A simple driver circuit used for an organic electroluminescent (EL) device comprises a transparent substrate on which an anode, at least one organic layer, and a cathode are formed. The anode is made of a transparent conductive material. The cathode is made of a conductive metal material. The driver...http://www.google.de/patents/US6316879?utm_source=gb-gplus-sharePatent US6316879 - Driver circuit for organic electroluminescent display
