[mythtv-users] OT: Buying a new TV - Sharp Quattron or 3D?

[Raymond Wagner]

On 06/07/11 11:32, Neil Cooper wrote:
> The disadvantage with polarized glasses over shutter glasses is that the both L&R eye images are in the same frame. This means you don't get flicker but each eye only gets to see half as many pixels, meaning your HD content (1080) becomes only 540 pixels, which is hardly more than standard definition TV (480).

That may be true for flat panel, but any form of projection display is
going to have two independent polarized projections at full resolution.

> The other advantage of shutter is that polarized glasses are a lot more susceptible to viewing angle issues.

Except shutter glasses ARE polarized glasses.  They're nothing more than
tiny LCD screens.  Your LCD screen works by having two polarized
filters, one static, one dynamic.  Light passes through the static
filter and becomes polarized.  The dynamic filter can adjust plane, and
depending on the angle, determines how much light comes through.

With passive glasses, you have two linear filters at perpendicular
angles.  Each will only allow the in-plane light through.  With active
glasses, you have a static filter, which must be in the same plane as
that in the TV, and another dynamic filter which flips between the two
maximums to allow or block light.  So, any deficiencies that may exist
with passive glasses MUST exist with active glasses.