申请人:Kwansei Gakuin Educational Foundation
公开号:US10689402B2
公开(公告)日:2020-06-23
The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by a light emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.
本发明的目的是提供一种多环芳烃化合物,该化合物对溶剂的溶解性、成膜性、湿涂层性、热稳定性和平面内取向性均得到改善。本发明的目的是通过一种光发射层形成组合物来实现的,该组合物包括:作为第一组分,从通式(A)表示的多环芳烃化合物和包括通式(A)表示的多种结构的多环芳烃低聚物化合物组成的组中选出的至少一种掺杂剂材料;作为第二组分,特定的低分子量主材料;以及作为第三组分,至少一种有机溶剂。在式(A)中,环 A、环 B 和环 C 各自独立地代表芳基环或杂芳基环,Y1 是 B,X1 和 X2 各自独立地代表 O 或 N-R,其中 X1 和 X2 中至少有一个是 N-R。