公开(公告)号：US20210098716A1

公开(公告)日：2021-04-01

申请号：US17035552

申请日：2020-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGSUB LEE ,  HYUNYOUNG KIM ,  JIYOUNG LEE ,  HYEJIN JUNG ,  MINJE KIM ,  EUNG DO KIM ,  HYOJEONG KIM ,  HYOSUP SHIN ,  SEOKGYU YOON ,  YOUNGKI LEE ,  KUNWOOK CHO ,  HYEON GU CHO ,  MINSOO CHOI ,  YOUNGEUN CHOI ,  HYEIN JEONG ,  JAEJIN LYU

IPC: H01L51/00

Abstract: An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, a second electrode, and an emission layer. The emission layer includes host compounds and dopant compounds. The hot compounds include a first host compound represented by Formula 1, and a second host compound represented by Formula 2, and the dopant compounds include an assistant dopant compound represented by Formula 3, and a light-emitting dopant compound represented by Formula 4: Accordingly, the organic electroluminescence device according to an embodiment may achieve high efficiency and long life.

公开(公告)号：US20230413592A1

公开(公告)日：2023-12-21

申请号：US18449368

申请日：2023-08-14

Applicant: Samsung Display Co., LTD.

Inventor： SUNGWOOK KIM ,  Kyungsik KIM ,  SeulOng KIM ,  TSUYOSHI NAIJO ,  SUNG-SOO BAE ,  Dongchan LEE ,  HYEIN JEONG ,  Hyewon CHOI ,  Seung-Jin CHU ,  Jaeweon HUR

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

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

Abstract: A light emitting element includes: a first electrode, a second electrode facing the first electrode, a first light emitting layer between the first electrode and the second electrode to emit a first light, a second light emitting layer between the first light emitting layer and the second electrode to emit a second light, and an intermediate layer including a host material between the first light emitting layer and the second light emitting layer and, wherein the intermediate layer has a thickness of from about 90 nm to 170 nm.

公开(公告)号：US20200321535A1

公开(公告)日：2020-10-08

申请号：US16721613

申请日：2019-12-19

Applicant: Samsung Display Co., Ltd. ,  Seoul National University R&DB Foundation

Inventor： SooYoung PARK ,  SEHUN KIM ,  JiEon KWON ,  Hyojeong KIM ,  ChiHyun RYOO ,  Changhee LEE ,  HYEIN JEONG ,  Jongseok HAN

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a compound represented by Formula 1 below. Improved emission efficiency and color purity properties may be shown.

公开(公告)号：US20240130222A1

公开(公告)日：2024-04-18

申请号：US18528604

申请日：2023-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyejin JUNG ,  Minje KIM ,  EUNG DO KIM ,  Hyunyoung KIM ,  Hyojeong KIM ,  HYOSUP SHIN ,  SEOKGYU YOON ,  Youngki LEE ,  JUNGSUB LEE ,  Jiyoung LEE ,  Kunwook CHO ,  HYEON GU CHO ,  Minsoo CHOI ,  Youngeun CHOI ,  HYEIN JEONG

IPC: H10K85/40 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K85/40 ,  H10K85/322 ,  H10K85/342 ,  H10K85/346 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a first host and a second host which are different from each other, a first dopant including an organic metal complex containing Ir, Ru, Rh, Pt, Pd, Cu, or Os as a central metal atom, and a second dopant represented by Formula D-2 below, and thereby the organic electroluminescence device may exhibit high luminous efficiency and long service life characteristics.

公开(公告)号：US20240114739A1

公开(公告)日：2024-04-04

申请号：US18368498

申请日：2023-09-14

Applicant: Samsung Display Co., Ltd.

Inventor： SEUNG-LYONG BOK ,  Chang Sik KIM ,  JUNGJIN YANG ,  HYEIN JEONG

IPC: H10K59/35 ,  H10K59/122

CPC classification number: H10K59/352 ,  H10K59/122 ,  H10K59/351

Abstract: A display apparatus includes a first area and a second area, a pixel defining layer having a first opening in the first area with a first area size, and a second opening in the second area with a second area size, a first light emitting unit having an emission area size corresponding to the first area size and emitting first color light, a second light emitting unit having an emission area size corresponding to the second area size and emitting the first color light, a first pixel circuit in the second area and connected to the first light emitting unit, a second pixel circuit in the second area and connected to the second light emitting unit, and an electronic module in the first area and overlapping the first opening. An opening rate of the first light emitting unit is smaller than that of the second light emitting unit.

公开(公告)号：US20250063884A1

公开(公告)日：2025-02-20

申请号：US18939409

申请日：2024-11-06

Applicant: Samsung Display Co., LTD.

Inventor： SUNGWOOK KIM ,  Kyungsik KIM ,  SeulOng KIM ,  TSUYOSHI NAIJO ,  SUNG-SOO BAE ,  Dongchan LEE ,  HYEIN JEONG ,  Hyewon CHOI ,  Seung-Jin CHU ,  Jaeweon HUR

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

Abstract: A light emitting element includes: a first electrode, a second electrode facing the first electrode, a first light emitting layer between the first electrode and the second electrode to emit a first light, a second light emitting layer between the first light emitting layer and the second electrode to emit a second light, and an intermediate layer including a host material between the first light emitting layer and the second light emitting layer and, wherein the intermediate layer has a thickness of from about 90 nm to 170 nm.

公开(公告)号：US20220029113A1

公开(公告)日：2022-01-27

申请号：US17308280

申请日：2021-05-05

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

Inventor： MI EUN JUN ,  HYEIN JEONG ,  Soon-Ki KWON ,  Yun-Hi KIM ,  Youheon KIM

IPC: H01L51/00

Abstract: Provided is an organic electroluminescence device including a first electrode, an organic layer on the first electrode, and a second electrode on the organic layer, wherein the organic layer includes a polycyclic compound represented by Formula 1. The organic electroluminescence device including a polycyclic compound represented by Formula 1 thereby exhibits high luminous efficiency.