<http://schema.org/description>
"Apple on Tuesday was granted a patent for an invention that creates microperforations in a device so small as be imperceptible to the naked eye, but large enough to allow the passage of light, that can be used in concert with multitouch technology to create invisible device controls."^^<http://www.w3.org/2001/XMLSchema#string>
<http://appleinsider.com/articles/12/11/06/apple-tech-can-illuminate-invisible-touch-controls-displays>