abstract |
(57) [Problem] When a liquid crystal alignment film is used, a liquid crystal alignment film having good vertical alignment of liquid crystal, high voltage holding characteristics, low residual DC, and excellent printability can be formed. To provide a liquid crystal vertical alignment agent. SOLUTION: A liquid crystal vertical alignment agent comprising a polyamic acid and a polyimide having an organic group having a steroid skeleton derived from a diamine and having an imidation ratio of 40% or more in at least 10% of a repeating unit. |