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    Phosphorescent host material
    42.
    发明授权
    Phosphorescent host material 有权

    公开(公告)号：US11456424B2

    公开(公告)日：2022-09-27

    申请号：US16622489

    申请日：2018-06-13

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Tomoka Hara ,  Hideko Yoshizumi ,  Hiromitsu Kido ,  Satoshi Seo

    IPC: H01L51/00 ,  C07D491/048 ,  H01L51/50

    Abstract: A novel compound is provided. A light-emitting element with high emission efficiency and a long lifetime is provided. The compound is an organic compound that includes a benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton (General Formula (G0)). The 2-position of the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton has a substituent and the 6- to 9-positions of the skeleton have at least one substituent. Any one of the substituents bonded to the 6- to 9-positions is bonded to the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton via a phenylene group. A light-emitting element including the compound is provided.

    Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
    43.
    发明授权
    Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device 有权

    公开(公告)号：US10741769B2

    公开(公告)日：2020-08-11

    申请号：US15730065

    申请日：2017-10-11

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Hiroki Suzuki ,  Satoshi Seo ,  Tatsuyoshi Takahashi ,  Hiromitsu Kido

    IPC: H01L51/50 ,  H01L51/00 ,  C07D405/10 ,  C07D409/10 ,  H01L51/52 ,  H01L27/32

    Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. An organic compound has a benzonaphthofuran skeleton and a triazine skeleton and is represented by General Formula (G1) below. (In the formula, Ar1, Ar2, and Ar3 separately represent a substituted or unsubstituted phenylene group, and each of m and n is independently 0 or 1. R1 and R2 separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted methylfluorenyl group, a substituted or unsubstituted dimethylfluorenyl group, a substituted or unsubstituted spirofluorenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthrenyl group. B1 to B3 separately represent nitrogen or carbon, and at least one of B1 to B3 represents nitrogen. In addition, A is represented by General Formula (G1-1). Any one of R3 to R12 is bonded to Ar1, and the others separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted methylfluorenyl group, a substituted or unsubstituted dimethylfluorenyl group, a substituted or unsubstituted spirofluorenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthrenyl group. Furthermore, Q represents S or O.)

    Organometallic complex, light-emitting element, light-emitting device, electronic device, and lighting device
    45.
    发明授权
    Organometallic complex, light-emitting element, light-emitting device, electronic device, and lighting device 有权

    公开(公告)号：US10283722B2

    公开(公告)日：2019-05-07

    申请号：US15963361

    申请日：2018-04-26

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Tomoya Yamaguchi ,  Hideko Inoue ,  Hiromitsu Kido ,  Satoshi Seo ,  Tatsuyoshi Takahashi

    IPC: H01L51/00 ,  H01L51/50 ,  C07F15/00 ,  C09K11/06

    Abstract: A novel organometallic complex having high heat resistance is provided. The organometallic complex, which includes a structure represented by General Formula (G1), includes iridium and a ligand. The ligand has a pyrazine skeleton. Iridium is bonded to nitrogen at the 1-position of the pyrazine skeleton. A phenyl group that has an alkyl group as a substituent is bonded at each of the 2- and 3-positions of the pyrazine skeleton, and a phenyl group that has a cyano group as a substituent is bonded at the 5-position of the pyrazine skeleton. The ortho position of the phenyl group bonded at the 2-position of the pyrazine skeleton is bonded to iridium. In the formula, each of A1 to A4 independently represents a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms. Each of R1 to R6 independently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. Each of R7 to R11 independently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms, and a cyano group. At least one of R7 to R11 represents a cyano group.

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