Browsing by Author "Li, Jiong-Kuan"

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A bistable polarizer-free electro-optical switch using a droplet manipulation on a liquid crystal and polymer composite film
(2010-05-10)
Lin, Yi-Hsin
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Li, Jiong-Kuan
;
Chu, Ting-Yu
;
Hsu, Hsu-Kuan
;
光電工程學系
A bistable, polarizer-free, and reflective electro-optical switch based on a droplet manipulation on a liquid crystal and polymer composite film (LCPCF) is demonstrated. A color droplet on LCPCF can be manipulated by a wettability gradient owning to the distribution of LC directors anchored among the polymer grains on LCPCF. The contrast ratio is around 8: 1 in a reflective mode. The potential applications of droplet manipulation are electronic papers and reflective displays. (C)2010 Optical Society of America
A Reflective Polarizer-free Display Using a Droplet Manipulation on a Liquid Crystal and Polymer Composite Film
(2009)
Lin, Yi-Hsin
;
Lin, Hung-Chun
;
Li, Jiong-Kuan
;
Hsu, Hsu-Kuan
;
Li, Wang-Yang
A polarizer-free display using a droplet manipulation on a liquid crystal and polymer composite film (LCPCF) is demonstrated. Because of the electrically tunable orientation of the liquid crystal directors anchored among the polymer grains, the wettability of the LCPCF changes with an applied in-planed electric field. As a result, we can realize a reflective polarizer-free display when the colored droplet on the top of the LCPCF is manipulated by an inhomogeneous electric field. The contrast ratio is around 9:1 and the response time is around 900 ms.