Burns on the Oled screens
OLED screens are of a high quality, but usually suffer burns over time
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It is well known that OLED TVs degrade more over time than LCDs.
The burn is a phenomenon by which an image is printed on the screen despite changing the channel. This usually happens when a still image is kept on the screen for many consecutive hours; A perfect example are the logos of the channels at the bottom, although it can happen with any image.
This situation can occur in two variants; the first is temporary and is known as image retention; the second, known as burn, is forever.
It must be mentioned that the burning is not suffered by many users in their homes, unless they always keep the same channel on their television. It usually occurs, in most cases, when TV is used commercially.
The members of the Youtube channel Rtings.com wanted to know how long it takes for these burns to appear; for this, they have been testing LG's OLED TVs of 2017. Rtings used these TVs for 5 hours, followed by one hour of shutdown and then turned on. This cycle was repeated four times a day.
The results are not very encouraging, the signs of burn were present after 4,000 hours of use. A very negative data for the company taking into account that LG claimed that their TVs lasted 30,000 hours without burns; 50,000 hours in the 2018 models, although these figures refer to domestic and non-commercial use.
Five of the TVs used 200 nits of brightness, while another used the maximum. Two TVs maintained the CNN channel and another the FIFA 18 title, both suffered burns from their respective logos. In contrast, another television with NBC was not burned and another with a sports channel either.
We have been able to talk to a LG representative who explains that these tests are stress tests that try to push the TV to the limit. As detailed from the company, at the consumer level there is no problem, since the current use is different from the tests.
From LG they indicate that the incidence ratio of their OLED TVs is lower than that of LEDs in commercial intensive use. In the same way, they specify that what is produced in their televisions is the so-called image retention and not the burned to which Rtings refers.
The first advice is simple, avoid keeping fixed images or the same channel for many hours in a row. Another option is to lower the brightness of the TV, especially if there are still images.
Anyway, the vast majority of TV has configurations to minimize the risk of burns, as is the case of screen protectors after long periods of inactivity.
Any device with OLED screen can suffer burns, the phones are among them. The defect is the same, although in terminals it usually occurs with the upper notification bar.
Users of Google's Pixel 2 XL had this problem on their screen, which is why the company decided to extend the warranty on that model. Apple warns about the possibility of this phenomenon on your iPhone X.
In this sense, each brand is different and not all cover burns in your warranty, so it is best to go to the website of our phone.
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