Antiferroelectric liquid crystal display device

Details Antiferroelectric liquid crystal display device Antiferroelectric liquid crystal display device

1998-08-27

2000-09-19

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within smectic phase

349172, 349184, 349100, G02F 113, G02F 11335

Patent

active

061220345

ABSTRACT:
An antiferroelectric liquid crystal display device includes: an active matrix type LC cell and an antiferroelectric liquid crystal sealed in the cell. Liquid crystal molecules aligned to one of a first aligning direction and a second aligning direction are aligned in the other aligning direction in accordance with an applied voltage, thus forming a plurality of regions of different alignment states in a range shorter than a wavelength of light in a visible light band, and directions of said directors are changed in accordance with a ratio of regions in a first alignment state to regions in a second alignment state. The liquid crystal molecules may behave along a predetermined cone by a phase transition precursor in accordance with an applied voltage. The liquid crystal molecules may behave so as to be inclined in a direction perpendicular to an electric field, in accordance with an applied voltage.

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patent: 5214523 (1993-05-01), Nito et al.
patent: 5559620 (1996-09-01), Tanaka et al.
patent: 5631752 (1997-05-01), Tanaka

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