Hologram Industry News

The use of a projector to power the primary handset display opens up the possibility of holographic displays in the future. Samsung is developing a new technology to use optical projection displays inside mobile phones, instead of LCDs. This may soon enable cellphones with 3D holographic displays. Projection technology has become miniaturized enough to fit inside a handset, and Samsung has developed a “panel type waveguide,” a new refraction technology, that can distribute the light from these tiny optical projectors evenly across a mobile phone’s display.

Projection technology has benefits over LCD or OLED display technologies because the projection display can be scaled to any desired size (presumably by altering how the light is refracted onto the display), whereas an LCD or OLED display needs to be manufactured in a predetermined size.
Sources: http://gadgets.todaynominated.com/2008/02/22/samsung-phone-with-3d-holographic-projection-display/