TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The layer (Ba) and layer (Bb) comprises zinc as main component. The layer (Bc) comprises compound chosen from silicon, aluminum, titanium, zirconium, and chromium, preferably silicon. The layer (Ba) comprises layer (Ba1) or layer (Ba2). The layer (Ba1) comprises coexistence phase of zinc oxide-silicon dioxide-aluminum oxide. The layer (Ba2) comprises coexistence phase of zinc sulfide and silicon dioxide. The layer (Ba1) comprises 20-40 atomic% zinc, 5-20 atomic% silicon, 0.5-5 atomic% aluminum, and 35-70 atomic% oxygen measured by inductively coupled plasma emission spectrochemical analysis. The molar ratio of zinc sulfide in layer (Ba2) with respect to total content of zinc sulfide and silicon dioxide is 0.7-0.9. The gas-barrier film further contains transparent conductive layer provided on the surface of layer (B). The transparent conductive layer contains indium-tin oxide, zinc oxide, aluminum-containing zinc oxide, gallium-containing zinc oxide, metal nanowire, or carbon nanotube. Preferred Properties: The density of layer (Ba) is higher than the density of layer (Bc). The density of layer (Ba) is 3.9-4.6 g/cm3. The density of layer (Bb) is 0.1-4 g/cm3, preferably 0.1-2 g/cm3, more preferably 4-5.8 g/cm3. The density of layer (Bc) is 2-5.5 g/cm3, preferably 2-2.6 g/cm3, more preferably 3.5-5.5 g/cm3. The surface free energy of the undercoat layer (A) is 10-45 mN/m, preferably 10-30 mN/m. The average surface roughness of the layer (A) is 1 nm or less.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The side chain contains at least dimethylsiloxane skeleton and/or fluorine atom-containing skeleton.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The acrylic resin is obtained by copolymerizing macromonomer chosen from macromonomer (i) having radical polymerizable group in monoterminal of acrylic polymer, macromonomer (ii) having radical polymerizable group in monoterminal of polymer with dimethylsiloxane skeleton and macromonomer (iii) having radical polymerizable group in monoterminal of polymer with fluorine atom, preferably the macromonomer (ii) and macromonomer (iii). The acrylic resin is obtained by adding 3-8 parts mass macromonomer with respect to 100 parts mass of acryl-type monomers comprising 1-8 %mass methacrylic acid, 5-16 %mass methacrylic acid 2-hydroxyethylmethacrylate and/or 76-94 %mass methacrylic acid dicyclopentanyl.