Liquid crystal device having a pair of electrodes with a...

Details Liquid crystal device having a pair of electrodes with a... Liquid crystal device having a pair of electrodes with a...

2011-03-01

2011-03-01

Heyman, John (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S079000, C349S115000, C349S164000, C313S112000, C313S509000

Reexamination Certificate

active

07898625

ABSTRACT:
A liquid crystal device including a pair of electrodes provided with a vertical alignment film and a liquid crystal layer disposed between the pair of electrodes and including a liquid crystal composition containing a liquid crystal with positive dielectric anisotropy, a dichroic dye and a chiral reagent, with a ratio (P/G) of a chiral pitch length (P) of the liquid crystal composition to a gap (G) between the pair of electrodes being from 0.06 to less than 1.0.

REFERENCES:
patent: 5529818 (1996-06-01), Tsuda et al.
patent: 6924873 (2005-08-01), Asada et al.
patent: 7576478 (2009-08-01), Hikmet
patent: 7-104297 (1995-04-01), None
patent: 7-199233 (1995-08-01), None
patent: WO-02/093241 (2002-11-01), None
Ichimura, Kunihiro Ed., Development of Chromic Materials, CMC Publishing Co., Ltd. (issued in 2000), pp. 226 to 236.

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