Light conversion adhesive film with three-layer structure and preparation method thereof

The invention discloses a light conversion adhesive film with a three-layer structure and a preparation method of the light conversion adhesive film. The light conversion adhesive film is formed by sequentially laminating a first light conversion layer, a high ultraviolet scattering layer and a second light conversion layer; the first light conversion layer and the second light conversion layer are respectively formed by doping a cross-linking agent, an assistant cross-linking agent, a coupling agent and light conversion powder in matrix resin; the scattering layer is formed by doping matrix resin with a cross-linking agent, an assistant cross-linking agent, a coupling agent and nanoparticles; the light conversion capability of the second light conversion layer is 1.5-3.0 times that of the first light conversion layer; the light conversion adhesive film enables the average transmittance of ultraviolet light with the wave band below 400 nm to be not larger than 3% after the ultraviolet light passes through the