Patent ID: 7697201

Claim:
A screen that displays images as a result of receiving projection light, comprising: a plurality of plate components that are optically transparent and are provided apart from each other; a scatterer that is placed in a light scattering space that is formed between the plurality of plate components, and is formed by dispersing a light scattering material in a gas or liquid dispersion medium; a flow path that allows the scatterer to flow through the light scattering space; and a flow device that causes the scatterer to flow through the light scattering space, wherein the scatterer flows along a surface of the plate components, and wherein the plate components have a first end portion and a second end portion that is opposite to the first end portion, and the scatterer moves reciprocatingly along the surface of the plate components by turning in an opposite direction at a position of the first end portion and the second end portion.