Re: Plasma display recommendations
Re: Plasma display recommendations
- Subject: Re: Plasma display recommendations
- From: Richard Wagner <email@hidden>
- Date: Sun, 21 Jun 2009 13:27:56 -0700
On Jun 21, 2009, Graeme Gill <email@hidden> wrote:
How many levels does it have then, and are they linear light, or
on a gamma curve ? (technical information seems sadly lacking,
which is all too typical. Lots of flashy prose, and no
detail.) Is it still using dithering to get the levels, or
are they native ?
Of course, I have no answers to those questions, nor an easy way to
determine the answers.
[ I've walked through many a TV display area and been amazed at
how awful the large screen pictures are. Almost without exception
they are covered in artefacts such as dithering, "fizzing", JPEG
artefacts, MPEG motion compression artefacts, posterization etc.
One that stands out is coverage of sport being played on
grass.
Yup. And did you walk down the computer isle and look at monitors?
Not exactly impressive. Would you pick up one for your home
workstation? Me neither.
As the camera pans, the grass becomes a fuzzy green
mess, and then after the camera stops panning and the first
I-frame comes along, it pops back into sharpness. I can only
imagine that such displays impress the untrained eye by the
sheer size,
brightness and dazzlingly over sharpened, over saturated colors,
I absolutely know what you mean and I agree. Of course, the input
signal to those displays is often lousy - it's often nowhere near the
1080p that Blu-Ray is capable of. Also, LCDs in general typically
have longer response times than their plasma and CRT counterparts,
creating visible ghosting when images rapidly change. The motion blur
is a problem with LCD displays (not plasma displays) - which is
mostly what you'll see walking down the isle. It's described here:
http://hometheatermag.com/gearworks/707gear/
To really compare these displays properly, though, it is really
necessary to use high-quality input. 1080p is it, which means the
signal in general must be coming off a disk (or drive), and not from
broadcast video or a regular DVD.
http://en.wikipedia.org/wiki/1080p
http://en.wikipedia.org/wiki/
Comparison_of_high_definition_optical_disc_formats
Check out a good high-end plasma (or LCD) monitor sometime, in a
place that knows what they're doing. You'll be impressed.
--Rich Wagner
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