Quote:
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 (screen-wide)
even 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.