An OLED display panel is provided. The OLED display panel comprises a first electrode; an opposite second electrode; and a plurality of stacking layers sandwiched between the first electrode and the second electrode. The plurality of stacking layers at least comprises a first auxiliary light-emitting layer and a light-emitting layer sequentially disposed on the first electrode. The first auxiliary light-emitting layer comprises a host material and a dopant material, and the dopant material comprises a compound of the following chemical formula (I):
where n is an integer equal to or larger than 1, X1, X2 and Xn+2 each independently has a chemical structure of
R′ is selected from any one of a substituted aryl group and a substituted heteroaryl group, and a substituent in the substituted aryl group and a substituent in the substituted heteroaryl group each includes at least one electron acceptor group.
提供了一种有机发光二极管显示面板。OLED 显示面板包括一个第一电极;一个相对的第二电极;以及夹在第一电极和第二电极之间的多个堆叠层。多个堆叠层至少包括依次设置在第一电极上的第一辅助发光层和发光层。第一辅助发光层包括主材料和掺杂材料,掺杂材料包括以下
化学式(I)的化合物:
其中 n 是等于或大于 1 的整数,X1、X2 和 Xn+2 各自独立地具有以下
化学结构
R′ 选自取代的芳基和取代的杂芳基中的任意一个,取代的芳基中的取代基和取代的杂芳基中的取代基各自包括至少一个电子受体基团。