Nippon Oil Company

Shigeki Takikawa

Takuya Matsumoto

Iwane Shiozaki

Hitoshi Mazaki

Yoshihiro Kumagai

A liquid crystalline polymer film useful as a high functional optical element is provided. Said liquid crystalline polymer film is formed on a substrate and having at least a tilt orientation fixed, and said tilt orientation is such that the angle between a director of said liquid crystalline polymer and a flat surface of said substrate is in the range of 5 to 85 degrees in terms of an average value.

Liquid crystalline polymer film, process for producing same, and

The present invention provides a novel liquid crystalline polyester comprising structural units represented by the following general formulae A, B, C and D: ##STR1## where X and Y are each independently H, Cl, Br or an alkyl group having 1 to 4 carbon atoms, the molar ratio of A/B is in the range from 49/1 to 20/30 and that of C/D is in the range from 10/40 to 45/5.

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Yokohama, Japan

Shigeki Takikawa