Abstract

We propose a long-pitch cholesteric liquid crystal (ChLC) device capable of operation in both the dynamic mode and the memory mode. Fast switching between the homeotropic state and the focal conic state allows the display of moving pictures at a low operating voltage. In addition, we can write text messages on the proposed ChLC device by applying an external pressure locally to switch it from the focal conic state to the planar state.

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  1. Y. Koikea, A. Mochizukia, and K. Yoshikawaa, “Phase transition-type liquid-crystal projection display,” Displays 10(2), 93–99 (1989).
    [CrossRef]
  2. D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
    [CrossRef]
  3. D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
    [CrossRef]
  4. B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).
  5. M.-H. Lu, “Bistable reflective cholesteric liquid crystal display,” J. Appl. Phys. 81(3), 1063–1066 (1997).
    [CrossRef]
  6. M. Xu, F. Xu, and D.-K. Yang, “Effect of cell structure on the reflection of cholesteric liquid crystal displays,” J. Appl. Phys. 83(4), 1938–1944 (1998).
    [CrossRef]
  7. J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
    [CrossRef]
  8. A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
    [CrossRef]
  9. D.-K. Yang, “Flexible bistable cholesteric reflective displays,” J. Disp. Technol. 2(1), 32–37 (2006).
    [CrossRef]
  10. C.-Y. Huang, K.-Y. Fu, K.-Y. Lo, and M.-S. Tsai, “Bistable transflective cholesteric light shutters,” Opt. Express 11(6), 560–565 (2003).
    [CrossRef] [PubMed]
  11. J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
    [CrossRef]
  12. K.-H. Kim, H.-J. Jin, K.-H. Park, J.-H. Lee, J. C. Kim, and T.-H. Yoon, “Long-pitch cholesteric liquid crystal cell for switchable achromatic reflection,” Opt. Express 18(16), 16745–16750 (2010).
    [CrossRef] [PubMed]
  13. K.-H. Kim, H.-J. Jin, D. H. Song, B.-H. Cheong, H.-Y. Choi, S. T. Shin, J. C. Kim, and T.-H. Yoon, “Switching of liquid-crystal devices between reflective and transmissive modes using long-pitch cholesteric liquid crystals,” Opt. Lett. 35(20), 3504–3506 (2010).
    [CrossRef] [PubMed]
  14. S. T. Wu, and D.-K. Yang, Reflective Liquid Crystal Displays (Wiley, 2001).
  15. P. G. de Gennes, and J. Prost, The Physics of Liquid Crystals (Oxford University Press, 1993).
  16. J. H. Lee, T. Kim, T.-H. Yoon, J. C. Kim, C.-G. Jhun, and S.-B. Kwon, “Transflective dual operating mode liquid crystal display with wideband configuration,” J. Opt. Soc. Korea 14(3), 260–265 (2010).
    [CrossRef]

2010 (4)

2006 (1)

D.-K. Yang, “Flexible bistable cholesteric reflective displays,” J. Disp. Technol. 2(1), 32–37 (2006).
[CrossRef]

2003 (1)

2001 (1)

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

1998 (2)

M. Xu, F. Xu, and D.-K. Yang, “Effect of cell structure on the reflection of cholesteric liquid crystal displays,” J. Appl. Phys. 83(4), 1938–1944 (1998).
[CrossRef]

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

1997 (1)

M.-H. Lu, “Bistable reflective cholesteric liquid crystal display,” J. Appl. Phys. 81(3), 1063–1066 (1997).
[CrossRef]

1996 (1)

B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).

1994 (2)

D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
[CrossRef]

D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
[CrossRef]

1989 (1)

Y. Koikea, A. Mochizukia, and K. Yoshikawaa, “Phase transition-type liquid-crystal projection display,” Displays 10(2), 93–99 (1989).
[CrossRef]

Anderson, J.

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

Armbruster, R.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Bos, P.

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

Cheong, B.-H.

Chien, L.-C.

D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
[CrossRef]

Choi, H.-Y.

Davis, D.

B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).

Doane, J. W.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).

D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
[CrossRef]

D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
[CrossRef]

Fu, K.-Y.

Glasser, J.

D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
[CrossRef]

Huang, C.-Y.

Huang, X.-Y.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Jhun, C.-G.

Jin, H.-J.

Kang, D.

J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
[CrossRef]

Khan, A.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Kim, J. C.

Kim, K.-H.

Kim, T.

Koikea, Y.

Y. Koikea, A. Mochizukia, and K. Yoshikawaa, “Phase transition-type liquid-crystal projection display,” Displays 10(2), 93–99 (1989).
[CrossRef]

Kwon, S.-B.

Lee, J. H.

Lee, J.-H.

J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
[CrossRef]

K.-H. Kim, H.-J. Jin, K.-H. Park, J.-H. Lee, J. C. Kim, and T.-H. Yoon, “Long-pitch cholesteric liquid crystal cell for switchable achromatic reflection,” Opt. Express 18(16), 16745–16750 (2010).
[CrossRef] [PubMed]

Lo, K.-Y.

Lu, M.-H.

M.-H. Lu, “Bistable reflective cholesteric liquid crystal display,” J. Appl. Phys. 81(3), 1063–1066 (1997).
[CrossRef]

Miller, N.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Mochizukia, A.

Y. Koikea, A. Mochizukia, and K. Yoshikawaa, “Phase transition-type liquid-crystal projection display,” Displays 10(2), 93–99 (1989).
[CrossRef]

Nicholson, F.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Park, J.

J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
[CrossRef]

Park, K.-H.

Ruth, J.

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

Sergan, V.

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

Shin, S. T.

Song, D. H.

St. John, D.

B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).

Taheri, B.

B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).

Tsai, M.-S.

Wall, B.

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Watson, P.

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

West, J. L.

D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
[CrossRef]

Xu, F.

M. Xu, F. Xu, and D.-K. Yang, “Effect of cell structure on the reflection of cholesteric liquid crystal displays,” J. Appl. Phys. 83(4), 1938–1944 (1998).
[CrossRef]

Xu, M.

M. Xu, F. Xu, and D.-K. Yang, “Effect of cell structure on the reflection of cholesteric liquid crystal displays,” J. Appl. Phys. 83(4), 1938–1944 (1998).
[CrossRef]

Yang, D.-K.

D.-K. Yang, “Flexible bistable cholesteric reflective displays,” J. Disp. Technol. 2(1), 32–37 (2006).
[CrossRef]

M. Xu, F. Xu, and D.-K. Yang, “Effect of cell structure on the reflection of cholesteric liquid crystal displays,” J. Appl. Phys. 83(4), 1938–1944 (1998).
[CrossRef]

D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
[CrossRef]

D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
[CrossRef]

Yaniv, Z.

D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
[CrossRef]

Yeon, J.

J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
[CrossRef]

Yoon, J.-B.

J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
[CrossRef]

Yoon, T.-H.

Yoshikawaa, K.

Y. Koikea, A. Mochizukia, and K. Yoshikawaa, “Phase transition-type liquid-crystal projection display,” Displays 10(2), 93–99 (1989).
[CrossRef]

Appl. Phys. Lett. (1)

D.-K. Yang, J. W. Doane, Z. Yaniv, and J. Glasser, “Cholesteric reflective display: drive scheme and contrast,” Appl. Phys. Lett. 64(15), 1905–1907 (1994).
[CrossRef]

Displays (1)

Y. Koikea, A. Mochizukia, and K. Yoshikawaa, “Phase transition-type liquid-crystal projection display,” Displays 10(2), 93–99 (1989).
[CrossRef]

J. Appl. Phys. (3)

D.-K. Yang, J. L. West, L.-C. Chien, and J. W. Doane, “Control of reflectivity and bistability in displays using cholesteric liquid crystals,” J. Appl. Phys. 76(2), 1331–1333 (1994).
[CrossRef]

M.-H. Lu, “Bistable reflective cholesteric liquid crystal display,” J. Appl. Phys. 81(3), 1063–1066 (1997).
[CrossRef]

M. Xu, F. Xu, and D.-K. Yang, “Effect of cell structure on the reflection of cholesteric liquid crystal displays,” J. Appl. Phys. 83(4), 1938–1944 (1998).
[CrossRef]

J. Disp. Technol. (1)

D.-K. Yang, “Flexible bistable cholesteric reflective displays,” J. Disp. Technol. 2(1), 32–37 (2006).
[CrossRef]

J. Opt. Soc. Korea (1)

Opt. Express (2)

Opt. Lett. (1)

SID Int. Symp. Digest Tech. Papers (4)

B. Taheri, J. W. Doane, D. Davis, and D. St. John, “Optical properties of bistable cholesteric reflective displays,” SID Int. Symp. Digest Tech. Papers 27, 39–42 (1996).

J. Yeon, J.-H. Lee, J.-B. Yoon, J. Park, and D. Kang, “A new reflective-type transparent display using cholesteric liquid crystal,” SID Int. Symp. Digest Tech. Papers 41(1), 838–841 (2010).
[CrossRef]

J. Anderson, P. Watson, J. Ruth, V. Sergan, and P. Bos, “Fast frame rate bistable cholesteric texture reflective displays,” SID Int. Symp. Digest Tech. Papers 29(1), 806–809 (1998).
[CrossRef]

A. Khan, X.-Y. Huang, R. Armbruster, F. Nicholson, N. Miller, B. Wall, and J. W. Doane, “Super high brightness reflective cholesteric display,” SID Int. Symp. Digest Tech. Papers 32(1), 460–463 (2001).
[CrossRef]

Other (2)

S. T. Wu, and D.-K. Yang, Reflective Liquid Crystal Displays (Wiley, 2001).

P. G. de Gennes, and J. Prost, The Physics of Liquid Crystals (Oxford University Press, 1993).

Supplementary Material (2)

» Media 1: AVI (3400 KB)     
» Media 2: AVI (3320 KB)     

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Figures (4)

Fig.
                            1
Fig. 1

Operation of a long pitch ChLC device. (a) Focal conic state. (b) Planar state. (c) Homeotropic state. (d) Switching from the focal conic state to the planar state by applying an external pressure.

Fig.
                            2
Fig. 2

Transmittances of the fabricated long pitch ChLC device operating in the memory mode as functions of the amplitude of the applied voltage pulse.

Fig.
                            3
Fig. 3

Operation of the fabricated long pitch ChLC device in the dynamic mode. (a) Switching between the planar and the homeotropic states. (b) Switching between the homeotropic and the focal conic states.

Fig.
                            4
Fig. 4

Text messages written on a prototype long pitch ChLC panel. (a) “PNU” (Media 1). (b) “Optics” (Media 2).

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