Light-diffusing film and production method therefor, and display device
A light-diffusing film and light-diffusing layer technology, applied in the direction of identification devices, lighting devices, chemical instruments and methods, etc., can solve the problems of reduced visual recognition, low light diffusivity, dimness, etc., and achieve improved visual recognition, high-gloss Diffusion and less yellowness
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Embodiment 1
[0141] 12.5 parts by weight of an acrylic polymer having a polymerizable group, 4 parts by weight of cellulose acetate propionate, 150 parts by weight of an acrylic UV-curable compound A containing nano-silica, 1 part by weight of silicone acrylate, and 1 part by weight of initiator A and 1 part by weight of photoinitiator B were dissolved in a mixed solvent of 81 parts by weight of methyl ethyl ketone, 24 parts by weight of 1-butanol and 13 parts by weight of 1-methoxy-2-propanol. After casting this solution on a PET film using a wire bar #20, it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm. Then, the coating layer was irradiated with ultraviolet rays from a high-pressure mercury lamp for about 5 seconds to perform UV curing treatment to obtain a light-diffusing film.
Embodiment 2
[0143] 15.0 parts by weight of an acrylic polymer having a polymerizable group, 3 parts by weight of cellulose acetate propionate, 50 parts by weight of an acrylic UV-curable compound A containing nano-silica, 1 part by weight of silicone acrylate, and 1 part by weight of initiator A and 1 part by weight of photoinitiator B were dissolved in a mixed solvent of 101 parts by weight of methyl ethyl ketone and 24 parts by weight of 1-butanol. After casting this solution on a PET film using a wire bar #20, it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm. Then, the coating layer was irradiated with ultraviolet rays from a high-pressure mercury lamp for about 5 seconds to perform UV curing treatment to obtain a light-diffusing film.
Embodiment 3
[0145] 12.5 parts by weight of acrylic polymer having a polymerizable group, 4 parts by weight of cellulose acetate propionate, 209.3 parts by weight of acrylic UV-curable compound B containing nano-silica, 1 part by weight of silicone acrylate, optical 1 part by weight of initiator A and 1 part by weight of photoinitiator B were dissolved in a mixed solvent of 31 parts by weight of methyl ethyl ketone, 25 parts by weight of 1-butanol and 12 parts by weight of 1-methoxy-2-propanol. After casting this solution on a PET film using a wire bar #20, it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm. Then, the coating layer was irradiated with ultraviolet rays from a high-pressure mercury lamp for about 5 seconds to perform UV curing treatment to obtain a light-diffusing film.
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