COMPOSITION FOR FORMING LOW-REFRACTIVE-INDEX FILM, METHOD OF FORMING LOW-REFRACTIVE-INDEX FILM, AND LOW-REFRACTIVE-INDEX FILM AND ANTIREFLECTIVE FILM BOTH FORMED BY THE FORMATION METHOD

摘要

Provided is a composition for forming a low-refractive-index film, which exhibits an excellent antireflective function even when applied in a single layer and does not affect the environment, and which is characterized by comprising (A) an inorganic polysilazane and (B) at least one organic polymer selected from a silazane-containing organic polymer, a siloxazane-containing organic polymer and a ureasilazane-containing organic polymer, wherein the ratio (A):(B) is 40:60-17:83 by weight.