公开(公告)号：US12281248B2

公开(公告)日：2025-04-22

申请号：US17296347

申请日：2019-11-28

Applicant: SFC CO., LTD. ,  HODOGAYA CHEMICAL CO., LTD.

Inventor： Sung-hoon Joo ,  Byung-sun Yang ,  Su-jin Kim ,  Ji-hwan Kim ,  Hyeon-jun Jo ,  Sung-eun Choi ,  Bong-ki Shin ,  Young-hwan Park ,  Shuichi Hayashi ,  Takeshi Yamamoto ,  Shunji Mochizuki ,  Yuta Hirayama

IPC: H01L51/00 ,  C07F5/02 ,  C07F11/00 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/844

Abstract: An organic light-emitting element according to the present invention employs a polycyclic aromatic derivative compound in a light-emitting layer inside the element, and further comprises a capping layer. Thus, the organic light-emitting element can be made highly efficient and can be useful for a device selected from among a flat panel display device, a flexible display device, a monochrome or white flat panel lighting device, and a monochrome or white flexible lighting device.

公开(公告)号：US20240341189A1

公开(公告)日：2024-10-10

申请号：US18617943

申请日：2024-03-27

Applicant: SFC CO., LTD.

Inventor： Ji-hwan Kim ,  Kyung-Hwa Park ,  Hyeon-jun Jo ,  Seong-eun Woo ,  Soo-kyung Kang ,  Da-Yeon Lee ,  Hui-Jae Choi ,  Ji-hyun Lee ,  Sung-hoon Joo

IPC: H10K85/60 ,  C07F5/02 ,  C07F7/08 ,  C09K11/06 ,  H10K50/12 ,  H10K85/40

CPC classification number: H10K85/658 ,  C07F5/027 ,  C07F7/0812 ,  C09K11/06 ,  H10K85/40 ,  C09K2211/1018 ,  H10K50/12

Abstract: Disclosed are a polycyclic compound with a specific fused ring structure and an organic light emitting device including a light emitting layer that employs the polycyclic compound. The use of the polycyclic compound ensures significantly long lifetime and improved luminous efficiency of the device.

公开(公告)号：US12137613B2

公开(公告)日：2024-11-05

申请号：US17767819

申请日：2020-10-12

Applicant: SFC CO., LTD

Inventor： Bong-ki Shin ,  Sung-hoon Joo ,  Byung-sun Yang ,  Ji-hwan Kim ,  Hyeon-jun Jo ,  Sung-eun Choi

IPC: H10K85/60 ,  C09K11/06 ,  H10K85/40

Abstract: The present invention relates to a novel polycyclic compound employed in an organic layer of an organoelectro luminescent device, wherein the organoelectro luminescent device employing the compound according to the present invention has remarkably improved luminous efficiency and a long lifespan. According to the present invention, it is possible to implement a highly efficient and long-life organoelectro luminescent device that can be effectively applied to various display devices.

公开(公告)号：US20230138055A1

公开(公告)日：2023-05-04

申请号：US17909100

申请日：2021-02-16

Applicant: Hodogaya Chemical Co., Ltd. ,  SFC Co., Ltd.

Inventor： Junichi Izumida ,  Kouki Kase ,  Takeshi Yamamoto ,  Kazuyuki Suruga ,  Shuichi Hayashi ,  Norimasa Yokoyama ,  Soon-wook Cha ,  Sung-hoon Joo ,  Byung-sun Yang ,  Ji-hwan Kim

IPC: H10K85/60 ,  C07C211/54 ,  C09K11/06 ,  C07C211/61

Abstract: The triarylamine compound having a specific structure in the present invention is excellent in hole injection/transport ability, stability and durability of thin film. By selecting the triarylamine compound having a specific structure as the material for the hole transport layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL devices combining luminescent materials having a specific structure or the like exhibit good device characteristics. The triarylamine compound having a specific structure in the present invention is excellent in hole injection/transport ability, stability and durability of thin film. By selecting the triarylamine compound having a specific structure as the material for the hole transport layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL devices combining luminescent materials having a specific structure or the like exhibit good device characteristics.

公开(公告)号：US20220416165A1

公开(公告)日：2022-12-29

申请号：US17770392

申请日：2020-10-20

Applicant: Hodogaya Chemical Co., Ltd. ,  SFC Co., Ltd.

Inventor： Kazuyuki Suruga ,  Kouki Kase ,  Takeshi Yamamoto ,  Shuichi Hayashi ,  Soon-wook Cha ,  Sung-hoon Joo ,  Byung-sun Yang ,  Ji-hwan Kim

IPC: H01L51/00 ,  C07C211/54 ,  C09K11/06 ,  C07C211/58 ,  C07F5/02

Abstract: The present inventors have focused the fact that an arylamine material having a specific structure is excellent in hole injection/transport ability, thin film stability and durability. The arylamine compound of the above can be selected as a material for the hole transport layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL devices combining electron transport materials having a specific structure and the like were manufactured, and the characteristics of the devices were evaluated diligently.