Nippon Hoso Kyokai NHK means Japan Broadcasting Corporation. It is Japan's sole nationwide public broadcasting corporation.

If you've seen the movie "Minority Report" and marvelled at the transparent computer screens used by Tom Cruise, you'll appreciate what German researchers have concocted in their labs: entirely transparent OLED (organic light emitting diode) pixels.

The researchers, located at the Technical University of Braunschweig, are claiming the development to be a world's first.