TU Delft develops revolutionary pixel

Together with Spanish graphene manufacturer Graphenea researchers of the TU Delft have found a new way to produce mechanical pixels using small, balloon-like structures. These pixels, which do not emit light themselves but are visible in sunlight, could lead to energy-efficient colour displays that can be used in devices such as e-books and smart watches.

The pixels are circular indents of about 13 micrometers wide, cut into silicon and covered by a double layer of graphene that is two atoms thick. this way the air is caught in the pixel and depending on the pressure put on the pixel it changes colour. The team is now working on a method to control the colour electrically.