| 摘要 |
<p>The present invention relates to a retardation film, and particularly, provides a retardation film that is useful for a 1/2lambda plate as well as a 1/4lambda plate and has good transparency, wherein the retardation film comprises a cyclo olefin polymer obtained by hydrogenating ring-opening polymerized polymers that are ring-opening polymerized from a mixture of tetracyclododecene derivatives and dicyclopentadiene.</p> |
