Patent ID: 7858171

Claim:
A barrier film comprising a base material film and a barrier layer deposited on at least one side surface of the base material film, wherein the barrier layer comprises a water repellent layer and a dense layer, the water repellent layer is a silicon oxide carbide film having the atomic percent of Si 100 O 40-120 C 80-160 , and the thickness in a range of 2 to 300 nm, the dense layer is a silicon oxide carbide film having the atomic percent of Si 100 O 100-200 C 5-100 , and the thickness in a range of 5 to 300 nm, the base material film is a resin film having the thickness in a range of 5 μm to 500 μm, and the barrier layer is a silicon oxide carbide film comprising the water repellent layer, and the dense layer formed on the water repellent layer, with the atomic percent of O(oxygen) with respect to Si(silicon) increased continuously from the base material film side toward the outer side and the atomic percent of C(carbon) with respect to Si(silicon) reduced continuously from the base material film side toward the outer side.