公开(公告)号：US20250107394A1

公开(公告)日：2025-03-27

申请号：US18738654

申请日：2024-06-10

Applicant: Samsung Display Co., Ltd.

Inventor： HYEONJEONG IM ,  HYOMIN KO

IPC: H10K59/80 ,  H10K50/13 ,  H10K50/15 ,  H10K50/16 ,  H10K59/122 ,  H10K59/38 ,  H10K102/00 ,  H10K102/10

Abstract: A display device includes a base layer including a first pixel area, a second pixel area adjacent to the first pixel area, and a third pixel area adjacent to the second pixel area, wherein each of the first pixel area, the second pixel area and the third pixel area include: a first electrode on the base layer and including a reflective layer, a first light emitting layer on the first electrode and to generate a blue light, a second light emitting layer on the first electrode and to generate a green light, a third light emitting layer on the first light emitting layer and the second light emitting layer and to generate a red light, and a second electrode on the third light emitting layer.

公开(公告)号：US20230129980A1

公开(公告)日：2023-04-27

申请号：US17835229

申请日：2022-06-08

Applicant: Samsung Display Co., Ltd.

Inventor： HYOMIN KO ,  ILSOO OH ,  BORA LEE ,  ILLHUN CHO ,  MINJI KIM

IPC: C07C211/54 ,  C07D307/91 ,  C07D333/76 ,  C07D209/82 ,  C07D405/12 ,  C07D409/12 ,  C07F5/02 ,  H01L51/00

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 disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the hole transport region includes a first hole transport layer disposed adjacent to the first electrode and including a first amine compound having a first refractive index, a second hole transport layer disposed between the first hole transport layer and the emission layer, and including a second amine compound having a second refractive index greater than the first refractive index, and a third hole transport layer disposed between the second hole transport layer and the emission layer, and including a third amine compound having a third refractive index less than the second refractive index, thereby having high luminous efficiency.

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：US20220407028A1

公开(公告)日：2022-12-22

申请号：US17874578

申请日：2022-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： BORA LEE ,  HYOMIN KO ,  ILLHUN CHO ,  EUNJAE JEONG ,  MINJI KIM ,  SOHEE JO ,  DONGJUN KIM ,  HANKYU PAK ,  SANGHYUN HAN

IPC: H01L51/50 ,  C09K11/06 ,  C07C211/54 ,  C07D307/91 ,  C07C211/61 ,  C07D209/88 ,  C07D333/76

Abstract: A light emitting diode of an embodiment 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 disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index which is greater than each of the first refractive index and the second refractive index, thereby showing high light extraction efficiency and high emission efficiency properties.

公开(公告)号：US20220173346A1

公开(公告)日：2022-06-02

申请号：US17380547

申请日：2021-07-20

Applicant: Samsung Display Co., Ltd.

Inventor： HYOMIN KO ,  ILSOO OH

IPC: H01L51/50

Abstract: Provided is an organic electroluminescence device including 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 disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode, the first hole transport layer including a first organic compound having a first dielectric constant and a second hole transport layer disposed between the first hole transport layer and the emission layer, the second hole transport layer including a second organic having a second dielectric constant which is greater than the first dielectric constant.

公开(公告)号：US20250107318A1

公开(公告)日：2025-03-27

申请号：US18970179

申请日：2024-12-05

Applicant: Samsung Display Co., Ltd.

Inventor： HYOMIN KO ,  ILSOO OH

IPC: H10K50/15 ,  H10K50/11 ,  H10K50/852 ,  H10K59/12 ,  H10K59/35 ,  H10K85/30 ,  H10K85/60 ,  H10K101/40 ,  H10K102/00

Abstract: Provided is an organic electroluminescence device including 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 disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode, the first hole transport layer including a first organic compound having a first dielectric constant and a second hole transport layer disposed between the first hole transport layer and the emission layer, the second hole transport layer including a second organic having a second dielectric constant which is greater than the first dielectric constant.

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.

公开(公告)号：US20240023430A1

公开(公告)日：2024-01-18

申请号：US18311769

申请日：2023-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： ILSOO OH ,  HYOMIN KO ,  BORA LEE

IPC: H10K85/60 ,  H10K50/858 ,  H10K59/35 ,  C09K11/06

CPC classification number: H10K85/633 ,  H10K50/858 ,  H10K50/15 ,  C09K11/06 ,  H10K59/35

Abstract: A light emitting element includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region, wherein the hole transport region includes a first hole transport layer which is provided to be adjacent to the first electrode and includes a first amine compound represented by Formula 1, and a second hole transport layer which is provided between then first hole transport layer and the emission layer and has a larger refractive index than that of the first hole transport layer, and the first hole transport layer has a conductivity of about 6.0×10−5 cm/(V·sec) to about 10.0×10−4 cm/(V·sec).

公开(公告)号：US20230363261A1

公开(公告)日：2023-11-09

申请号：US18347995

申请日：2023-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： BORA LEE ,  HYOMIN KO ,  ILLHUN CHO ,  EUNJAE JEONG ,  MINJI KIM ,  SOHEE JO ,  DONGJUN KIM ,  HANKYU PAK ,  SANGHYUN HAN

IPC: H10K85/60 ,  C07C211/54 ,  C07C211/61 ,  C07D209/88 ,  C07D307/91 ,  C07D333/76 ,  H10K50/15 ,  H10K50/818 ,  H10K50/828 ,  H10K50/858

CPC classification number: H10K85/633 ,  C07C211/54 ,  C07C211/61 ,  C07D209/88 ,  C07D307/91 ,  C07D333/76 ,  H10K50/156 ,  H10K50/818 ,  H10K50/828 ,  H10K50/858 ,  H10K85/636 ,  C07C2603/74 ,  C07C2603/18 ,  C07C2601/14 ,  H10K85/615 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2102/351

Abstract: A light emitting diode of an embodiment 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 disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index which is greater than each of the first refractive index and the second refractive index, thereby showing high light extraction efficiency and high emission efficiency properties.