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    • 9. 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。
    • 10. 发明授权
    • Composition based on liquid crystal for electro-optical device
    • 基于液晶的组合物用于电光装置
    • US4376715A
    • 1983-03-15
    • US172641
    • 1980-07-25
    • Jacques CognardTrung H. Phan
    • Jacques CognardTrung H. Phan
    • C09B1/02C09B1/20C09B1/22C09B1/26C09B1/36C09B1/50C09B1/503C09B1/51C09K19/60G02F1/137C09K3/00C07C49/68
    • C09B1/50C09B1/20C09K19/603
    • A composition for use in an electro-optical device, particularly a display device, contains anthraquinone pleochroic dye of formula (I): ##STR1## where R.sub.1 is a substituted or unsubstituted amino group or a hydroxy group; each of R.sub.2, R.sub.3 and R.sub.4, which are identical or different, is a hydrogen atom, a substituted or unsubstituted amino group, a hydroxy group or a nitro group; R is a hydrogen or halogen atom or a hydroxy, lower alkyl or lower alkoxy group; n is 1, 2, 3 or 4, the Rs being identical or different when n is 2, 3 or 4; X is a hydrogen or halogen atom, a hydroxy or mercapto group, a straight, branched or cyclic C.sub.1-16 alkyl radical, a substituted or unsubstituted aryl group or a group of formula ##STR2## where R' is a hydrogen atom or a straight, branched or cyclic C.sub.1-10 alkyl residue, and Y is a hydrogen atom or a side chain of the formula: ##STR3## where X', R" and n' have the same definitions as and are respectively identical to or different from X, R and n, the side chain being in position 6 when the compound is substituted in position 2 and in position 7 when it is substituted in position 3.Compounds of formula (I) have a high order parameter and are very stable.
    • 用于电光装置,特别是显示装置的组合物含有式(I)的蒽醌多色染料:其中R1是取代或未取代的氨基或羟基; R 2,R 3和R 4各自相同或不同,为氢原子,取代或未取代的氨基,羟基或硝基; R是氢或卤素原子或羟基,低级烷基或低级烷氧基; n为1,2,3或4,当n为2,3或4时,Rs相同或不同; X是氢或卤素原子,羟基或巯基,直链,支链或环状的C 1-16烷基,取代或未取代的芳基或式OR'的基团,OAr,SR',SAr,COOR' COOCr,COOC6H4R',OOCR',OOCAr,OOCC6H4R',CONHR',CONHAr,NHR',NHAr,NHCOR',NHCOAr,OCOOR',OCOOAr,CHNC6H4R',NCHC6H4R',NNC6H4R'或+ TR 是氢原子或直链,支链或环状的C 1-10烷基残基,Y是氢原子或下式的侧链:其中X',R“和n'具有与 分别与X,R和n相同或不同,当化合物在位置2被取代时,侧链位于6位,当它在位置3被取代时位于第7位。式(I)化合物具有高级 参数非常稳定。