OSA's Digital Library

Optics Express

Optics Express

  • Vol. 16, Iss. 16 — Aug. 4, 2008
  • pp: 12220–12226

Electro-optical characteristics of a chiral hybrid in-plane switching liquid crystal mode for high brightness

Jin Seog Gwag, Kyunghwa Sohn, Young-Ki Kim, and Jae-Hoon Kim  »View Author Affiliations

Optics Express, Vol. 16, Issue 16, pp. 12220-12226 (2008)

View Full Text Article

Enhanced HTML    Acrobat PDF (446 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We propose a new in-plane switching (IPS) nematic liquid crystal (LC) mode which uses a twist effect with a hybrid LC alignment and interdigitated electrodes as an approach for a high brightness. This is optimized to a normally white mode to minimize loss of transmittance at the electrode compared to the conventional IPS mode. The proposed mode shows an excellent dark state because the bulk LCs are aligned in parallel to the optic axis of the polarizer under low electric fields. Consequently, this proposed mode exhibits a much higher contrast ratio (980:1) than that of the conventional IPS mode (550:1).

© 2008 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: May 15, 2008
Revised Manuscript: July 25, 2008
Manuscript Accepted: July 28, 2008
Published: July 31, 2008

Jin Seog Gwag, Kyunghwa Sohn, Young-Ki Kim, and Jae-Hoon Kim, "Electro-optical characteristics of a chiral hybrid in-plane switching liquid crystal mode for high brightness," Opt. Express 16, 12220-12226 (2008)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. M. Oh-e and K. Kondo, "Electro-optical characteristics and switching behavior of the in-plane switching mode," Appl. Phys. Lett. 67, 3895-3897 (1995). [CrossRef]
  2. S. H. Lee, S. L. Lee, and H. Y. Kim, "Electro-optic characteristics and switching principle of a nematic liquid crystal cell controlled by fringe-field switching," Appl. Phys. Lett. 73, 2881-2883 (1998). [CrossRef]
  3. T. Miyashita, Y. Yamaguchi, and T. Uchida, "Wide-Viewing-Angle Display Mode Using Bend-Alignment Liquid Crystal Cell," J. Appl. Phys. 34, L177-L179 (1995). [CrossRef]
  4. K. H. Kim, K. Lee, S. B. Park, J. K. Song, S. N. Kim, and J. H. Souk, "Domain divided vertical alignment mode with optimized fringe field effect," The 18th International Display Research Conference Asia Display �??98 (Society for Information Display, Seoul, Korea, 1998), 383-386.
  5. J. S. Gwag, J. Fukuda, M. Yoneya, and H. Yokoyama, "In-plane bistable nematic liquid crystal devices based on nanoimprinted surface relief," Appl. Phys. Lett. 91, 073504 (2007). [CrossRef]
  6. J. S. Gwag, J.-H. Kim, M. Yoneya, and H. Yokoyama, "Surface nematic bistability at nanoimprinted topography," Appl. Phys. Lett. 92, 073504 (2008). [CrossRef]
  7. J. S. Gwag, Y.-J. Lee, M.-E. Kim, J.-H. Kim, J. C. Kim, and T.-H. Yoon, "Viewing angle control mode using nematic bistability," Opt. Express 16, 2663-2668 (2008). [CrossRef]
  8. J. H. Kim, M. Yoneya, and H. Yokoyama, "Tristable nematic liquid-crystal device using micropatterned surface alignment," Nature (London) 420, 159 (2002). [CrossRef]
  9. R. Barberi and G. Durand, "Electrochirally controlled bistable surface switching in nematic liquid crystal," Appl. Phys. Lett. 58, 2907-2909 (1991). [CrossRef]
  10. I. Dozov, M. Nobili, and G. Durand, "Fast bistable nematic display using monostable surface switching," Appl. Phys. Lett. 70, 1179-1181 (1997). [CrossRef]
  11. D.-K. Yang, J. L. West, L. C. Chien, and J. W. Doane, "Control of reflectivity and bistability in display using cholesteric liquid crystals," J. Appl. Phys. 76, 1331-1333 (1994). [CrossRef]
  12. H.-Y. Chen, R. Shao, E. Korblova, W. Lee, D. Walba, and N. A. Clark, "A bistable liquid-crystal display mode based on electrically driven smectic A layer reorientation," Appl. Phys. Lett. 91, 163506 (2007).
  13. S. Kitson and A. Geisow, "Controllable alignment of nematic liquid crystals around microscopic posts: Stabilization of multiple states," Appl. Phys. Lett. 80, 3635-3637 (2002). [CrossRef]
  14. J.-X. Guo, Z.-G. Meng, M. Wong, and H.-S. Kwok, "Three-terminal bistable twisted nematic liquid crystal displays," Appl. Phys. Lett. 77, 3635-3637 (2000). [CrossRef]
  15. D. W. Berreman and W. R. Heffner, "New bistable cholesteric liquid-crystal display," Appl. Phys. Lett. 37, 109-111 (1980). [CrossRef]
  16. J. S. Gwag, K.-H. Park, J. L. Lee, J. C. Kim, and T.-H. Yoon, "Two-Domain Hybrid-Aligned Nematic Cell Fabricated by Ion Beam Treatment of Vertical Alignment Layer," Jpn. J. Appl. Phys. 44, 1875-1878 (2005). [CrossRef]
  17. J. B. Park, S. H. Park, E. J. Park, I. C. Park, H. Y. Kim, and J. Y. Lee, "Influence of Cell Design with Homogeneous LC Alignment on L0 Gray," The 14th International Display Workshop �??06 (Society for Information Display, Otsu, Japan, 2006), 177-180.
  18. A. Badano, "Viewing Angle Comparison of IPS and VA Medical AMLCDs," Digest of Technical Papers of 2005 Society for Information Display International Symposium (Society for information Display, Boston, Massachusetts, 2005), 192-195.
  19. S. Oka, M. Kimura, and T. Akahane, "Electro-optical characteristics and switching behavior of a twisted nematic liquid crystal device based upon in-plane switching," Appl. Phys. Lett. 80, 1847-1849 (2002). [CrossRef]
  20. J. H. Kim, M. Yoneya, J. Yamamoto and H. Yokoyama, "Surface alignment bistability of nematic liquid crystal by orientationally frustrated surface patterns," Appl. Phys. Lett. 78, 3055-3057 (2001). [CrossRef]
  21. Y. Sun, Z. Zhang, H. Ma, X. Zhu, and S.-T. Wu, "Optimal rubbing angle for reflective in-plane switching liquid crystal displays,"Appl. Phys. Lett. 81, 4907-4909 (2002). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1. Fig. 2. Fig. 3.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited