PET-film-bonded type transparent anti-UV projection screen and production method therefor

A polyethylene terephthalate-file-bonded type transparent anti-UV projection screen, comprising:

• a polyethylene terephthalate film layer,
• an adhesive layer, and
• a transparent supporting layer,
• wherein said polyethylene terephthalate film layer, said adhesive layer, said transparent supporting layer are sequentially stacked from top to bottom,
• wherein said polyethylene terephthalate film layer is prepared by uniformly mixing polyethylene terephthalate resin, an antioxidant, a light stabilizer and a nanoparticle dispersion in a molten state, pre-crystallizing and drying the mixture, and then extruding, stretching and molding the mixture, the nanoparticle dispersion is prepared by uniformly mixing nanoparticles, a dispersant and a solvent, and then dispersing the mixture with ultrasonic waves, and the distribution density of the nanoparticles in said polyethylene terephthalate film layer is 0.008 to 1.6 g/mm·m2, and
• wherein the nanoparticles are comprised of titanium dioxide nanoparticles and inorganic salt nanoparticles with a mass ratio of (1-81):9, and the titanium dioxide nanoparticles have a diameter of 20 to 100 nm, and the inorganic salt nanoparticles have a diameter of 100 to 300 nm.