Disclosed are a plastic organic electroluminescent display device to realize flexibility and prevent visualization of exterior light and a method for fabricating the same. The plastic organic electroluminescent display device includes a light emitting cell including a first electrode, a light emitting organic layer and a second electrode arranged on a substrate in this order, a barrier film adhered to the substrate provided with the light emitting cell, to seal the light emitting cell, the barrier film including an optically isotropic support film, and a circular polarizer adhered onto the optically isotropic barrier film.