High-efficiency light diffusing polymeric film and manufacturing method thereof

摘要

The present invention generally relates to a high-efficiency light diffusing polymeric film and a manufacturing method thereof, and more specifically, to a high-efficiency light diffusing polymeric film which ensures a high level of light transmittance and light diffusion compatibly and which can be manufactured by a relatively simple method such as coating or extrusion, and a manufacturing method thereof. The high-efficiency light diffusing polymeric film of the present invention comprises a first polymer which is a light transmissible medium and a second polymer which forms light scattering particles, as two different immiscible polymers that have a small refractive index difference of 0.001 to 0.5, and the polymeric film comprises 30 to 70 parts by weight of the second polymer with respect to 100 parts by weight of the first polymer. The method for manufacturing a high-efficiency polymeric film is characterized in that the polymeric film is manufactured such that a first polymer forms a continuous phase and a second polymer forms a dispersed phase through coating or extrusion.