Researchers from the Karlsruhe Institute of Technology (KIT) have produced displays that have been biodegradability certified and checked by independent auditors

The construction materials are of natural origin or biocompatible and are sealed with gelatin making the display adhesive and flexible so it can be worn directly on the skin. This sort of display is particularly well-suited for short-lifecycle applications in sectors like medical diagnostics. The technology could also be used to monitor food packaging where reuse isn’t permitted.

Scientists believe this is the first demonstration of a biodegradable display produced using inkjet printing.

https://www.slashgear.com/researchers-create-biodegradable-flexible-displays-for-skin-28657194/