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Displays using OLED technology have one major drawback – they are prone to burning individual pixels. This is usually caused by many factors, but among the most serious ones is the presence of static elements in the user interface that appear on the display for a long time and often in the same place (for example, status bars or other static UI elements). Manufacturers of displays (and logically also phones) are trying to fight burn-in, but some are less successful than others. Since last year, Apple has also had to deal with these concerns, which used an OLED panel in the iPhone X. And according to the first tests, it seems that it is not doing badly at all.

The Korean server Cetizen has put together a challenging test in which it compares the screens of three phones – iPhone X, Samsung Galaxy Note 8 and Galaxy 7 Edge. This was a very demanding stress test during which the phones' displays were active for 510 hours, during which the displays displayed static text at maximum brightness. The aim of the test was to find out how long it would take for the text to be visibly burned into the display panel.

The progress was quite surprising for the testers. The first signs of burn-in began to appear already after seventeen hours, on the display of the iPhone X. However, these were basically invisible changes on the display that required a really detailed examination and would not be noticeable during normal use. The fact that this condition of the iPhone's display remained the same throughout the test was later shown to be much more interesting.

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The Note 8's display started to show the first signs of burn-in after 62 hours. Randomly approached people had no problem recognizing the burned-out part of the display, as the difference was obvious. Conversely, in the case of the iPhone X, people did not register any visible changes in the display. After 510 hours, i.e. more than 21 days of continuous load, the Note 8 fared the worst. The Galaxy 7 Edge, now two years old, fared significantly better. The best result was the iPhone X, whose display almost did not change during the entire test (except for the first very small change after seventeen hours of testing). Screen burn-in is visible on all phones (see image), but the iPhone is the best. In addition, if we take into account a somewhat unrealistic test scenario, iPhone X owners have nothing to worry about.

Source: Appleinsider

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