TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Particles: The particles are chosen from titanium oxide, aluminum oxide, zinc oxide, zirconium oxide and/or silicon nitride particles. The average primary particle diameter of the particles is 5-150 nm. The surface of particles is coated with metal hydroxide and/or metal oxide.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The resin monomer is a thermosetting monomer or an ionizing radiation hardenable monomer. Preferred Composition: The particle-containing composition further includes 50 weight% or less of dispersing agent with respect to the particles.    TECHNOLOGY FOCUS - POLYMERS - Preferred Film: The particle-containing composition is hardened to form a particle-containing resin film. The content of particles in the film is 60 weight% or more. The film is laminated on a base material having haze of 20% or less and linear thermal expansion coefficient of 20x 10-5/K or less. The film laminated surface of base material is a non-planar surface. Preferred Properties: The film has refractive index of 1.75 or more, surface roughness of 50 nm or less and thickness of 30 mu m or less. The refractive index of resin and particles are 1.55 or more and 1.65 or more, respectively. EXAMPLE - ST-01 (RTM: anatase type titanium oxide particles) having refractive index of 2.4 and average primary particle diameter of 7 nm and polyethylene imine type block copolymer were mixed with polypropylene glycol monomethyl ether acetate (PGMEA), such that total concentration of particles and copolymer was 36 weight%. The resulting mixture was dispersed using zirconia bead, to obtain dispersion liquid of titanium oxide. 4,4'-Bis( beta -methacryloyloxy ethylthio)diphenylsulfone (monomer) and 2,4,6-trimethyl-diphenyl-phosphine oxide (initiator) were added to PGMEA, and monomer solution was obtained. The content of initiator was 1 weight% with respect to monomer. The dispersion liquid of titanium oxide was mixed with monomer solution, and subjected to ultrasonication for 10 minutes, to obtain particle-containing composition. The content of particles with respect to solid content other than particles in the composition was 58 weight%. Te obtained composition was applied on a glass substrate having haze of 0.44% and linear thermal expansion coefficient of 0.9x 10-5/K, and cured to obtain a laminate having particle-containing resin film. The resin film had thickness of 1.68 mu m, surface roughness of 0.0036 mu m, parallel-ray light transmittance of 93.2%, Z value of 0.015 and refractive index of 1.83.