TRANSLUCENT MATERIAL DISPLAYING ULTRA-LOW TRANSPORT OF GASESAND VAPORS, AND METHOD FOR ITS PRODUCTION

摘要

An improved transparent support substrate in an organic light emitting diode (OLED) device comprises an organic polymer support film and a composite layer on the support film which is disposed intermediate the support film and the diodes of the OLED; the composite layer has first and second discrete coating layers bonded together in opposed facing relationship; the layers are of material impermeable to oxygen and water vapor but contain inadvertent discontinuities which result in discontinuity-controlled permeation of oxygen and water vapor.