Reflection liquid crystal display device

Details Reflection liquid crystal display device Reflection liquid crystal display device

1996-12-30

1998-04-21

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349113, 349165, G02F 11335, C09K 1960

Patent

active

057423687

ABSTRACT:
A reflection liquid crystal display device which comprises a display substrate and a back substrate each having an electrode, and disposed in spaced opposition to each other; a liquid crystal layer which is provided between the display substrate and the back substrate, and composed of nematic liquid crystal to which dichromatic dye is added; a reflector plate provided on the back substrate; and a quarter-wave plate provided between the reflector plate and the liquid crystal layer. In the liquid crystal display device, twist pitch P of the liquid crystal and the distance d between the substrates satisfy the following expression:

REFERENCES:
patent: 3833287 (1974-09-01), Taylor et al.
patent: 3912369 (1975-10-01), Kashnow
patent: 4272162 (1981-06-01), Togashi et al.

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