The present invention discloses a compound is represented by the following formula (I) or formula (II), the organic EL device employing the compound as phosphorescent host material, hole blocking material, hole blocking electron transport material, can display good performance.
The same definition as described in the present invention.
本发明公开了一种由以下
化学式(I)或
化学式(II)表示的化合物,有机EL器件采用该化合物作为
磷光主体材料、阻挡正孔材料、阻挡正孔电子传输材料,可以展示出良好的性能。本发明中描述的定义相同。