Pyromethene boron complex, light emitting device using the same, display device, lighting device, color conversion composition, color conversion film, color conversion substrate, light source unit and display

摘要

It provides a pyromethene boron complex that can be used as a red light-emitting material with improved luminous efficiency and color purity. A pyromethylene boron complex represented by the following general formula (1) and satisfying at least one of (A) and (B). In the formula, X and R ¹ to R ⁹ are selected from a predetermined group, and at least one of the 4 ^{groups of R 1} and R ² , R ² and R ³ , R ⁴ and R ⁵ and R ⁵ and R ^{6 is the following general} It is a ring structure of any of formulas (2A) to (2D). In the formula, R ¹⁰¹ , R ¹⁰² and R ²⁰¹ to R ²⁰⁴ have the same meaning ^{as R 1} to R ⁷ in General Formula (1). Ar is a substituted or unsubstituted aromatic hydrocarbon ring, or a substituted or unsubstituted aromatic heterocycle. Moreover, R ¹⁰¹ and R ¹⁰² may form a ring. * Represents the connection part with the pyromethene skeleton.