Abstract

A simple and novel optical heterodyne interferometer based on phase measurement was developed to measure liquid crystal cell parameters. Due to a common-path configuration utilized in this method, the Fabry-Perot effect and surface reflection could be eliminated in measurement, and a highly accurate measurement was expected. Based on the experimental data of the voltage-dependent phase change, the maximum phase retardation and cell gap of the nematic liquid crystal (NLC) layer was achieved experimentally. Experimental results agree well with theory.

© 2005 IEEE

PDF Article

References

  • View by:
  • |

  1. A. Lien and H. Takano, "Cell-gap measurement of filled twisted nematic liquid crystal displays by a phase compensation method", J. Appl. Phys., vol. 69, pp. 1304-1309, 1991.
  2. S. H. Lee, W. S. Park, G. D. Lee, K. Y. Han, T. H. Yoon and J. C. Kim, "Low-cell-gap measurement by rotation of a wave retarder", Jpn. J. Appl. Phys., vol. 41, pp. 379-383, 2002.
  3. J. S. Gwang, K. H. Park, G. D. Lee, T. H. Yoon and J. C. Kim, "Simple cell gap measurement for twisted-nematic liquid crystal cells", Jpn. J. Appl. Phys., vol. 43, pp. 30-32, 2004.
  4. J. S. Chae and S. G. Moon, "Cell parameter measurement of a twisted-nematic liquid crystal cell by the spectroscopic method", J. Appl. Phys., vol. 95, pp. 3250-3254, 2004.
  5. K. H. Yang, "Measurements of empty cell gap for liquid-crystal displays using interferometric methods", J. Appl. Phys., vol. 64, pp. 4780-4781, 1988.
  6. C. Chou, C. W. Lyu and L. C. Peng, "Polarization differential-phase laser scanning microscope", Appl. Opt., vol. 40, pp. 95-99, 2001.
  7. D. C. Su, M. H. Chiu and C. D. Chen, "Simple two-frequency laser", Precision Eng., vol. 18, pp. 161-163, 1996.
  8. I. C. Khoo and S. T.Wu, Optics and Nonlinear Optics of Liquid Crystals,: Singapore: World Scientific, 1993, pp. 148-158.
  9. E. Lueder, Liquid Crystal Displays, Hoboken, NJ: Wiley, 2004, ch. 3.

Appl. Opt. (1)

Other (8)

A. Lien and H. Takano, "Cell-gap measurement of filled twisted nematic liquid crystal displays by a phase compensation method", J. Appl. Phys., vol. 69, pp. 1304-1309, 1991.

S. H. Lee, W. S. Park, G. D. Lee, K. Y. Han, T. H. Yoon and J. C. Kim, "Low-cell-gap measurement by rotation of a wave retarder", Jpn. J. Appl. Phys., vol. 41, pp. 379-383, 2002.

J. S. Gwang, K. H. Park, G. D. Lee, T. H. Yoon and J. C. Kim, "Simple cell gap measurement for twisted-nematic liquid crystal cells", Jpn. J. Appl. Phys., vol. 43, pp. 30-32, 2004.

J. S. Chae and S. G. Moon, "Cell parameter measurement of a twisted-nematic liquid crystal cell by the spectroscopic method", J. Appl. Phys., vol. 95, pp. 3250-3254, 2004.

K. H. Yang, "Measurements of empty cell gap for liquid-crystal displays using interferometric methods", J. Appl. Phys., vol. 64, pp. 4780-4781, 1988.

D. C. Su, M. H. Chiu and C. D. Chen, "Simple two-frequency laser", Precision Eng., vol. 18, pp. 161-163, 1996.

I. C. Khoo and S. T.Wu, Optics and Nonlinear Optics of Liquid Crystals,: Singapore: World Scientific, 1993, pp. 148-158.

E. Lueder, Liquid Crystal Displays, Hoboken, NJ: Wiley, 2004, ch. 3.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.