Lyotropic nematic liquid crystals for use in electro-optical dis

Details Lyotropic nematic liquid crystals for use in electro-optical dis Lyotropic nematic liquid crystals for use in electro-optical dis

1972-08-07

1976-06-22

Weinblatt, Mayer

Compositions

Liquid crystal compositions

23230LC, 252408, 350160LC, C09K 334

Patent

active

039650308

ABSTRACT:
A display device in which a thin layer of a lyotropic nematic mesomorphic composition is utilized to diffuse light from a source toward an observer by applying a suitable voltage, for example, 20 volts for one mil layer. One form of the device transmits light through the layer. A second form of the device uses light diffused and reflected to the observer. A preferred lyotropic nematic mesomorphic composition includes three compounds of the structural formulae: ##SPC1## ##SPC2##

REFERENCES:
patent: 3499702 (1970-03-01), Goldmacher et al.
patent: 3540796 (1970-11-01), Goldmacher et al.
patent: 3675987 (1972-07-01), Rafuse
patent: 3738942 (1973-06-01), Matsumoto et al.

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