DYES FOR PDP FILTER ABSORBABLE NEON AND NEAR IR RADIATION AT THE SAME TIME

摘要

A dye for PDP filters capable of absorbing neon lights and near infrared rays at the same time is provided, wherein a nucleophile-fixed neon-cut dye and a near infrared absorbing dye having at least one halogen substituent are covalently bonded to each other. A dye for PDP filters capable of absorbing neon lights and near infrared rays at the same time is prepared by covalently bonding (1) a neon-cut dye represented by the following formula 1 and (2) at least one near infrared absorbing dye to each other via a S_N 2 reaction using a (CH2)n-NH2 group of the neon-cut dye as a nucleophile. The at least one near infrared absorbing dye is selected from the group consisting of dithiol metal complex-based derivatives represented by the following formula 2, diimmonium-based derivatives represented by the following formula 3, and phenylenediamine metal complex-based derivatives represented by the following formula 4, which have at least one halogen substituent.