| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for evaluating crack resistance quantitatively and simply with excellent repeatability, concerning a strength evaluation method for a resin sheet. SOLUTION: This strength evaluation method for the resin sheet is characterized by using a member having a prescribed shape such as a cylindrical body, winding the resin sheet on the outside of the member, and evaluating the crack resistance of the resin sheet. In this case, the resin sheet is preferably a polarizing plate with an optical compensation layer formed by sticking the optical compensation layer comprising a material immobilized by polymerization to the polarizing plate. In addition, a plurality of similar-shaped bodies having different dimensions are preferably used respectively as the member. COPYRIGHT: (C)2005,JPO&NCIPI
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