Optics and Precision Engineering, Volume. 18, Issue 6, 1295(2010)
Fabrication of uniform mono-domain alignment ferroelectric liquid crystal devices by asymmetric boundary anchoring
In order to eliminate the two-domain texture defects of Ferroelectric Liquid Crystal (FLC)samples(chiral nematic-chiral smectic C(N*-SmC*)) in their phase sequences to be cooled down from the N* phase to the SmC* phase, five kinds of FLC devices were prepared by using a FLC R-2301 and two kinds of liquid crystal alignment films SE-410 and RN-1199.After experiments and tests, it is concluded that the uniform mono-domain alignment of ferroelectric liquid crystals can be obtained by asymmetric boundary anchoring.Furthermore,the alignment textures of five devices were tested by a polarizing optical microscope with the crossed polarizers,and experimental results show that the FLC devices can offer half-V-shaped electric-optical characters and a static contrast ratio in 300∶1 after asymmetric boundary anchoring.The conclusion is in good agreement with the theoretical approximation and can provide a simple and novel method for fabricating ferroelectric liquid crystal devices.
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TANG Xian-zhu, PENG Zeng-hui, LIU Yong-gang, LU Xing-hai, XUAN Li. Fabrication of uniform mono-domain alignment ferroelectric liquid crystal devices by asymmetric boundary anchoring[J]. Optics and Precision Engineering, 2010, 18(6): 1295
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Received: Jul. 19, 2009
Accepted: --
Published Online: Aug. 31, 2010
The Author Email: Xian-zhu TANG (txzciomp@163.com)
CSTR:32186.14.