| 摘要 |
The invention provides a vertical alignment type liquid crystal aligning agent and vertical alignment type liquid crystal display unit with superior vertical alignment and anti printing. The vertical alignment type liquid crystal aligning agent contains polyamic acid or imidization polymers with tetracarboxylic dicarboxylic anhydridesn selectived from such as benzophenone tetracarboxylic class containing aromatic ketone structure and phenylene diamine structure with steroid framework, fluorin atom or straight chain alkyl substituent with 1~22 of carbon atoms. |
