Wyohomeboy wrote:
I did a search, and couldn't find a thread on this subject, but I apologize in advance if there is a thread I couldn't find.
Anyways, I am getting tired of cave drawings and my etch and sketch, and am seriously contemplating the purchase of a HDTV. I already pay for directv HD receivers (what a dumbass), and have spoken with a few friends about their purchases.
What I have heard is that Plasma does not do quite as well as LCD on really fast sports like hockey, but that it is catching up - I figured I would probably go with LCD.
Nope, you have it opposite. Plasma does much better on fast action. Let's examine why.
LCD stands for Liquid Crystal Display. What you have is not only an LCD screen, but a backlight and an LCD screen. The LCD screen is placed in front of the backlight, and overlays the color over it.
In order for a TV to display a picture, it refreshes each line individually in a very short amount of time (in the US, where we operate on 60 Hz, that's once every 1/60th of a second). For an interlaced signal, every other line is refreshed, then it goes back and refreshes the other lines. Essentially there's 30 refreshes per second then. For a progressive signal, every line is refreshed, so you get what amounts to 60 refreshes per second.
The problem with LCD and motion blur is that it takes more than one refresh to change a segment from one color completely to a different color. During the first refresh, it may only go part of the way - thus it will take subsequent refreshes to make it go to the correct color. This translates to blur when you have fast moving objects, as the TV always is trying to "catch up."
Thus, the higher the refresh rate, the crisper motion will be for an LCD TV. A 120 Hz LCD will refresh the picture twice as much as a 60 Hz LCD - 120 times per second. While the source material will still only refresh 60 times per second, these extra refreshes will help the segments change color quicker - thus motion will appear crisper.
Plasma does not suffer from this issue. It works on an entirely different principle - a certain mixture of noble gases is held between two panes of glass. Applying electricity turns this gas into plasma. The phosphors in the gas are excited, and thus produce a specific wavelength of light determined by the electrical charge applied.
This means that plasma pixels can change color instantaneously. While you may see plasmas as great as 480 Hz, it's not going to give much added benefit. Seeing how source material is 60 Hz, a 60 Hz plasma will look just as good, as the colors can change instantaneously. Thus the motion is much smoother on a plasma.
The other advantage of plasma is that it offers much more realistic colors, especially black levels. Since LCD's rely on a panel with varying transparency placed over a constant backlight, the blacks are often less true, as they are still allowing some light through. Plasmas, however, can produce a perfect black. Granted, LCD technology has come a long way in the past few years and the blacks don't look as bad as they used to, a decent display should look great, but plasma still wins that category.
Quote:
I am looking at 46" TV's, and would like to keep it within a couple hundred of $1000. Any advise would be greatly appreciated on where to buy, what brand, and LCD vs Plasma.
Many thanks
Homey
When looking in that range, you're probably going to have to get an LCD. There's not too many plasmas smaller than 50" anymore. Panasonic still makes 42" ones, but the next biggest size is 50". LCD gives you many more options in that range - most every company has a 46" or 47" LCD.
Definitely Samsung for LCD. They have the best, period. Toshiba isn't bad either - their old sets were only OK, but I have one of last year's models and it's very nice too. I still prefer Samsung, but wouldn't argue against either. Sharp used to have good LCD's - heck, they basically invented them, but as of late they've gone downhill. LG's mid-line series aren't bad either, I'd stay away from their lower end but they do make decent sets too.
Panasonic wins hands down for plasma, unless you go to a Pioneer Kuro (way over your budget, and being discontinued/sold to Panasonic). Even their entry level plasmas look awesome. I scored a 50" 720p for $800 from Best Buy last year, the thing is totally awesome. The picture blows away the picture on the 46" Samsung that we spent twice as much on at the same time.