The present invention relates to a device having a flexible organic electronic device comprising in the order listed:

• a) a 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,
• b) at least one first electrical contact layer,
• c) at least one active layer comprising an organic active material, said active layer having dimensions defined by a length and a width,
• d) at least one second electrical contact layer,
• e) a second flexible composite barrier structure comprising at least one layer of a second polymeric film and at least one layer of a 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 and the first and second composite barrier structures are sealed together to envelop the at least one active layer.