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公开(公告)号：US4350603A
公开(公告)日：1982-09-21
申请号：US164254
申请日：1980-06-30
CPC分类号： C09B35/35 , C09K19/601
摘要： Novel tris-azo dye compositions and a liquid crystal composition containing the tris-azo dye compositions are disclosed. The tris-azo dye composition having terminal aromatic groups has the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are various aromatic compounds including aromatic amines, substituted aromatic amines, hydroxy-substituted aromatic compounds and substituted hydroxy-containing aromatic compounds. When the tris-azo dichroic dyes are used as a guest dye in a host liquid crystal material, they form a novel liquid crystal composition for use in liquid crystal displays. Examples of R.sub.1 and R.sub.2 include organic radicals of aminoquinoline, tetrahydroquinoline, N-ethyl-1-naphthylamine and 1,8-diaminonaphthalene.
摘要翻译： 公开了新的三偶氮染料组合物和含有三偶氮染料组合物的液晶组合物。 具有末端芳族基团的三偶氮染料组合物具有以下通式：其中R1和R2是各种芳族化合物，包括芳族胺，取代的芳族胺，羟基取代的芳香族化合物和取代的含羟基的芳族化合物。 当三偶氮二色性染料用作主体液晶材料中的客体染料时，它们形成用于液晶显示器的新型液晶组合物。 R 1和R 2的实例包括氨基喹啉，四氢喹啉，N-乙基-1-萘胺和1,8-二氨基萘的有机基团。
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公开(公告)号：US4378302A
公开(公告)日：1983-03-29
申请号：US217267
申请日：1980-12-16
摘要： Liquid crystal compositions having guest perylene-based dichroic dyes dissolved therein. The perylene dichroic dyes have symmetrically-disposed substituents which are preferably a group forming with the 3,4 and 9, 10 carbons, respectively, a 5 or 6 membered cyclic ring which is substituted by, or fused to, a phenyl ring. The perylene-based dyes of the invention can be used alone or with other compatible dyes as guest dyes to form various colors for coloring the host liquid crystal compositions.
摘要翻译： 在其中溶解有苝基二色性染料的液晶组合物。 苝二色性染料具有对称排列的取代基，其优选为分别具有3,4和9,10个碳的基团，其被苯环取代或与苯环稠合的5或6元环。 本发明的苝类染料可以单独使用或与其它相容的染料一起使用，作为客体染料，以形成用于着色主体液晶组合物的各种颜色。
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3.发明授权Dichroic liquid crystal composition with 4,4-bis (substituted naphthylazo)azobenzene dichroic dyes 失效二色液晶组合物与4,4-双（取代萘偶氮）偶氮苯二色染料
公开(公告)号：US4122027A
公开(公告)日：1978-10-24
申请号：US739629
申请日：1976-11-08
CPC分类号： C09K19/601 , G03C7/3335
摘要： Dichroic dyes of the 4,4'-Bis-(substituted naphthylazo)azobenzene type, each having three azo (--N.dbd.N--) bonding groups, provide a high order parameter in excess of 0.70, when dissolved in liquid crystal mixtures to provide contrast ratios on the order of 10:1.
摘要翻译： 当溶解在液晶混合物中时，具有三个偶氮（-N = N-）键合基团的4,4'-双 - （取代萘基偶氮）偶氮苯的二色性染料提供超过0.70的高阶参数 对比度约为10：1。
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公开(公告)号：US3983049A
公开(公告)日：1976-09-28
申请号：US466384
申请日：1974-05-02
CPC分类号： C09K19/54
摘要： Non-liquid crystal additives to negative dielectric anisotropy liquid crystals produce a positive dielectric anisotropy. Criteria for empirically determining suitable additives are disclosed. The general structure of suitable compounds is: ##SPC1##Wherein Z is a divalent radical, n is an integer having a value of 1 to 2; X, X', Y, Y' occupy only meta- and para-positions; X and X' are either electron withdrawing polar groups or hydrogen; Y and Y' are either electron repelling polar groups or hydrogen; at least one of X, X', Y and Y' is a polar group and, when only one of X, X', Y and Y' is a polar group, it occupies the para-position.
摘要翻译： 负介电各向异性液晶的非液晶添加剂产生正介电各向异性。 公开了用于经验确定合适的添加剂的标准。 合适化合物的一般结构为：
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公开(公告)号：US4128497A
公开(公告)日：1978-12-05
申请号：US802358
申请日：1977-06-02
CPC分类号： C09K19/601
摘要： Dichroic liquid crystal compositions for use in displays are mixtures of a liquid crystal host material and at least one of a plurality of dyes each having a plurality of azo (--N.dbd.N--) bonding groups and a high order parameter. The dichroic liquid crystal compositions each provide a contrast ratio on the order of 10:1.
摘要翻译： 用于显示器的二色性液晶组合物是液晶主体材料和各自具有多个偶氮（-N = N-）键合基团和高阶参数的多种染料中的至少一种的混合物。 二色性液晶组合物各自提供约10:1的对比度。
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公开(公告)号：US4128496A
公开(公告)日：1978-12-05
申请号：US835044
申请日：1977-09-21
CPC分类号： C09K19/601
摘要： Dichroic liquid crystal compositions, for use in liquid crystal displays, have a host liquid crystal material in which is dissolved one of a plurality of guest dichroic dyes, each having at least one Schiff-base ##STR1## bonding group. The dichroic liquid crystal compositions have a high order parameter, for providing contrast ratios on the order of 10:1 and imparting a yellow color to the display.
摘要翻译： 用于液晶显示器的二色性液晶组合物具有主体液晶材料，其中溶解了多个客体二色性染料之一，每个具有至少一个希夫碱粘合基团。 二色性液晶组合物具有高阶参数，用于提供约10:1的对比度，并向显示器赋予黄色。
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公开(公告)号：US4116861A
公开(公告)日：1978-09-26
申请号：US825660
申请日：1977-08-18
CPC分类号： C09K19/601
摘要： Dichroic liquid crystal compositions for use in displays are mixtures of a liquid crystal host material and at least one of a plurality of stilbene-derivative dichroic dyes each having a vinylidene (--CH.dbd.CH--) group and a high order parameter. The dichroic liquid crystal compositions each provide a contrast ratio on the order of 10:1.
摘要翻译： 用于显示器的二色性液晶组合物是液晶主体材料和各自具有亚乙烯基（-CH = CH-）基团和高级参数的多个二苯乙烯衍生物二色性染料中的至少一种的混合物。 二色性液晶组合物各自提供约10:1的对比度。
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公开(公告)号：US4359398A
公开(公告)日：1982-11-16
申请号：US219087
申请日：1980-12-22
CPC分类号： C09K19/601 , C09B35/35
摘要： Novel tris-azo dyes and a liquid crystal composition containing the tris-azo dyes. The tris-azo dyes are of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are various aromatic groups including aromatic amines, substituted aromatic amines, hydroxy-substituted aromatic groups and substituted hydroxy-containing aromatic groups. When the tris-azo dichroic dyes are used as a guest dye in a host liquid crystal material, they form a novel liquid crystal composition for use in liquid crystal displays.
摘要翻译： 新型三偶氮染料和含有三偶氮染料的液晶组合物。 三偶氮染料具有以下通式：其中R1和R2是各种芳族基团，包括芳族胺，取代的芳族胺，羟基取代的芳族基团和取代的含羟基的芳族基团。 当三偶氮二色性染料用作主体液晶材料中的客体染料时，它们形成用于液晶显示器的新型液晶组合物。
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9.发明授权
公开(公告)号：US4308162A
公开(公告)日：1981-12-29
申请号：US214369
申请日：1980-12-08
IPC分类号： C09B35/08 , C09B35/35 , C09B43/20 , C09K19/60 , G02F1/137 , G09F9/00 , G09F9/35 , C09K3/34 , C09B31/16 , G02F1/13
CPC分类号： C09B35/35 , C09B43/20 , C09K19/601 , Y10S534/01
摘要： Novel yellow azo dye compositions and novel liquid crystal compositions containing the yellow azo dye composition. The yellow azo dye composition, having terminal ester groups, has the general formula: ##STR1## wherein R and R' are alkyl or substituted alkyl wherein the alkyl has at least 4 carbon atoms, aryl, arylalkyl, substituted aryl or substituted arylalkyl. When the yellow azo dichroic dyes are used alone, or in combination with other dyes, as a guest in a host liquid crystal material, they form a novel liquid crystal composition for use in liquid crystal displays. An invention method of improving the black color of dichroic dyes for use in black liquid crystal displays, wherein a dye composition having a mixture of dichroic dyes of various colors and containing at least one yellow azo dichroic dye, as described above, is added to a host liquid crystal material. The mixture of dichroic dyes of various colors must be one which absorbs radiation in the spectral range of about 400-700 nm to produce the substantially black color for use in black liquid crystal displays.
摘要翻译： 新型的黄色偶氮染料组合物和含有黄色偶氮染料组合物的新型液晶组合物。 具有末端酯基的黄色偶氮染料组合物具有以下通式：其中R和R'是烷基或取代的烷基，其中烷基具有至少4个碳原子，芳基，芳基烷基，取代的芳基 或取代的芳基烷基。 当黄色偶氮二色性染料单独使用或与其它染料组合使用时，作为主体液晶材料中的客体，它们形成用于液晶显示器的新型液晶组合物。 一种改进用于黑色液晶显示器中的二色性染料的黑色的发明方法，其中将如上所述将具有各种颜色的二色性染料和至少一种黄色偶氮二色性染料的混合物的染料组合物加入到 主机液晶材料。 各种颜色的二色性染料的混合物必须是在约400-700nm的光谱范围内吸收辐射的混合物，以产生用于黑色液晶显示器的基本黑色。
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公开(公告)号：US4179395A
公开(公告)日：1979-12-18
申请号：US944695
申请日：1978-09-22
CPC分类号： C09K19/601 , C09B35/35 , C09B35/64
摘要： Dichroic liquid crystal compositions for use in displays are mixtures of a liquid crystal host material and at least one of a plurality of dyes each having a plurality of azo (--N.dbd.N--) bonding groups and a high order parameter. The dichroic liquid crystal compositions each provide a contrast ratio on the order of 10:1.
摘要翻译： 用于显示器的二色性液晶组合物是液晶主体材料和各自具有多个偶氮（-N = N-）键合基团和高阶参数的多种染料中的至少一种的混合物。 二色性液晶组合物各自提供约10:1的对比度。
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