Carnegie Mellon University researchers came up with a touch-sensitive paper that could be the cheapest way to digitize writing – just $0.30 per sheet.
To achieve this, the researchers added conductive materials to regular paper: a carbon-loaded plastic sheet adheres to the paper and carbon loaded paint that can be sprayed on.
Once you attach a sensor board to the paper with the conductive layers, you get a digital sheet that really allows you to be creative.
Touch it with a finger, a pen or a stylus, and it essentially becomes a “Moleskine” version of a Kindle. The researchers demonstrated a few applications, from grading tests to improving a board game.
“We believe this illuminates one possible approach for achieving low-cost, interactive, paper-based experiences in the future,” they said.