TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Light Diffusion Agent: The average particle diameter of light-diffusion agent is 0.2-100 microns. The light-diffusion agent is chosen from silica, alumina, titania, zirconia, tin oxide, indium oxide, cadmium oxide, and/or antimony oxide.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Light Diffusion Agent: The average particle diameter of light-diffusion agent is 0.2-100 microns. The light-diffusion agent is chosen from silica, alumina, titania, zirconia, tin oxide, indium oxide, cadmium oxide, and/or antimony oxide.    TECHNOLOGY FOCUS - POLYMERS - Preferred Resin: The epoxy resin having terpene group structure, is represented by formula (1). The epoxy resin contained in the resin sheet further contains a cycloaliphatic epoxy resin. The content of epoxy resin having terpene group structure is 9-60 wt.% with respect to all epoxy resin.n = polymerization degree, preferably 0-5.Preferred Sheet: The light-diffusion agent is unevenly dispersed in any one surface of resin sheet. The maldistribution region of light-diffusion agent in the resin sheet is an area from one surface to 1/50-1/2 of the whole thickness of resin sheet. The ratio of light diffusion agent in the maldistribution region is 0.1-80 wt.%. The resin sheet has an epoxy-resin layer whose one surface is unevenly or uniformly dispersed with the light-diffusion agent. The surface of epoxy-resin layer with uneven dispersion of light-diffusion agent, is smooth. The resin sheet is a laminate of epoxy-resin layers. The light-diffusion agent is unevenly dispersed in the most external surface side of epoxy-resin layer. The volume ratio of light-diffusion agent in epoxy-resin layer differs from the volume ratio of light-diffusion agent in the other epoxy-resin layer. The content of light-diffusion agent with respect to the epoxy resin in the resin sheet is 0.1-60 wt.%. The resin sheet further contains a hard-coat layer and gas barrier layer.Preferred Properties: The difference in refractive index of the epoxy resin and light-diffusion agent, is 0.03-0.3. The resin sheet has glass transition temperature of 170degreesC or more, light transmittance of 88% or more and fracture strength of 45 N or more. EXAMPLE - Tetra-n-butyl phosphonium o,o-diethyl phosphoro dithioate (in wt.pts) (1), methyl hexahydrophthalic anhydride (48.5), 3,4-epoxy cyclohexyl methyl-3,4-epoxy cyclohexane carboxylate (26.6) and terpene novolak group epoxy resin (26.6) were stir-mixed, to form epoxy-resin composition. The obtained epoxy-resin composition (100) was mixed with alumina particle (0.8) having particle size of 5 microns, specific gravity of 3.9 and refractive index of 1.77, to obtain alumina-containing epoxy-resin liquid. 17 wt.% of urethane acrylate solution was prepared by suspending urethane acrylate to toluene. 5.5 wt.% of polyvinyl alcohol aqueous solution was prepared by suspending polyvinyl alcohol to water. The prepared urethane acrylate solution was applied on stainless endless-belt surface, dried and hardened to form a hard-coat layer of 2 microns thickness. Subsequently, polyvinyl alcohol aqueous solution was applied on hard-coat layer, and dried to form gas barrier layer of 3.7 microns thickness. Subsequently, alumina-containing epoxy resin liquid was applied on the gas barrier layer, and dried to form epoxy-resin layer of 400 microns thickness. The alumina in the epoxy-resin liquid was deposited immediately after coating, and was unevenly dispersed in the epoxy-resin layer. The obtained laminate containing hard-coat layer, gas barrier layer and epoxy-resin layer, was peeled from endless belt, and left on glass plate for 180degreesC and 0.5 hours under atmosphere containing oxygen and nitrogen. Subsequently, the laminate was cured to form a resin sheet. The obtained resin sheet had glass transition temperature of 213degreesC based on viscoelastic spectrum, light transmittance of 88%, fracture strength of 89 N and yellow degree index of 0.9 based on JIS K-7103. The liquid crystal display having favorable display quality was provided by using the resin sheet as liquid crystal cell substrate.