Author Topic: Plasma, LCD or LED?  (Read 386 times)

ajdover

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Plasma, LCD or LED?
« Reply #15 on: December 08, 2010, 04:28:01 PM »
I've got two Sony Bravia LCD's, and I love them.  I have no problems with movies, video, games etc. that I can notice.  Then again, I think one P-Bass sounds just like the next ... ;-)
 
Alan

cje

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Plasma, LCD or LED?
« Reply #16 on: December 08, 2010, 05:33:43 PM »
24oowattman? First of, I'm sorry for not getting right back to this thread.  I've been so busy lately, that I've been having to pick and choose what things I get to!  I'm sure you can relate.
 
Regarding 720p and 1080p, there is a difference, but of course (as always) it depends on the source.  Not all TV stations adhere to the same standards? For instance, FOX and ESPN broadcast 720p, but CBS and NBC broadcast 1080i (which is far more common, in the world of broadcasters).  They both look great.  the progressive frame rate naturally lend themselves toward sports and other material with quick lateral motion, but 1080i has a greater pixel density.
 
Darkstar01 is right, but the issue isn't nearly as bad as it once was.  Earlier generation plasma TVs had a terrible problem with burn-in.  It happened often and with little effort.  It's not quite like that anymore, and many models of both LCD and Plasma now have screen savers that will kick in after a period of inactivity.  Of course, that doesn't stop static graphics that stay on a screen for hours at a time in a game from causing problems.  I think many gamers would pick LCD for this reason alone, but I've heard from people in our digital media department that games actually look better on a plasma.  I don't have too much experience here, though.
 
1080p is good to have, in my opinion - especially if you're also using a nice AV receiver or some other device capable of scaling your video.  For instance, in my HT setup, I use my AV receiver as a source selector, so it handles switching audio and video from all my sources, with just one cable going out to the TV.  The receiver takes all my my signals and upconverts them to 1080i (my CRT cannot accept 1080p) - even composite signals.  I don't stretch the picture, though, as I like watching video in its original aspect ratio.  1080p is a great format to upconvert to, if your TV can handle it - and of course, a Blu-ray authored to 1080p will be unrivaled!
 
Side-by-side, 1080p will usually outshine 720p (content being more-or-less equal), because its the same frame rate (60 fps), but a higher pixel density on the same size panel.  Also, if you buy a TV that has a native 720 vertical resolution, it will have to scale down any 1080 video (most cable or FiOS-type broadcasts, and Blu-rays) to fit in the 720 lines of resolution - and then your picture will depend ultimately on the quality of the scaler built into the TV. You'd be much better off purchasing a TV that can handle 1080p natively, and thus any resolution below it.
 
And tomhug - if I were in the market, there's only one TV I'd buy right now, and it's a Panasonic Viera!  I'm sure you're LOVING it!  The Viera line is the first Panasonic to incorporate (albeit not fully) the Pioneer Kuro technology they purchased a few years ago.  It's really the only TV I've seen that can rival the mythical Kuro.
 
2400 - I hope you continue to investigate and learn about the different technologies, and I hope you get a chance to see them in person in a decent environment - it makes such a difference.
 
?and then, of course, it all comes down to content!
 
CJ

2400wattman

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Plasma, LCD or LED?
« Reply #17 on: December 11, 2010, 09:47:59 PM »
Thanks again CJ. I'm probably going to get a Viera but in 720p. I'm not a hard core A/V nut to worry about the difference between the two resolutions, especially when my checkbook is screaming at me!  
CR rated the Viera sets highly despite having only two HDMI plugs. So, I think that's what is on the horizon.  
Thanks for all the input guys it really helps.

dfung60

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Plasma, LCD or LED?
« Reply #18 on: December 12, 2010, 12:44:39 PM »
2400wattman -  
 
Just a couple of other tidbits if you haven't already pulled the trigger.  If you are replacing a conventional TV with a flat panel, anything will seem good, but unless you really want to do it for the fewest bucks, I would bump up a bit in the specs (and it couldn't cost too much more).
 
On 1080p vs. 720p:  With the lower prices on HDTVs this year, I think you want to buy up to 1080p.  If this wasn't already obvious, the 1080 and 720 are the number of horizontal scan lines on the display.  So the 1080p display has 50% more scan lines and can display much finer detail.  That's a lot more dots on the TV screen as well - TVs are usually 16:9 ratio these days (there was a period where a slightly squarer 16:10 was common), so a 1080p display is typically 1920x1080 where a 720p display is 1280x720, so the 1080p display has more than double the pixels.
 
Over the air HDTV broadcasts have a specific amount of data that they can stream in their frequency bands.  Some stations broadcast 720p where p is for progressive scan.  This means they send each of 720 lines every refresh cycle of the display.  Other stations broadcast in 1080i where i stands for interlaced scan.  These stations send more 1080 lines per frame, but they  don't have enough bandwidth to send all 1080 lines every refresh cycle, so they send the even lines first, then the odd, then even again at half the frame rate of the display.
 
When a 720p panel gets a 1080i signal, it collects the entire frame, then scales it down to 720 lines by throwing away data.  The time delay that people have mentioned is the processing time of collecting a frame, then scaling it.  This scaling task is also happening in a 1080p TV set - it can natively display 1080i (or 1080p) signals and has to make up additional data to fill in for the lower res 720p sources.
 
If you have directly connected devices, like a blu-ray player, XBox360 or PS3, they have full digital bandwidth and actually provide a 1080p signal - full resolution and every scan line in every refresh.
 
This is why you probably don't want to get a 720p TV today - the panel has lower native resolution, and almost every source other than 720p TV stations has to be scaled.  The scaling takes compute horsepower and has some visual artifacts, so you'll take a hit on the best quality sources.  Even a cheap upscaling DVD player will generally make 1080p output (and may not make 720P), so you'll end up with multiple conversion steps.
 
The other item is HDMI plugs.  Not only do they carry the video and audio completely digitally, but they are required for maintaining encrypted content to the display.  Even today, you see many devices that can only interface via HDMI - an AppleTV for instance.  It's not just convenience of a single plug, it's the encryption that's being maintained throughout the path that's leading it this way.  Blu-ray players output full resolution through HDMI only and generally can only put out a SD tv signal through analog jacks.  If you don't have enough HDMI jacks, you can get an external switch which is not only a pain, but relatively expensive because it has to pay for encryption licenses too, or it won't be able to pass blu-ray content.
 
So future-proof yourself a bit by getting more 1080p and a few more HDMI jacks!  At the small incremental dollars these days, you won't regret it.
 
David Fung

lbpesq

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« Reply #19 on: December 12, 2010, 01:48:59 PM »
Any thoughts about the LG Infinia 60PK950?  I'm leaning towards plasma for the viewing angle issue.  Also, I've been reading that plasma is superior for sports and movies.  As I understand it, I can hook up this TV completely wireless ... the only wire coming out of the TV will be the power cord!  Any suggestions or info greatly appreciated before I clean out the wallet.  Also, anyone want a Sony 60 projection TV cheap - you pick up. Lol
 
Bill, tgo

lbpesq

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« Reply #20 on: December 15, 2010, 08:12:43 AM »
No thoughts?  Anyone?

cje

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« Reply #21 on: December 18, 2010, 07:35:41 PM »
Bill - sorry, with Christmas around the corner, it's been difficult to find to to get online, much less respond in a meaningful way.  I have not seen this set in person, so I really can't comment too much - from what I've read, it compares well to other manufacturers flagship models (read - Panasonic Viera, since this is a model I HAVE been able to put a critical eye to).  I have, however, heard several people state that the magic wand remote is kind of lame - do you have a universal remote system that this would be controlled by?
 
If I had the choice, I would probably not want to rely on a wireless technology for my picture, but maybe that's just me not experiencing this technology enough.  I just feel like I wouldn't want to introduce something that could cause MORE signal delay than necessary.  If I were mounting this on a wall, I'd certainly put a cable run in the wall, so I could be wired, and put a recessed clock outlet behind the TV for power.

lbpesq

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« Reply #22 on: December 28, 2010, 10:03:48 PM »
Well I pulled the trigger.  Got the 58 top of the line Panasonic.  The deal I got was too good to turn down - at least $200 less than the cheapest Internet price I've found.  The picture is outstanding.  I haven't tried the 3D yet.  I think I need to get a blu-ray player for that.  Oh well, more stuff to learn about.
 
Bill, tgo

cje

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« Reply #23 on: December 28, 2010, 11:24:17 PM »
Very happy for you - that's what I'd have done if I were you.  Enjoy it!