偏光紫外線照射ポリイミドによるネマティック液晶のプレティルト角を持った配向

抄録

Positive-type polyimide, exposed to linearly polarized deep UV(DUV) light (257 nm), induced nematic liquid crystals' homogeneous alignment with small pre-tilt angle. A two stage exposure was introduced to establish a pre-tilt angle. A tilted alignment mechanism was explained by anisotropic photo-depolymerization of polyimide side chains.