Back to results
US 5,207,944 AGranted
Liquid crystal composition and liquid crystal display element
AssigneeChisso Corporation
InventorsShinichi Sawada, Akiko Fukuda
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeChisso Corporation
InventorsShinichi Sawada, Akiko Fukuda
Estimating the term…
A nematic liquid crystal composition is provided having not only a high clearing point and a low viscosity and capable of exhibiting a desired .DELTA.n value, but also having an improved steepness in the voltage-transmittance characteristic in the SBE mode display. A liquid crystal display element is also provided. The composition is obtained by mixing a first component comprising a compound of the following formula (I) with a second component comprising a compound of the following formula (II), or by additionally mixing the first and second components with a third component comprising a group of compounds of the following formulas (III) and (IV), or further additionally mixing the first, second and third components with a fourth component comprising a compound of the following formula (V): ##STR1##
A liquid crystal composition for a supertwisted birefringence effect display including, a first component comprising at least one member of compounds expressed by the formula ##STR65## wherein R.sup.1 represents an alkyl group of 1 to 10 carbon atoms, and a second component comprising at least one member of compounds expressed by the formula ##STR66## wherein R.sup.2 represents an alkyl group of 1 to 10 carbon atoms, R.sup.3 represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms, R.sup.4 represents H or F and X represents a single bond or --CH.sub.2 CH.sub.2 -- and the blending proportion of the first component is 20 to 70% by weight and that of the second component is 20 to 50% by weight.
Dependencies are inferred from the claim text.