公开(公告)号：US20230345817A1

公开(公告)日：2023-10-26

申请号：US18021251

申请日：2021-08-13

申请人： HODOGAYA CHEMICAL CO., LTD. ,  SFC CO., LTD.

发明人： Junichi IZUMIDA ,  Sang-Won KO ,  Bong-Hyang LEE ,  Jung-Ho RYU ,  Takeshi YAMAMOTO ,  Kazuyuki SURUGA ,  Soon-Wook CHA ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM

IPC分类号： H10K85/60 ,  C07C211/54 ,  C09K11/06 ,  C07F7/08 ,  H10K85/40 ,  C07F5/02

CPC分类号： H10K85/633 ,  C07C211/54 ,  C09K11/06 ,  C07F7/081 ,  H10K85/40 ,  C07F5/027 ,  H10K85/658 ,  H10K50/156

摘要： An object is to provide a material for an organic EL device having excellent hole injection and transport performance, electron blocking ability, stability in a thin film state, and durability, and further to provide an organic EL device having high efficiency, a low driving voltage, and a long lifetime by combining the material with various materials for an organic EL device having excellent hole and electron injection and transport performance, electron blocking ability, stability in a thin film state, and durability in such a manner that the characteristics of each of the materials can be effectively exhibited. An organic EL device was fabricated by focusing on the fact that a triarylamine compound having a specific structure has excellent hole injection and transport ability, thin film stability, and durability, and selecting a specific arylamine compound as a material for forming a second hole transport layer, and the invention was completed.

公开(公告)号：US20240032321A1

公开(公告)日：2024-01-25

申请号：US18034552

申请日：2021-10-29

申请人： HODOGAYA CHEMICAL CO., LTD. ,  SFC CO., LTD.

发明人： Kazuyuki SURUGA ,  Sang-Won KO ,  Bong-Hyang LEE ,  Jung-Ho RYU ,  Takeshi YAMAMOTO ,  Junichi IZUMIDA ,  Soon-Wook CHA ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM ,  Bong-Ki SHIN

IPC分类号： H10K50/12 ,  H10K50/15 ,  H10K85/40

CPC分类号： H10K50/12 ,  H10K50/15 ,  H10K85/40

摘要： The present invention relates to an organic electroluminescent element (organic EL element) including at least an anode, a first hole transport layer, a second hole transport layer, a blue light-emitting layer, an electron transport layer, and a cathode in this order, in which the second hole transport layer contains an arylamine compound represented by the following general formula (1).

公开(公告)号：US20230099897A1

公开(公告)日：2023-03-30

申请号：US17798144

申请日：2021-02-25

申请人： HODOGAYA CHEMICAL CO., LTD.

发明人： Kouki KASE ,  Sang-Won KO ,  Jung-Ho RYU ,  Bong-Hyang LEE ,  Junichi IZUMIDA

IPC分类号： H01L51/00 ,  C07D307/93

摘要： An object of the present invention is to provide a material for a highly efficient and highly durable organic EL device, and specifically, an organic compound with excellent properties including excellent hole-injecting/transporting performance, electron-blocking capability, and high stability in the form of a thin film. Another object of the present invention is to provide a highly efficient and highly durable organic EL device by using this compound. The present invention is directed to an arylamine compound having a fluorenyl skeleton-containing heterocycle structure, with excellent heat resistance and good hole-transporting capability. An organic EL device including this compound in its hole-transporting layer, electron-blocking layer, light-emitting layer, or hole-injecting layer exhibited good device characteristics.