Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Reexamination Certificate
2004-06-23
2008-09-30
Wu, Shean C (Department: 1795)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
C252S299010, C252S299610, C252S299620, C252S299630, C252S299660, C252S299670, C549S398000, C549S399000, C549S406000, C549S407000, C549S408000
Reexamination Certificate
active
07429411
ABSTRACT:
The compound (1) according to the invention has general solid-state properties necessary for a compound, stability against heat, light and the like, a suitable optical anisotropy, a suitable dielectric anisotropy, and excellent compatibility with other liquid crystalline compounds. The liquid crystal composition according to the invention contains at least one compound represented by formula (1). The liquid crystal display element according to the invention contains the composition. The compound (1) is represented by formula (1):wherein Ra, Rb, A1, A2, A3, A4, A5, A6, Z11, Z12, Z13, Z14, Z15, Z16, Y1, Y2, k, l, m, n, p and q are as defined in the specification.
REFERENCES:
patent: 7226644 (2007-06-01), Matsumoto et al.
patent: 7247355 (2007-07-01), Sagou et al.
patent: 2006/0163536 (2006-07-01), Matsumoto et al.
patent: 4579 (1979-10-01), None
patent: 5-25158 (1993-02-01), None
patent: 6-256337 (1994-09-01), None
patent: 6-256339 (1994-09-01), None
patent: 2001-316347 (2001-11-01), None
patent: WO 2005000995 (2005-01-01), None
CAPLUS 1980: 128727.
Bianca F. Bonini, et al., “Chiral Mesogens Containing the 2,3-Dihydrobenzopyran Nucleus”, Molecular Crystals and Liquid Crystals, 290, pp. 49-65, 1996.
Bianca F. Bonini et al., “Synthesis and Properties of a New Family of Chiral Mesogens Containing the 2-3-Dihydrobenzopyran Nucleus”, Journal of Organic Chemistry, 59 (20), pp. 5930-5936, 1994.
Sadao Takehara et al., “New Chiral Dopants for FLC Materials: Optically Active Cyclic Ehters”, Ferroelectrics, 148 (1-4), pp. 195-202, 1993.
von Urs H. Lauk et al., “Synthesis and Liquid-Crystal Properties of 2,6-Disubstituted Napthalene Derivatives”, Helvetica Chimica Acta, 68(5), pp. 1406-1426, 1985.
Sugiura Teruyo
Ushioda Makoto
Chisso Corporation
Chisso Petrochemical Corporation
Wenderoth , Lind & Ponack, L.L.P.
Wu Shean C
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