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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7088–7094

Polarizer-free, electrically switchable and optically rewritable displays based on dye-doped polymer-dispersed liquid crystals

Andy Ying-Guey Fuh, Che-Chang Chen, Cheng-Kai Liu, and Ko-Ting Cheng  »View Author Affiliations


Optics Express, Vol. 17, Issue 9, pp. 7088-7094 (2009)
http://dx.doi.org/10.1364/OE.17.007088


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Abstract

This work demonstrates the feasibility of a polarizer-free, electrically switchable and optically rewritable display based on dye-doped polymer-dispersed liquid crystals (DD-PDLCs). Experimental results indicate that the doped dyes are homeotropically adsorbed onto the polymer film when an appropriate AC voltage is applied during patterning. The adsorbed dyes in the illuminated region then align the liquid crystals homeotropically, and produce a transparent pattern in the scattering background without any polarizer. Notably, the adsorbed dyes can be erased and readsorbed using thermal and optical treatments, respectively. The switching time of the fabricated display is of the order of milliseconds, and the contrast ratio is ~ 30.

© 2009 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.5470) Materials : Polymers
(230.0230) Optical devices : Optical devices

ToC Category:
Optical Devices

History
Original Manuscript: February 20, 2009
Revised Manuscript: April 6, 2009
Manuscript Accepted: April 12, 2009
Published: April 14, 2009

Citation
Andy Ying-Guey Fuh, Che-Chang Chen, Cheng-Kai Liu, and Ko-Ting Cheng, "Polarizer-free, electrically switchable and optically rewritable displays based on dye-doped polymer-dispersed liquid crystals," Opt. Express 17, 7088-7094 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-9-7088


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