Abstract

We investigated the dependence of the retardation dispersion on the polarization direction of ultraviolet (UV) light during the photopolymerization of self-organized smectic reactive mesogen (RM) molecules. RM retarder film that was photopolymerized with UV light linearly polarized parallel to the layer plane showed negative dispersion (ND) of retardation for a wide range of UV polymerization temperatures. On the other hand, film that was photopolymerized with unpolarized UV light showed negative dispersion in a narrow range of UV polymerization temperatures. With a certain UV polymerization temperature, the dispersion of retardation was converted from positive to negative, depending on the UV polarization.

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  2. A. Uchiyama and T. YatabeControl of wavelength dispersion of birefringence for oriented copolycarbonate films containing positive and negative birefringent unitsJpn. J. Appl. Phys.20034269416945
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  11. K. Osato and T. KobayashiNovel 1/4-wave plate film for OLED panelsSID Int. Symp. Digest201516871690
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  13. A. K. Srivastava, S. Yang, and J.-H. LeeNegative dispersion retarder using two negative birefringence filmsOpt. Express2015231310813114
  14. S. Yang, H. Lee, and J.-H. LeeNegative dispersion retarder with a wide viewing angle made by stacking reactive mesogen on a polymethylmethacrylate filmOpt. Eng.201655027106
  15. T. Danjo, Y. Enomoto, H. Shimada, S. Nobukawa, M. Yamaguchi, and T. IwataZero birefringence films of pullulan ester derivativesSci. Reports20172746432
  16. E. Beltran, I. Gardiner, and M. GoebelCoatable optical films for advanced displaysSID Int. Symp. Digest2017790792
  17. J. Jeong, Y.-J. Choi, K.-U. Jeong, and J.-H. LeeConversion of retardation dispersion in self-organized smectic reactive mesogen compound and its dependence on the UV polymerization temperature and the molecular orientationOpt. Express201826325903
  18. D. Voloschenko, O. P. Pishnyak, S. V. Shiyanovskii, and O. D. LavrentovichEffect of director distortions on morphologies of phase separation in liquid crystalsPhys. Rev. E200265060701R
  19. K.-S. Kim and J.-H. LeeHybrid alignment induced by asymmetric photopolymerization of liquid crystal-reactive mesogn composition betwen two plastic substratesJpn. J. Appl. Phys.201150051701
  20. T.-H. Yoon and J.-H. LeeEffect of the polarisation direction and incident angle of a UV light on the electro-optical response of the polymer-stabilised vertically aligned in-plane switching liquid crystalLiq. Cryst.201441920926

Other (20)

P. Yeh and C. GuOptics of Liquid Crystal DisplaysJohn Wiley and SonsUSA1999242247

A. Uchiyama and T. YatabeControl of wavelength dispersion of birefringence for oriented copolycarbonate films containing positive and negative birefringent unitsJpn. J. Appl. Phys.20034269416945

A. Uchiyama, Y. Ono, Y. Ikeda, H. Shuto, and K. YahataCopolycarbonate optical films developed using birefringence dispersion controlPoly. J.2012449951008

O. Parri, G. Smith, R. Harding, H.-J. Yoon, I. Gardiner, J. Sargent, and K. SkjonnemandPatterned retarder films using reactive mesogen technologyProc. SPIE20117956111

H. Lee and J.-H. LeeNegative dispersion of birefringence in two-dimensionally self-organized smectic liquid crystal and monomer thin filmOpt. Lett.20143951465149

S. Yang, H. Lee, and J.-H. LeeNegative dispersion of birefringence of smectic liquid crystal-polymer composite: dependence on the constituent molecules and temperatureOpt. Express20152324662471

J. Hwang, S. Yang, Y.-J. Choi, Y. Lee, K.-U. Jeong, and J.-H. LeeSingle layer retarder with negative dispersion of birefringence and wide field-of-viewOpt. Express201624268760

T.-H. Yoon, G.-D. Lee, and J. C. KimNontwist quarter-wave liquid-crystal cell for a high-contrast reflective displayOpt. Lett.20002515471549

A. Geivandov, A. Lazarev, P. Lazarev, and S. PaltoNegative dispersion retarder for 3D TV applicationsInternational Display Workshop2010265267

Y. Takahashi, Y. Furuki, S. Yoshida, T. Otani, M. Muto, Y. Suga, and Y. ItoA new achromatic quarter-wave film using liquid-crystal materials for anti-reflection of OLEDsSID Int. Symp. Digest2014381384

K. Osato and T. KobayashiNovel 1/4-wave plate film for OLED panelsSID Int. Symp. Digest201516871690

S. Shen, J. She, and T. TaoOptimal design of achromatic true zero-order waveplates using twisted nematic liquid crystalJ. Opt. Soc. A.200522961

A. K. Srivastava, S. Yang, and J.-H. LeeNegative dispersion retarder using two negative birefringence filmsOpt. Express2015231310813114

S. Yang, H. Lee, and J.-H. LeeNegative dispersion retarder with a wide viewing angle made by stacking reactive mesogen on a polymethylmethacrylate filmOpt. Eng.201655027106

T. Danjo, Y. Enomoto, H. Shimada, S. Nobukawa, M. Yamaguchi, and T. IwataZero birefringence films of pullulan ester derivativesSci. Reports20172746432

E. Beltran, I. Gardiner, and M. GoebelCoatable optical films for advanced displaysSID Int. Symp. Digest2017790792

J. Jeong, Y.-J. Choi, K.-U. Jeong, and J.-H. LeeConversion of retardation dispersion in self-organized smectic reactive mesogen compound and its dependence on the UV polymerization temperature and the molecular orientationOpt. Express201826325903

D. Voloschenko, O. P. Pishnyak, S. V. Shiyanovskii, and O. D. LavrentovichEffect of director distortions on morphologies of phase separation in liquid crystalsPhys. Rev. E200265060701R

K.-S. Kim and J.-H. LeeHybrid alignment induced by asymmetric photopolymerization of liquid crystal-reactive mesogn composition betwen two plastic substratesJpn. J. Appl. Phys.201150051701

T.-H. Yoon and J.-H. LeeEffect of the polarisation direction and incident angle of a UV light on the electro-optical response of the polymer-stabilised vertically aligned in-plane switching liquid crystalLiq. Cryst.201441920926

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