Abstract

This work develops a new technology to fabricate polymer-dispersed microencapsulated liquid crystal (PDMLC) devices using screen-printing, which is a low temperature procedure (about 90 $^{\circ}$C) for application on a soft plastic substrate. This research demonstrates numerically and in Mandarin, a 4.5-in multicolor PDMLC (MPDMLC) device with high color contrast, low electric consumption and flexible bending mechanical property. The current work coats three different color pastes (red, blue and black) on a single substrate. Their turn-on voltages are all as low as 5 V and saturation voltages are 20, 30, and 30 V for red, blue, and black colors, respectively.

© 2009 IEEE

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  1. J. W. Doane, A. Golemme, J. L. West, J. B. Whitehead Jr., B. G. Wu, "Polymer dispersed liquid crystals for display application," Mol. Cryst. Liquid Cryst. 165, 511-532 (1988).
  2. G. W. Smith, N. A. Vaz, "The relationship between formation kinetics and microdroplet size of epoxy-based polymer-dispersed liquid crystal," Liquid Crystals 3, 543-571 (1988).
  3. J. W. Doane, J. L. West, J. Pirs, S. Zumer, R. Blinc, "High intensity color projection for automotive displays," SPIE Automotive Displays and Industrial Illumination (1988) pp. 94-98.
  4. J. L. West, "Phase separation of liquid crystals in polymers," Mol. Cryst. Liq. Cryst. Inc. Nonlinear Opt. 157, 427-441 (1988).
  5. S. Pane, M. Caporusso, H. Hakemi, "Haze and opacity control in polymer dispersed liquid crystal (PDLC) film with phase separation method," Liquid Crystals 23, 861 (1997).
  6. T. Satoshi, A. Masayuki, T. Tatsuya, S. Tadafumi, M. Hiroki, Dai Nippon Printing Co., LtdTokyoJapanMethod of making a polymer dispersed liquid crystal by electrodeposition U.S. Patent 5 479 278 (1995).
  7. T. Satoshi, A. Masayuki, T. Tatsuya, S. Tadafumi, M. Hiroki, H. Hideshi, I. Kei, Dai Nippon Printing Co., LtdTokyoJapanPolymer dispersion-type liquid crystal optical device and method for producing the same U.S. Patent 6 108 062 (2000).
  8. J. Qi, G. P. Crawford, "Holographically formed polymer dispersed liquid crystal displays," Displays 25, 177-186 (2004).
  9. A. Masutani, T. Roberts, B. Schüller, N. Hollfelder, P. Kilickiran, G. Nelles, A. Yasuda, A. Sakaigawa, "Improvement of dichroic polymer dispersed liquid crystal performance using lift-off technique," Appl. Phys. Lett. 89, 183514 (2006).
  10. P. C. Wang, A. G. MacDiac Diarmid, "Integration of polymer-dispersed liquid crystal composites with conducting polymer thin films toward the fabrication of flexible display devices," Display 28, 101-104 (2007).

2007 (1)

P. C. Wang, A. G. MacDiac Diarmid, "Integration of polymer-dispersed liquid crystal composites with conducting polymer thin films toward the fabrication of flexible display devices," Display 28, 101-104 (2007).

2006 (1)

A. Masutani, T. Roberts, B. Schüller, N. Hollfelder, P. Kilickiran, G. Nelles, A. Yasuda, A. Sakaigawa, "Improvement of dichroic polymer dispersed liquid crystal performance using lift-off technique," Appl. Phys. Lett. 89, 183514 (2006).

2004 (1)

J. Qi, G. P. Crawford, "Holographically formed polymer dispersed liquid crystal displays," Displays 25, 177-186 (2004).

1997 (1)

S. Pane, M. Caporusso, H. Hakemi, "Haze and opacity control in polymer dispersed liquid crystal (PDLC) film with phase separation method," Liquid Crystals 23, 861 (1997).

1988 (3)

J. W. Doane, A. Golemme, J. L. West, J. B. Whitehead Jr., B. G. Wu, "Polymer dispersed liquid crystals for display application," Mol. Cryst. Liquid Cryst. 165, 511-532 (1988).

G. W. Smith, N. A. Vaz, "The relationship between formation kinetics and microdroplet size of epoxy-based polymer-dispersed liquid crystal," Liquid Crystals 3, 543-571 (1988).

J. L. West, "Phase separation of liquid crystals in polymers," Mol. Cryst. Liq. Cryst. Inc. Nonlinear Opt. 157, 427-441 (1988).

Appl. Phys. Lett. (1)

A. Masutani, T. Roberts, B. Schüller, N. Hollfelder, P. Kilickiran, G. Nelles, A. Yasuda, A. Sakaigawa, "Improvement of dichroic polymer dispersed liquid crystal performance using lift-off technique," Appl. Phys. Lett. 89, 183514 (2006).

Display (1)

P. C. Wang, A. G. MacDiac Diarmid, "Integration of polymer-dispersed liquid crystal composites with conducting polymer thin films toward the fabrication of flexible display devices," Display 28, 101-104 (2007).

Displays (1)

J. Qi, G. P. Crawford, "Holographically formed polymer dispersed liquid crystal displays," Displays 25, 177-186 (2004).

Liquid Crystals (2)

S. Pane, M. Caporusso, H. Hakemi, "Haze and opacity control in polymer dispersed liquid crystal (PDLC) film with phase separation method," Liquid Crystals 23, 861 (1997).

G. W. Smith, N. A. Vaz, "The relationship between formation kinetics and microdroplet size of epoxy-based polymer-dispersed liquid crystal," Liquid Crystals 3, 543-571 (1988).

Mol. Cryst. Liq. Cryst. Inc. Nonlinear Opt. (1)

J. L. West, "Phase separation of liquid crystals in polymers," Mol. Cryst. Liq. Cryst. Inc. Nonlinear Opt. 157, 427-441 (1988).

Mol. Cryst. Liquid Cryst. (1)

J. W. Doane, A. Golemme, J. L. West, J. B. Whitehead Jr., B. G. Wu, "Polymer dispersed liquid crystals for display application," Mol. Cryst. Liquid Cryst. 165, 511-532 (1988).

Other (3)

J. W. Doane, J. L. West, J. Pirs, S. Zumer, R. Blinc, "High intensity color projection for automotive displays," SPIE Automotive Displays and Industrial Illumination (1988) pp. 94-98.

T. Satoshi, A. Masayuki, T. Tatsuya, S. Tadafumi, M. Hiroki, Dai Nippon Printing Co., LtdTokyoJapanMethod of making a polymer dispersed liquid crystal by electrodeposition U.S. Patent 5 479 278 (1995).

T. Satoshi, A. Masayuki, T. Tatsuya, S. Tadafumi, M. Hiroki, H. Hideshi, I. Kei, Dai Nippon Printing Co., LtdTokyoJapanPolymer dispersion-type liquid crystal optical device and method for producing the same U.S. Patent 6 108 062 (2000).

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