Multiple liquid crystal display

Details Multiple liquid crystal display Multiple liquid crystal display

1988-08-25

1990-05-22

Arnold, Bruce Y.

350337, 350408, G02F 113

Patent

active

049272403

ABSTRACT:
There is provided a multilayer liquid crystal display of the twisted nematic type which comprises at least two liquid crystal layers and at least three polarizers, the sequence of which is described in detail. The device of the invention is characterized by an extremely high contrast ratio and makes possible very fast switching which is of importance for many applications. When a sequence of more than two liquid crystal layers, with a required number of polarizers is used, very high contrast ratios can be attained.

REFERENCES:
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patent: 4410887 (1983-10-01), Stolov et al.
patent: 4547043 (1985-10-01), Penz
Robert et al., "Multiplexing Techniques for Liquid-Crystal Displays," IEEE Transactions on Electron Devices, vol. ED-24, No. 6, Jun. 1977, pp. 694-697.

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