| 摘要 |
<p>The present invention relates to a photoalignment polymer which can provide a crystal liquid cell showing excellent photo-alignment property, thermal stability, and alignment stability and having excellent voltage retention rate, and to a liquid crystal alignment film comprising the same. The photoalignment polymer comprises one or more types of a specific polyimide-based repeat unit in which a certain photoreaction group is bonded to a main chain, or a polyamic acid or ester-based repeat unit.</p> |
