Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1973-12-06

1977-03-01

Padgett, Benjamin R.

Compositions

Radioactive compositions

Nuclear reactor fuel

252299, G02F 113, C09K 334

Patent

active

040099385

ABSTRACT:
A liquid crystal display device uses nematic liquid crystal compounds having a high positive dielectric anisotropy for rotating the plane of polarized light. The optical activity of a composition including such materials can be eliminated by impressing a sufficiently high voltage across a cell containing such materials. These properties make it possible to use such compositions as the basis of a device which is, in effect, an optical shutter.

REFERENCES:
patent: 3773747 (1973-11-01), Steinstrasser
patent: 3795436 (1974-03-01), Boller et al.
patent: 3796479 (1974-03-01), Helfrich et al.
patent: 3815972 (1974-06-01), Hsieh
patent: 3816336 (1974-06-01), McCaffrey et al.
patent: 3923857 (1975-12-01), Boller et al.
patent: 3960752 (1976-06-01), Klanderman et al.
DEJeu, W. H., Van der Veen, J., Philips Res. Repts., vol. 27, pp. 172-185 (Apr. 1972).

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