公开(公告)号：US20220399404A1

公开(公告)日：2022-12-15

申请号：US17672628

申请日：2022-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： YOUNGMIN KIM ,  SHIN TACK KANG ,  YUJIN KIM ,  HAEIL PARK ,  HAJIN SONG ,  KAP SOO YOON

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

Abstract: A display panel includes: a window including a display area, and a non-display area adjacent to the display area; a color filter layer on the window; a circuit element layer including: a low refractive index layer covering the color filter layer; and a transistor on the low refractive index layer; a light control layer including: division partition walls on the circuit element layer; and a light control pattern between the division partition walls, and including quantum dots; and a display element layer on the light control layer, and including: a first electrode; a second electrode on the first electrode; and an emission layer between the first electrode and the second electrode and to generate light. The light passes through the light control layer, the circuit element layer, and the color filter layer to be transmitted to the window.

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.

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：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：US20230157148A1

公开(公告)日：2023-05-18

申请号：US17881373

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： SEULONG KIM ,  EUNGYOUNG PARK ,  HAJIN SONG ,  JONGWON LEE ,  JAEHOON HWANG

IPC: H01L51/00 ,  C07F1/02 ,  C09K11/06

CPC classification number: H01L51/0077 ,  C07F1/02 ,  C09K11/06 ,  H01L51/5076

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

公开(公告)号：US20230084087A1

公开(公告)日：2023-03-16

申请号：US17745604

申请日：2022-05-16

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGHO CHOI ,  PILGU KANG ,  SEULONG KIM ,  HAJIN SONG ,  DONGSEOB JEONG ,  YANG-JIN CHO

IPC: H01L51/50 ,  H01L27/32

Abstract: Provided is a light emitting device including a first electrode, a hole transport region on the first electrode, a first light emitting layer on the hole transport region and emitting light of a first wavelength, a second light emitting layer on the hole transport region and emitting light of a second wavelength different from the first wavelength, an electron transport region on the first light emitting layer and the second light emitting layer, and a second electrode on the electron transport region. The second light emitting layer includes a first sub-light emitting layer including a first host having a first hole transporting host and a first electron transporting host and a dopant emitting light of the second wavelength, and a second sub-light emitting layer including a second host and a second hole transporting host, but not including the dopant. The light emitting device provides improved light emitting efficiency.

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°.