Compositions – Liquid crystal compositions
Patent
1994-09-28
1996-12-10
Kelly, Cynthia Harris
Compositions
Liquid crystal compositions
25229962, 25229961, 25229963, 349184, C09K 1952, C09K 1932, C09K 1930, G02F 113
Patent
active
055827632
ABSTRACT:
A liquid crystal device with little temperature-dependence of drive characteristics, such as response speed, and with good storage stability, can be produced by using a liquid crystal composition, successively assuming SmA (smectic A) phase and SmC* (chiral smectic) phase on temperature decrease. The layer spacing composition has a temperature-dependence of layer spacing d in smectic phase such that the layer spacing d increases, is constant or decreases on temperature decrease in SmA phase temperature range, assumes a first transition point where the layer spacing d abruptly decreases on temperature decrease in vicinity of transition temperature from SmA phase to SmC* phase, and assumes a second transition point where the layer spacing d commences to increase on further temperature decrease below the first transition point in SmC* temperature range.
REFERENCES:
patent: 4367924 (1983-01-01), Clark et al.
patent: 5268123 (1993-12-01), Mori et al.
patent: 5305131 (1994-04-01), Terada et al.
patent: 5354501 (1994-10-01), Nakamura et al.
patent: 5385692 (1995-01-01), Iwaki et al.
Japanese Journal of Appl. Phys., vol. 29(2), No. 6 (Jun., 1990) L984-86.
Japanese Journal of Appl. Phys., vol. 29(1), No. 9 (Sep., 1990) 1757-64.
Research Disclosure, vol. 345 (Jan. 1993) p. 49.
F. Nakano et al., Japanese Journal of Applied Physics, V. 19 No. 10 (1980), pp. 2013-2014.
Y. Ouchi et al., Japanese Journal of Applied Physics, V. 27 No. 5 (1988), pp. L725-L728.
N. A. Clark and S. T. Lagerwall, Structures and Applications of SSFLC Devices, Sep. 30-Oct. 2, 1986, pp. 456-458, Proceedings of the 6th International Display Research Conference.
Mizuno Hiroshi
Terada Masahiro
Yamada Syuji
Canon Kabushiki Kaisha
Harris Kelly Cynthia
LandOfFree
Liquid crystal composition, liquid crystal device and liquid cry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystal composition, liquid crystal device and liquid cry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal composition, liquid crystal device and liquid cry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-421875