Liquid crystal display having a single polarizer and no retardat

Details Liquid crystal display having a single polarizer and no retardat Liquid crystal display having a single polarizer and no retardat

1997-03-25

1999-07-20

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within nematic phase

349181, C09K 1902

Patent

active

059262451

ABSTRACT:
The invention provides a reflective liquid crystal display which consists of just an input polarizer, the liquid crystal cell and a rear reflector which can be placed inside or outside of the liquid crystal cell. There is no rear polarizer and no retardation film compensation. The invention is capable of producing a high contrast, low chromatic dispersion display. Depending on the twist angle chosen for the liquid crystal cell, the display can be used in direct view or in a projection type display. The display can also be driven in an active matrix mode or in a passive matrix multiplexed drive mode. A full numerical simulation which takes into account the liquid crystal director deformation under the application of an electric field was used to optimize such displays.

REFERENCES:
patent: 5004324 (1991-04-01), Leenhouts et al.
patent: 5105289 (1992-04-01), Sonehara et al.
patent: 5251049 (1993-10-01), Sato et al.
patent: 5295009 (1994-03-01), Barnik et al.
patent: 5361151 (1994-11-01), Sonehara et al.
patent: 5555113 (1996-09-01), Mulkens et al.
patent: 5726723 (1998-03-01), Wang et al.

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