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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 12 — Jun. 6, 2011
  • pp: 11825–11831

Dual liquid crystal alignment configuration based on nanoparticle-doped polymer films

Andy Ying-Guey Fuh, Chen-Yu Huang, Cheng-Kai Liu, Yuan-Di Chen, and Ko-Ting Cheng  »View Author Affiliations

Optics Express, Vol. 19, Issue 12, pp. 11825-11831 (2011)

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This paper proposes an approach for producing dual liquid crystal (LC) alignment configuration based on nanoparticle-doped polymer films. Experimental results indicate that illuminating a nanoparticle-doped pre-polymer film, coated onto a substrate with a homogeneous alignment layer, with unpolarized UV light through a photomask causes the polymerization of pre-polymer, ultimately generating homogeneous and vertical alignment layers in unpolymerized and polymerized regions, respectively. The dual LC alignment configuration of the homogeneous (vertical) and hybrid alignments can be achieved by combining the treated substrate with another substrate that has a homogeneous (vertical) alignment layer. Additionally, the applications of the dual LC alignment layer in phase gratings and transflective LC displays are demonstrated.

© 2011 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.5470) Materials : Polymers

ToC Category:

Original Manuscript: March 23, 2011
Revised Manuscript: May 16, 2011
Manuscript Accepted: May 28, 2011
Published: June 2, 2011

Andy Ying-Guey Fuh, Chen-Yu Huang, Cheng-Kai Liu, Yuan-Di Chen, and Ko-Ting Cheng, "Dual liquid crystal alignment configuration based on nanoparticle-doped polymer films," Opt. Express 19, 11825-11831 (2011)

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  1. F. Li, O. Buchnev, C. I. Cheon, A. Glushchenko, V. Reshetnyak, Y. Reznikov, T. J. Sluckin, and J. L. West, “Orientational coupling amplification in ferroelectric nematic colloids,” Phys. Rev. Lett. 97(14), 147801 (2006). [CrossRef] [PubMed]
  2. A. Kumar, J. Prakash, D. S. Mehta, A. M. Biradar, and W. Haase, “Enhanced photoluminescence in gold nanoparticles doped ferroelectric liquid crystals,” Appl. Phys. Lett. 95(2), 023117 (2009). [CrossRef]
  3. W. Lee, C.-Y. Wang, and Y.-C. Shih, “Effects of carbon nanosolids on the electro-optical properties of a twisted nematic liquid-crystal host,” Appl. Phys. Lett. 85(4), 513–515 (2004). [CrossRef]
  4. C.-Y. Huang, H.-C. Pan, and C.-T. Hsieh, “Electrooptical properties of carbon-nanotube-doped twisted nematic liquid crystal cell,” Jpn. J. Appl. Phys. 45(No. 8A), 6392–6394 (2006). [CrossRef]
  5. S.-C. Jeng, C.-W. Kuo, H.-L. Wang, and C.-C. Liao, “Nanoparticles-induced vertical alignment in liquid crystal cell,” Appl. Phys. Lett. 91(6), 061112 (2007). [CrossRef]
  6. S.-J. Hwang, S.-C. Jeng, C.-Y. Yang, C.-W. Kuo, and C.-C. Liao, “Characteristics of nanoparticle-doped homeotropic liquid crystal devices,” J. Phys. D Appl. Phys. 42(2), 025102 (2009). [CrossRef]
  7. W.-Z. Chen, Y.-T. Tsai, and T.-H. Lin, “Photoalignment effect in a liquid-crystal film doped with nanoparticles and azo-dye,” Appl. Phys. Lett. 94(20), 201114 (2009). [CrossRef]
  8. W.-Z. Chen, Y.-T. Tsai, and T.-H. Lin, “Single-cell-gap transflective liquid-crystal display based on photo- and nanoparticle-induced alignment effects,” Opt. Lett. 34(17), 2545–2547 (2009). [CrossRef] [PubMed]
  9. T.-J. Chen and K.-L. Chu, “Pretilt angle control for single-cell-gap transflective liquid crystal cells,” Appl. Phys. Lett. 92(9), 091102 (2008). [CrossRef]
  10. K.-T. Cheng, C.-K. Liu, C.-L. Ting, and A. Y.-G. Fuh, “Electrically switchable and optically rewritable reflective Fresnel zone plate in dye-doped cholesteric liquid crystals,” Opt. Express 15(21), 14078–14085 (2007). [CrossRef] [PubMed]
  11. A. Y.-G. Fuh, J.-C. Chen, K.-T. Cheng, and S.-Y. Huang, “Polarization-independent and electrically tunable liquid crystal Fresnel lenses based on photoalignment in dye-doped liquid crystals,” J. Soc. Inf. Disp. 18(8), 572–576 (2010). [CrossRef]
  12. A. Y.-G. Fuh, J.-C. Chen, S.-Y. Huang, and K.-T. Cheng, “Binary liquid crystal alignments based on photoalignment in azo dye-doped liquid crystals and their application,” Appl. Phys. Lett. 96(5), 051103 (2010). [CrossRef]
  13. J. Pyun and K. Matyjaszewski, “Synthesis of nanocomposite organic/inorganic hybrid materials using controlled/‘living’ radical polymerization,” Chem. Mater. 13(10), 3436–3448 (2001). [CrossRef]
  14. A. Strachota, I. Kroutilova, J. Kovarova, and L. Matejka, “Epoxy networks reinforced with polyhedral oligomeric silsesquioxanes (POSS). thermomechanical properties,” Macromolecules 37(25), 9457–9464 (2004). [CrossRef]
  15. P. T. Mather, H. G. Jeon, A. Romo-Uribe, T. S. Haddad, and J. D. Lichtenhan, “Mechanical relaxation and microstructure of poly(norbornyl-POSS) copolymers,” Macromolecules 32(4), 1194–1203 (1999). [CrossRef]
  16. C.-J. Yu, J.-H. Park, J. Kim, M.-S. Jung, and S.-D. Lee, “Diffraction patterns of binary liquid crystal gratings in homeotropic and hybrid geometries,” Mater. Sci. Eng. C 24(1-2), 247–250 (2004). [CrossRef]
  17. C.-J. Yu, D.-W. Kim, J. Kim, and S.-D. Lee, “Polarization-invariant grating based on a photoaligned liquid crystal in an oppositely twisted binary configuration,” Opt. Lett. 30(15), 1995–1997 (2005). [CrossRef] [PubMed]
  18. J.-H. Park, C.-J. Yu, J. Kim, S.-Y. Chung, and S.-D. Lee, “Concept of a liquid-crystal polarization beamsplitter based on binary phase gratings,” Appl. Phys. Lett. 83(10), 1918–1920 (2003). [CrossRef]
  19. P. Yeh and C. Gu, Optics of Liquid Crystal Displays (John Wiley & Sons, Inc., 1999), Chap. 5.

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