compound and a quinolinolato-based metal complex, and the first compound is a compound including at least one electron transporting moiety.

公开(公告)号：US20240324267A1

公开(公告)日：2024-09-26

申请号：US18410664

申请日：2024-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung Lee ,  Makoto Yamamoto ,  Tsuyoshi Naijo ,  Toshiyuki Matsuura ,  Sungsoo Bae ,  Hojung Syn ,  Hyosup Shin ,  Heechoon Ahn ,  Changwoong Chu

IPC: H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/346 ,  H10K85/40 ,  H10K85/6572 ,  H10K85/658 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/90

Abstract: A light-emitting device includes an emission layer including a first host, a second host, a first dopant, and a second dopant. The first dopant is a metal-containing compound, the second dopant is a boron-containing compound, the first host and the second host combine to form a host exciplex, the host exciplex is in a triplet (T1) state, and the host exciplex in the T1 state is also in a local-excitation state.

公开(公告)号：US20240324262A1

公开(公告)日：2024-09-26

申请号：US18413769

申请日：2024-01-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyosup Shin ,  Makoto Yamamoto ,  Tsuyoshi Naijo ,  Toshiyuki Matsuura ,  Sungsoo Bae ,  Hojung Syn ,  Heechoon Ahn ,  Jiyoung Lee ,  Changwoong Chu

IPC: H10K50/11 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K50/11 ,  H10K85/324 ,  H10K85/615 ,  H10K85/654 ,  H10K85/6572

Abstract: A composition includes a first compound and a second compound different from the first compound and satisfies Expressions 1 and 2:








PLQY
⁢

(
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)


>

70
⁢

%





Expression
⁢

1













T

公开(公告)号：US20240237382A1

公开(公告)日：2024-07-11

申请号：US18528513

申请日：2023-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyosup Shin ,  Tsuyoshi Naijo ,  Sungsoo Bae ,  Hojung Syn ,  Changwoong Chu

IPC: H10K50/12 ,  H10K50/15 ,  H10K50/16

CPC classification number: H10K50/12 ,  H10K50/15 ,  H10K50/16

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode and including a reverse potential layer and an emission layer, where a sign of a giant surface potential value of the reverse potential layer is opposite to a sign of a giant surface potential value of the emission layer.