PYRROMETHENE BORON COMPLEX, LIGHT EMITTING ELEMENT USING SAME, DISPLAY DEVICE, LIGHTING DEVICE, COLOR CONVERSION COMPOSITION, COLOR CONVERSION FILM, COLOR CONVERSION SUBSTRATE, LIGHT SOURCE UNIT AND DISPLAY
申请人:Toray Industries, Inc.
公开号:EP3845542A1
公开(公告)日:2021-07-07
A pyrromethene-boron complex that can be used as a red light fluorescent material with improved emission efficiency and color purity is provided. A pyrromethene-boron complex represented by the following general formula (1) and satisfying at least one of (A) and (B) is provided:
wherein, in the formula, X and R1 to R9 are selected from predetermined groups, at least one of four pairs of R1 and R2, R2 and R3, R4 and R5, and R5 and R6 has a ring structure represented by any one of the following general formulas (2A) to (2D):
wherein, in the formulas, R101, R102 and R201 to R204 have the same meaning as R1 to R7 in the general formula (1), Ar is a substituted or unsubstituted aromatic hydrocarbon ring, or a substituted or unsubstituted aromatic heterocycle, R101 and R102 may form a ring, and * indicates a connection with the pyrromethene skeleton.
本发明提供了一种可用作红光荧光材料的吡咯并硼络合物,其发射效率和颜色纯度均有所提高。本发明提供了一种由以下通式(1)表示并满足(A)和(B)中至少一项的吡咯并硼络合物:
其中,在式中,X 和 R1 至 R9 选自预定基团,R1 和 R2、R2 和 R3、R4 和 R5 以及 R5 和 R6 四对中的至少一对具有以下通式 (2A) 至 (2D) 中任一个所代表的环结构:
其中,在这些通式中,R101、R102 和 R201 至 R204 与通式(1)中的 R1 至 R7 意义相同,Ar 是取代或未取代的芳香烃环,或取代或未取代的芳香杂环,R101 和 R102 可形成一个环,* 表示与吡咯烷骨架的连接。