Patent ID: 6908647

Claim:
An anti-reflection film, comprising a low-refractive-index layer formed by hardening a composition, said composition containing a polysiloxane compound having a reactive organic functional group which contributes to a crosslinking reaction, represented by formula 1, and a perfluoroolefin copolymer represented by formula 2, wherein the mass ratio of the polysiloxane compound to the perfluoroolefin copolymer is from 0.05:100 to 20:100: wherein, in formula 1, R 1 , R 2 , R 3 and R 4 each represent a substituent having 1 to 20 carbon atoms; when there are a plurality of any of R 1 , R 2 , R 3 or R 4 , R 1 s, R 2 s, R 3 s or R 4 s each are the same or different from each other; at least one of R 1 , R 3 and R 4 represents the reactive organic functional group; x is an integer that is within the range of 1≦x≦4; y is an integer that is within the range of 10≦y≦500; z is an integer that is within the range of 0≦z≦500; and said polysiloxane compound may be a random copolymer or a block copolymer; wherein, in formula 2, Rf 1 represents a perfluoroalkyl group having 1 to 5 carbon atoms; Rf 2 represents a fluorine-containing alkyl group having 1 to 30 carbon atoms, said fluorine-containing alkyl group having a straight chain, branched chain, or alicyclic structure; A represents a component having at least one reactive organic functional group which contributes to a crosslinking reaction; B represents an optional component; a, b, c and d each represent a mole fraction (%) of each component, in which a, b, c and d satisfy the following conditions; 5≦a≦70, 5≦b≦90, 5≦c≦95, 0≦d≦90.