HIGH TRANSMISSIONAL YELLOW DYE FOR LCD AND SYNTHETIC METHOD THEREOF

摘要

The present invention relates to a highly transparent yellow dye for liquid crystal display (LCD), a dye dispersing agent containing the above dye, a colored composition containing the dye dispersing agent, color filter and coloring composition, with regard to the method for manufacturing the dye represented by chemical formula (I). Chemical formula (I) The R1 and R2 respectively stands for a group, selected among hydrogen, halogen, a substituted or non-substituted alkyl, a substituted or non-substituted aryl. [Reference numerals] (1) Introduce a bulky-alkyl group; (2) Introduce a solvent-friendly functional group; (AA,CC) Primary heat resistant improvement method; (BB,DD) Secondary light stability improvement method; (EE) Synthesis, purification completion(QP3); (FF) Synthesis, purification completion(QP4)