公开(公告)号：US20230189633A1

公开(公告)日：2023-06-15

申请号：US17901519

申请日：2022-09-01

Applicant: Samsung Display Co., Ltd.

Inventor： SEULONG KIM ,  HAJIN SONG ,  JIHWAN YOON ,  JINA HUR ,  JAEHOON HWANG

IPC: H01L51/00 ,  C07F7/08 ,  C09K11/06

CPC classification number: H01L51/0094 ,  C07F7/0814 ,  C09K11/06 ,  C07F7/081 ,  H01L51/5064

Abstract: A light emitting element that includes a first electrode, a first hole transport region on the first electrode, a first emission layer on the first hole transport region, a first electron transport region on the first emission layer, and a second electrode on the first electron transport region is provided. The first hole transport region includes a polycyclic compound represented by Formula 1 and a compound represented by Formula H-1:

公开(公告)号：US20220320467A1

公开(公告)日：2022-10-06

申请号：US17591091

申请日：2022-02-02

Applicant: Samsung Display Co., Ltd.

Inventor： JIMYOUNG YE ,  SEULONG KIM ,  HAJIN SONG ,  JIHWAN YOON ,  HYEKYUN LEE ,  DONGSEOB JEONG ,  JAEHOON HWANG

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

Abstract: A light emitting device includes: a first electrode; a hole transport region disposed on the first electrode; a first emission layer disposed on the hole transport region, and which emits light of a first wavelength; a second emission layer disposed on the hole transport region, and which emits light of a second wavelength different from the first wavelength; an electron transport region disposed on the first emission layer and the second emission layer; a second electrode disposed on the electron transport region; and a capping layer disposed on the second electrode. In exit light emitted to an upper surface of the capping layer, the exit light has a maximum intensity at an azimuth angle of about 25° to about 35°.

公开(公告)号：US20230137462A1

公开(公告)日：2023-05-04

申请号：US17860395

申请日：2022-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： YOONSEOK KA ,  DONG CHAN KIM ,  JIYOUNG MOON ,  HAKCHOONG LEE ,  HAJIN SONG ,  JIHWAN YOON ,  JAEHOON HWANG

IPC: H01L51/00 ,  H01L51/50

Abstract: A light emitting element includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region which is disposed on the emission layer and includes an electron transport layer and an electron injection layer disposed on the electron transport layer, and a second electrode disposed on the electron transport region, wherein the electron injection layer includes a host represented by Formula A or Formula B, and a metal dopant, and the metal dopant includes Ag, Bi, Mg, Li, Yb, Cu, La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Lu, thereby improving electron injection characteristics and having excellent or suitable luminous efficiency.

公开(公告)号：US20220336766A1

公开(公告)日：2022-10-20

申请号：US17575583

申请日：2022-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： JIMYOUNG YE ,  SEULONG KIM ,  HYEKYUN LEE ,  HAJIN SONG ,  JIHWAN YOON ,  DONGSEOB JEONG ,  JAEHOON HWANG

IPC: H01L51/50

Abstract: A light emitting devices includes a first electrode, a hole transport region on the first electrode, a first emission layer on the hole transport region, the first emission layer to emit light of a first wavelength, a second emission layer on the hole transport region and to emit light of a second wavelength, an electron transport region on the first and second emission layers, and a second electrode on the electron transport region. The first emission layer includes a first sub-emission layer including a first hole transport host and a first sub-dopant to emit the light of the first wavelength, and a second sub-emission layer including a first electron transport and a second sub-dopant to emit the light of the first wavelength. The second emission layer includes a second hole transport host, a second electron transport host, and a second dopant to emit the light of the second wavelength.

公开(公告)号：US20230130009A1

公开(公告)日：2023-04-27

申请号：US17903572

申请日：2022-09-06

Applicant: Samsung Display Co., Ltd.

Inventor： SEHO LEE ,  TAEHYUNG KIM ,  JIHWAN YOON ,  YONGDAE LEE ,  SANGWOO PYO ,  JAEHOON HWANG

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/52

Abstract: A display panel includes a circuit layer on a base substrate, a first electrode and an auxiliary electrode disposed on the circuit layer, and spaced apart from each other, a charge generation layer on the first electrode and the auxiliary electrode, a first opening region being defined in the charge generation layer, a second electrode on the charge generation layer, a first organic layer disposed between the first electrode and the charge generation layer, a second opening region being defined in the first organic layer, and a second organic layer disposed between the charge generation layer and the second electrode, a third opening region being defined in the second organic layer. The second electrode is electrically connected to the auxiliary electrode through the first to third opening regions, and the second organic layer includes a protrusion adjacent to the third opening region.

公开(公告)号：US20220328767A1

公开(公告)日：2022-10-13

申请号：US17691267

申请日：2022-03-10

Applicant: Samsung Display Co., Ltd. ,  Solus Advanced Materials Co., Ltd.

Inventor： SEULONG KIM ,  Jinwoong KIM ,  Hojun SON ,  HAJIN SONG ,  Hyobum SONG ,  JIHWAN YOON ,  JAEHOON HWANG ,  Taehyung KIM ,  Hocheol PARK ,  Minsik EUM ,  Jaehoon LEE

IPC: H01L51/00 ,  C07D471/04 ,  C09K11/06 ,  C07F9/6561

Abstract: Provided is a polycyclic compound and a light emitting element including the polycyclic compound. The light emitting element includes a first electrode, a second electrode facing the first electrode, light emitting structures disposed between the first electrode and the second electrode, and a charge generation layer disposed between adjacent ones of the light emitting structures and including a polycyclic compound represented by Formula 1, thereby exhibiting high luminous efficiency.