公开(公告)号：US4293434A

公开(公告)日：1981-10-06

申请号：US11952

申请日：1979-02-13

申请人： Hans-Joachim Deutscher ,  Herrmann Schubert ,  Christina Seidel ,  Dietrich Demus ,  Horst Kresse

发明人： Hans-Joachim Deutscher ,  Herrmann Schubert ,  Christina Seidel ,  Dietrich Demus ,  Horst Kresse

IPC分类号： C09K19/30 ,  C09K19/60 ,  C09K3/34 ,  G02F1/13

CPC分类号： C09K19/60 ,  C09K19/3068

摘要： The invention describes nematic compositions for electrooptical devices for modulation of the transmitted or incident light and for the rendition of numbers, symbols and images as orientation in the spectroscopy and gas chromatography. The compositions comprise, liquid crystalline compounds such as dyestuffs and at least one of the compound having the following general formula: ##STR1## wherein ##STR2##

摘要翻译： 本发明描述了用于电透光装置的用于调制透射或入射光的向列组合物，以及用于在光谱和气相色谱中作为取向的数字，符号和图像的再现。 组合物包含液晶化合物如染料和至少一种具有以下通式的化合物：其中R1 = CnH2n + 1，n = 1至9R2 = CnH2n + 1，CnH2n + 10， CnH2n + 1COO，CnH2n + 1OC00，n = 1〜9 CNCl，Br，C2H4CN R3 = H，CH3，C2H5，Cl，Br，CN，CH2CH + TR R4 = CnH2n + 1，CnH2n + 10N = 1〜9。

公开(公告)号：US4252417A

公开(公告)日：1981-02-24

申请号：US48084

申请日：1979-06-13

申请人： Terry J. Scheffer ,  Hans R. Zeller

发明人： Terry J. Scheffer ,  Hans R. Zeller

IPC分类号： C09K19/54 ,  C09K19/60 ,  G02F1/1347 ,  G02F1/137 ,  G02F1/139 ,  G02F1/133

CPC分类号： G02F1/13725 ,  C09K19/36 ,  C09K19/60

摘要： A liquid crystal display is described for displaying dark signs on a light background in accordance with the guest-host principle without polarizers. The display includes parallel plates the insides of which are provided with an orientation layer which produces a homoeotropic orientation in an adjacent liquid crystal mixture. The liquid crystal mixture is formed primarily of a nematic liquid crystal having a high negative dielectric anisotropy and, secondarily, of an optically active substance. The proportion of the optically active substance is smaller than the quantity which would cause a spontaneous formation of a twisted structure in the liquid crystal mixture in the field-free state. The liquid crystal mixture is thus homoeotropically oriented and transparent throughout in the field-free regions, and is planar-cholesteric and absorbing in the activated regions.

摘要翻译： 描述了一种液晶显示器，用于在没有偏振器的情况下根据客人主机在浅色背景上显示黑色符号。 显示器包括平行板，其内侧设置有在相邻液晶混合物中产生同方向取向的取向层。 液晶混合物主要由具有高负介电各向异性的向列型液晶形成，其次由光学活性物质形成。 光学活性物质的比例小于在无场态下在液晶混合物中自发形成扭曲结构的量。 因此，液晶混合物在无场区域中均匀定向和透明，并且在激活区域中是平面胆甾醇型和吸收型。

公开(公告)号：US4141627A

公开(公告)日：1979-02-27

申请号：US757374

申请日：1977-01-06

申请人： Allen Bloom

发明人： Allen Bloom

IPC分类号： C09B29/01 ,  C09K19/60 ,  C09K3/34

CPC分类号： C09B29/0014 ,  C09K19/60

摘要： Novel dyes of the formula ##STR1## wherein X can be hydrogen, alkyl, alkoxy, cyano, nitro, dialkylamino, halogen or --N.dbd.N--Y and Y can be phenyl, phenyl substituted in the para position with an alkyl, alkoxy, cyano, nitro, dialkylamino or halogen group, or a heterocyclic ring, can be added to known liquid crystal compositions to impart color to the mixtures and improved contrast to a liquid crystal electro-optic device containing such mixtures.

摘要翻译： 其中X可以是氢，烷基，烷氧基，氰基，硝基，二烷基氨基，卤素或-N = NY和Y的新型染料可以是苯基，在对位被烷基，烷氧基，氰基， 硝基，二烷基氨基或卤素基团或杂环可以加入到已知的液晶组合物中以赋予混合物的颜色，并提高与含有这种混合物的液晶电光装置的对比度。

公开(公告)号：US4137193A

公开(公告)日：1979-01-30

申请号：US809276

申请日：1977-06-23

申请人： Maged A. Osman ,  Terry J. Scheffer

发明人： Maged A. Osman ,  Terry J. Scheffer

IPC分类号： C09B29/00 ,  C09B31/06 ,  C09B35/06 ,  C09B35/14 ,  C09B55/00 ,  C09K19/60 ,  G02F1/13 ,  C09K3/34

CPC分类号： C09B29/00 ,  C09B29/0088 ,  C09B31/06 ,  C09B35/06 ,  C09B35/14 ,  C09B55/00 ,  C09K19/601

摘要： In a cholesteric guest-host liquid crystal composition having a positive dielectric anisotropy and consisting of a nematic host component with a dye incorporated as a guest component therein and an optically active (cholesteric) component, the improvement consisting of a substantially stable and water insoluble azo dye guest component having a pleochroic ratio a.sub.1 /a.sub.2 of at least 6.5 and an absorption maximum in the range of from 350 to 700 nm, said azo dye being a compound of the formula (1)X -- A -- N .dbd. N -- B -- Y (I)wherein A is selected from the group consisting of 1,4-phenylene, 2-hydroxy-1,4-naphthylene and 2-hydroxy-8-amino-1,4-naphthylene; B is selected from the group consisting of 1,4-phenylene, 1,5-naphthylene and 5-substituted benzothiazo-(1,3)-2-yl; X is selected from the group consisting of nitro, nitrile, dimethylamino, di(hydroxyethyl)-amino, phenyl and straight chain C.sub.1 -C.sub.10 alkyl, and Y is a monovalent organic radical that does not promote water solubility in the dye molecule.

摘要翻译： 在具有正介电各向异性并由向列主体成分组成的胆酰型客体主体液晶组合物中，其中引入作为客体成分的染料和光学活性（胆甾型）组分，其改进包括基本稳定的水不溶性偶氮 所述偶氮染料是式（1）的化合物，X-A-N = N-B - 的化合物，其中多色性比a1 / a2至少为6.5，吸收最大值为350-700nm， Y（I）其中A选自1,4-亚苯基，2-羟基-1,4-亚萘基和2-羟基-8-氨基-1,4-亚萘基; B选自1,4-亚苯基，1,5-亚萘基和5-取代的苯并噻唑 - （1,3）-2-基; X选自硝基，腈，二甲基氨基，二（羟乙基） - 氨基，苯基和直链C1-C10烷基，Y是不促进染料分子中水溶性的一价有机基团。

公开(公告)号：US4122027A

公开(公告)日：1978-10-24

申请号：US739629

申请日：1976-11-08

申请人： Herbert S. Cole, Jr. ,  Siegfried Aftergut

发明人： Herbert S. Cole, Jr. ,  Siegfried Aftergut

IPC分类号： C09K19/60 ,  G03C7/333 ,  C09K3/34 ,  G02F1/13

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。

公开(公告)号：US4105299A

公开(公告)日：1978-08-08

申请号：US786488

申请日：1977-04-11

申请人： William A. Huffman ,  Harvey A. Brown

发明人： William A. Huffman ,  Harvey A. Brown

IPC分类号： C09K19/60 ,  G02F1/13 ,  C09K3/34

CPC分类号： C09K19/60

摘要： Methine 4-nitro-arylidene dyes having certain substituents in the 2 position of the arylidene group are found to be pleochroic and to form guest-host combinations with dielectrically positive anisotropic nematic liquid crystals. These combinations are employed in electro-optical display devices.

摘要翻译： 发现在亚芳基的2位具有某些取代基的甲基4-硝基 - 亚芳基染料是多色性的，并且与介电性各向异性向列型液晶形成客体 - 主体组合。 这些组合用于电光显示装置。

公开(公告)号：US3597044A

公开(公告)日：1971-08-03

申请号：US3597044D

申请日：1968-09-03

申请人： RCA CORP

发明人： CASTELLANO JOSEPH A

IPC分类号： C09K19/60 ,  G02F1/137 ,  G02F1/34

CPC分类号： G02F1/13743 ,  C09K19/60

摘要： The light modulator is comprised of a nematic liquid crystal composition of p-acyloxybenzylidene anils and means for applying an electric field across the composition.

公开(公告)号：US12085742B2

公开(公告)日：2024-09-10

申请号：US16582372

申请日：2019-09-25

申请人： FUJIFILM Corporation

发明人： Yumi Katou ,  Shinichi Morishima ,  Wataru Hoshino ,  Jun Takeda ,  Kengo Saito ,  Yuzo Fujiki

IPC分类号： G02B5/22 ,  C09B31/043 ,  C09B31/153 ,  C09B31/20 ,  C09B67/22 ,  C09K19/38 ,  C09K19/60 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/1337

CPC分类号： G02B5/3016 ,  C09B31/043 ,  C09B31/153 ,  C09B31/20 ,  C09B67/0046 ,  C09K19/3838 ,  C09K19/601 ,  G02B5/22 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/133723 ,  C09K2323/03 ,  C09K2323/031 ,  G02F2202/04

摘要： An object of the invention is to provide an anisotropic light absorption film having both a high alignment degree and high light resistance, and a laminate provided using the anisotropic light absorption film. An anisotropic light absorption film according to the embodiment of the invention is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a compound represented by Formula (I) or a polymer thereof, the first dichroic azo dye has a solution absorption maximum wavelength of 400 nm or greater and less than 550 nm, the second dichroic azo dye has a solution absorption maximum wavelength of 550 nm or greater and 750 nm or less, and the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein.

公开(公告)号：US12065605B2

公开(公告)日：2024-08-20

申请号：US17684988

申请日：2022-03-02

申请人： FUJIFILM Corporation

发明人： Takashi Katou ,  Yoshiaki Takada ,  Keigo Shiga ,  Kengo Saito

IPC分类号： G02F1/1333 ,  C09K19/24 ,  C09K19/38 ,  C09K19/60

CPC分类号： C09K19/24 ,  C09K19/3852 ,  C09K19/601 ,  C09K2219/03

摘要： Provided is a liquid crystal composition capable of forming a light absorption anisotropic film with excellent light resistance, a dichroic material, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a liquid crystal compound and a dichroic material having a structure represented by Formula (1).

公开(公告)号：US12049583B2

公开(公告)日：2024-07-30

申请号：US18156670

申请日：2023-01-19

申请人： Mitsubishi Chemical Corporation

发明人： Kei Takeshita ,  Yasushi Shiga ,  Seiji Akiyama ,  Masami Kadowaki ,  Terutsune Osawa ,  Junichi Oizumi ,  Yoshie Takami ,  Souya Kojima

IPC分类号： G02F1/1333 ,  C09B29/40 ,  C09B31/043 ,  C09K19/38 ,  C09K19/60 ,  G02B5/30

CPC分类号： C09K19/601 ,  C09B29/3608 ,  C09B31/043 ,  C09K19/3895 ,  G02B5/3016

摘要： A compound of formula (1) or (11):

X-A1-(N═N-A2)n-N═N-A3-Y  (1)

X-A41-(N═N-A42)n-N═N-A43-Y  (11),



-A1- and -A2- being independently a divalent group of an S-containing aromatic heterocyclic ring, with no adjacent non-carbons in the ring, a divalent group of a benzisothiazole ring, or a divalent group of an aromatic hydrocarbon ring, -A3- being a divalent group of an aromatic hydrocarbon ring, —X is a branched alkyl, alkoxy, or alkylsulfanyl group having 3 or more carbon atoms, —Y is a monovalent organic group, n is 1, 2, or 3, when n is 2 or 3, a plurality of -A2-s and/or -A42-s optionally differing, wherein -A1- and -A2- are not both a divalent group of an aromatic hydrocarbon ring, at least one -A42- is a divalent group of an S-containing aromatic heterocyclic ring, -A41- and -A43- are independently a divalent group of an aromatic hydrocarbon ring.