Liquid crystal compositions and liquid crystal display elements

Details Liquid crystal compositions and liquid crystal display elements Liquid crystal compositions and liquid crystal display elements

1997-03-31

1999-02-02

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522996, 25229963, C09K 1934, C09K 1906, C09K 1930

Patent

active

058660372

ABSTRACT:
Liquid crystal compositions which can improve the low .DELTA.n (refractive index anisotropy) of conventional liquid crystal compositions containing a silacyclohexane compound and which retain a low viscosity and hence show no decrease in response speed. Liquid crystal compositions having a high .DELTA.n of 0.13 to 0.25, a low viscosity of 30 cp or less, a low threshold voltage and a high voltage holding ratio can be obtained by adding thereto, as a required component, a compound having both a silacyclohexane ring and a tolan structure, or a miture of a compound having a silacyclohexane ring and a compound having a tolan structure.

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