Official Panasonic VT50 owners thread - Page 183

Originally Posted by richr8 

I've read that my Yamaha RX-A3000 has a very good video processor, but when I stream Netflix through the VT50 the video quality is much better than when I use the ROKU. Unfortunately, the TV buffers the signal often whereas the ROKU does this only rarely. I am running both wireless in close proximity to my router. I would just default to the TV except for the buffering issue.
Any suggestions?

Originally Posted by Tempest261 

Funny that you mention this. I've been trying to get rid of that IR that I mentioned yesterday so I've been running the Disney WOW pixel flipper (colored snow). Then I realized it kills all wifi capability in my condo. I hope I'm not jamming the neighbor's wifi too :/.
Watching normal content and it's fine. Very interesting indeed- normal content must be consistent enough that 802.11x is able to error-correct its way to a readable signal. However, the randomly-generated noise of the pixel flipper must blotch out a huge swath of the spectrum.

Originally Posted by AquaBliss 


Topper you're the only post I can find that says they are using "Bluetooth Headphones" to listen to this set. I can't even find anything about this on the Panasonic sight on either the features tab or the specifications tab.

Anyone else using "Bluetooth Headphones" on this have any issue? I've been waiting for a Bluetooth compatible TV for ages so that I can use wireless headphones properly. This is just what I'm looking for, for late night viewing while the wife is sleeping.

Originally Posted by sheshechic 

Are you streaming WOW?

Originally Posted by Tempest261 

You mean World of Warcraft? I'm partial to Starcraft 2 myself
WOW = Disney World of Wonder. It's a pretty decent calibration disc. The pixel flipper is actually an app, not a video source, so it automatically matches to the 1:1 ratio of your screen, and never dies.
So far so good. After a day (about 9.5 hours) of running the pixel flipper the NBC logo is almost completely gone, and is only barely visible in one of D-Nice's grey slides.
I understand the basic idea, but I really wish I knew more about the physics behind IR AND burn-in. Anyone have any good links explaining it?

Originally Posted by xrox 


There are actually 4 types of image retention on Plasma displays. In order of probability:


1 - Phosphorescence - the long afterglow of the phosphors, can be seen as very slightly brighter areas with the panel off


2 - Residual Wall Charge - reduces the discharge delay making the pixel brighter than normal, can only be seen on a low apl or all black screen


3 - MgO sputtering - high energy discharge sputters the Magnesium Oxide material onto the phosphor and to adjacent cells causing either a darkening of the pixel on a white screen or brightening on a dark screen


4 - Phosphor aging - solarization of the phosphor material causes permanent darkening of the pixel

Originally Posted by Fanaticalism 

I posted a response to a post of mine you quoted explaining the different variables of IR. It was a post from Xrox who hardly posts anymore but was one of the most knowledgeable people on this forum.
Here it is again.

Forget the confusing terminology that is constantly interchanged and mixed up. Here is the scientific info you can trust:

Burn-In, Image retention, image sticking, image ghosting, residual image....etc are all terminology that is constanly interchanged even though there are several mechanisms involved.

Here is a list of the actual mechanisms that I know of in order of probability (most probable first)

1 - phosphorescence - there is a long afterglow component of phosphors that can be seen even when the display is off. It is very very faint however and eventually dissipates.

2 - Residual charge - Plasma displays use dielectric charges to control the on or off states of the pixel. If there is a slight residual charge left when the pixel is turned off the next time it turns on the pixel will be slightly brighter than normal. This will show up as a ghost image on a dark screen. You can tell it is residual charge because the ghost image is slightly brighter than the dark background. This ghost image is transient and easily removed by either a full white screen or watching full screen material for a few hours.

3 - MgO Sputtering - High energy discharge in Plasma displays causes Magnesium Oxide to sputter and deposit onto the phosphor and adjacent pixels. The result is a long lasting ghost image that can take many days to remove. It can be seen as a slightly darker image on a full white screen. Ironically, a full white screen for many hours is the best course of action to resolve this issue as it normalized the deposition of MgO to all pixels (evens it out)

4 - Phosphor aging - Permanent aging of the phosphor material that causes a slightly darker ghost image that is irreversible.

Finally, the screen wipe feature is not useless and will not aggressively "age" your display. It is there to normalize wall charge and MgO deposition (see why above). Remember, plasma displays use dynamic brightness control, so a full white screen or a scrolling white bar should not aggressively age your display.

Originally Posted by Cleveland Plasma 

For what ever reason the 51" Samsung do not test very well compared to the larger sized samsung, in fact they are pretty far behind the 60" and 64" Samsung E8000. The 55VT50 is a far better set than the PN51E8000. The 60E8000 and 64E8000 are much closer to the VT50 quality, but still did not test as well as the VT50.

Originally Posted by TopperMcFly 

Just go into Menu/setup/Bluetooth settings/Bluetooth devices. From there, put your headset into pairing mode and it should detect it. When I put my receiver into standby mode, it passes audio to the tv, which I can then pass to the headset.
Sometimes I have to cycle the Bluetooth once or twice to get it to stay connected. It works great.

Originally Posted by strong island 1 


I still haven't decided yet. Definitely leaning towards the vt50. I have until thursday morning to decide.

Originally Posted by General Kenobi 

What distance are you guys sitting? I've been watching mine for IR and have played a few hours of COD on Xbox as well as watched long movies with black bars but have not detected any IR. I'm 13' from the screen but when I'm really checking for IR I move up to about 2' and see nothing different at either distance. I don't run the scrolling deal, never ran the slides, just mixed content and a few nights of full screen movies on repeat to break it in.

Originally Posted by WiFi-Spy 

Have you thought of getting a 50" GT50 instead?

Originally Posted by TopperMcFly 

...I can easily tell that most of the IR complaints are from slide watchers and that should be disclosed when reporting IR so I can ignore the post. Just my 2 cents.

Originally Posted by 7th Angel 

I can assure you my IR complaint is NOT from watching slides. I have seen it while watching content, as well as when running the Anti Image Retention scroll trying to wipe it. I wouldn't consider it being anal when it shows up, no matter how briefly, while watching content.

Originally Posted by strong island 1 

Earlier you said that you sit very close and that you're worried that a 55" display will be too big and that you might see dithering from where you sit. It's hard to give you advise because you didn't mention how close "very close" is to the screen. You can read about optimum distances here:

http://en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

You should be fine if you're not closer than 6.5" with a 55" screen. The THX recommendation for a 60" screen is 6', and for a 50" screen it's 5'.

The search term I used with Google was "HDTV recommended viewing distance. Google had a list up before I finished typing recommended.

Originally Posted by strong island 1 

It's comments like these that scare me.

Originally Posted by strong island 1 


I did and that was my first one I thought about but I really want the top model and I saved enough for it, i read some review once where it said sometimes even though the panels are the same, the better ones could be saved for the best model and I really want a nice tv.

Originally Posted by strong island 1 


It's comments like these that scare me.

Originally Posted by Tempest261 

So far so good. After a day (about 9.5 hours) of running the pixel flipper the NBC logo is almost completely gone, and is only barely visible in one of D-Nice's grey slides.

Originally Posted by htwaits 

Earlier you said that you sit very close and that you're worried that a 55" display will be too big and that you might see dithering from where you sit. It's hard to give you advise because you didn't mention how close "very close" is to the screen. You can read about optimum distances here:
http://en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance
You should be fine if you're not closer than 6.5" with a 55" screen. The THX recommendation for a 60" screen is 6', and for a 50" screen it's 5'.
The search term I used with Google was "HDTV recommended viewing distance. Google had a list up before I finished typing recommended.

Originally Posted by htwaits 

That's what I would call an Internet Myth. It was claimed for some of the Pioneer Elite models but not all of them. I wouldn't use that information as a buying criteria.It's also been claimed for other displays. It's probably better to look at actual features and how they match up with the way you want to use your display.

Originally Posted by htwaits 

If you're the type who must obliterate the faintest signs of IR, no matter how briefly they show up, then it would probably be best for you and your family to get something else. On the other hand, if you're the type who gets involved in the story or the action that you're watching, then it will take more than a brief glimpse of IR to distract you.
There are a small percentage of people who are susceptible to seeing what was called the "rainbow effect" when watching DLP displays. Some of those people adapted and forgot about the effect. Some of the same group just avoided DLP displays. A third very small group of those people, who could see the "rainbow effect", attacked the vast majority of DLP owners as people who just couldn't face reality.
It's hard to avoid watching the images instead of the "story" when anyone has a new display, but it's possible. Almost everyone does it fairly soon.

Originally Posted by Tempest261 

You mean World of Warcraft? I'm partial to Starcraft 2 myself
WOW = Disney World of Wonder. It's a pretty decent calibration disc. The pixel flipper is actually an app, not a video source, so it automatically matches to the 1:1 ratio of your screen, and never dies.
So far so good. After a day (about 9.5 hours) of running the pixel flipper the NBC logo is almost completely gone, and is only barely visible in one of D-Nice's grey slides.
I understand the basic idea, but I really wish I knew more about the physics behind IR AND burn-in. Anyone have any good links explaining it?

Originally Posted by strong island 1 

It's comments like these that scare me.

Originally Posted by htwaits 

That's what I would call an Internet Myth. It was claimed for some of the Pioneer Elite models but not all of them. I wouldn't use that information as a buying criteria.It's also been claimed for other displays. It's probably better to look at actual features and how they match up with the way you want to use your display.

Originally Posted by htwaits 

If you're the type who must obliterate the faintest signs of IR, no matter how briefly they show up, then it would probably be best for you and your family to get something else. On the other hand, if you're the type who gets involved in the story or the action that you're watching, then it will take more than a brief glimpse of IR to distract you.

Originally Posted by Michael2000 

So you watched one day of Olympics (8-12 hours?), and then ran the pixel flipper for 9.5 hours to get rid of the NBC logo?
Michael

Originally Posted by Gas0linE 

Can i ask about the pixel orbiter? I will be getting my vt50 soon. Should I have this on? What exactly does it do? Do i need to turn it on rigjt away even for the break in?

Originally Posted by Tempest261 

Yeah I take back what I said. The NBC logo is definitely there. You have to put on a dark grey slide to see it. It's faint, but it's there, pixel orbiter or not. Can't see it in the scrolling bars, however.

Originally Posted by rogo 

Odd. I really cannot see it on mine at all. Possibly, I'm just watching less than you. Or my settings are different enough. Or our sets are different enough. But I cannot detect any evidence of an NBC logo on black or white backgrounds. Honestly, with how dark the black is, I'm really unclear how one could detect anything against a black background anyway, but perhaps that's another matter entirely.

Originally Posted by Michael2000 

So you watched one day of Olympics (8-12 hours?), and then ran the pixel flipper for 9.5 hours to get rid of the NBC logo?
Michael

Originally Posted by rogo 

You need to ignore it; it's almost entirely useless.

Originally Posted by rogo 

Odd. I really cannot see it on mine at all. Possibly, I'm just watching less than you. Or my settings are different enough. Or our sets are different enough. But I cannot detect any evidence of an NBC logo on black or white backgrounds. Honestly, with how dark the black is, I'm really unclear how one could detect anything against a black background anyway, but perhaps that's another matter entirely.

Originally Posted by 7th Angel 


I can assure you my IR complaint is NOT from watching slides. I have seen it while watching content, as well as when running the Anti Image Retention scroll trying to wipe it. I wouldn't consider it being anal when it shows up, no matter how briefly, while watching content.