Patent ID: 9465142
Filing Date: 2016-10-11
CPC Classification: G02B,H01L

Claim Text:
1. A near-infrared absorptive composition comprising a copper complex and a solvent, wherein the near-infrared absorptive composition has a solids content of 35 to 70% by mass, the composition comprises the solvent in an amount of 30 to 65% by mass, the solvent has a boiling point of 90 to 200° C. at 1 atm, and the copper complex is a copper compound represented by general formula (1) below: wherein L represents a ligand coordinated to the copper and is a compound having at least one selected from sulfonic acids, phosphoric acid, phosphoric acid esters, phosphonic acids, phosphonic acid esters, phosphinic acid, phosphinic acid esters, carboxylic acids, carbonyl (esters, ketones), amines, amides, sulfonamides, urethane, urea, alcohols and thiols; X is absent, or represents a halogen atom, H Ph represents phenyl; and n represents an integer of 1 to 4.