Patent ID: 7229686
Filing Date: 2007-06-12
Classification: G02B,Y10T

Abstract:
1. An antireflection film, which comprises a high refractive index layer formed of a first coating composition in the cured state wherein said first coating composition primarily comprises (A) metal oxide fine particles comprising at least one oxide selected from the group consisting of titanium oxide, aluminum oxide, zirconium oxide, cerium oxide, iron oxide, tin oxide, and compound oxides thereof, wherein said metal oxide has an average particle size of 1 to 500 nm, and (B) a compound having in a molecule at least one group of at least one type selected from the group consisting of an acrylic, methacrylic, vinyl and styryl group, and a low refractive index layer formed of a second coating composition in the cured state wherein said second coating composition primarily comprises (D) silica-base inorganic oxide fine particles having void in the interior and having an average particle size of 1 to 500 nm, and (C) a compound having at least two 3,4-epoxycyclohexyl groups in a molecule, wherein said high refractive index layer and said low refractive index layer are successively stacked.