Patent ID: 6206550
Filing Date: 2001-03-27
Classification: C09D,C09K,G02B

Abstract:
A backlight, comprising a lens sheet which comprises a transparent substrate and a lens section having a refractive index of 1.60 or greater, wherein the lens section is formed on the transparent substrate from an active energy ray-curable composition, wherein the active energy ray-curable composition comprises:(A) 20 to 80 parts by weight of a compound represented by the following general formula I: ##STR8##wherein R.sup.1 represents hydrogen or methyl, X and Y may be the same or different and represent methyl, chlorine, bromine or iodine, and t and u each independently represent an integer of 0-2,(B) 20 to 80 parts by weight of at least one compound having at least one acryloyl or methacryloyl group in the molecule, and(C) 0.01 to 5 parts by weight of an active energy ray-sensitive radical polymerization initiator with respect to 100 parts by weight of the total of said components (A) and (B).