Abstract

This paper reviews the technologies of the wide view (WV) film. The WV film is an optical compensation film, which remarkably enhances the field of view of twisted nematic (TN) thin-film transistor liquid crystal displays (TFT-LCDs). We have recently developed a new WV film for the OCB mode, which promises a fast optical response speed and wide viewing angle LCD-TV. The WV film is made of a hybrid alignment polymerized discotic material (PDM) layer coated on a (tri-acetyl cellulose (TAC) substrate. The PDM layer alignment technology and the TAC retardation control technology give us the flexibility to develop a compensation film for any LCD mode and allow a cost effective roll-to-roll polarizer lamination process.

© 2005 IEEE

PDF Article

References

  • View by:
  • |

  1. M. Ohta, M. Oh-e and K. Kondo, "Development of super-TFT-LCDs with in-plane switching display mode"", in Asia Display'95, 1995, pp. 707-710.
  2. Y. Koike, S. Kataoka, T. Sasaki, H. Chida, H. Tsuda, A. Takeda, K. Ohmuro, T. Sasabayashi and K. Okamoto, "A vertically aligned LCD providing super-high image quality", in IDW'97 Dig., 1997, pp. 159 -162.
  3. K. H. Yang, "Two-domain twisted nematic and tilted homeotropic liquid crystal displays for active matrix applications", in IDRC'91 Dig., 1991, pp. 68-71.
  4. H. Mori, M. Nagai, H. Nakayama, Y. Itoh, K. Kamada, K. Arakawa and K. Kawata, "Novel optical compensation method based upon a discotic optical compensation film for wide-viewing-angle LCDs", in SID'03 Dig. , 2003, pp. 1058-1061.
  5. Y. Ito, R. Matsubara, R. Nakamura, M. Nagai, S. Nakamura, H. Mori and K. Mihayashi, "OCB-WV film for fast-response-time and wide-viewing-angle LCD-TVs", in SID'05 Dig., 2005, pp. 986 -989.
  6. Y. Saitoh, S. Kimura, K. Kusafuka and H. Shimizu, "Optically compensated in-plane-switching-mode TFT-LCD panel", in SID'98 Dig., 1998, pp. 706 -709.
  7. J. Chen, K.-H. Kim, J.-J. Lyu, J. H. Souk, J. R. Kelly and P. J. Bos, "Optimum film compensation modes for TN and VA LCDs", in SID'98 Dig., 1998, pp. 315- 318.
  8. Y. Fujimura, T. Nagatsuka, H. Yoshimi and T. Shimomura, "Optical properties of retardation films for STN-LCDs", in SID'91 Dig., 1991, pp. 739 -742.
  9. P. J. Bos and K. R. Koehler/Beran, "The pi-celL: A fast liquid-crystal optical-switching device"", in Mol. Cryst. Liq. Cryst., vol. 113, 1984, pp. 329-339.
  10. P. J. Bos and J. A. Rahman, "An optically 'self-compensating' electro-optical effect with wide angle of view",", in SID'93 Dig., vol. 273, 1993 .
  11. Y. Yamaguchi, T. Miyashita and T. Uchida, "Wide-viewing-angle display mode for the active-matrix LCD Using bend-alignment liquid-crystal cell", in SID'93 Dig., 1993, pp. 273-276.
  12. K. Nakao, D. Suzuki, T. Kojima, M. Tsukane and H. Wakemoto, "High-speed bend transition method using electrical twist field in OCB mode TFT-LCDs", in SID'04 Dig., 2004, pp. 1416-1419.
  13. K. Miwa and H. Nakamura, "Novel driving method for bend mode LCD", in IDW'97 Dig., 1997, pp. 85-88.
  14. Y. Takahashi, H. Watanabe and T. Kato, "Depth-dependent determination of molecular orientation for WV-film", in IDW'04 Dig., 2004, pp. 651- 654.
  15. H. Mori, "TAC film as a key component for LCDs"", in IMID'05,, to be published.
  16. E. Aminaka, Y. Ito, M. Murayama, N. Fukagawa, M. Wada, H. Mori, K. Takeuchi and K. Mihayashi, "Mura-improved thin wide view film for LCDs", in IDW'03 Dig., 2003, pp. 689- 692.

Other (16)

M. Ohta, M. Oh-e and K. Kondo, "Development of super-TFT-LCDs with in-plane switching display mode"", in Asia Display'95, 1995, pp. 707-710.

Y. Koike, S. Kataoka, T. Sasaki, H. Chida, H. Tsuda, A. Takeda, K. Ohmuro, T. Sasabayashi and K. Okamoto, "A vertically aligned LCD providing super-high image quality", in IDW'97 Dig., 1997, pp. 159 -162.

K. H. Yang, "Two-domain twisted nematic and tilted homeotropic liquid crystal displays for active matrix applications", in IDRC'91 Dig., 1991, pp. 68-71.

H. Mori, M. Nagai, H. Nakayama, Y. Itoh, K. Kamada, K. Arakawa and K. Kawata, "Novel optical compensation method based upon a discotic optical compensation film for wide-viewing-angle LCDs", in SID'03 Dig. , 2003, pp. 1058-1061.

Y. Ito, R. Matsubara, R. Nakamura, M. Nagai, S. Nakamura, H. Mori and K. Mihayashi, "OCB-WV film for fast-response-time and wide-viewing-angle LCD-TVs", in SID'05 Dig., 2005, pp. 986 -989.

Y. Saitoh, S. Kimura, K. Kusafuka and H. Shimizu, "Optically compensated in-plane-switching-mode TFT-LCD panel", in SID'98 Dig., 1998, pp. 706 -709.

J. Chen, K.-H. Kim, J.-J. Lyu, J. H. Souk, J. R. Kelly and P. J. Bos, "Optimum film compensation modes for TN and VA LCDs", in SID'98 Dig., 1998, pp. 315- 318.

Y. Fujimura, T. Nagatsuka, H. Yoshimi and T. Shimomura, "Optical properties of retardation films for STN-LCDs", in SID'91 Dig., 1991, pp. 739 -742.

P. J. Bos and K. R. Koehler/Beran, "The pi-celL: A fast liquid-crystal optical-switching device"", in Mol. Cryst. Liq. Cryst., vol. 113, 1984, pp. 329-339.

P. J. Bos and J. A. Rahman, "An optically 'self-compensating' electro-optical effect with wide angle of view",", in SID'93 Dig., vol. 273, 1993 .

Y. Yamaguchi, T. Miyashita and T. Uchida, "Wide-viewing-angle display mode for the active-matrix LCD Using bend-alignment liquid-crystal cell", in SID'93 Dig., 1993, pp. 273-276.

K. Nakao, D. Suzuki, T. Kojima, M. Tsukane and H. Wakemoto, "High-speed bend transition method using electrical twist field in OCB mode TFT-LCDs", in SID'04 Dig., 2004, pp. 1416-1419.

K. Miwa and H. Nakamura, "Novel driving method for bend mode LCD", in IDW'97 Dig., 1997, pp. 85-88.

Y. Takahashi, H. Watanabe and T. Kato, "Depth-dependent determination of molecular orientation for WV-film", in IDW'04 Dig., 2004, pp. 651- 654.

H. Mori, "TAC film as a key component for LCDs"", in IMID'05,, to be published.

E. Aminaka, Y. Ito, M. Murayama, N. Fukagawa, M. Wada, H. Mori, K. Takeuchi and K. Mihayashi, "Mura-improved thin wide view film for LCDs", in IDW'03 Dig., 2003, pp. 689- 692.

Cited By

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