True-3D imaging and display systems are based on physical duplication of light distribution. Holography is a true-3D technique. There are significant developments in electro-holographic displays in recent years. Liquid crystal, liquid crystal on silicon, optically addressed, mirror-based, holographic polymer-dispersed, and acousto-optic devices are used as holographic displays. There are complete electro-holographic display systems and some of them are already commercialized.
© 2010 IEEE
Fahri Yaraş, Hoonjong Kang, and Levent Onural, "State of the Art in Holographic Displays: A Survey," J. Display Technol. 6, 443-454 (2010)