Patent ID: 6720203
Filing Date: 2004-04-13
Classification: H01L,Y02E,Y10S,Y10T

Abstract:
A method for improving resistance to oxygen and moisture degradation of a flexible organic electronic device comprising at least one first electrical contact layer having a first electrical contact layer outer surface and an opposite first electrical contact layer inner surface, at least one active layer adjacent to the first electrical contact layer inner surface, the active layer comprising an organic active material, said active layer having a set of dimensions, and at least one second electrical contact layer having a second electrical contact layer outer surface and an opposite second electrical contact layer inner surface, wherein the second electrical contact layer inner surface is adjacent to the active layer, the method comprising the steps of:placing a first flexible composite barrier structure adjacent to the at least one first electrical contact layer outer surface, the first flexible composite barrier structure comprising at least one layer of a first polymeric film and at least one layer of a first barrier material, the first barrier structure having a first inner surface; placing a second flexible composite barrier structure adjacent to the at least one second electrical contact layer outer surface, the second flexible composite barrier structure comprising at least one layer of a second polymeric film and at least one layer of second barrier material, the second barrier structure having a second inner surface; wherein at least one of the first and second composite barrier structures is light-transmitting,sealing the first inner surface and the second inner surface together outside the dimensions of the active layer to envelop the active layer.