公开(公告)号：US20210115282A1

公开(公告)日：2021-04-22

申请号：US17253000

申请日：2019-06-18

Applicant: BASF SE

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

IPC: C09D11/50 ,  C09D11/037 ,  C09D11/101 ,  C09D11/328 ,  C09D11/38 ,  C09B57/00 ,  C09B3/18 ,  G02F1/1368 ,  G02F1/1335 ,  F21V9/30 ,  H01L33/50 ,  H01L51/50 ,  H01L51/52

Abstract: 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.c wherein 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.