The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Apr. 13, 1999
Tetsuji Suzuki, Kanagawa-ken, JP;
Shintaro Nakagaki, Kanagawa-ken, JP;
Shigeo Shimizu, Kanagawa-ken, JP;
Victor Company of Japan, Limited, Yokohama, JP;
Abstract
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.