27 October 1992 Waveform parameters effect on electro-optic properties of polymer-dispersed liquid-crystal light shutters
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Proceedings Volume 1815, Display Technologies; (1992) https://doi.org/10.1117/12.131322
Event: International Symposium on Optoelectronics in Computers, Communications, and Control, 1992, Hsinchu, Taiwan
Abstract
Electro-optic behaviors of polymer-dispersed liquid crystal (PDLC) films are not only dependent on materials and environments, but also on the electric field generated by driving voltage waveforms. In this paper, mathematical models for the relative permittivity, rise time and fall time are proposed and simulated. In addition, PDLC films composed of nematic liquid crystal and methyl methacrylate (MMA) are prepared. Light shutters are made from PDLC films with three dimensional polymer matrix. Electro-optic properties are measured using gated rectangular waveforms, and those results show good agreements with simulated results. Finally, the effects of waveform parameters on the rise time, fall time and contrast ratio are discussed.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chi-Chien Chen, Chi-Chien Chen, Jang-Jeng Liang, Jang-Jeng Liang, Wen Chang Chiang, Wen Chang Chiang, Wei-Yu Lee, Wei-Yu Lee, Jin-Shin Lin, Jin-Shin Lin, } "Waveform parameters effect on electro-optic properties of polymer-dispersed liquid-crystal light shutters", Proc. SPIE 1815, Display Technologies, (27 October 1992); doi: 10.1117/12.131322; https://doi.org/10.1117/12.131322
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