Light diffusing layer, light diffusing film, and light diffusing adhesive sheet

[0036] Light diffusing adhesive sheets of Examples 1 to 7 were prepared by methods described below. 0.2 parts by weight of isocyanate based cross-linking agent (Trade name: D-90, produced by Soken Chemical & Engineering) was added to 100 parts by weight of acrylic based adhesive having refractive index of 1.47, specific gravity of 0.81 g / cm.sup.3 (Trade name: SK-DYNE H-SF, total solid 30%, diluted with ethyl acetate, produced by Soken Chemical & Engineering) to prepare a base coating. Each spherical filler shown in Examples 1 to 7 of Table 1 was added to the base coating, the spherical fillers were dispersed by agitating by an ajiter for 30 minutes, to prepare 7 kinds of coatings for a light diffusing layer. Each coating was coated to polyethylene terephthalate release films having a thickness of 38 .mu.m (Trade name: 38PF, produced by LINTEC) by a comma coater, to form predetermined thicknesses after drying. After the films were dried and the light diffusing layers were formed on ea