Novel gas barrier films prepared by transfer printing method

We have developed transfer printing method to achieve flatter surface required for gas barrier film. We developed 2 types of thin gas barrier films by this method. One is gas barrier film with thinner substrate and the other is substrate less gas barrier film. Especially, substrate less barrier film's total thickness is only 6μm and it showed high manufacturing process adaptability for OLED fabrication procedure with our encapsulation adhesive sheets. The substrate less barrier film (6 μm)/ adhesive sheet (12 μm) composite showed high flexibility, WVTR value did not change after 10,000 cycle of 4 mm diameter bending test. Besides, OLED device with the composite was demonstrated.