公开(公告)号：US20230180598A1

公开(公告)日：2023-06-08

申请号：US17925619

申请日：2021-06-16

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

Inventor： Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Kouki KASE ,  Kazuyuki SURUGA ,  Shuichi HAYASHI ,  Soon-Wook CHA ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM

IPC: H10K85/60 ,  C09K11/06

CPC classification number: H10K85/633 ,  H10K85/658 ,  C09K11/06 ,  H10K50/156

Abstract: An objective of the present invention is to provide a material for organic EL devices offering excellent hole injectability and transportability, electron blockability, stability in a thin-film state, and durability, and also to provide an organic EL device having high efficiency, low driving voltage and long lifetime by employing, in combination, the aforementioned material and various materials for organic EL devices offering excellent hole/electron injectability and transportability, electron blockability, stability in a thin-film state, and durability, in a manner that the properties of each of the materials can be brought out effectively. The present invention relates to an organic EL device containing a specific arylamine compound as a material constituting a second hole transport layer, wherein the difference between the HOMO level of the second hole transport layer and the HOMO level of a first hole transport layer is 0.15 eV or less.

公开(公告)号：US20250024698A1

公开(公告)日：2025-01-16

申请号：US18574791

申请日：2022-08-01

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

Inventor： Junichi IZUMIDA ,  Sang-Won KO ,  Bong-Hyang LEE ,  Jung-Ho RYU ,  Jin-ho LEE ,  Kouki KASE ,  Shuichi HAYASHI ,  Se-Jin LEE ,  Tae-Jung YU ,  Young-Tae CHOI ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM ,  Bong-Ki SHIN

IPC: H10K50/15 ,  H10K50/12 ,  H10K85/60

Abstract: An object of the present invention is to provide a material for organic EL elements, the material being excellent in hole injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability. Another object of the present invention is to provide an organic EL element having high efficiency, a low driving voltage, and a long lifespan, by combining the aforementioned material with various materials for organic EL elements, the materials being excellent in hole/electron injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability, such that the properties of the individual materials can be effectively exhibited. Focusing on the finding that a triarylamine compound having a specific structure is excellent in hole injecting/transporting capability, stability in the form of a thin film, and durability, a specific arylamine compound was selected and used as a material for a hole-transporting layer to produce an organic EL element, and thus, the present invention has been accomplished.

公开(公告)号：US20240032321A1

公开(公告)日：2024-01-25

申请号：US18034552

申请日：2021-10-29

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

Inventor： 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: H10K50/12 ,  H10K50/15 ,  H10K85/40

CPC classification number: H10K50/12 ,  H10K50/15 ,  H10K85/40

Abstract: 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：US20230247850A1

公开(公告)日：2023-08-03

申请号：US18015893

申请日：2021-08-02

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

Inventor： Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Kouki KASE ,  Shuichi HAYASHI ,  Soon-Wook CHA ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM

IPC: H10K50/15 ,  H10K85/60

CPC classification number: H10K50/15 ,  H10K85/631 ,  H10K85/6574 ,  H10K85/636 ,  H10K85/615 ,  H10K85/626 ,  H10K85/633 ,  H10K85/654 ,  H10K85/655 ,  H10K85/657 ,  H10K85/622

Abstract: An objective of the present invention is to provide an organic EL device having high efficiency, low driving voltage and long lifetime by using a material for organic EL devices offering excellent hole injectability and transportability, electron blockability, stability in a thin-film state, and durability, and also by employing, in combination, the aforementioned material and various other materials for organic EL devices offering excellent hole/electron injectability and transportability, electron blockability, stability in a thin-film state, and durability, in a manner that the properties of each material can be brought out effectively. The present invention relates to an organic electroluminescence device having, between an anode and a cathode, at least a hole transport layer, a light-emitting layer, and an electron transport layer in this order from the anode side, wherein the hole transport layer contains a triarylamine compound having a specific structure.

公开(公告)号：US20230137213A1

公开(公告)日：2023-05-04

申请号：US17789697

申请日：2021-03-11

Applicant: SFC CO., LTD.

Inventor： Sung Hoon JOO ,  Bong-Ki SHIN ,  Byung-Sun YANG ,  Ji-Hwan KIM ,  Hyeon Jun JO ,  Sungeun CHOI

IPC: H10K85/60 ,  C07D471/04

Abstract: The present invention relates to a novel phenanthroline-based compound and an organic light-emitting device having high efficiency characteristics comprising same. More particularly, the present invention relates to a phenanthroline-based compound exhibiting high efficiency by including a phenanthroline-based compound having a specific structure as a material for a charge generation layer in an organic light-emitting device, and to an organic light-emitting device comprising same, wherein [Chemical Formula A] is the same as described in the detailed description of the invention.

公开(公告)号：US20220119360A1

公开(公告)日：2022-04-21

申请号：US17427772

申请日：2020-02-21

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

Inventor： Shunji MOCHIZUKI ,  Takuya UEHARA ,  Kouki KASE ,  Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Shuichi HAYASHI ,  Young-Tae CHOI ,  Se-Jin LEE ,  Seok-Bae PARK ,  Tae-Jung YU ,  Byung-Sun YANG

IPC: C07D263/62 ,  H01L51/00 ,  C07D277/66 ,  C09K11/06 ,  H01L51/52

Abstract: An objective of the invention is to provide an organic EL device that combines various materials of the device and a capping layer composed from a material that absorbs sunlight within the wavelength range of 400 nm to 410 nm to prevent impact on materials inside the organic EL device, has a high light absorption coefficient and a high refractive index to significantly improve light extraction efficiency, has excellent stability, durability and light resistance in a thin film, and has no absorption within the wavelength ranges of blue, green and red, to thereby effectively achieve the characteristics of the various materials of the device. The invention is an arylamine compound having a benzazole structure, and is also an organic EL device including a capping layer containing the arylamine compound and a light-emitting layer containing a host and a phosphorescent dopant.

公开(公告)号：US20240279196A1

公开(公告)日：2024-08-22

申请号：US18623474

申请日：2024-04-01

Applicant: SFC CO., LTD.

Inventor： Yeong-Tae CHOI ,  Se-Jin LEE ,  Seok-Bae PARK ,  Taejung YU ,  Byung-Sun YANG ,  Dajung LEE

IPC: C07D307/91 ,  C07D405/12 ,  C07D409/12 ,  C07D487/04 ,  C09K11/06 ,  H10K50/15 ,  H10K85/60

CPC classification number: C07D307/91 ,  C07D405/12 ,  C07D409/12 ,  C07D487/04 ,  C09K11/06 ,  H10K50/15 ,  H10K85/615 ,  H10K85/633 ,  H10K85/636 ,  H10K85/657 ,  H10K85/6574

Abstract: Disclosed is an organic compound represented by any one of Chemical Formulas A to E and an organic light-emitting diode including the same. Chemical Formulas A to E are as described in the specification.

公开(公告)号：US20230345817A1

公开(公告)日：2023-10-26

申请号：US18021251

申请日：2021-08-13

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

Inventor： 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: H10K85/60 ,  C07C211/54 ,  C09K11/06 ,  C07F7/08 ,  H10K85/40 ,  C07F5/02

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

Abstract: 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：US20230101400A1

公开(公告)日：2023-03-30

申请号：US17792001

申请日：2021-01-21

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

Inventor： Junichi IZUMIDA ,  Takeshi YAMAMOTO ,  Kouki KASE ,  Kazuyuki SURUGA ,  Shuichi HAYASHI ,  Soon-Wook CHA ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM

IPC: H01L51/00 ,  H01L51/50

Abstract: An organic electroluminescent element including an anode and a cathode and including, between the anode and the cathode, at least a first hole transport layer, a second hole transport layer, a blue-light-emitting layer, and an electron transport layer disposed in this order from the anode side, in which at least one of the layers disposed between the first hole transport layer and the electron transport layer includes an arylamine compound represented by general formula (1).

公开(公告)号：US20180093962A1

公开(公告)日：2018-04-05

申请号：US15706954

申请日：2017-09-18

Applicant: SFC CO., LTD.

Inventor： Yeong-Tae CHOI ,  Se-Jin LEE ,  Seok-Bae PARK ,  Taejung YU ,  Byung-Sun YANG ,  Dajung LEE

IPC: C07D307/91 ,  H01L51/50 ,  H01L51/00

CPC classification number: C07D307/91 ,  C07D405/12 ,  C07D409/12 ,  C07D487/04 ,  C09K11/06 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0073 ,  H01L51/5056

Abstract: Disclosed are an organic compound represented by any one of Chemical Formulas A to E and an organic light-emitting diode including the same. Chemical Formulas A to E are as described in the specification.