Gennes P G, Prost J. The Physics of Liquid Crystals[M]. Oxford: Oxford University Press, 1993:264-271.[2] Elston S, Sambles R. The Optics of Thermotropic Liquid Crystals [M]. London: Taylor & Francis, 1998:233-245.[3] 张天翼,许军,董佳垚. 胆甾型液晶显示技术和产业发展 [J]. 液晶与显示, 2011,26(6):741-745.[4] 黄维,边震宇,肖久梅,等. 具有宽波反射特性的手征向列相液晶的研究进展 [J]. 液晶与显示, 2009,24(3):322-332.[5] Broer D J, Lub J, Mol G N. Wide-band reflective polarizers from cholesteric polymer networks with a pitch gradient [J]. Nature, 1995, 378(6556): 467-469.[6] Mitov M, Boudet A, Sopena P. From selective to wide-band light reflection:a simple thermal diffusion in a glassy cholesteric liquid crystal [J]. Eur. Phys. J. B, 1999,8(3):327-330.[7] 李发胜,王磊,齐琳,等. 紫外吸收染料诱导的具有宽波反射特性的胆甾相液晶聚合物薄膜 [J]. 液晶与显示, 2011,26(5):573-576.[8] 何正红, 叶志成, 苏翼凯,等. 胆甾型液晶彩色滤光片分析 [J]. 液晶与显示, 2010,25(4):538-541.[9] Hu W, Zhao H, Song L, et al. Electrically controllable selective reflection of chiral nematic liquid crystal/chiral Ionic liquid composites [J]. Adv. Mater., 2010, 22(4):468-472.[10] Li L, Faris S M. Novel super broadband reflective polarizer [J]. Proceedings of SPIE, 1996, 2873(1):202-205.[11] Hikmet R A M, Kemperman H. Electrically switchable mirrors and optical components made from liquid-crystal gels [J]. Nature, 1998, 392(6675):476-479.[12] Lavernhe A, Mitov M, Binet C, et al. How to broaden the light reflection band in cholesteric liquid crystals? A new approach based on polymorphism [J]. Liq. Cryst., 2001, 28(5):803-807.[13] Yang H, Mishima K, Matsuyama K, et al. Thermally bandwidth-controllable reflective polarizers from (polymer network/liquid crystal/chiral dopant) composites [J]. Appl. Phys. Lett., 2003, 82(15):2407-2409.[14] Nouvet E, Mitov M. New optical memory effects in polymer-stabilized cholesteric liquid crystals due to pitch changes during the uv-curing [J]. Mol. Cryst. Liq. Cryst., 2004, 413(1):515-525.[15] Witte P V D, Brehmer M, Lub J. LCD components obtained by patterning of chiral nematic polymer layers [J]. J. Mater. Chem., 1999, 9(9):2087-2094.[16] Huang Y, Zhou Y, Wu S T. Broadband circular polarizer using stacked chiral polymer films [J]. Opt. Express, 2007, 15(10):6414-6419.[17] Guillard H, Sixou P. Active broadband polymer stabilized liquid crystals [J]. Liq. Cryst., 2001, 28(6):933-944.[18] Bian Z Y, Li K X, Huang W, et al. Characteristics of selective reflection of chiral nematic liquid crystalline gels with a nonuniform pitch distribution [J]. Appl. Phys. Lett., 2007, 91(20):201908(1-3).[19] Zografopoulos D C, Kriezis E E, Mitov M, et al. Theoretical and experimental optical studies of cholesteric liquid crystal films with thermally induced pitch gradients [J]. Phys. Rev. E, 2006, 73(6):061701(1-9).[20] Binet C, Mitov M, Boudet A. Bragg reflections in cholesteric liquid crystals:from selectivity to broadening and reciprocally [J]. Mol. Cryst. Liq. Cryst., 2000, 339(1):111-123.[21] Dyer D J, Schroder U P, Chan K P, et al. Polymer-stabilized reflective cholesteric displays: effects of chiral polymer networks on reflectance properties [J]. Chem. Mater., 1997, 9(7):1665-1669.[22] Nolan P, Parri O, May A, et al. 手性掺加剂:中国,CN1223657 [P]. 1999-07-21.[23] Kobayashi N, Hashimoto K, Hatano T. Cholesteric liquid crystal element having composite layer:United States,US6015507.2000-01-18.