Patent ID: 7341784

Claim:
A light management film, comprising: a first layer comprising a thermoplastic resin selected from aromatic polycarbonates, polyetherimides, polyesters, polyphenylene ethers, polyphenylene ether/styrene polymer blends, polyamides, polyketones, acrylonitrile-butadiene-styrenes, and blends thereof, and a phosphonium sulfonate salt having the structure wherein each occurrence of X is independently halogen or hydrogen provided that at least one X is halogen; m, p, and q are integers from 0 to 12; n is 0 or 1 with the proviso that when n is 1, p and q are not both 0; R 1 -R 3 are each independently C 1 -C 12 hydrocarbyl; R 4 is C 1 -C 18 hydrocarbyl; and Y is selected from wherein R 5 is hydrogen or C 1 -C 12 hydrocarbyl; and a second layer disposed on a face of the first layer; wherein the second layer is the cured product of a curable composition; wherein the second layer has an index of refraction of at least 1.5; and wherein the curable composition comprises a difunctional (meth)acrylate having the structure wherein R 6 is hydrogen or methyl; X 1 is O, NH, or S; and R 8 has the structure wherein Q is —C(CH 3 ) 2 —, —CH 2 —, —O—, —S—, —C(O)—, —S(O)—, or —S(O) 2 —; R 9 is hydroxy-substituted C 1 -C 6 alkylene; each occurrence of t is independently 0, 1, 2, 3, or 4; and d is 1 to 3; an arylether (meth)acrylate having the structure wherein R 6 is hydrogen or methyl; X 1 is O, NH, or S; X 2 is O, NH, or S; R 10 is substituted or unsubstituted divalent C 1 -C 12 alkylene or alkenylene; Ar is substituted or unsubstituted C 6 -C 12 aryl, including phenyl; wherein the substitution on the R 10 and Ar may independently include fluorine, chlorine, bromine, iodine, C 1 -C 6 alkyl, C 1 -C 3 perhalogenated alkyl, hydroxy, C 1 -C 6 ketone, C 1 -C 6 ester, N,N-di(C 1 -C 3 )alkylamide, or a combination comprising at least one of the foregoing substituents; and a polymerization initiator.