Mitsubishi Chemical Corporation

Shin-etsu Chemical Co., Ltd.

Masami Kadowaki

Masaharu Kaneko

Hideki Sato

Tomio Yoneyama

Hideo Sano

Yasushi Shiga

Ryuichi Hasegawa

Junichi Oizumi

Takaaki Shimizu

Tatsushi Kaneko

Mio Ishida

Wataru Shimizu

Seiji Akiyama

Utako Takeda

Yoshie Takami

Masaaki Nishimura

Masaharu Keneko

Noriyuki Kida

Terutsune Osawa

Kei Takeshita

Souya Kojima

A compound of formula (1) or (11):X-A-(N═N-A)-N═N-A-Y  (1)X-A-(N═N-A)-N═N-A-Y  (11),

Compound, composition for anisotropic dye films including the compound, anisotropic dye film, and optical element

A liquid crystal element which comprises: a pair of substrates with electrodes, in which the substrates are arranged so as to face each other and at least one of the substrates is a transparent substrate; and a liquid crystal light adjusting layer which is disposed between the substrates and contains a composite containing a chiral nematic liquid crystal phase and a polymer resin phase, wherein the polymer resin phase contains a polymer compound having a specific repeating unit, and dielectric constant anisotropy of the chiral nematic liquid crystal phase is positive.

Liquid crystal element and liquid crystal composition

An object of the present invention is to provide an anthraquinone based dye having excellent solubility in a low polar solvent and having high absorption coefficient and high light resistance and an ink containing the same. The present invention relates to an ink comprising a specific anthraquinone based dye.

Ink containing anthraquinone based dye, dye used in the ink, and display

To provide a dye capable of forming an anisotropic dye film showing high dichroism and having a high degree of molecular orientation, a composition containing the dye, an anisotropic dye film using the dye and a polarizing element. A trisazo dye, of which the free acid form is represented by the following formula (1), wherein at least one of Band Dhas at least one substituent as defined by the following Q1, a dye composition for an anisotropic dye film containing the dye, an anisotropic dye film and a polarizing element using the anisotropic dye film: wherein Ais a phenyl group or a naphthyl group, each of Band Dis a phenylene group or a naphthylene group, Xis an amino group which may be substituted or a hydroxyl group, and m is 0 or 1.

Azo dyes, compositions for anisotropic dye films using them, anisotropic dye films and polarizing elements

An anisotropic dye film having high dichromatic properties is provided. An anisotropic dye film wherein the period d attributable to molecular stacking is at most 3.445 &#x212b;, and the column length L thereof is at least 105 &#x212b;. The anisotropic dye film preferably has a degree of orientation of the molecular stacking axes of at least 85% and a film thickness of at most 30 &#x3bc;m, and is formed by a wet film-forming method. Since it has a molecular alignment suitable to develop a dichroic ratio, it provides high dichromatic properties. A polarizing element having this anisotropic dye film is excellent in heat resistance, light fastness and polarizing performance.

Dyes for anisotropic dye films, dye compositions for anisotropic dye films, anisotropic dye films and polarizing elements

Liquid-crystal composition and liquid-crystal display element

A guest host mode liquid crystal composition comprising dichroic dyes and host liquid crystal, wherein said dichroic dyes are at least one member selected from each of the following groups (A), (B) and (C):

Liquid crystal composition and liquid crystal display device

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

Described is a guest host liquid crystal composition comprising as a host liquid crystal a liquid crystal composition containing some of the compounds represented by the formulas (I) to (V) which will be described below; and at least four dichromatic dye compounds. ##STR1##

Guest host liquid crystal composition

A liquid crystal composition comprising a fluorine liquid crystal material and at least one azo dichroic dye selected from each of the groups (A), (B), (C) and (D) represented by the following general formulae (I)-(IV): ##STR1##

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Kanagawa, Japan

Masami Kadowaki