Dichroic dye composition, and liquid-crystal composition and...

Details Dichroic dye composition, and liquid-crystal composition and... Dichroic dye composition, and liquid-crystal composition and...

2008-01-17

2010-12-28

Visconti, Geraldina (Department: 1795)

Compositions

Liquid crystal compositions

C252S299200, C252S299600, C252S299100, C430S020000, C428S001100, C349S117000

Reexamination Certificate

active

07857991

ABSTRACT:
Provided are a dichroic dye composition in which a solubility of the dichroic dye with respect to liquid-crystal is sufficiently high and a wavelength dispersion of absorbance is small in a wide wavelength range, and a black guest-host liquid-crystal composition indicating high order parameters using such a dichroic dye composition and a liquid-crystal element having high contrast. The dichroic dye composition includes at least one dichroic dye selected from Group (I) shown below, at least one dichroic dye selected from Group (II) shown below, and at least one dichroic dye selected from Group (III) shown below.

REFERENCES:
patent: 10-095980 (1998-04-01), None
patent: 2000-017266 (2000-01-01), None
patent: 2000-073064 (2000-03-01), None
patent: 2000-313881 (2000-11-01), None

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