[mythtv-users] OT: HDTV TV's

Mike Frisch mfrisch at isurfer.ca
Wed May 10 15:01:25 EDT 2006


On Wed, May 10, 2006 at 01:48:20PM -0500, Santiago Almenara wrote:
>    The strange thing is that all the TV's I find (Plasma or LCD) only have
>    1024 x 768 resolutions... does it mean that they reduced 1920x1080
>    broadcasts to something near to 1024 x 768 ???

This is correct.  Not all sets that are able to handle an HD signal
(720p or 1080i) are able to *resolve* all 1280x720 or 1920x1080 pixels.
These sets are approporiately called EDTV (enhanced definition TV),
although they're able to handle HDTV signals.

For example, my BenQ 20" LCD TV can handle 1080i signal, but it's only
an 800x600 resolution LCD panel.

>    What about 720p ( 1280x720) ? Are they also reduced to something near to
>    1024 x 768 ??

As above.

>    Is it a regular behaviour?? Can I find a truly 1920x1080 ?? Or they are
>    only theorical right now??

Yes, this is very typical.

There are LCD panels that have native 1920x1080 resolution, for example
the Sceptre X37SV-Naga
(http://www.sceptre.com/Products/LCD/Specifications/spec_X37SV-Naga.htm).
I believe Sharp is or will have LCD displays with the same resolution.

For plasma, if you go up to the larger sizes (50" and greater), they're
either available now or coming.

Many (most?) rear projection LCD and DLP-based sets have a native
resolution of 1280x720.  There are some exceptions.  HP has a DLP-based
rear projection set that has 1920x1080 resolution and I believe Sony has
a LCD-based rear projection set with the same resolution.

Hope this helps,

Mike.


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