Monodispersed spherelike nanoparticles (MNP) of Sb2O5 with sizes of 7-11 nm are used as filler for the nematic liquid crystal (LC) E7. The insertion of Sb2O5 particles in the LC leads to a drastic increase of light scattering, which can be controlled by on external electric field. The electrooptic propel-ties of both undoped and polymer stabilized "E7-Sb2O5" composites are studied. While the "Sb2O5,-E7" suspensions suffer from phase separation, the corresponding polymer stabilized samples are stable and operable. On the other hand, compared with "E7-Polymer" compounds, the "E7-Sb2O5-Polymer" composites possess substantially improved electro-optic performance, for instance, enhanced contrast and faster operation times. Owing to this, "LC-MNP-Polymer" composites are suggested as advanced materials for LC devices operating in light scattering made. The morphology and light scattering mechanisms of "LC-MNP-Polymer" samples are discussed.