COLOUR displays that can be made using a simple “printing” process will
provide ultra-cheap video screens for the next generation of cellphones and
palmtops, say British researchers.
In London last week, a team from Cambridge Display Technology and Seiko Epson
of Nagano demonstrated the world’s first full-colour video screen to use arrays
of red, green and blue light-emitting polymers (LEPs). Unlike complex liquid
crystal displays, LEPs have a wide viewing angle. And because they need no
backlights, colour filters or polarisers, they are far simpler to make, says
CDT’s technical director Jeremy Burroughes, a member of the team that developed…
