Liquid crystal cells – elements and systems – Cell containing liquid crystal of specific composition
Patent
1999-02-12
2000-10-03
Kelly, C. H.
Liquid crystal cells, elements and systems
Cell containing liquid crystal of specific composition
25229965, 560 65, 560 73, C09K 1902, C09K 1912, C07C 6976
Patent
active
061280658
ABSTRACT:
A ferrielectric liquid crystal compound of the general formula (1), ##STR1## wherein R is a linear alkyl group having 6 to 12 carbon atoms, either each of X and Y is a hydrogen atom or one of X and Y is a hydrogen atom and the other is a fluorine atom, m is an integer of 1 to 2, n is 1 and C* is an asymmetric carbon. The above liquid crystal compound shows a ferrielectric phase in a wide temperature range and exhibits a fast response in spite of its small spontaneous polarization, and it is therefore remarkably useful for an active-matrix liquid crystal display device.
REFERENCES:
patent: 5938973 (1999-08-01), Motoyama et al.
patent: 5951914 (1999-09-01), Matsumoto et al.
patent: 5955001 (1999-09-01), Takigawa et al.
patent: 5968413 (1999-10-01), Mine et al.
patent: 5980780 (1999-11-01), Motoyama et al.
Keiichi Nito et al, SID'94 Preprint, TFT-driven Monostable Ferroelectric Liquid Crystal Display with Wide Viewing Angle and Fast Response Times Molecular Orientational Structures in Ferroelectric, Ferrielectric and Antiferroelectric Smectic Liquid Crystal Phases as Studied by Conoscope Observation, JP Journal of Applied Physics, vol. 29, No. 1, pp L131-137,1990.
Physics and Electroinic Model of Deformed Helix Ferroelectric Liquid Crystal Displays, JP Journal of Applied Physics, vol. 33, pp 4950, 1994.
Reentrant Antiferroelectric Phase in 4-(1-Methylheptyloxycarbonyl)phenyl 4'-Octylbiphenyl-4-Carboxylate, JP, Jnl. of Applied Physics, vol. 31 793 1992.
C.J. Booth, et al., "The ferro-, ferri- and antiferro-electric properties of a series of novel 2- or 3-substituted-alkyl 4-(4'dodecyloxybiphenyl-4-carbonloxy)-benzoate esters", vol. 20., No. 6, pp. 815-823, Jun. 1, 1996.
Johno Masahiro
Mine Takakiyo
Yui Tomoyuki
Kelly C. H.
Mitsubishi Gas Chemical Company Inc.
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