VTT has developed a large-surface light-emitting plastic film
Based on OLED technology and implemented by means of a printing machine, this method developed by VTT Technical Research Centre of Finland Ltd provides an opportunity to create patterned and flexible light-emitting surfaces on advertising displays, info signs and lighting fixtures, for instance. The method also enables transparent smart surfaces to be attached to window panels or packaging. OLED technology (Organic Light-Emitting Diode) is commonly used in mobile phone displays and television sets, though until now has only been found in glass surfaces, implemented using traditional