申请人:LG Display Co., Ltd.
公开号:US20150162537A1
公开(公告)日:2015-06-11
Discussed is an organic electroluminescent device including a first charge carrying layer being disposed adjacent to a first electrode; and a second charge carrying layer disposed adjacent to a second electrode, wherein the first charge carrying layer includes an emitting part, a hole injection part and a hole transporting part between the hole injection part and the emitting part, wherein at least one of the hole injection part, the hole transporting part and the emitting part includes a host material having an organic compound of Formula:
wherein R is substituted or non-substituted C1 to C12 alkyl, and A and B are symmetrically or asymmetrically positioned in 2-position or 7-position of the fluorene core, and wherein each of A and B is independently selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.
讨论的是一种有机电致发光装置,包括第一电极旁边放置的第一载荷层;以及放置在第二电极旁边的第二载荷层,其中第一载荷层包括一个发光部分,一个空穴注入部分和一个空穴传输部分,该空穴传输部分位于空穴注入部分和发光部分之间,在空穴注入部分、空穴传输部分和发光部分中的至少一个包含有机化合物的主体材料,该有机化合物的化学式为:其中R是取代或未取代的C1到C12烷基,A和B在芴核心的2-位置或7-位置对称或不对称地定位,并且A和B各自独立地选择取代或未取代的芳香基或取代或未取代的杂环基。