NEAR INFRARED RAY ABSORBER CONTAINING DITHIOL METAL COMPLEX, MANUFACTURING METHOD OF DITHIOL METAL COMPLEX, OPTICAL FILTER COMPRISING THEM AND SUN PROTECTION FILTER CONTAINING NEAR INFRARED RAY ABSORBER

摘要

PURPOSE: A near infrared ray containing a novel dithiol metal complex compound and an optical filter and thermal infrared ray shield filter are provided to absorb wavelength light and to produce an improved plasma display panel. CONSTITUTION: A dithiol metal complex compound with improved solubility is denote by chemical formula 1. In chemical formula 1, M is nickel, palladium, or platinum; R is hydrogen, alkyl group of C1-C6 or ether group of C1-C6; x is hydrogen or halogen; and m is 1-3. The dithiol metal complex compound is substituted. The dithiol metal complex compound is nickel.