Liquid crystal display

Details Liquid crystal display Liquid crystal display

1988-09-12

1993-03-23

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 76, 359 84, 359100, G02F 113

Patent

active

051969548

ABSTRACT:
A liquid crystal display of the chiral smectic type is caused to have grey scales, by applying a voltage of an intermediate level to the liquid crystal. Within each picture element of the display, there are a number of domains of the liquid crystal layer, some being transparent while the other being opaque rendering grey tone to the picture element.

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Yoshino et al. "New Electro-Optical effects in Ferroelective liquid Crystals" Appl. Phys. vol. 18, Supplement 18-1, pp. 427-433, 1979.
Pelzl et al, Mol. Cryst. Liq. Cryst, vol. 53, pp. 167-180, 1979.

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