Patent ID: 9625803
Date: 2017-04-18
CPC Classifications: G02B,G03B

Claim:
1. A screen comprising: microcapsules each including encapsulated liquid in an encapsulated region that is a region of an inside of a capsule membrane; and a base material on which the microcapsules are planarly arranged; wherein the encapsulated liquid includes light diffusion particles that scatter light and a dispersion medium that disperses the light diffusion particles, a ratio of an area of the encapsulated region to an area of each of the microcapsules ranges from 0.9025 to 0.990 in a cross-sectional area of the microcapsule projected in a direction perpendicular to a surface of the base material on which the microcapsules are planarly arranged, wherein, with an effective area ratio being the ratio of an area of a region where light is diffused, to a unit area of the screen, and a variance value V defined as, the variance value V is 0.15 or less.