"The invention of a light barrier, which made use of light exclusion from polarisation effects, made it possible to switch a display mechanically from 2D to 3D. Then in 2001, another breakthrough made it possible to switch the display electronically from 2D to 3D.
This finally achieved the goal, of a full resolution 2D display that can be rapidly and electronically switched to 3D. The user can then perceive depth in the image, without having to wear glasses, or use other aids. The image is also comfortable to view for long periods. It is this technology which Sharp is now putting into production."