Melt extrusion type polarizing film

According to the present invention, the resin containing the dichroic dye is dispersed in the thermoplastic resin through the melt extrusion process, and the dichroic dye is aligned through the dry drawing process; the present invention relates to a polarizing film in which a resin containing an aligned dichroic dye is continuously or discontinuously dispersed in a thermoplastic resin in a needle shape in a certain direction, and a method for manufacturing the polarizing film. This resin composition containing a polarizing functional substance is dispersed in another resin, and a polarizing film can be produced by melt extrusion without the need for attaching another protective film to the surface layer of the polarizing film. In addition, the polarizing functional material is uniformly dispersed in the resin, thereby facilitating the improvement of substances such as spots of the polarizing film. Factors such as environmental pollution and the like can be greatly improved through a melt extrusion type manufa