Method for giving cholesteric liquid crystals a planar orientati

Details Method for giving cholesteric liquid crystals a planar orientati Method for giving cholesteric liquid crystals a planar orientati

1995-01-17

1996-03-19

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 78, 359101, G02F 11337, G02F 113

Patent

active

055007520

ABSTRACT:
A liquid crystal cell comprising a cholesteric liquid crystal (3) between parallel plates (1, 2) as used e.g. for optical filters. The previously unavoidable interference through faulty disinclination is eliminated in that the cholesteric liquid crystal is mixed with a nematic or smectic liquid crystal material having negative dielectric anisotropy and the cell is subjected to an electric field directed at right angles to the plates.

REFERENCES:
patent: 4140371 (1979-02-01), Kanazaki et al.
patent: 4239345 (1980-12-01), Berreman et al.
patent: 5061047 (1991-10-01), Bradshaw et al.
Miike et al., Jap. J. Appl. Phys., vol. 19, No. 4, Apr. 1980, pp. 653-658.
De Zwart et al., Physics Letters, vol. 55A, No. 1, Nov. 1975, pp. 41-42.
Schadt et al., Japanese Journal of Applied Physics, vol. 29, No. 10, Oct. 1990, pp. 1974-1984.
Nagappa et al., Mol. Cryst. Liq. Cryst., vol. 101, 1983, pp. 103-127.

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