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.
本发明提供了可以在低电压下驱动、实现高亮度和高效率并具有长 寿命的利用磷光的有机EL元件。
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.
本发明提供了可以在低电压下驱动、实现高亮度和高效率并具有长 寿命的利用磷光的有机EL元件。
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