There is provided a thin film forming apparatus for precisely forming a film of an organic EL material made of a polymer without a positional deviation and at a high throughput. A pixel portion is divided into a plurality of pixel lines by banks, and a head portion of the thin film forming apparatus...http://www.google.de/patents/US20090186439?utm_source=gb-gplus-sharePatent US20090186439 - Thin Film Forming Apparatus