| 摘要 |
A liquid crystal-aligning film affording a high pretilt angle and capable of realizing a liquid crystal display for STN mode having a superior display quality and a liquid crystal display element including such film are provided, which film comprises as its main component, a polyimide having a structural unit expressed by the formula <IMAGE> wherein R1 to R6 each are H or 1-22C alkyl and may be the same as or different from one another, Y is <IMAGE> R7 to R14 ; each are H or 1-3C alkyl and may be the same as or different from one another and Ar is a tetravalent aromatic group.
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