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    • 1. 发明授权
    • Liquid crystal composition and liquid crystal display device
    • 液晶组成和液晶显示装置
    • US08110256B2
    • 2012-02-07
    • US12490088
    • 2009-06-23
    • Shigeru KibeMasayuki SaitoHiroyuki Tanaka
    • Shigeru KibeMasayuki SaitoHiroyuki Tanaka
    • C09K19/30C09K19/34C09K19/12C09K19/20
    • C09K19/3402C09K19/20C09K19/3066C09K19/42C09K2019/0466C09K2019/3422Y10T428/10
    • A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition having a nematic phase contains a specific five-ring compound having a large maximum temperature as the first component, a specific compound having a small viscosity as the second component, and a specific four-ring compound having a high maximum temperature as the third component. The liquid crystal display device contains the liquid crystal composition.
    • 提供一种液晶组合物,其满足向列相的最高上限温度,向列相的低最低温度,小粘度,大光学各向异性,大介电各向异性,大介电常数各向异性等特性中的至少一种特性 大的电阻率,对紫外线的高稳定性和高的热稳定性,或者至少两个特性适当平衡。 提供了具有短的响应时间,大的电压保持率,大的对比度,长的使用寿命等的AM装置。 具有向列相的液晶组合物含有作为第一成分的具有最大温度最高的特定的五环化合物,作为第二成分的粘度小的具体化合物和具有最高温度的最高温度的特定的四环化合物 第三部分。 液晶显示装置含有液晶组合物。
    • 2. 发明授权
    • Liquid crystal composition and liquid crystal display device
    • 液晶组成和液晶显示装置
    • US07879414B2
    • 2011-02-01
    • US12403867
    • 2009-03-13
    • Masayuki SaitoShigeru KibeNorikatsu HattoriHiroyuki Tanaka
    • Masayuki SaitoShigeru KibeNorikatsu HattoriHiroyuki Tanaka
    • C09K19/34C09K19/30C09K19/20C09K19/12
    • C09K19/42C09K19/3402C09K2019/0466C09K2019/123C09K2019/3004C09K2019/301C09K2019/3016C09K2019/3021C09K2019/3025C09K2019/3422G02F2001/13706Y10T428/10
    • A liquid crystal composition having a nematic phase that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) to (1-3), and the second component is at least one compound selected from the group of compounds represented by formula (2): wherein R1 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R2 and R3 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A, ring B and ring C are each independently 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene; Z1 and Z2 are each independently a single bond, ethylene, carbonyloxy or difluoromethyleneoxy, provided that at least one of Z1 and Z2 is difluoromethyleneoxy; Z3 and Z4 are each independently a single bond, ethylene or carbonyloxy; X1, X2, X3, X4, X5, X6, X7 and X8 are each independently hydrogen or fluorine; Y1 is fluorine, chlorine or trifluoromethoxy; and m is 0, 1 or 2.
    • 一种具有向列相的液晶组合物,其具有两个成分,其中,所述第一成分为选自式(1-1)〜(1-3)所示的化合物的族群中的至少一种化合物,第二成分为至少 一种选自式(2)表示的化合物的化合物:其中R 1是具有1至12个碳的烷基,具有1至12个碳的烷氧基或具有2至12个碳的烯基; R2和R3各自独立地为具有1至12个碳的烷基,具有1至12个碳的烷氧基,具有2至12个碳的烯基或具有2至12个碳的烯基,其中任意的氢被氟取代; 环A,环B和环C各自独立地为1,4-亚环己基,1,4-亚苯基或2-氟-1,4-亚苯基,2,5-二氟-1,4-亚苯基; Z1和Z2各自独立地为单键,乙烯,羰氧基或二氟亚甲基氧基,条件是Z1和Z2中的至少一个是二氟亚甲基氧基; Z 3和Z 4各自独立地为单键,乙烯或羰氧基; X1,X2,X3,X4,X5,X6,X7和X8各自独立地为氢或氟; Y1是氟,氯或三氟甲氧基; m为0,1或2。