As background, after earning a Ph. D. in chemistry, I worked in the flat panel display for over a decade, many years of which were specifically focused on OLED display technology. As such, when I purchased two LG OLED55E6P sets, one in 2016 and one in early 2017, I was well aware of the potential of irreversible OLED pixel aging ("burn in") occurring if the technology was not implemented correctly (i.e pixel shifting of static images, etc) or through user abuse (i.e. displaying static images at full brightness for extended periods of time.
LG has gone on record (http://www.lg.com/us/experience-tvs/oled-tv/reliability
) indicating that "burn in" is rare except under extended display of a static image at peak brightness conditions. Accordingly, from "day one" on both sets, I have routinely, and almost exclusively to date, used the LG default APS setting when viewing content that displays static content such as logos, banners, etc. Both sets, so far have been used to view primarily cable content such as CNN, MSNBC, and other miscellaneous channels with the usual channel surfing.
Fast forward to today:
1) In the case of the older set, with approximately 825 hours of viewing time, I have not been able to detect any evidence of "burn in" when displaying a uniform red background
2) In the case of the newer set however, with only approximately 675 hours of viewing time, I have seen definite evidence of "burn in" when displaying a uniform red background (the CNN logo and banner).
3) At LG's direction, after I have completing numerous (approximately seven) manual, one hour, compensation cycles on the set displaying the "burned in" CNN logo/banner image, the "burn in" has been reduced but is still detectable.
1) In my experience, despite LG's assurances (http://www.lg.com/us/experience-tvs/oled-tv/reliability
) the risk of 'burn in" in LG's 2016 OLED sets is real even if the sets are used at low power APS display settings with content that includes static images (i.e. almost all cable tv channels)
2) Multiple extended LG's compensation cycles did not eliminate "burn in" in my case, even when the apparent "burn in" resulted from low power settings
3) Based upon the fact that one of my OLED55E6P sets displays 'burn in" and the other does not after similar use, it is possible that there is enough LG OLED panel to panel variability that some panels are significantly more susceptible to "burn in" than others. Unfortunately, in contrast to initial panel uniformity, the results of this variabilty will likely not show up until the return period has long expired.
4) LG states: "It is rare for an average TV consumer to create an environment that could result in burn-in. Most cases of burn-in in televisions is a result of static images or on-screen elements displaying on the screen uninterrupted for many hours or days at a time ? with brightness typically at peak levels". In my case, I would strongly disagree with this claim.
5) After explaining this situation to LG in detail, LG refused to offer any assistance, simply stating it does not warrant against "burn in" regardless of the circumstances.
Before buying an OLED TV from LG, repeat the phrase "caveat emptor" three times.....