公开(公告)号：US20220336750A1

公开(公告)日：2022-10-20

申请号：US17515912

申请日：2021-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeyong LEE ,  Jungmin KANG ,  Kyungsik KIM ,  Yeongrong PARK ,  Seokgyu YOON

IPC: H01L51/00

Abstract: Provided are a light-emitting device and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode. The first electrode includes an oxide of: tungsten (W), molybdenum (Mo), copper (Cu), nickel (Ni), vanadium (V), or any combination thereof. The interlayer includes an emission layer and a layer including a tertiary amine compound including an organic selenium moiety, and the interlayer does not include a p-dopant.

公开(公告)号：US20220255011A1

公开(公告)日：2022-08-11

申请号：US17544832

申请日：2021-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeyong LEE ,  Seokgyu YOON ,  Jungmin KANG ,  Kyungsik KIM ,  Hyeongpil KIM ,  Jaejin LYU ,  Kunwook CHO

IPC: H01L51/00

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 an emission layer, a hole transport region between the first electrode and the emission layer, and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a hole injection layer and a hole transport layer, sequentially arranged between the first electrode and the emission layer, the first electrode includes aluminum, an alloy including aluminum, or any combination thereof, the hole injection layer consists of a first inorganic material as described herein, and an absolute value of a work function of the first inorganic material is greater than or equal to an absolute value of a HOMO energy level of the hole transport layer, and the hole transport region excludes a p-dopant.

公开(公告)号：US20220123250A1

公开(公告)日：2022-04-21

申请号：US17307451

申请日：2021-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Jungmin KANG ,  Kyungsik KIM ,  Seokgyu YOON ,  Jaeyong LEE ,  Kunwook CHO

IPC: H01L51/50 ,  H01L27/32

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, the interlayer including an emission layer. The first electrode may be doped with a metal oxide having a work function of less than about −5.05 electron volts (eV), and a layer including a halide of a lanthanide may be between the first electrode and the emission layer. An electronic apparatus including the light-emitting device is also provided.

公开(公告)号：US20210351359A1

公开(公告)日：2021-11-11

申请号：US17277710

申请日：2019-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong KIM ,  Jungmin KANG ,  Tsuyoshi NAIJO ,  Hyein JEONG ,  Soungwook KIM

IPC: H01L51/00 ,  C07D471/06 ,  C09K11/06

Abstract: An organic light-emitting device includes a condensed cyclic compound represented by Formula 1: The condensed cyclic compound has an electron withdrawing group (EWG) substituent and an electron donating group (EDG) substituent at suitable positions, and thus has a low ΔEST and may be used as an effective thermally activated delayed fluorescence (TADF) light-emitting material.