Optical element, screen, and display device

摘要

A screen includes a light diffusion layer in which microcapsules, each having therein a light diffusion liquid that scatters light for displaying a video image, are planarly arranged. The light diffusion layer is fixed to a supporting sheet by a binder material. On a surface of the supporting sheet, a Fresnel lens is formed. A light diffusion plate is made up of the light diffusion layer and the supporting sheet. The screen is made up of the light diffusion plate and a light diffusion plate. Scattering distribution of a scattered wave of light that passes through the light diffusion layer temporally changes.

主权项

1. An optical element comprising a light diffusion layer including cells planarly arranged, said cells each having therein a light diffusion liquid that scatters laser light for displaying a video image, wherein
said light diffusion liquid includes charged light diffusion particles that scatter said laser light and a dispersion medium that disperses said light diffusion particles said light diffusion layer has electrodes that generate an electric field, said light diffusion particles include at least two kinds of particles having different particle diameters, and among said light diffusion particles, a charge amount of the light diffusion particle having a smaller particle diameter is larger than a charge amount of the light diffusion particle having a larger particle diameter.