NEAR-INFRARED ABSORBING TRANSPARENT ADHESIVE SHEET

摘要

PROBLEM TO BE SOLVED: To obtain a near-infrared absorbing transparent adhesive sheet for a display panel having an excellent near-infrared absorption performance. SOLUTION: The near-infrared absorbing transparent adhesive sheet is obtained by subjecting a near-infrared absorbing adhesive composition comprising an adhesive composition containing a base polymer composed of a (meth)acrylate-based copolymer as a main component, an acrylic crosslinkable monomer and a crosslinking initiator and a near-infrared absorbent to ultraviolet irradiation crosslinking. The near-infrared absorbing transparent adhesive sheet contains a copper ionic compound and a phosphate group-containing compound as the near-infrared absorbent. Since the copper ionic compound and the phosphate group-containing compound are robust against an ultraviolet light, performance is not deteriorated by ultraviolet crosslinking and lights in other wavelength range are excellently transmitted. COPYRIGHT: (C)2008,JPO&INPIT