公开(公告)号：US20240237466A9

公开(公告)日：2024-07-11

申请号：US18365663

申请日：2023-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： SANG GYUN KIM ,  HYOMIN KO ,  ILHA SONG ,  ILSOO OH

IPC: H10K59/38 ,  G02B27/01 ,  H10K59/122 ,  H10K102/00

CPC classification number: H10K59/38 ,  G02B27/0172 ,  H10K59/122 ,  H10K2102/351

Abstract: Provided is a display panel including a circuit layer and a display element layer above the circuit layer. The display element layer may include a first light-emitting element, a second light-emitting element, and a pixel-defining film that are spaced apart in a direction perpendicular to the thickness direction. The first light-emitting element may include an optical auxiliary layer and a conductive layer sequentially stacked between the first electrode and the hole transport region, and the second light-emitting element may omit the optical auxiliary layer and the conductive layer. The optical auxiliary layer may be spaced apart from the hole transport region with the conductive layer interposed therebetween.

公开(公告)号：US20240138225A1

公开(公告)日：2024-04-25

申请号：US18365663

申请日：2023-08-03

Applicant: Samsung Display Co., Ltd.

Inventor： SANG GYUN KIM ,  HYOMIN KO ,  ILHA SONG ,  ILSOO OH

IPC: H10K59/38 ,  G02B27/01 ,  H10K59/122 ,  H10K102/00

CPC classification number: H10K59/38 ,  G02B27/0172 ,  H10K59/122 ,  H10K2102/351

Abstract: Provided is a display panel including a circuit layer and a display element layer above the circuit layer. The display element layer may include a first light-emitting element, a second light-emitting element, and a pixel-defining film that are spaced apart in a direction perpendicular to the thickness direction. The first light-emitting element may include an optical auxiliary layer and a conductive layer sequentially stacked between the first electrode and the hole transport region, and the second light-emitting element may omit the optical auxiliary layer and the conductive layer. The optical auxiliary layer may be spaced apart from the hole transport region with the conductive layer interposed therebetween.

公开(公告)号：US20240357852A1

公开(公告)日：2024-10-24

申请号：US18587624

申请日：2024-02-26

Applicant: Samsung Display Co., Ltd.

Inventor： SUNG-SOO BAE ,  TSUYOSHI NAIJO ,  SANG GYUN KIM ,  HOJUNG SYN ,  HYOSUP SHIN ,  JIYOUNG LEE ,  CHANGWOONG CHU

IPC: H10K50/17 ,  C09K11/06 ,  H10K50/18 ,  H10K59/35 ,  H10K85/30 ,  H10K85/60 ,  H10K102/00

CPC classification number: H10K50/171 ,  C09K11/06 ,  H10K50/18 ,  H10K59/353 ,  H10K85/342 ,  H10K85/346 ,  H10K85/626 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6572 ,  H10K2102/351

Abstract: A light emitting element includes 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. The electron transport region includes an electron transport layer on the emission layer, a first electron injection layer on the electron transport layer, and a second electron injection layer on the first electron injection layer, the thicknesses of the first and second electron injection layers are each about 1 nm to about 5 nm, the first electron injection layer includes a phenanthroline derivative and/or a phosphine oxide derivative, and the second electron injection layer includes a metal material.

公开(公告)号：US20240179937A1

公开(公告)日：2024-05-30

申请号：US18365128

申请日：2023-08-03

Applicant: Samsung Display Co., Ltd.

Inventor： ILHA SONG ,  HYOMIN KO ,  SANG GYUN KIM ,  HYEONGPIL KIM ,  BORA LEE ,  HYEONMI LEE

IPC: H10K50/19 ,  H10K59/122 ,  H10K59/38 ,  H10K59/80

CPC classification number: H10K50/19 ,  H10K59/122 ,  H10K59/38 ,  H10K59/80517 ,  H10K2102/351

Abstract: A display panel includes a circuit layer and a display element layer that includes light emitting elements emitting white light, wherein the light emitting elements each include a first electrode, an optical auxiliary layer on the first electrode, a conductive layer on the optical auxiliary layer, a hole transport region on the conductive layer, a first light emitting layer on the hole transport region and emitting first light, a light emitting auxiliary unit on the first light emitting layer, a second light emitting layer on the light emitting auxiliary unit and generating second light, a third light emitting layer either between the first light emitting layer and the light emitting auxiliary unit or between the light emitting auxiliary unit and the second light emitting layer and generating third light, an electron transport region on the second light emitting layer, and a second electrode on the electron transport region.