An amorphous electrically conductive oxide such as In--Zn--O-containing amorphous oxide or amorphous ITO is used alone, or a laminate having a two- or three-layer structure constituted of the amorphous electrically conductive oxide and at least a thin metal layer is used, to form a transparent electrode...http://www.google.de/patents/US6280861?utm_source=gb-gplus-sharePatent US6280861 - Organic EL device
