Abstract

A reflective cholesterol liquid crystal (CLC) display with a wide viewing angle is demonstrated using the phase-separated composite film (PSCOF) method. The PSCOF-based CLC is formed by periodic and gradient UV illumination, slow polymerization and phase separation of the LC and prepolymer mixture. The helical axis of CLC is aligned normal to the protrusion of the PSCOF structure, and the multi-domain CLC structure can provides a wide viewing angle and low color shift. The conformation of PSCOF was also verified by AFM and SEM. The multi-domain PSCOF-based CLC display is simple to fabricate and suitable for use in a low-temperature flexible plastic process.

© 2011 IEEE

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2007 (1)

Q. Wang, R. Guo, M. R. Daj, S.-W. Kang, S. Kumar, "Flexible plastic displays fabricated using phase-separated composite films of liquid crystals," Jpn. J. Appl. Phys. 46, 299-303 (2007).

2006 (2)

2005 (3)

Y. H. Fan, H. Ren, S. T. Wu, "Electrically switchable Fresnel lens using a polymer-separated composite film," Opt. Express 13, 4141-4147 (2005).

Q. Wang, J. O. Park, M. Srinvasarao, L. Qiu, S. Kumar, "Control of polymer structures in phase-separated liquid crystal-polymer composite systems," Jpn. J. Appl. Phys. 44, 3115-3120 (2005).

A. Khan, I. Shiyanovskaya, S. Green, G. Magyar, O. Pishnyak, J. W. Doane, "Reflective cholesteric displays: From rigid to flexible," J. Soc. Inf. Displays 13, 469-474 (2005).

2003 (2)

2002 (1)

H. Kim, "Fabrication of electro-optic devices using liquid crystals with a single glass substrate," J. Appl. Phys. 92, 7699-7701 (2002).

2000 (1)

T. Qian, J.-H. Kim, S. Kumar, P. L. Taylor, "Phase-separated composite films: Experiment and theory," Phys. Rev. E 61, 4007-4010 (2000).

1999 (1)

V. Vorflusev, J. H. Kim, S. Kumar, "Phase separated composite films of liquid crystals," Pramana-J. Phys. 53, 121-129 (1999).

1994 (2)

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

D.-K. Yang, J. W. Doane, "Cholesteric reflective display: Drive scheme and contrast," Appl. Phys. Lett. 64, 1905-1907 (1994).

Appl. Phys. Lett. (1)

D.-K. Yang, J. W. Doane, "Cholesteric reflective display: Drive scheme and contrast," Appl. Phys. Lett. 64, 1905-1907 (1994).

J. Appl. Phys. (2)

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

H. Kim, "Fabrication of electro-optic devices using liquid crystals with a single glass substrate," J. Appl. Phys. 92, 7699-7701 (2002).

J. Display Technol. (1)

J. Soc. Inf. Displays (1)

A. Khan, I. Shiyanovskaya, S. Green, G. Magyar, O. Pishnyak, J. W. Doane, "Reflective cholesteric displays: From rigid to flexible," J. Soc. Inf. Displays 13, 469-474 (2005).

Jpn. J. Appl. Phys. (2)

Q. Wang, R. Guo, M. R. Daj, S.-W. Kang, S. Kumar, "Flexible plastic displays fabricated using phase-separated composite films of liquid crystals," Jpn. J. Appl. Phys. 46, 299-303 (2007).

Q. Wang, J. O. Park, M. Srinvasarao, L. Qiu, S. Kumar, "Control of polymer structures in phase-separated liquid crystal-polymer composite systems," Jpn. J. Appl. Phys. 44, 3115-3120 (2005).

Opt. Express (2)

Opt. Lett. (1)

Phys. Rev. E (1)

T. Qian, J.-H. Kim, S. Kumar, P. L. Taylor, "Phase-separated composite films: Experiment and theory," Phys. Rev. E 61, 4007-4010 (2000).

Pramana-J. Phys. (1)

V. Vorflusev, J. H. Kim, S. Kumar, "Phase separated composite films of liquid crystals," Pramana-J. Phys. 53, 121-129 (1999).

Progr. Polymer Sci. (1)

M. Mucha, "Polymer as an important component of blends and composites with liquid crystals," Progr. Polymer Sci. 28, 837-873 (2003).

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