Researchers at the Fraunhofer FEP institute developed a new wearable OLED-based "button" that can be integrated into textiles. The OLEDs can be designed in any shape, be transparent, dimmable and also patterned. There is also a two-color variant.
The Fraunhofer develops say that such elements can be used for fashion trends, branding, safety applications, light therapy and more. The so-called O-Button is based on an OLED deposited on a wafer-thin foil combined with a microcontroller on a conventional circuit board.