The PrintOLED (Printed Organic Light-Emitting Diodes) project was established to develop a concept large-area homogenous coating of organic functional materials from solution. The project investigate several technologies (such as gravure, inkjet printing, slot-die coating and others). When the projected ended, the partners demonstrated OLEDs with homogeneously coated active areas of 10 cm2 and 27 cm2 by classic gravure printing and slot die coating (at least two of the layers were processed from solution).

The project was led by Merck, and the other partners in PrintOLED were BASF, OSRAM, Philips, the Karlsruhe Institute for Technology, the Technical University of Braunschweig, the Technical University of Darmstadt and Heidelberger Druckmaschinen.

The project received around €5 million in funding from the German Federal Ministry of Education and Research (BMBF).