The ultra-thin displays (pictured) will be powered by printable batteries or antennas. Siemens is working with a production partner to integrate the screens into the packaging and production process.

The displays are produced using electrochromic substances that change colour when the electrical voltage placed through them changes. The aim of the project is to find a way of printing the entire display and control electronics using conductive and semi-conductive plastics.

The firm hopes the first displays will become available in 2007. Some of the first possible uses for the screen, which was unveiled at a technology show last week, will be to show instructions and promotions on food and pharmaceutical packaging, and addtional information on admission tickets.