OLEDs are a tough business to be in and the leaders are investing huge amounts of money to get on top of the fragile chemistry. Although versions sandwiched in glass are selling well, profits are a long way off. The advent of mass produced, flexible, low cost versions, particularly wide area types with long life, keeps slipping further into the future. Yet these are the largest potential market because they enable many exciting new product concepts to be realised rather than replacing existing displays in familiar devices. Although over 200 organisations started to develop OLEDs we now have at...