申请人:Hodogaya Chemical Co., Ltd.
公开号:EP3176845A1
公开(公告)日:2017-06-07
According to the present invention, there is provided an organic electroluminescent device which has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode arranged in order of description. The device is characterized in that: the hole transport layer includes a specific arylamine compound, and that the luminous layer includes a specific indenoindole derivative or a specific carbazole derivative. The organic EL device of the present invention has improved efficiency of hole transport from the hole transport layer to the luminous layer and also improved efficiency of electron transport from the electron transport layer to the luminous layer, in comparison to conventional organic EL devices.
根据本发明,提供了一种有机电致发光器件,该器件具有按描述顺序排列的阳极、空穴传输层、发光层、电子传输层和阴极。该装置的特征在于:空穴传输层包括特定的芳胺化合物,发光层包括特定的茚并吲哚衍生物或特定的咔唑衍生物。与传统的有机电致发光器件相比,本发明的有机电致发光器件提高了从空穴传输层到发光层的空穴传输效率,也提高了从电子传输层到发光层的电子传输效率。