Particle, optical sheet, screen, display device, particle inspection apparatus and particle production apparatus, particle inspection method, particle production method, screen inspection method, and screen manufacturing method

摘要

The present invention relates to a particle, an optical sheet, a screen, a display device, a particle inspection apparatus and a particle production apparatus, and a particle inspection method, which can reduce speckle and effectively avoid deterioration of image quality accompanying color change, A screen manufacturing method, a particle manufacturing method, a screen inspection method, and a screen manufacturing method. The particles include a first portion 61 and a second portion 62 that have different relative dielectric constants and the first portion 61 and the second portion 62 include reflectance or reflectance spectra at wavelengths of invisible light, The transmittance or the transmittance spectrum of the wavelength is different.