Method for preparing eye-protecting screen protector

A method for preparing an eye-protecting screen protector, comprising the following steps:

• (S1) raw material preparation:
• mixing inorganic nanoparticles surface-modified with hydroxyl ligands with a cross-linking material to allow binding between first functional groups of the cross-linking material and hydroxyl groups on the surfaces of the inorganic nanoparticles;
• dispersing nano-luminescent materials in acrylate monomers, adding the resulting mixture to the nanoparticle-crosslinking material system, enabling binding between second functional groups of the cross-linking material and the nano-luminescent materials, to form modified nanoparticles;
• (S2) adhesive mixing:
• dispersing the modified nanoparticles from step (S1) in an optically clear adhesive (OCA) matrix material, adding a photoinitiator and mixing evenly;
• (S3) coating and curing:
• coating the mixed adhesive solution from step (S2) onto the surface of a polyethylene terephthalate (PET) substrate with a pre-applied silicone layer, and then curing the coated substrate with ultraviolet light to form a light conversion layer;
• and
• (S4) glass lamination:
• laminating tempered glass on the surface of the light conversion layer, and then precision-cutting the resulting composite structure to obtain an eye-protecting screen protector;
• wherein the inorganic nanoparticles and the nano-luminescent materials are cross-linked after UV curing to form a dense microscopic isolation protection structure.