An anti-blue-
ray protective film comprises a transparent substrate, an anti-blue-
ray layer and a hardening protective layer, wherein the anti-blue-
ray layer and the hardening protective layer are sequentially laminated; the anti-blue-ray layer is prepared by
coating with a
coating solution and then carrying out
thermal curing, the
coating solution comprises the following components in parts by weight: 2-10 parts of thermosetting resin, 0.5-3 parts of nano
metal oxide, 80-98 parts of an
organic solvent, 0.3-1.6 parts of a dispersing agent and 0.4-1.1 parts of a curing agent; the difference between the
refractive index of the nano
metal oxide and the thermosetting resin is 0.1-1.3, the
viscosity of the thermosetting resin is 5000 cps-10000 cps, parameters in curing are successively as follows: in the first step, the curing temperature is 40 DEG C-60 DEG C, and the
curing time is 1 min-5 min; in the second step, the curing temperature is 60 DEG C-90 DEG C, and the
curing time is 1 min-5 min; in the third step, the curing temperature is 90 DEG C-110 DEG C, and the
curing time is 1 min-5 min; in the fourth step, the curing temperature is 110 DEG C-150 DEG C, and the curing time is 1 min-3 min. According to the invention, an internal structure in which a high
refractive index is matched with a low
refractive index is formed, so that the
transmittance of blue ray with the
wavelength of 400 nm-450 nm is less than 40%, and a good anti-blue-ray effect is achieved.