Originally Posted by fogey
Don't think brightness matters much, just turn down the contrast. For example, if you watch something in aspect ratio 2.35:1, black bars are the part of the picture. When you crank up brightness, those bars become brighter too, so the possibility of uneven ageing of the phosphors doesn't increase a bit. But when you turn up a contrast, black bars become darker and the rest of the screen brighter, so the central part wears off more rapidly than the areas covered by black bars.
NO. You want to turn down BOTH....
Zero out Contrast (picture) and Brightness.
The idea is to gently excite the phosphors, brightness directly affects the amount the phosphors are being excited.
YOU DON"T WANT ANY BLACK BARS if you can avoid them
during the intial 100-200 hours. That means zoom in on movies so there are no bars on top/bottom. That means wide/just/zoom regular TV so there are no side bars. The idea being to evenly
excit the panel's phosphors.
Some will say that's extreeme. That just watch what-ever and keep settings down. Others say no need to even turn things down, just enjoy the TV.
That's a personal choice, that I decided was in favor of being extra cautious for the first week. Big deal over the lifetime of the panel.
Another option is to watch what-ever on any settings and in native view, then, when not watching, switch to HD or other screen filling source and let that run at zero settings to even out everything.
Again, if you are trying to gently awaken the new phosphors, turn down both picture AND brightness.