ポリイミド配向膜上の流動配向とプレチルト角の関係

抄録

Pretilt angles and their tilt directions in the flow aligned nematic liquid crystal (LC) cells coated with PI alignment lavers are measured bv a crvstal rotation method and magnetic null method. Very low or 0 pretilt angles are observed in the LC cells prepared using lower pretilt PI layers. On the other hand, high pretilt angles more than 10〜20° are obtained in the LC cell prepared using high pretilt PI layers and the molecular orientation becomes a bend structure.