| abstract |
A production member for efficiently producing a retardation film capable of highly optically compensating for a retardation due to birefringence of a liquid crystal cell is provided. In a production of a retardation film, a retardation film is obtained by shrinking a thermoplastic resin film, and is a long member used for imparting a shrinkage force by heating to the thermoplastic resin. The shrinkage force T 160 (TD) in the width direction at 160 ° C. is in the range of 0 to 1.3 N / 2 mm, and the shrinkage force T 140 (TD) in the width direction at 140 ° C. is 0.2 to 1.2 N / 2 mm. A shrinkable film having a shrinkage ratio S 160 (MD) in the longitudinal direction at 160 ° C. of 13% or less and a shrinkage ratio S 160 (TD) in the width direction at 160 ° C. of 24% or less, It is a member for phase difference film manufacture provided with the adhesive layer of thickness 1-30 micrometers laminated | stacked on this shrinkable film. [Selection figure] None |