Molecules that convert heat into light

摘要

Electronic displays are almost ubiquitous, not least because they are the means by which people interact with the Internet. The mobile display market has seen tremendous growth1, for example, with more than 1 billion mobile phones being sold in 2006. Liquid-crystal displays are a dominant technology for display applications, but organic light-emitting diodes (OLEDs) have steadily been incorporated into mobile devices and are increasingly being used in televisions. On page 234 of this issue, Uoyama et al.2 report a type of OLED that may offer an alternative to its conventional equivalents.