| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a retardation film which applies little load on an apparatus and has high yield upon the mass production or the continuous production, to provide a polarization plate having little light leakage and a high yield, and to provide a display device in which the unevenness of contrast and the durability is improved. <P>SOLUTION: In the method for manufacturing roll-like retardation film, an angle of the slow axis in the film face with the width direction of the film in the effective width of a roll-like film, is within the range of ±1° and an angle of the fast axis in the film face with the longitudinal direction of the film is within the range of ±1°. Therein, the angle of the fast axis in the film face with the longitudinal direction of the film is cyclically varied by a cycle of ≥1.5 m and ≤500 m in the longitudinal direction of the film and the minimum amplitude of the cycle is within the range of ≥0.1° and ≤1°. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
