Originally Posted by BlackShark
Icester what kind of passive screen are you talking about, none of the ones I know relate to your suggestions.
To answer davyo's question :
I own two different passive 3D displays and have used active displays over the years.
Passive does not mean it's half resolution, it's a shortcut that is often wrongly made because of the lack of products on shelves : passive only relates to the type of glasses used, for example I have a full resolution passive display using dual projectors, filters and a silverscreen, other displays work differently and have different characteristics.
One of the displays I have is a Zalman Trimon 22" monitor, it uses the same polarisation technology as this Vizio TV, this technology is often called Xpol or µpol.
First, yes this display is half resolution when you put the glasses on and it shows, however the picture looks better than what most people believe when told about the half resolution, you usually get the same kind of feeling as when you watch a very good 720p display with good scalers.
These displays feel very bright, there is much less brightness difference between 2D and 3D presentation (there is still is a difference though).
Ghosting wise, it's roughly equivalent to the new 3D plasmas (Panasonic and Samsung). It's definitely there but it is low enough to not be an issue and since it's a passive system, ghosting is always positive (bright ghosting) and never negative (dark ghosting as it appears sometimes on LCD 3DTVs with shutter glasses), and it's always proportional to the contrast of the picture.
Ghosting and view angles are related with these displays, they have a narrow viewing angle, horizontally it's quite wide, much wider than what you'll want to use for 3D presentation (3D watched from the side always looks bad, no matter what screen technology you use),
the big problem is the vertical view angle :
On the 22" display it's really small because the pixels are very small, when you watch the screen from the side, the light of the pixels you see goes through the wrong line of filters and you see parts of both pictures (almost 100% ghosting as if you were not wearing glasses at all).
You have to be exactly at the right height, and it makes using these screens very hard for multiple viewers.
On the big screen though, the pixels are bigger so the view angle also is bigger. I have seen a similar display made by hyundai at a trade show and the view angle is indeed wider. You should have no problem getting everyone in the sweet spot by tilting the TV forward or backward a bit when you install it, it will work as long as everybody is sitting on the couch, however if you have some people sitting and others standing you'll exceed the available view angle.