| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical film with reduced retardation, humidity dependency of retardation, light unevenness, and change in dimensions. <P>SOLUTION: An optical film contains an additive and cellulose ester. The optical film contains 30 mass% or more of the additive relative to the cellulose ester, has the tension elastic modulus of less than 3.0 GPa, and exhibits change in dimensions of 3% or less after being treated at 60°C and RH of 90% for 24 hours. <P>COPYRIGHT: (C)2013,JPO&INPIT |
