METHOD FOR MANUFACTURING LONG LAMINATED POLARIZING PLATE AND LONG LAMINATED POLARIZING PLATE

摘要

The purpose of the present invention is to provide a method for manufacturing a long laminated polarizing plate and a long laminated polarizing plate wherein a long polarizing film is directly applied to a long phase difference film. The long laminated polarizing plate is provided with a long phase difference film having a slow axis in the longitudinal direction and a long polarizing film having an absorption axis or a transmission axis at an angle of 25° to 65° in a plane relative to the slow axis of the long phase difference film. The method for manufacturing a long laminated polarizing plate comprises a step A of preparing a long phase difference film having the slow axis in the longitudinal direction and having an Nz coefficient of 1.5 or less, a step B of rubbing the long phase difference film obtained in the step A at an angle of 20° to 70° in the plane relative to the longitudinal direction while running the long phase difference film, and a step C of applying a solution of a liquid crystal compound in an isotropic phase to the rubbed surface of the long phase difference film obtained from the step B and solidifying the liquid crystal compound, thereby forming a long polarizing film with the oriented liquid crystal compound.