'floating pixels' using soundwaves and force fields
The Interact Lab of the University of Sussex presents a technology that provides a mid-air reflective display using levitated Janus objects, which have different physical properties on different facets, that are electro-rotated to present different information for physical visualization, and improve the user experience with mid-air displays. http://dx.doi.org/10.1145/2984511.2984549 http://interact-lab.com/projects/joled/
the research opens up new possibilities for mobile and game designers, giving them a new way of representing digital information in a physical space.
Source: Scientists create 'floating pixels' using soundwaves and force fields