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1. 发明公开

EP4095124A1 ARYLAMINE COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT 审中-实审
公开(公告)号：EP4095124A1
公开(公告)日：2022-11-30
申请号：EP21744716.8
申请日：2021-01-20
申请人： Hodogaya Chemical Co., Ltd.
发明人： KASE, Kouki , YAMAMOTO, Takeshi , LIM, Jae-Geon , IZUMIDA, Junichi , HAYASHI, Shuichi , YOKOYAMA, Norimasa
IPC分类号： C07C211/54 , H01L51/50
摘要： An objective of the invention is to provide, as a material for highly efficient, highly durable organic EL devices, an organic EL device material having excellent hole injectability and transportability, electron blockability, high stability in a thin-film state, and excellent durability, and also to provide a highly efficient, highly durable organic EL device by using this compound. The present invention concerns an arylamine compound represented by general formula (1). (In the formula, Ar 1 , Ar 2 , Ar 3 , and Ar 4 each represent a substituted or unsubstituted aromatic hydrocarbon group, etc.; L 1 and L 2 each represent a divalent substituted or unsubstituted aromatic hydrocarbon group, etc.; R 1 to R 7 each represent a hydrogen atom, a deuterium atom, etc.; and m and n may be the same or different from one another, and each represent an integer from 0 to 2, wherein Li represents a single bond when m is 0, and L 2 represents a single bond when n is 0.)

2. 发明公开

EP4438590A1 ARYLAMINE COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4438590A1
公开(公告)日：2024-10-02
申请号：EP22898626.1
申请日：2022-11-24
申请人： Hodogaya Chemical Co., Ltd.
发明人： KASE, Kouki , LIM, Jae-Geon , SHIN, Heung-Seob , CHA, Hyun-Wook , IZUMIDA, Junichi , HAYASHI, Shuichi
IPC分类号： C07C211/54 , C07D333/76 , C07D405/12 , C09K11/06 , C07F7/10 , C07D307/91 , H10K50/00 , H10K50/15
CPC分类号： C07C211/54 , C07D307/91 , C07D333/76 , C07D405/12 , C07F7/10 , C09K11/06 , H10K50/00 , H10K50/15
摘要： [Object]
An object of the present invention is to provide an organic compound having excellent characteristics such as excellent hole injection and transport abilities, electron blocking ability, and high thin-film stability as material for an organic electroluminescence device having high efficiency and high durability, and also to provide an organic electroluminescence device using the compound and having high efficiency and high durability.
[Means of Realizing the Object]
An arylamine compound of the following general formula (1) or (2).

3. 发明公开

EP3981764A1 COMPOUND HAVING BENZOTRIAZOLE RING STRUCTURE AND ORGANIC ELECTROLUMINESCENCE ELEMENT 审中-公开
公开(公告)号：EP3981764A1
公开(公告)日：2022-04-13
申请号：EP20818227.9
申请日：2020-06-02
申请人： Hodogaya Chemical Co., Ltd.
发明人： KASE, Kouki , LIM, Jae-Geon , KIM, Ji-Yung , HIRAYAMA, Yuta , SURUGA, Kazuyuki
IPC分类号： C07D249/20 , C07D401/10 , C09K11/06 , H01L51/50
摘要： An objective of the invention is to provide, as a material for highly efficient, highly durable organic EL devices, an organic compound having excellent properties, such as excellent electron injection capability and transportability, hole blocking capability, and high stability in a thin-film state, and also to provide a highly efficient, highly durable organic EL device by using this compound. The present invention has been achieved by focusing on the fact that a benzotriazole ring structure, which has electron affinity, contains nitrogen atoms having the ability to coordinate with a metal and also has excellent heat resistance, and by thus designing and chemically synthesizing various compounds having a benzotriazole ring structure and assessing the properties of various organic EL devices using those compounds, thereby finding out that organic EL devices having excellent properties can be achieved by using specifically-structured compounds having a benzotriazole ring structure.

4. 发明公开

EP3890042A1 ORGANIC ELECTROLUMINESCENCE ELEMENT 无效
公开(公告)号：EP3890042A1
公开(公告)日：2021-10-06
申请号：EP19888717.6
申请日：2019-11-26
申请人： Hodogaya Chemical Co., Ltd.
发明人： SURUGA, Kazuyuki , YAMAMOTO, Takeshi , MOCHIZUKI, Shunji , KASE, Kouki , LIM, Jae-Geon
IPC分类号： H01L51/50
摘要： An object of the present invention is to provide, as a material for a highly efficient and highly durable organic EL element, an organic compound having excellent hole-injecting/transporting capability, electron-blocking capability, stability in the form of a thin film, and durability. Furthermore, 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 organic compound with various materials for organic EL elements so as to effectively exhibit the properties of the individual materials, the materials having excellent hole/electron-injecting/transporting capability, electron-blocking capability, stability in the form of a thin film, and durability. The arylamine compound having a specific structure according to the present invention has excellent hole-injecting/transporting capability, stability in the form of a film, and durability. When this arylamine compound having a specific structure is selected as the material of a hole-transporting layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL elements including combination of the arylamine compound with an electron-transporting material having a specific structure or other materials had good element characteristics.

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