Anti-reflection film, method of producing the film and display device

An anti-reflection film comprising:

• a substrate and a resin layer on the substrate,
• the resin layer containing a plurality of cavities,
• the resin layer and the substrate having refractive indexes that are different from each other by 0.001 to 0.2,
• the resin layer including a base portion and a plurality of protrusions on the base portion,
• the plurality of protrusions being integrally formed with the base portion,
• the base portion having a thickness that varies at least in one direction in a region,
• the film further comprising a body that is different from the resin layer and the substrate,
• Newton rings being generated by synthetic waves of light reflected on an interface between air and the resin layer and an interface between the resin layer and the substrate,
• the body being in contact with the resin layer and present at the center of the Newton rings,
• the thickness of the base portion being greater at a site farther from the body within a region including the body, wherein
• the region where the thickness of the base portion is greater at a site farther from the body does not have another body that is different from the resin layer and the substrate and in contact with the resin layer.