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    • 8. 发明授权
    • Multi-color liquid crystal display and system
    • 多色液晶显示及系统
    • US4581608A
    • 1986-04-08
    • US503981
    • 1983-06-13
    • Siegfried AftergutHerbert S. ColeJohn E. BigelowAlfred O. Saupe
    • Siegfried AftergutHerbert S. ColeJohn E. BigelowAlfred O. Saupe
    • G02F1/133G02F1/1334G02F1/1347G09G1/28
    • G02F1/13475G02F1/13306G02F1/1334
    • A multi-color liquid crystal display has a one-dimensional or two-dimensional array of at least one display cell, with a plurality of different liquid crystal host/guest dichroic dye compositions in each cell. Each of the different liquid crystal compositions may be provided within separate microcapsules, with the totality of micro-capsules being blended to provide the total composition filling the cell volume or dielectric spacers may be utilized to divide the volume of each display cell into a like plurality of subvolumes, each containing a different liquid crystal material. Liquid crystal hosts of substantially-constant or variable dielectric anisotropy magnitude and polarity are selected to cause different ones of the plurality of compositions within a cell to switch between transmission and absorption of various visible-wavelengths regions as the frequency and amplitude of an electric field within the cell is varied by control electronics of a display system.
    • 多色液晶显示器具有至少一个显示单元的一维或二维阵列,每个单元中具有多个不同的液晶主机/客体二色性染料组合物。 各种不同的液晶组合物可以设置在分开的微胶囊内,微胶囊的总量被混合以提供填充细胞体积的总组合物,或者介电间隔物可用于将每个显示细胞的体积分成多个 的子体积,每个含有不同的液晶材料。 选择具有基本恒定或可变的介电各向异性大小和极性的液晶主机,以使单元内的多个组合物中的不同组合物在各种可见波长区域的透射和吸收之间切换,作为其中的电场的频率和振幅 电池由显示系统的控制电子装置变化。
    • 9. 发明授权
    • Dichroic liquid crystal compositions made with asymmetric tris-azo dyes
    • 用不对称三偶氮染料制成的二色性液晶组合物
    • US4411812A
    • 1983-10-25
    • US320281
    • 1981-11-12
    • Siegfried AftergutHerbert S. Cole
    • Siegfried AftergutHerbert S. Cole
    • C09B31/16C09B31/18C09B31/28C09K19/60G02F1/137G02F1/13C09K3/34
    • C09B31/28C09B31/18C09K19/601
    • Novel asymmetric tris-azo dye compositions and a liquid crystal composition containing the asymmetric tris-azo dye compositions are disclosed. The asymmetric dye compositions having asymmetric terminal groups have the general formula: ##STR1## wherein R.sub.1 is one of the three following groups: ##STR2## 5-nitrothiazolyl group, 4-cyanophenyl group, and 4-nitrophenyl; wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are selected from the group consisting of hydrogen, alkyl, halogen and alkoxy, and R.sub.6 is selected from the group consisting of N,N-diethylamino-3-methylphenyl; N,N-diethylamino-3-methylphenyl; N,N-diethylamino-3,5-dimethylphenyl; 2-pentylperimidyl; N-ethylamino-1-naphthyl; N,N-dimethylamino-1-naphthyl; and N,N-diethylamino-1-naphthyl. When the asymmetric tris-azo dichroic dyes are used as a guest in a host liquid crystal material, they form a novel liquid crystal composition for use in liquid crystal displays.
    • 公开了新的不对称三偶氮染料组合物和含有不对称三偶氮染料组合物的液晶组合物。 具有不对称端基的不对称染料组合物具有以下通式:其中R 1是以下三个基团之一:5-硝基噻唑基,4-氰基苯基和4-硝基苯基; 其中R2,R3,R4和R5选自氢,烷基,卤素和烷氧基,R6选自N,N-二乙基氨基-3-甲基苯基; N,N-二乙基氨基-3-甲基苯基; N,N-二乙基氨基-3,5-二甲基苯基; 2-戊基哌啶基; N-乙基氨基-1-萘基; N,N-二甲基氨基-1-萘基; 和N,N-二乙基氨基-1-萘基。 当不对称三偶氮二色性染料用作主体液晶材料中的客体时,它们形成用于液晶显示器的新型液晶组合物。