POLYESTER FILM COMPOSITE, LIGHT DIFFUSER PLATE, AND UTILIZATION THEREOF

摘要

A polyester film composite characterized by comprising a biaxially oriented polyester film having a thickness of 50 to 200 mu ñm and a readily bondable coating film formed on one or each side thereof, and by having a haze lower than 2% and a total light transmittance of 90% or higher; and a light diffuser plate which comprises the composite and a light-diffusing layer superposed on the readily bondable coating film(s). The light diffuser plate has excellent optical properties when used in a liquid-crystal display. The polyester film composite is useful as a substrate for the plate.