| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative C-plate provided with a superior compensation effect and an optical compensation film equipped with the same which are simple in manufacturing process and low in cost. <P>SOLUTION: The negative C-plate is composed of bridge product of polyvinyl alcohol having polymerization degree of 2,000 to 5,000 with bridge agent, and by having a thickness of 5 to 60 μm and an optical axis in substantially parallel to the normally incident light, and a phase difference value of ≥60 nm along the thickness direction. The optical compensation film is characterized by providing the negative C-plate. <P>COPYRIGHT: (C)2010,JPO&INPIT |
