• The present invention provides an organic EL device utilizing phosphorescence which can be driven at a low voltage, which realizes high luminance and high efficiency, and which has a long lifetime.

    发明提供可以电压下驱动实现亮度高效率具有 寿命的利用磷光有机EL元件

    youdao

  • The present invention provides an organic EL device utilizing phosphorescence which can be driven at a low voltage, which realizes high luminance and high efficiency, and which has a long lifetime.

    发明提供可以电压下驱动实现亮度高效率具有 寿命的利用磷光有机EL元件

    youdao

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