Originally Posted by twitchyzero
I seem to get very bad IR on 64" F8500 out of the box, I'm talking literally within minutes. I get paranoid just going to the washroom when my video is paused. It doesn't appear to be permanent because after watching other content it goes away immediately after.
We're talking static images in the smart hub menu, but even the dynamic 'No signal sign' that moves up and down!
Not even crazy cell light or anything...on the dim Movie mode. Burn-in protection/pixel shift is on too.
I'm getting a new panel soon so I dont care about the existing one...is this normal for even out of the box? Will slides/calibration help for my new panel?
Worrisome, but fairly normal on a brand new set. I don't know exactly
why this is case technically as I'm an mech engineer not a physicist or chemist, but in general terms burn in is caused by uneven aging of the phosphor in a cell which reduces its intensity, and image retention like you're seeing is caused by a residual charge build up in the cells. The very basic chemistry explanation is that an element or molecule is in some way excited beyond its normal state, and then must get rid of this extra energy to return to its normal state. Because energy can not be created or destroyed, only converted, a form of electromagnetic radiation (photons) is released, in this case some of that lies within the visible spectrum.
In a plasma TV you have cells that are analogous to a florescent light or any other source that forms plasma gas when electricity is applied. In this case the cells are coated with a phosphor. Plasma releases a photon, photon strikes a molecule in the phosphor increasing its energy, phosphor releases a photon when it returns to its natural state.
Sorry about the technical stuff! Don't know why or how, but it all just came back to me.
So I don't why, but plasmas are more susceptible to burn in/image retention during the first ~200 hours or so. Something to do with the fact that they lose intensity/age quickly during this period. To me, this explains burn in more than image retention. You're definitely experiencing the latter given how quickly it disappears.
During my ISF cert class ages
ago we were taught that a plasma should be “seasoned” during this period by displaying a 70-100 IRE pattern. This served two purposes, eliminating the possibility of burn in during the peribecause reducing the chance of burn in through its life as well as greatly reducing the incidents of IR. In fact, the seasoning process was directed almost entirely towards IR, because actual burn in was touted as a thing of the past.
After the seasoning if any IR was incurred then the remedy was to put up the same slide used for seasoning until it was gone. This was a “put up the slide when not using the display” type of thing. This was ~2006.
Nowadays it is generally accepted that using slide(s) only for ~200 hours is not required
as long you are careful while your set is an infant. The MO is to turn down the intensity and contrast, and watch varying, full screen, and logo/ticker free content. Use zoom for any non full screen content, and also zoom any content with a logo so it isn't visible. Avoid static images and don't let the source turn off so you don't get the no signal box. When going through the menus or using the smart hub you REALLY want minimum cell light and the lowest contrast possible. If you pause a program on a DVR turn off the set.
Also, I have an ES6500 LCD and the smart hub is treated as its own input when it comes to the picture settings. So check that out to make sure the settings you want are in place.
Personally, if I was you I'd enjoy the TV but very much baby it. There's no need to cripple the tv with a slide for 200 hours, but I would put up a high IRE gray or white slide (0 IRE=black, 100 IRE=white, everything in between is gray) when not the TV is not in use so you get out of the “danger zone” more quickly. Use one of the default picture settings with the slide instead of “babying mode.” Just make sure the slide looks gray or white. You don't want a mode that is obviously skewing towards one color.
Lastly, if I picked up a plasma as a replacement for a TV that was still operational and in place, I would indeed set up the new plasma with a signal generator or test disc (I'm a calibrator) for about a week. That gets you ~175 hours.