The present invention provides a light emitting element having a low driving voltage and high luminous efficiency. The light emitting element comprises a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than the LUMO level of the second organic compound, and the difference between the LUMO levels is greater than 0 eV and less than 0.5 eV. Also, the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The guest material has a function of converting triplet excited energy into light emission. An exciplex is formed by a combination of the first organic compound and the second organic compound.

    본 발명은 구동 전압이 낮고 발광 효율이 높은 발광 소자를 제공한다. 제 1 유기 화합물과, 제 2 유기 화합물과, 게스트 재료를 가지는 발광 소자이다. 제 1 유기 화합물의 LUMO 준위는 제 2 유기 화합물의 LUMO 준위보다 낮고, 그 차이는 0eV보다 크고 0.5eV보다 작다. 또한 제 1 유기 화합물의 HOMO 준위는 제 2 유기 화합물의 HOMO 준위보다 낮다. 게스트 재료는 삼중항 들뜬 에너지를 발광으로 변환할 수 있는 기능을 가진다. 제 1 유기 화합물과, 제 2 유기 화합물이 들뜬 복합체를 형성하는 조합이다.


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    Titel :

    LIGHT-EMITTING ELEMENT DISPLAY DEVICE ELECTRONIC DEVICE AND LIGHTING DEVICE


    Weitere Titelangaben:

    발광 소자, 표시 장치, 전자 기기, 및 조명 장치


    Beteiligte:
    SEO SATOSHI (Autor:in) / TAKAHASHI TATSUYOSHI (Autor:in) / TAKEDA KYOKO (Autor:in) / ABE KANTA (Autor:in) / SUZUKI HIROKI (Autor:in)

    Erscheinungsdatum :

    29.09.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    H10K



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