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    • 5. 发明授权
    • Pleochroic azo dyes, a liquid crystal composition containing the azo
dyes and a display device using the liquid crystal composition
    • 多色偶氮染料,含有偶氮染料的液晶组合物和使用该液晶组合物的显示装置
    • US4493532A
    • 1985-01-15
    • US442057
    • 1982-11-16
    • Masaharu KanekoTetsuo OzawaTomio YoneyamaShuji ImazekiAkio MukohMikio Sato
    • Masaharu KanekoTetsuo OzawaTomio YoneyamaShuji ImazekiAkio MukohMikio Sato
    • C09B29/00C09B31/00C09B43/18C09B43/30C09K19/60G02F1/13C09F9/00C09K3/34
    • C09B43/18C09B29/00C09B31/00C09B43/30C09K19/601
    • Pleochroic azo dyes represented by the formula (I): ##STR1## wherein X represents group --OCOR.sup.1 or --COOR.sup.1 (wherein R.sup.1 represents an alkyl group, an alkoxyalkyl group, an alkoxyphenyl group, an alkylcyclohexyl group, an alkoxyalkylcyclohexyl group, a cycloalkylcyclohexyl group, an alkoxycyclohexyl group, or a phenyl group substituted by a substituent selected from among an alkyl group containing 3 to 18 carbon atoms, an alkoxyalkyl group, a cycloalkyl group, an aryl group, a cyano group, a halogen atom, an acyloxy group, a carboxylic acid ester group, and an arylazo group); Y represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, a cycloalkyl group, an alkoxy group, a nitro group, a cyano group, a carboxylic acid ester group, an acyloxy group, an alkylsulfonyl group, an aryl group, a halogen atom, or group ##STR2## wherein R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, or R.sup.2 and R.sup.3 may be connected to each other to form a nitrogen-containing ring together with the adjacent nitrogen atom; Z.sup.1 to Z.sup.9 each represents a hydrogen atom, a halogen atom, a methyl group, a hydroxy group, a methoxy group or a cyano group, or Z.sup.1, Z.sup.2 and Z.sup.3 may be connected to R.sup.2 or R.sup.3 to form a nitrogen-containing ring, or Z.sup.1 and Z.sup.2, and Z.sup.4 and Z.sup.5, or Z.sup.7 and Z.sup.8 may be connected to each other to form an aromatic ring; at least one of ##STR3## and n represents 0, 1 or 2, a liquid crystal composition containing the pleochroic azo dyes and a display device using the liquid crystal composition.
    • 由式(I)表示的多色偶氮染料:其中X表示-OCOR1或-COOR1基团(其中R1表示烷基,烷氧基烷基,烷氧基苯基,烷基环己基,烷氧基烷基环己基, 环烷基环己基,烷氧基环己基或被选自含有3至18个碳原子的烷基,烷氧基烷基,环烷基,芳基,氰基,卤素原子, 酰氧基,羧酸酯基和芳基偶氮基)。 Y表示氢原子,烷基,烷氧基烷基,环烷基,烷氧基,硝基,氰基,羧酸酯基,酰氧基,烷基磺酰基,芳基,卤素 原子或基团,其中R 2和R 3各自表示氢原子,烷基,烷氧基烷基或R 2和R 3可以彼此连接形成与相邻氮原子一起形成含氮环; Z1〜Z9各自表示氢原子,卤素原子,甲基,羟基,甲氧基或氰基,Z 1,Z 2和Z 3可以与R 2或R 3连接形成含氮环, 或Z 1和Z 2以及Z 4和Z 5或Z 7和Z 8可以彼此连接形成芳香环; + TR 中的至少一个,n表示0,1或2,含有双色偶氮染料的液晶组合物和使用该液晶组合物的显示装置。
    • 9. 发明授权
    • Liquid crystal composition
    • 液晶组成
    • US4600527A
    • 1986-07-15
    • US465391
    • 1983-02-10
    • Shuji ImazekiAkio MukohMikio SatoMasaharu KanekoTomio YoneyamaJunko Iwanami
    • Shuji ImazekiAkio MukohMikio SatoMasaharu KanekoTomio YoneyamaJunko Iwanami
    • C09B29/00C09B31/00C09B35/00C09B43/10C09B43/28C09K19/60G02F1/137G09F9/00G02F1/13
    • C09B29/00C09B31/00C09B35/00C09B43/10C09B43/28C09K19/601
    • A liquid crystal composition containing azo dyes represented by the formula (I.sub.0) ##STR1## wherein X represents ##STR2## A.sup.1 represents --O-- or --NH--, R.sup.1 represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, an aryloxyalkyl group, a dialkylaminoalkyl group, an arylaminoalkyl group, a cycloalkyl group, an alkoxy group, an alkoxyalkoxy group, an arylalkoxy group, an aryl group, a halogen atom or a group of ##STR3## D.sup.1 and D.sup.2 each represents an aromatic group which does not contain an ionic group; U.sup.1 and U.sup.2 each represents a hydrogen atom, a halogen atom, a methyl group, a methoxy group or an ethoxy group;Y.sup.1 represents --O-- or ##STR4## R represents a hydrogen atom, an alkyl group or may be connected to Z.sup.10 to Z.sup.12 to form a ring;Z.sup.4 to Z.sup.12 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, an acylamino group or a cyano group, or Z.sup.4 and Z.sup.5, Z.sup.7 and Z.sup.8, and Z.sup.10 and Z.sup.11 may be connected to each other to form an aromatic ring; andn represents 0, 1 or 2.
    • 含有由式(I0)表示的偶氮染料的液晶组合物,其中X表示A1表示-O-或-NH-,R1表示氢原子,烷基,烷氧基烷基, 芳氧基烷基,二烷基氨基烷基,芳基氨基烷基,环烷基,烷氧基,烷氧基烷氧基,芳基烷氧基,芳基,卤素原子或者每个表示芳基 其不含离子基团; U1和U2各自表示氢原子,卤素原子,甲基,甲氧基或乙氧基; Y1表示-O-或R表示氢原子,烷基或可与Z10至Z12连接形成环; Z4〜Z12各自表示氢原子,卤素原子,烷基,烷氧基,羟基,酰氨基或氰基,或Z4和Z5,Z7和Z8,Z10和Z11可以连接到 彼此形成芳环; n表示0,1或2。
    • 10. 发明授权
    • Guest-host type liquid crystal composition and liquid crystal display
device
    • 宾主型液晶组合物和液晶显示装置
    • US4483593A
    • 1984-11-20
    • US359513
    • 1982-03-18
    • Shuji ImazekiAkio MukohMikio SatoSeiichi ImahoriMasaharu KanekoTetsuo Ozawa
    • Shuji ImazekiAkio MukohMikio SatoSeiichi ImahoriMasaharu KanekoTetsuo Ozawa
    • C09B1/22C09B31/043C09B31/062C09K19/60G02F1/13G09F9/00G09F9/35C09K3/34
    • C09B1/22C09B31/043C09B31/062C09K19/603
    • The present liquid crystal composition is characterized by containing a dye of anthraquinone series represented by the following general formula (1) dissolved as a guest in a host liquid crystal: ##STR1## wherein R represents an alkyl group or a cycloalkyl group. The alkyl group or the cycloalkyl group of the dye of anthraquinone series includes those substituted by alkyl, hydroxyl, alkoxy, cycloalkyl, aryl, aryloxy, dialkylamino, or heterocyclic residue. Furthermore, the liquid crystal composition can contain two or more other kinds of the dye of anthraquinone series, or can be used in combination with other dyes. In the dye of anthraquinone series, the group --COOR at the 2-position and the group --CN at the 3-position are particularly important for realization of cyan color and a high S value.The dye of anthraquinone series is particularly effective for preparation of a black dye.The present liquid crystal display device is characterized by comprising a liquid crystal cell comprising two transparent juxtaposed substrate plates, transparent electrodes formed each on the opposite inner surfaces of the substrate plates, alignment films formed each on the opposite inner surfaces of the substrate plates to cover the transparent electrodes and align liquid crystal molecules, sealing members for keeping the two substrate plates at a predetermined distance, a liquid crystal composition containing the dye represented by the said general formula (1) being filled in the liquid crystal cell, and a light source being provided outside the liquid crystal cell.
    • 本液晶组合物的特征在于,在主液晶中含有作为客体溶解的下述通式(1)表示的蒽醌系染料:其中,R表示烷基或环烷基。 蒽醌系染料的烷基或环烷基包括被烷基,羟基,烷氧基,环烷基,芳基,芳氧基,二烷基氨基或杂环残基取代的烷基或环烷基。 此外,液晶组合物可以含有两种以上其它种类的蒽醌系染料,也可以与其它染料组合使用。 在蒽醌系染料中,2-位上的-COOR基和3-位的基团-CN对于实现青色和高S值是特别重要的。 蒽醌系列的染料对于制备黑色染料是特别有效的。 本液晶显示装置的特征在于包括一个液晶单元,该液晶单元包括两个透明的并置的基板,每个在基板的相对的内表面上形成的透明电极,每个在基板的相对的内表面上形成的取向膜覆盖 透明电极和对准液晶分子,用于将两个基板保持在预定距离的密封构件,将含有由所述通式(1)表示的染料的液晶组合物填充在液晶单元中,以及光源 设置在液晶单元的外部。