It’s not a feature you really care about when buying a new TV. However, any OLED screen, as beautiful and qualitative as it is, may be a victim of “burn-in”. Understand screen burn. Your television will obviously not catch fire, but part of your screen may die.
To better understand this phenomenon, you must first know how an OLED screen works. Basically, these are diodes that will light up when an electric current is sent to them. For this kind of panel, no need for a backlight device since here, each pixel becomes a light source. This is its advantage, but also where the “burn-in” phenomenon comes in: if an element of your image is displayed for a very long time in a fixed and permanent way (the logo of a channel for example), the pixels placed this place will abnormally “age” and become practically useless. “An OLED display deteriorates over time, but with normal use this happens gradually and the user doesn’t notice it. But with extreme use, like always watching the same TV channel with a static logo, the affected part of the screen will deteriorate faster than the rest of the panel,” says Danny Tack, Senior Director Product Strategy & Planning at TP Vision (which deals in particular with Philips televisions, editor’s note).
As pointed out, this phenomenon will only occur in “extreme” situations, namely prolonged viewing of the same channel. And impossible to quantify this since many elements can impact burn-in. “The intensity, the color of the logo (certain colors increase the risk, nldr), the number of successive broadcasting hours, the ambient temperature of the room, whether or not the television can carry out its cleaning processes. »
How to avoid it?
Suffice to say, this problem only concerns a tiny part of users. But the risks exist, especially for gamers who chain hours on a game or people who watch the same channel continuously. “Those who watch Netflix on a loop, for example, are less concerned since there are no static images”, specifies Danny Tack.
The advice is therefore simple to avoid the risk of burn-in: avoid long sessions with fixed images (a logo, a scoreboard) and remember to put your television on standby (and not turn it off directly) after long hours of viewing, standby allows a kind of “cleaning” of the screen. Manufacturers also offer technological solutions to reduce the occurrence of the phenomenon. This is the case of Philips in particular, which offers an algorithm based on artificial intelligence which makes it possible to detect, preventively, static images. “Our technology is really effective. When a still image is detected, it reduces the intensity of that part without compromising the quality of the rest of the image. A service that allows the brand to delay the appearance of wear for up to ten times longer.
The question now is whether to buy a television that offers these kinds of anti-burn-in features. The answer that emerges is ultimately to know your uses. An “ordinary” user, who watches television for about 4 hours a day, changing channels regularly, will not really need it. For those who chain long gaming sessions, it is not uninteresting to think about it to avoid having to quickly change screens. While respecting the basic advice (particularly standby) to use their television as a good father. Because ultimately, even with anti-burn-in technology, the warranty will only cover you if you have followed the basic instructions!