| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an evaluation method with which whether a traveling long optical anisotropic film can obtain desired optical characteristics can be measured in an in-line state, a measuring apparatus for enabling such an evaluation method, and a method of manufacturing the optical anisotropic film having the desired optical characteristics using a result of the evaluation. <P>SOLUTION: An evaluation method of an optical anisotropic film is provided. The method includes a step of radiating light in a direction being vertical to the optical anisotropic film and having an azimuth angle -5° to +5° and a polar angle θ<SB POS="POST">1</SB>(30°≤θ<SB POS="POST">1</SB>≤70°) with respect to an in-plane delay phase axial direction and in a direction having an azimuth angle θ<SB POS="POST">2</SB>(30°≤θ<SB POS="POST">2</SB>≤60°) and a polar angle θ<SB POS="POST">3</SB>(30°≤θ<SB POS="POST">3</SB>≤70°) with respect to the in-plane delay phase axial direction and measuring a change in transmission polarization state, respectively, and a step of comparing the measurement with a change in transmission polarization state obtained by performing the similar measurement on an optical anisotropic film having desired optical characteristics. <P>COPYRIGHT: (C)2012,JPO&INPIT |
