Especially in its early years, the remarkable concern of the OLED was its increased risk of retention of burns or image, on traditional retro-revered screens. Partly in part with the use of organic compounds, OLED panels can more easily degrade at different rhythms over time, which could potentially cause variations in brightness and colors.
Fortunately, OLED ignition is increasingly common in modern televisions for several reasons, including features such as screen savers, static image detection and other material methods to reduce and rectify image retention. Although Burn-in remains a light concern, it is not worth it to be considered for extremely high volume users like players who keep a static image on the screen for several hours (or days) at the same time. Even then, it is generally not permanent. For the most part, Oled Burn-in is not something to fear.
For more information on TV technology, quantum points at 4K, consult our guides on How to choose the right television (also linked above), How to configure your new TVAnd Hdror visit the “Useful definitions” section in our Best TVS guide For more information.