Abstract: An emulsion composition according to the present invention includes: a polymerizable compound comprising two or more (meth)acryloyl groups; a surfactant; and a dispersion medium including water as a principal component, in which an oil droplet diameter D90 corresponding to a diameter at cumulative 90% by volume in the oil droplet size distribution of oil droplets comprising the polymerizable compound and the surfactant, measured according to a laser diffraction and scattering measurement process is less than 1.8 ?m. A maximum oil droplet diameter Dmax of the oil droplets, measured according to the laser diffraction and scattering measurement process is preferably less than 4.0 ?m. A content of the polymerizable compound in the composition with respect to 100 parts by mass of a total of components other than the dispersion medium is preferably no less than 40 parts by mass. The oil droplets may further comprise an inorganic particle.

Abstract: An emulsion composition according to the present invention includes: a polymerizable compound comprising two or more (meth)acryloyl groups; a surfactant; and a dispersion medium including water as a principal component, in which an oil droplet diameter D90 corresponding to a diameter at cumulative 90% by volume in the oil droplet size distribution of oil droplets comprising the polymerizable compound and the surfactant, measured according to a laser diffraction and scattering measurement process is less than 1.8 ?m. A maximum oil droplet diameter Dmax of the oil droplets, measured according to the laser diffraction and scattering measurement process is preferably less than 4.0 ?m. A content of the polymerizable compound in the composition with respect to 100 parts by mass of a total of components other than the dispersion medium is preferably no less than 40 parts by mass. The oil droplets may further comprise an inorganic particle.

Abstract: An array substrate with an insulation film which can easily be formed and the dielectric properties of which can be controlled, a liquid crystal display element including the array substrate, and a radiation-sensitive resin composition for forming the insulation film are provided. The insulation film is formed on a substrate in which an active element is formed, and then a common electrode, an interlayer insulation film, and a comb-shaped pixel electrode are provided on the insulation film to produce the array substrate. To form the interlayer insulation film, the radiation-sensitive resin composition including [X] an alkali-soluble resin; [Y] oxide particles of at least one metal selected from the group consisting of aluminum, zirconium, titanium, zinc, indium, tin, antimony, and cerium; [Z] a polyfunctional acrylate; [V] a chain transfer agent; and [W] a radiation-sensitive polymerization initiator, is used. The liquid crystal display element includes the array substrate.