公开(公告)号：WO2019243286A1

公开(公告)日：2019-12-26

申请号：PCT/EP2019/065939

申请日：2019-06-18

申请人： BASF SE

发明人： MANGOLD, Hannah Stephanie ,  KOENEMANN, Martin ,  HALBAUER, Maximilian Frank ,  IVANOVICI, Sorin

IPC分类号： C09K11/02 ,  C07F5/02 ,  C09K11/06 ,  C09B57/00 ,  G02F1/13 ,  G02B5/23 ,  G02F1/1335

摘要： The present invention relates to a color converter comprising a polymeric matrix mate- rial and at least one organic fluorescent colorant selected from a compound of formulae l.a, l.b, l.c or mixtures thereof R 1 , R 2 , R 3 , R 5 , R 6 , R 7 are hydrogen, C 1 -C 20 -alkyl or C 6 -C 14 -aryl-C 1 -C 10 -alkylene, wherein the aryl moiety is unsubstituted or substituted by k substituents R 9 ; R 4a , R 4b are fluorine, chlorine, cyano or OR 10 , R 8a , R 8b are C 1 -C 20 -alkyl; R 8C is C 1 -C 20 -alkyl, C 6 -C 10 -aryl or C 6 -C 10 -aryl-C 1 -C 10 -alkylene, wherein the aryl moieties in two aforementioned radicals are unsubstituted or substituted by k substituents R 9 ; k, R 9 and R 10 are as defined in the claims and in the description. The invention also describes the use of color converters; a backlight unit for liquid crystal displays; a liquid crystal display device and a self-emissive display device comprising this color converter and an ink formulation comprising a compound of formulae l.a, l.b or l.c and the use thereof.