Light valve device, light control particles, and preparation method therefor

Abstract

The present invention provides a light valve device. Compared with the existing technology, the main bodies of the solid light control particles adopted by the light valve device provided by the present invention are inorganic-organic complexes, being non-blue solid particles. When no electrical field is applied (off-state), solid light control particles within a droplet of a suspension medium exhibit random dispersion due to Brownian motion; at this time, a light beam entering a light valve is absorbed and/or scattered, the light valve has poor light transmittance and is relatively dark, and the dark state is a non-blue tone. When an electrical field is applied (on-state), the solid light control particles are polarized by the electrical field, and the morphology and state of the solid light control particles are changed, thereby affecting the absorption/scattering and transmission of light by the light valve, so that most of the light can pass through the light valve, and the light valve has enhanced light transmission and relatively bright. Thus, the modulation of the primary color in the dark state of the light valve device is achieved.