Räumliche Lichtmodulationsvorrichtung und Farbanzeigegerät

摘要

A color display apparatus includes a light source for emitting white light, a spectral unit for dispersing the white light into a red (R) light ray, a green (G) light ray, and a blue (B) light ray, and a spatial light modulation device. The spatial light modulation device includes a single hologram lens layer for diffracting and emitting incident light rays in predetermined directions depending on incident angles and wavelength bands and a liquid-crystal panel having a liquid-crystal layer for performing light modulation according to video signals of corresponding colors to light rays admitted through the hologram lens layer to emit the light rays, and color light components of an R light ray, a G light ray, and a B light ray admitted on the spatial light modulation device through the spectral unit are admitted on the hologram lens layer at different incident angles of the respective color light rays.