2NISHIAWA M, BESSHO N, NATSUI T, et al. A model of the unidirectional alignment accompanying the pretilt angle of a nematic liquid crystal ( NLC ), 5CB, oriented on rubbed organic-solventsoluble polyimide film[J]. Molecular Crystals and Liquid Crystals, 1996, 275: 15-25.
3SEONG H N, KOJL A, YOSHIO S, MANABU S. Polyamide-type high pretilt surface: effectof side-chain structure and type of liquid crystals on the generation of pretilt angle[J]. Molecular Crystals and Liquid Crystals, 1994, 241(1) : 159-166.
4BERNT O, MYRVOLD, KONBO K. The relationship between the chemical structure ofnematie liquid crystals and their pretilt angles [J]. Liquid Crystals, 1995, 18(2): 271-286.
