Patent ID: 8663786
Filing Date: 2014-03-04
Classification: B29C,B29K,C08J,Y10T

Abstract:
1. A coated polyester film for optical applications comprising a polyester film having refractive index of 1.6 to 1.7; a first coating layer directly formed on one side of the polyester film and having refractive index 1.5 to 1.55; and a second coating layer directly formed on the opposite side of the polyester film and having refractive index 1.4 to 1.48, wherein a difference in refractive index between each coating layer and the polyester film is 0.05 or more, a thickness of each coating layer is 0.03 to 0.1 μm, total light transmittance of the entire coated polyester film is 93% or more, and the first coating layer is formed of a polyurethane resin and the second coating layer is formed of an acrylic resin.