[mythtv-users] OT: Why 1080p?

[Steven Adeff]

On 11/10/06, Ashley Bostock <abostock at gmail.com> wrote:
> On 11/10/06, Ed Gatzke <ed.gatzke.groups at gmail.com> wrote:
> > > > 720p would look better on a 1080p display than 1080i display, but
> > > > 720p would also look better on a 720p display than a 1080p display
> > > > since no scaling is required at all.
> > >
> > > I've read in a german computer magazine that this is not true. They
> > > said, 720p content on a 720p display is first being upscaled a little
> > > bit by the display to get overscan and then a little bit is being cut
> > > around, so it's 720p again. The same applies for 1080i content on a
> > > 1080i display.
> > >
> >
> > Maybe I don't have a good eye, but still think upscaling is the way to go.
>  I would love to have a 2160p display so I could "double" 1080p and "triple"
> 720p, with proper interpolation as needed.  Plus I would have something like
> 4300x2160 as my desktop for not video stuff.
> >
> > And it should run at 120 Hz so "pulldown" can be fluid for whatever you
> want (for 24, 30, 60 fps sources)
> >
> > Again, I plan to try myth on my 30 inch Dell at 2650x1600.  Anyone try
> > this yet?  Maybe I will just run transcoder on a 1080p broadcast to make
> > some 1600p video... HA.
> >
> What exactly is a 1080i display and how does it differ to a 1080p display?
> Surely they are the same thing, with 1080i content being deinterlaced to
> provide 1080 lines?

A display that "draws" half of each image per "line" refresh. Just
like the old NTSC days, but with pixels, and more information. A 1080p
display "draws" the *whole* image per refresh.

-- 
Steve
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