FILM FOR IMPROVING COLOR SENSE AND METHOD FOR PREPARING THE SAME

摘要

According to the present invention, a color enhancement film comprises a base layer, a high-refractive optical diffusion layer including an organic optical diffusion agent, a high-refractive resin layer, and a low-refractive resin layer in which a lenticular lens pattern is formed, which are sequentially stacked. The organic optical diffusion agent includes particles coated with black pigments and uncoated particles in a weight ratio range between 1:0.5 and 1:50. The lenticular lens pattern is formed on surface of the low-refractive resin layer which faces the high-refractive resin layer. A method for manufacturing the color enhancement film comprises the steps of: forming a high-refractive optical diffusion layer by coating a resin including a diffusion agent on one surface of a base layer and curing the coated resin; forming a high-refractive resin layer, in which a plurality of lenticular lenses are engraved, on one surface of the high-refractive optical diffusion layer; and forming a low-refractive resin layer having one surface on which an optical pattern is formed by coating a low-refractive transparent resin on the surface of the high-refractive resin layer with an optical pattern engraved thereon and curing the coated low-refractive transparent resin. According to the present invention, the color enhancement film has a small color sense variation according to a viewing angle, low external light reflectivity, and excellent optical transmittance and optical diffusivity, and the method for manufacturing the color enhancement film has excellent processability and high cost reduction.