Now we hear that another UK company is trying to do a similar thing, Polymertronics. They are also working on OLED-light-plasters, which will be used in photodynamic therapy - applying light sensitive drugs, which are activated when red-light is present. The drugs are supposed to destroy the tumors in the skin.
Polymetronics already showed that the OLEDs are working in the laboratory, and will soon begin human trials. They hope to launch the plasters as commercial products in two years.