公开(公告)号：US11158831B2

公开(公告)日：2021-10-26

申请号：US16560272

申请日：2019-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehyun Lee ,  Mikyung Kim ,  Seunggak Yang ,  Jiwon Kwak ,  Namwoo Kim ,  Byounghee Park ,  Hanbyul Jang

IPC: H01L51/52 ,  H01L51/50

Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: an anode; a cathode; and an organic layer between the anode and the cathode and including an emission layer, wherein the emission layer includes a first emission layer including a first host, a second host, and a first dopant, and a second emission layer including a third host, a fourth host, and a second dopant, and the organic light-emitting device satisfies Equations 1 and 2.

公开(公告)号：US20220399504A1

公开(公告)日：2022-12-15

申请号：US17751589

申请日：2022-05-23

Applicant: Samsung Display Co., Ltd. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

Inventor： Mikyung KIM ,  Yunhi Kim ,  Soonki Kwon ,  Namwoo Kim ,  Jihyeon Kim ,  Byounghee Park ,  Seunggak Yang

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, wherein the interlayer includes an emission layer, and the emission layer includes a first compound of Formula 1-1 or Formula 1-2 and a second compound of Formula 2, as described herein.

公开(公告)号：US11355563B2

公开(公告)日：2022-06-07

申请号：US16158520

申请日：2018-10-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeongwoo Moon ,  Byounghee Park ,  Jinkoo Chung

IPC: H01L27/32 ,  H01L27/12 ,  H01L51/52 ,  H01L51/50

Abstract: A display device includes a first substrate, an organic light emitting element on the first substrate and including a first electrode, an organic light emitting layer, and a second electrode, a pixel defining layer surrounding the first electrode, a thin film encapsulation layer, and a capping layer on the thin film encapsulation layer. The capping layer may include two reflective interfaces adjacent the light emission or pixel area spaced apart from one another in a plane view. The reflective interfaces may include a boundary between high and low refractive index materials and/or a reflective layer.

公开(公告)号：US20210104698A1

公开(公告)日：2021-04-08

申请号：US17060532

申请日：2020-10-01

Applicant: Samsung Display Co., LTD.

Inventor： Mikyung KIM ,  Jaehyun Lee ,  Seunggak Yang ,  Byounghee Park ,  Jihyun Seo

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer disposed between the first electrode and the second electrode and includes an emission layer; and a first compound and a second compound; wherein the first compound includes a hole transport compound not including an electron transport moiety, and the second compound includes an electron transport compound including an electron transport moiety or a bipolar compound including an electron transport moiety, wherein the second compound includes deuterium.