The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2024
Filed:
Jun. 18, 2019
Basf SE, Ludwigshafen am Rhein, DE;
Hannah Stephanie Mangold, Ludwigshafen, DE;
Martin Koenemann, Ludwigshafen, DE;
Maximilian Frank Halbauer, Brandis, DE;
Sorin Ivanovici, Ludwigshafen, DE;
BASF SE, , DE;
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 R, R, R, R, R, Rare H, C-C-alkyl or C-C-aryl-C-C-alkylene; R, Rare fluorine, chlorine, cyano or OR, R, Rare C-C-alkyl; Ris C-C-alkyl, C-C-aryl or C-C-aryl-C-C-alkylene, wherein the aryl moieties being optionally substituted by k substituents R; k is 1, 2, 3, 4, 5 or 6; Ris C-C-alkyl, C-C-alkoxy, CN, halogen, phenyl or phenoxy; and Ris C-C-alkyl or hydroxy-C-C-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.