Ferroelectric liquid crystal cells

Details Ferroelectric liquid crystal cells Ferroelectric liquid crystal cells

1991-01-28

1992-06-23

Miller, Stanley D.

Optical: systems and elements

Optical computing without diffraction

359 76, G02F 113

Patent

active

051248271

ABSTRACT:
Relaxation effects of a uniform mode ferroelectric liquid crystal cell with obliquely evaporated alignment layers, characterized by the reduction in apparent tilt angle consequent upon removal of a switching stimulus, are eliminated by a poling treatment that typically comprises the application of a relatively low frequency (c. 500 Hz) relatively large amplitude (c. 60 volts peak-to-peak) electric potential difference across the thickness of the liquid crystal layer.

REFERENCES:
patent: 4762400 (1988-08-01), Shimoda et al.
patent: 4813767 (1989-03-01), Clark et al.
patent: 4838663 (1989-06-01), Lagerwall et al.
patent: 4932758 (1990-06-01), Hanyu et al.
patent: 4969719 (1990-11-01), Bradshaw et al.
Kondo et al. "A Practical Method of Preparing This Homogeneous Ferrolactic Smectic Cells", Japanese Journal of Appl. Phys., vol. 22 No. 2, Feb. 1983, pp. L85-L87.
Y. Sato et al. `High Quality Ferroelectric Liquid Crystal Display with Quasi-Bookshelf Layer Structure`, Japanese Journal of Applied Physics, vol. 28, No. 3, Mar. 1989, pp. L483-L486.

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