I'm going to read the following statements from LG USA as potentially meaning burn-in may not specifically be intended for coverage by the warranty. The bold portions are their statements that have my focus, and the bold font is not part of the original link below. Since the same statement was given to two media sources specifically asking about burn-in coverage, I'll presume this could indicate a lack of intended coverage.
"Limited panel warranty applies to panel failure on LG G1 OLED TVs due to a defect in materials or workmanship
under normal and proper use during the warranty period."
"As with any self-emitting display, OLED TVs may experience temporary image retention under certain conditions, but permanent image retention, or burn-in
, is rare under normal viewing conditions. Image retention is not a product defect
But will it cover burn-in?
We’ll first, the purpose of this thread is to try to build support to convince Rtings to perform a repeat of the 2017 burn-in test on the G1 OLEDs (or at least the most severe of those 2017 burn-in tests, meaning CNN). So the point of this thread is not to debate the intent of LG’s 5-year warranty on the G1.
That being said, LG’s position is that burn-in is impossible on WOLED through ‘normal and proper use.’
And second, the Rtings CNN burn-in test is great because no one can argue it’s not ‘normal and proper use’ and so the only question is how many hours of CNN per year can at all be considered representative.
CNN logo / ticker burn-in started at ~30 weeks or 4200 cumulative hours on the 2017 test (@ 200 cdm2), which would translate to 840 hours / year or 2.3 hours per day each and every day for 5 years. Between various improvements LG has made since then (including the new 3S4C stack), I’m expecting that result to improve to 6000-7000 hours meaning 3.3 to 3.8 hours per day for 5 years…
LG’s logo dimming feature can help reduce the impact of logo’s but cannot help with the talking-heads (newscasters) correlated-content burning-in the ‘ghost’ in the center of the screen:
This image of the ghost was after 102 weeks or 14,420 hours cumulative @ 200 cd/m2, but first signs of the ghost’s head started appearing at week 36 or 5000 hours (2.8 hours/day for 5 years).
If the ghost’s head doesn’t first appear until 6000 or 7000 hours on a G1 (as I estimate), that indicates 20-40% of substantive improvements LG has delivered since 2017 (which was already a significant improvement over 2016).
I don’t want to enter into a debate as to whether LG’s new 5-year warranty covers an owner who watches 8 hours of CNN per day or not. If and when any of the 3 people on the planet who might trigger that burn-in from their specific ‘normal and proper use’ approach LG with a warranty claim, it’ll be LG’s call whether they are covered or not…
And gaming is also a bit dicey. Even if you want to loop hours of HDR gameplay as a torture test, how many cumulative hours of the same individual game can be considered normal / typical?
Maybe Rtings sets an upper limit of 1000 hours per specific game and can then just cycle through a series of 5-10 games selected from the top 10 games list…
And as far as HDR content, I suppose the same approach could be taken. With a preloaded sequence of 1000 hours of HDR content, Rtings could loop every 1000 hours / 7 weeks and that should limit the number of identical highlight repeats to fewer than 10 over a 52-week test…