Glossary A–ZLetter O
OLED
An OLED display (organic light-emitting diode) consists of pixels made of organic material that emit light themselves and need no backlight.
A switched-off pixel is therefore completely black. The displays can be built very thin, flexible or transparent.
In screen networks, OLED is seen mainly in showrooms, museums, hotel lobbies and high-end retail spaces, where deep black, strong colours and a slim design matter. Very thin devices can be mounted directly on the wall or set up free-standing as double screens. The viewing angle is wide and colours stay stable from the side.
Operators should know the limits: the pixels age differently depending on use, which is why static elements can lead to burn-in. The achievable brightness is usually lower than with high-brightness LCDs, so OLED is rarely suitable for sunny shop windows and outdoor use. Content should avoid fixed logos and bars or move them regularly. The manufacturer’s information on continuous operation should be checked carefully.