Displays Might One Day Be Made Of Just Air And Water

Displays Might One Day Be Made Of Just Air And Water


The secret is a multi-level superhydrophobic surface that repels water and traps air, and was inspired by the extreme waterproof properties of the lotus leaf. The surface is actually covered with tiny posts, just 10 micrometers in size, that are each covered with even smaller nanofilaments. Using a precision nozzle that doubles as a printing head, the researchers are able to switch the surface between wet and dry, even though it’s submerged underwater the entire time. And as a result, they’re able to write and re-write complex designs and images like an inkjet printer does. Minus the atrocious price of ink, that is. [PNAS via Gizmag]