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Study on Electro-optic Characteristics of 45˚ Reflective Twisted Nematic Mode using an In-cell Retarder

내장형 위상자를 이용한 반사형 45˚ 비틀린 네마틱 액정 디스플레이의 전기광학 특성에 관한 연구

  • Published : 2006.05.01

Abstract

We have studied electro-optic characteristics of reflective $45^{\circ}$ twisted nematic liquid crystal display which implement the new LC orientation using of in-cell retarder film. For the embodiment of reflective liquid crystal display, essentially the optic compensation films was always needed and attached to the outside of glass substrate. In our study, these optic compensation film were not employed in reflective LC cell. On other hand we have employed the in-cell retarder to substitute the optic compensation film and were able to orient the LC molecules using this in-cell retarder. So we have developed the reflective LC cell that has good optical performances without any additional coating process on the in-cell retarder.

Keywords

References

  1. T. Ogawa, S. Fujita, Y. Iwai, and H. Koseki, 'The Trends of Refelctive LCDs for Future Electronic Paper', SID'98, p. 217, 1998
  2. R. Watanabe and O. Tomita, 'Recent Trends Of The Active Matrix LCDs for Mobile Use', IDW'02, p, 397, 2002
  3. S. T. Wu, C. S. Wu, and C. L. Kuo, 'Reflective direct-view and projection display using twisted nematic liquid crystal cells', Jpn. J. Appl. Phys., Vol. 36, No. 5A, p. 2721, 1997 https://doi.org/10.1143/JJAP.36.2721
  4. J. H. Song, T. B. Jung, and S. H. Lee, 'Power consumption and viewing angle characteristics dependent on liquid crystal's twist angle in reflective twisted nematic mode', J. of KIEEME(in Korean), Vol. 17, No. 2, p. 207, 2004
  5. J. H. Song, S. M. Oh, J. M. Rhee, and S. H. Lee, 'Electro-optic characteristics of reflective optically compensated splay cell', J. of KIEEME(in Korean), Vol. 17, No. 9, p. 983, 2004
  6. T. B. Jung, C. H. Park, H. Y. Kim, S. H. Hong, and S. H. Lee, 'Reflective displays associated with fringe field switching', Proc. of the 5Th KLCC'02, p. 77, 2002
  7. H. L. Ong, 'Electro-optic properties of guesthost nematic liquid crystal display', J. Appl. Phys. Lett., Vol. 63, No. 4, p. 619, 1977
  8. J. H. Song and S. H. Lee, 'A single gap transflective display using In-plane switching mode', Jpn. J. Appl. Phys., Vol. 43, No. 9A, p. 1130, 2004 https://doi.org/10.1143/JJAP.43.L1130
  9. M. O. Choi, Y. J. Lim, and S. H. Lee, 'The liquid crystal alignment effect of im-cell retarder using homogeneous alignment layer', Proc. 2005 Annual Summer Conf. KIEEME, Vol. 6, p. 449, 2005
  10. A. Lien, 'Extended Jones matrix representation for twisted nematic liquid-crystal display at oblique incidence', Appl. Phys. Lett., Vol. 57, No. 26, p. 2767, 1990 https://doi.org/10.1063/1.103781