| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for production of a polarizing film having a high dichroic ratio. <P>SOLUTION: The method for production of the polarizing film comprises the following steps (1) to (3): (1) preparing a solution which has an electric conductivity of 50 μS/cm or less (as measured at a concentration of 0.05 wt.%), contains a dichroic dye and a solvent, and shows a lyotropic liquid crystallinity; (2) providing a substrate, wherein at least one surface of the substrate is hydrophilized; and (3) coating the hydrophilized surface of the substrate provided in the step (2) with the solution prepared in the step (1) at a coating speed of 100 mm/s or higher and then drying the coating. <P>COPYRIGHT: (C)2008,JPO&INPIT |
