公开(公告)号：US20220123227A1

公开(公告)日：2022-04-21

申请号：US17271361

申请日：2018-12-10

Applicant: Samsung Display Co., Ltd.

Inventor： Junha PARK ,  Jang Yeol BAEK ,  Mun-Ki SIM ,  Hyoyoung LEE ,  Soo-Byung KO ,  Young Kook KIM

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one organic layer among the organic layers includes a fused polycyclic compound in which a dibenzoheterocyclic derivative and a monoheterocyclic derivative containing at least one nitrogen atom as a ring-forming atom are connected via a linker to form a ring, thereby showing improved emission efficiency and improved device reliability.

公开(公告)号：US20220158099A1

公开(公告)日：2022-05-19

申请号：US17250808

申请日：2019-09-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sanghyun HAN ,  Jongwoo KIM ,  Eunjae JEONG ,  Dongjun KIM ,  Wonmin YUN ,  Young Kook KIM ,  Eung Seok PARK ,  Yongchan JU ,  Yisu KIM ,  Byoungduk LEE ,  Seokhwan HWANG

IPC: H01L51/00 ,  H01L51/52 ,  C07D239/34 ,  C07D405/04 ,  C07D251/22

Abstract: A display apparatus according to an embodiment includes light-emitting devices and an encapsulation member, wherein the encapsulation member includes a light absorber including a hexagonal heterocycle containing two or more nitrogen atoms as ring-forming atoms, and first to third substituents substituted at the hexagonal heterocycle, the first to third substituents being different from one another, and thus can effectively block external light, thereby exhibiting improved reliability.

公开(公告)号：US20180138373A1

公开(公告)日：2018-05-17

申请号：US15807297

申请日：2017-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun HAN ,  Jong Woo KIM ,  Young Kook KIM ,  Seok Hwan HWANG

IPC: H01L33/48

CPC classification number: H01L33/48 ,  H01L51/00 ,  H01L51/006 ,  H01L51/5262

Abstract: A light emitting diode is presented, including: a first electrode; a second electrode overlapping the first electrode; an emission layer interposed between the first electrode and the second electrode; and a light efficiency improving layer positioned on at least one of the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode may include one surface facing the emission layer and the other surface opposing the one surface and including the other surface on which the light efficiency improving layer is positioned.