Hard to say at this point how the no-glasses tvs will compare to the ones that require glasses...
From myce:
During a recent press conference in Japan, electronics company Sharp said it developed a new 3D touchscreen LCD that doesn’t require viewers to wear special glasses.
Sharp was able to develop 3D screens without the need for glasses by using parallax barriers: in somewhat normal terms, both transmissive and non-transmissive columns are used to trick the brain’s visual cortex into see three dimensions when viewed from different angles.
As mentioned by other media reports, there is a concern that any Sharp 3D product can be held at a wrong angle, which provides a somewhat blurry image.
Despite its possible drawbacks, the new screen — with a current maximum size of 3.4-inches — could one day be used in mobile phones, digital cameras, MP3 players, and other popular portable electronics.
Sharp plans to begin mass production of the no-glasses 3D screen during the first half of 2010, with an unknown release date. The Japanese electronics company believes up to 50% of its screens can be 3D-enabled before 2012.