Ferroelectric liquid crystal composition and liquid crystal disp

Details Ferroelectric liquid crystal composition and liquid crystal disp Ferroelectric liquid crystal composition and liquid crystal disp

1998-12-17

2000-05-23

Wu, Shean C.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

25229961, 349 34, 349 97, 349184, 349185, 428 11, G02F 1141, G02F 1133, C09K 1934

Patent

active

060671300

ABSTRACT:
Ferroelectric liquid crystal compositions having a large dependency of spontaneous polarization on temperature; liquid crystal display devices exhibiting a small dependency of response speed on temperature and making it possible to obtain a wide temperature margin in practical use, and fabricated by using the ferroelectric liquid crystal composition; and methods for driving the devices are provided;
the compositions comprising at least one compound expressed by the following general formula (1) ##STR1## at least one compound expressed by the following general formula (2), and ##STR2## at least one compound expressed by the following general formula (3) ##STR3## wherein R.sub.1 to R.sub.6, ring A-B, A, X.sub.1, and X.sub.2 are herein defined.

REFERENCES:
patent: 5120468 (1992-06-01), Saito et al.
patent: 5380460 (1995-01-01), Wand et al.

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