Presentation 2001/6/29
Memory effect of ferroelectric liquid crystal stabilized by polymer fibers
Takeshi MURASHIGE, Hideo FUJIKAKE, Seiichiro IKEHATA, Fumio SATO,
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Abstract(in English) We have studied the relationship between bent smectic layers of ferroelectric liquid crystal(FLC)stabilized by polymer fibers and molecular-alignment bistability, and realized the memory effect of the FLC by controlling the smectic layer structure. In forming the aligned polymer fibers with photopolymerization-induced phase separation, high pretilt alignment layers were used, so that the bending direction of FLC alignment was uniformed in cross-sectional plane. When the phase of FLC materials was changed from smectic A to smectic C^*, we applied ac voltage to the formed FLC/polymer composite film to stabilize cone axis of the FLC switching in rubbing direction. The bending of smectic layers in device plane was reduced, and the uniform layer structure allowed the memory effect of the device. The memory function accompanied the grayscale capability because of spatial distribution of bistable FLC domains with various threshold voltages.
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Keyword(in English) ferroelectric liquid crystal / memory effect / polymer fiber / horizontal bending of molecular alignment
Paper # EID2001-18
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Committee EID
Conference Date 2001/6/29(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Memory effect of ferroelectric liquid crystal stabilized by polymer fibers
Sub Title (in English)
Keyword(1) ferroelectric liquid crystal
Keyword(2) memory effect
Keyword(3) polymer fiber
Keyword(4) horizontal bending of molecular alignment
1st Author's Name Takeshi MURASHIGE
1st Author's Affiliation Science University of Tokyo()
2nd Author's Name Hideo FUJIKAKE
2nd Author's Affiliation NHK Science & Technical Research laboratories
3rd Author's Name Seiichiro IKEHATA
3rd Author's Affiliation Science University of Tokyo
4th Author's Name Fumio SATO
4th Author's Affiliation NHK Science & Technical Research laboratories
Date 2001/6/29
Paper # EID2001-18
Volume (vol) vol.101
Number (no) 172
Page pp.pp.-
#Pages 6
Date of Issue