Cyclohexyl-dioxane liquid crystalline compounds

Details Cyclohexyl-dioxane liquid crystalline compounds Cyclohexyl-dioxane liquid crystalline compounds

1980-03-28

1981-11-03

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

25229961, 350349, C07D31904

Patent

active

042985285

ABSTRACT:
Novel liquid crystalline compounds having low viscosity, low transition temperatures, positive dielectric anisotropy and extremely low optical birefringence are provided. The compounds are represented by the formula: ##STR1## where R and R.sup.1 can be the same or different straight chain alkyl or alkoxy group and m can be 1 or 2.
Guest-host electrooptical displays including a mixture of one or more of the compounds with a suitable pleochroic dye exhibit much improved constrast and low driving voltage while eliminating the need for polarizers and excessive dye additions.

REFERENCES:
patent: 4085222 (1978-04-01), Rhodes et al.
Chem. Abstracts 56:9929a; 72:131393g; 86:P 111089f; 87:P 175685a.

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