Passive matrix and active matrix organic electroluminescent (EL) devices are fabricated by using a single mask which defines a deposition zone for depositing an organic EL medium layer and a cathode by directing respective vapor streams towards a substrate in the deposition zone. Electrically insulative...http://www.google.es/patents/US6348359?utm_source=gb-gplus-sharePatente US6348359 - Cathode contact structures in organic electroluminescent devices
Cathode contact structures in organic electroluminescent devices
