Photostable cyano-substituted boron-dipyrromethene dye as green emitter for display and illumination applications

A color converter may include a polymeric matrix material and at least one organic fluorescent colorant of formula I.a, I.b, and/or I.cwherein R1, R2, R3, R5, R6, R7 are H, C1-C20-alkyl or C6-C14-aryl-C1-C10-alkylene; R4a, R4b are fluorine, chlorine, cyano or OR10, R8a, R8b are C1-C20-alkyl; R8c is...

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Hauptverfasser: Ivanovici, Sorin, Mangold, Hannah Stephanie, Koenemann, Martin, Halbauer, Maximilian Frank
Format: Patent
Sprache:eng
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Zusammenfassung:A color converter may include a polymeric matrix material and at least one organic fluorescent colorant of formula I.a, I.b, and/or I.cwherein R1, R2, R3, R5, R6, R7 are H, C1-C20-alkyl or C6-C14-aryl-C1-C10-alkylene; R4a, R4b are fluorine, chlorine, cyano or OR10, R8a, R8b are C1-C20-alkyl; R8c is C1-C20-alkyl, C6-C10-aryl or C6-C10-aryl-C1-C10-alkylene, wherein the aryl moieties being optionally substituted by k substituents R9; k is 1, 2, 3, 4, 5 or 6; R9 is C1-C10-alkyl, C1-C10-alkoxy, CN, halogen, phenyl or phenoxy; and R10 is C1-C10-alkyl or hydroxy-C1-C10-alkyl. Backlight units for liquid crystal displays; liquid crystal display devices, and a self-emissive display devices may include this color converter and such colorant.