Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, Display Device, and Lighting Device

    公开(公告)号:US20210347782A1

    公开(公告)日:2021-11-11

    申请号:US16090477

    申请日:2018-02-28

    Abstract: A novel organic compound is provided. Alternatively, an organic compound that exhibits light emission with favorable chromaticity is provided. Alternatively, an organic compound that exhibits blue light emission with favorable chromaticity is provided. Alternatively, an organic compound with favorable emission efficiency is provided. Alternatively, an organic compound having a high carrier-transport property is provided. Alternatively, an organic compound with favorable reliability is provided.
    An organic compound including at least one amino group in which any one of a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, and a substituted or unsubstituted carbazolyl group is bonded to any one of a substituted or unsubstituted naphthobisbenzofuran skeleton, a substituted or unsubstituted naphthobisbenzothiophene skeleton, and a substituted or unsubstituted naphthobenzofuranobenzothiophene skeleton is provided.

    Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Lighting System
    9.
    发明申请
    Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Lighting System 审中-公开
    发光元件,发光装置,电子装置,照明装置和照明系统

    公开(公告)号:US20170025621A1

    公开(公告)日:2017-01-26

    申请号:US15215117

    申请日:2016-07-20

    Abstract: A light-emitting element that contains a fluorescent compound, which has high efficiency is provided. A light-emitting element in which the proportion of delayed fluorescence to the total light emitted from the light-emitting element is higher than that in a conventional light-emitting element is provided. Emission efficiency of the light-emitting element containing a fluorescent compound can be improved by increasing the probability of TTA caused by an organic compound in an EL layer, converting energy of triplet excitons, which does not contribute to light emission, into energy of singlet excitons, and making the fluorescent compound emit light by energy transfer of the singlet excitons.

    Abstract translation: 提供含有高效率的荧光化合物的发光元件。 提供了一种发光元件,其中延迟荧光与从发光元件发射的总光的比例高于常规发光元件。 含有荧光化合物的发光元件的发射效率可以通过增加由EL层中的有机化合物引起的TTA的可能性,将不对发光有贡献的三线态激子的能量转换成单重态激子的能量来提高 ,并且通过单重激子的能量转移使荧光化合物发光。

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