![]() ![]() They all played real content (not test patterns) from live cable TV sources, video game clips, or recorded sports. The 'Screen Shift' option was enabled on all TVs, and 'Pixel Refresher' was performed before each set of measurements taken on each TV. The TVs are all controlled by a microcontroller to repeat a five-hour on and one-hour off-cycle four times per day. We also independently tested two different brightness ('OLED Light') settings with the same content to see the impact. To do so, we replicated five different real-world conditions in an accelerated aging test. The goal of the test is to provide an idea of the usage time of a 2017 OLED TV before burn-in becomes apparent, which will depend on your usage. For example, someone who plays Call of Duty or another video game without bright static areas for two hours per day may expect similar results after about 2500 days of usage. ![]() To see how the results at this 5000-hour point compare to your usage, divide 5000 by the number of hours you watch each type of content per day to find the number of days. We found that in our 20/7 Burn-In Test, the red sub-pixel is the fastest to degrade, followed by blue and then green. Our maximum brightness CNN TV has more severe burn-in than our 200 nits brightness CNN TV. LG has told us that they expect it to be cumulative, so static content, which is present for 30 minutes twice a day, is equivalent to one hour of static content once per day. Note that we expect burn-in to depend on a few factors: Those concerned about the risk of burn-in should go with an LCD TV for peace of mind. Those who display the same static content over long periods should consider the risk of burn-in, though (like those who watch lots of news, use the TV as a PC monitor, or play the same game with a bright static HUD). As a result, we don't expect most people who watch varied content without static areas to experience burn-in issues with an OLED TV. Long periods of static content have resulted in some permanent burn-in (see the CNN TVs) however, the other TVs with more varied content don't yet have noticeable uniformity issues on normal content. Update : After more than 5000 hours, there has been no appreciable change to the brightness or color gamut of these TVs. Our stance remains the same: we don't expect most people who watch varied content without static areas to experience burn-in issues with an OLED TV. Uniformity issues have developed on the TVs displaying Football and FIFA 18 and are starting to develop on the TV displaying Live NBC. Update : The TVs have been running for over 9000 hours (around five years at 5 hours every day). With new panels, new heatsinks, and even brand-new panel types like QD-OLED, there are a lot of unknowns. It's generally accepted that burn-in isn't as much of an issue as it used to be, but it's unclear just how much better the newer OLED TVs are. Although burn-in isn't the main goal of this test, we're hoping to better understand how newer OLED panels compare to the older generation of OLEDs. To that end, we've decided to start a new accelerated longevity test to better understand how long new TVs should last and what are the most common points of failure. However, we still haven't addressed the issue of longevity in general, and we don't know if newer OLED panels are still as likely to experience burn-in. This test ended in 2019, as we feel that we now have a good understanding of what types of content are likely to cause burn-in. Follow along for our updates over the next two years on our new RTINGS com R&D Channel. You can learn more about how we designed and built this test in our latest video. We've started a new 100 TV accelerated longevity test, and one goal of that test is to better understand how well modern TVs handle image retention and burn-in. ![]() It gives a more realistic, real-world example of what to expect depending on how you usually use your TV. That test was an extreme case, using patterns with a lot of static content.īased on your feedback and comments, we bought six LG OLED C7s, which played real, non-altered content. Our previous 20 hours per day burn-in test ran for a little over two years, and the OLED TV has permanent image retention. OLED TVs have great picture quality however, there are concerns about their long-term performance due to the possibility of permanent image retention, commonly referred to as burn-in. ![]()
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