| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a polarization plate capable of improving adhesion between a polarization film and a cycloolefin resin film. <P>SOLUTION: The polarization plate is a film laminate including polarization film of a polyvinyl alcohol resin laminated with an acetic acid cellulose resin film on one surface and a cycloolefin resin film on the other surface being interposed by an adhesive layer. The manufacturing method of the polarization plate includes a step to press the film laminate by passing through between a pair of sticking rolls which are disposed facing each other with a center-to-center distance of L (μm). Defining the maximum value of the center-to-center distance of the sticking rolls at which a triacetyl cellulose film of 40 μm in thickness, which is sandwiched between the pair of the sticking rolls, maintains the position without moving when a tensile force of 100 N/m is applied thereto in a direction perpendicular to an axis direction of the sticking rolls as reference center-to-center distance L<SB POS="POST">0</SB>(μm), the center-to-center distance L satisfies a formula :L<SB POS="POST">0</SB>-L≤600. <P>COPYRIGHT: (C)2013,JPO&INPIT |
