The Yomiuri article says the technology transmits different images at different angles to create the third-dimensional image, rather than the dual image shutter-based technology common on retail shelves today.
Other companies are developing 3D imaging without the need for glasses, such as 3D digital cameras and camcorders which utilize special displays for on-camera 3D viewing only. Others have gone ol’ school offering printing of 3D images on special lenticular paper, such as the Fujifilm dual lens FinePix REAL 3D camera.
Hats off to the first company to do 3D television without glasses. The requirement, common to Samsung, Panasonic and Sony systems, presents itself as an obstacle considering the drop in exposure, price (about $150 for a pair of shutter-based glasses), and overall dorkiness factor.