公开(公告)号：US20230217817A1

公开(公告)日：2023-07-06

申请号：US18150053

申请日：2023-01-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongchan Lee ,  Jinwon Sun ,  Eunhye Song ,  Jonghyeon Lee ,  Pyungeun Jeon ,  Changwoong Chu

IPC: H10K85/60 ,  H10K85/30 ,  C09K11/06

CPC classification number: H10K85/654 ,  C09K11/06 ,  H10K85/346 ,  H10K85/6572 ,  H10K50/166

Abstract: A light-emitting device includes an electron transport region including a first electron transport layer and a second electron transport layer. The first electron transport layer includes a first compound, the second electron transport layer includes a second compound, the first compound includes a pyrimidine group, the second compound includes a triazine group, and an absolute value of a lowest unoccupied molecular orbital (LUMO) energy of the first compound (ELUMO_E1) is less than an absolute value of a LUMO energy of the second compound (ELUMO_E2). An electronic apparatus including the light-emitting device.

公开(公告)号：US11482680B2

公开(公告)日：2022-10-25

申请号：US16721753

申请日：2019-12-19

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Jinwon Sun ,  Jaejin Lyu

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

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and comprising a fluorescent emission layer. The fluorescent emission layer includes a first host (H1), a second host (H2), a first dopant (D1), and a second dopant (D2).

公开(公告)号：US20220285633A1

公开(公告)日：2022-09-08

申请号：US17653260

申请日：2022-03-02

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Lee ,  Eunhye Song ,  Pyungeun Jeon ,  Jinwon Sun

IPC: H01L51/00

Abstract: The present application provides a light-emitting device. The light-emitting device includes: a first electrode; a second electrode; and an interlayer located between the first electrode and the second electrode, the interlayer including an emission layer, wherein the emission layer includes a first compound represented by Formula 1 and a second compound including at least one of an electron withdrawing group and a π electron-deficient nitrogen-containing C1-C60 cyclic group.