DICHROIC DYE COMPOSITION, POLARIZING FILM, LIQUID CRYSTAL CELLS AND DISPLAY DEVICES

WIPO Patent Application WO/2011/024891

A1

Provided is a dichroic dye composition which exhibits a high dichroic ratio and excellent orientation properties. The dichroic dye composition contains at least one liquid-crystalline dichroic dye represented by general formula (I): Ar1-N=N-Ar2-L1-Ar3-L2-Ar4 [wherein Ar1 to Ar4 are each an aromatic hydrocarbon group, an aromatic heterocyclic group or a cyclohexane ring group, each group being optionally substituted; L1 and L2 are each an azo group, an ester group, an inimo group, or a vinylene group, with the proviso that L1 and L2 are not both azo groups].

GOTO RYOJI (JP)
IWAHASHI NOBUTAKA (JP)

PCT/JP2010/064468

March 03, 2011

August 26, 2010

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FUJIFILM CORP (JP)
GOTO RYOJI (JP)
IWAHASHI NOBUTAKA (JP)

C09K19/60; C09B43/30; C09B43/32; C09B67/20; G02B5/30; G02F1/1335

JPH0613703B2	1994-02-23
JPS6229477B2	1987-06-26
JPH1060446A	1998-03-03
JPH0867879A	1996-03-12
JPH0517275B2	1993-03-08
JP2010150513A	2010-07-08
JP2010152351A	2010-07-08

M.MATSUI ET AL.: "Synthesis of fluorine-containing disazo dyes extended with ester linkages and their application to guest-host liquid crystal displays", LIQUID CRYSTALS, vol. 23, no. 2, 1997, pages 217 - 225, XP000701490, DOI: doi:10.1080/026782997208479
M.MATSUI ET AL.: "Synthesis of perfluorobutyl-substituted ester-disazo dyes and their application to guest-host liquid crystal displays", LIQUID CRYSTALS, vol. 29, no. 5, 2002, pages 707 - 712, XP001102377, DOI: doi:10.1080/02678290210129920

SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)

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