Originally Posted by So MD TopGun
What is the real purpose for break-in-- nothing to do with preventive burn in -correct
While I don't recall ever seeing any break-in procedure mention it will help, and I even see comments in the instructions claiming something like "....is not meant to prevent burn-in"
(or something like that, which is probably just to indemnify them from "complaints" like "I did your break-in procedure and still got BI", etc.), but the science is
there that the procedure can
prevent some burn-in. Essentially what you're doing is a "burn-in" of the entire screen,
and it's done evenly
unlike station/network logos, black side bars, etc. Since this overall phosphor burn-in is done during the sensitive early "virginal" phosphor hours; when complete, the now "less sensitive" phosphors should be less prone to BI since they've already been exposed to
BI. It makes sense.
Of course there's going to be some that disagree, but that's neither here nor there, because: most do the process anyway, and the other reason is that it stresses components so you can kind of get an idea as to the quality of the set--if it's likely to fail in its life, it would probably do so during break-in. If it passes the break-in procedure fine, then you'll probably get the 50-60,000 hour (claimed) life span.
The only way to know for sure
, is to take several identical TV's and divide them into two groups. Identical settings for both groups. Do a break-in procedure on one group, then none on the other group. Then feed both groups many constant days of things like 4:3 content with black bars, video games with lots of high contrast static images, etc., etc., then examine both groups for BI. I would bet the group that had the break-in procedure would have less BI.