TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The gas barrier film further comprises a dispersion layer covering the cladding layers, which are disposed on a surface opposite to the gas barrier layer, where the dispersion layer is a nanomaterial comprising silicon oxide nanoparticle dispersions, titanium oxide nanoparticle dispersions, nickel nanoparticle dispersions, silver nanoparticle dispersions, carbon nanotube dispersions or clay nanoparticle dispersions. The gas barrier film has a transparency of larger than 85%. Preferred Components: The gas barrier layer is a non-volatile liquid, which is a lubricant, silicon oil, glycerol, ionic liquid, inedible soybean oil or volatile organic alcohol. The non-volatile liquid further comprises nanoparticles. The nanoparticle is silicon oxide nanoparticles, titanium oxide nanoparticles, nickel nanoparticles, silver nanoparticles, carbon nanotubes or clay nanoparticles. The liquid layer is a liquid colloid or a non-volatile liquid. The gas barrier layer has a viscosity of 1-1000 mPas. The gas barrier layer has a thickness of 20-100 mu m. The wet coating process comprises a bar coating process, a blade coating process, a roller coating process, a dip coating process, a spin coating process, a slot die coating process, a curtain coating process or a slide coating process. Preferred Method: The step of covering the other one of the cladding layers on the gas barrier layer is performed by adhesion. The method further comprises sealing spaces between layers of the cladding layers. The step of sealing the spaces between layers of the cladding layers is performed with a solid material, which is a metal material, an organic material or an inorganic material (preferred) or a UV curable resin.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The cladding layer comprises a substrate including polyethylene terephthalate, polyethylene naphtha late, polyether sulfone, polyimide, polycarbonate, Acrylite (RTM: Acrylic polymers), cyclic olefin copolymer, metal foil or flexible glass. The cladding layers comprise an adhesive containing a thermosetting or UV curable resin. The adhesive is UV curable resin comprising acrylic, epoxy, polyimide, polyester, polyurethane or silicone.