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    • 71. 发明申请
    • Liquid crystal composition and liquid crystal display element
    • US20050230661A1
    • 2005-10-20
    • US11108002
    • 2005-04-14
    • Norikatsu HattoriHitoshi Yamamoto
    • Norikatsu HattoriHitoshi Yamamoto
    • G02F1/13C09K19/12C09K19/30C09K19/42
    • C09K19/3066C09K19/3001Y10T428/10Y10T428/1005
    • An advantage of the present invention is to provide a liquid crystal composition, which satisfies two or more of characteristics such as a wide nematic phase temperature range, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, and a large specific resistance. One aspect of the invention is to provide a liquid crystal composition having properly balanced characteristics. Another aspect of the invention is to provide a liquid crystal display element, which includes such a composition to have a large voltage holding ratio. A further aspect of the invention is to provide an AM element, which includes a composition having characteristics such as a small viscosity, an optical anisotropy of 0.05 to 0.11, and a dielectric anisotropy of −6.5 to −2.0, and is suitable for a VA mode, an IPS mode, etc. A liquid crystal composition with a negative dielectric anisotropy, comprising at least one compound selected from the group of compounds represented by the following formula (1) as a first component, and at least one compound selected from the group of compounds represented by the following formulas (2-1) to (2-3) and (3-1) to (3-4) as a second component: wherein R1 is alkyl or alkenyl; R2is alkyl, alkenyl, or alkoxy; R3 is alkyl, alkenyl, alkoxy, or —COO—R4, in which R4 is alkyl; R5 is alkyl, alkenyl, alkoxy, or alkoxymethyl; Z1 and Z2 are independently a single bond, —CH2O—, —OCH2—, —(CH2)2—, —(CH2)4—, —CF2O—, —OCF2—, —C2H4CF2O—, —C2H4OCF2—, —CF2OC2H4—, or —OCF2C2H4—, Z3 is a single bond or —COO—; A1 is 1,4-cyclohexylene or 1,4-phenylene; A2 and A3 are independently 1,4-cyclohexylene, 1,4-phenylene, 1,4-phenylene in which any hydrogen may be replaced by fluorine, or 2-difluoromethyl-3-fluoro-1,4-phenylene; A4 is 1,4-cyclohexylene, 1,4-phenylene, or 1,4-phenylene in which a hydrogen is replaced by a fluorine; A5 is 1,4-phenylene or 1,4-phenylene in which a hydrogen is replaced by a fluorine; A6is 2-fluoro-1,4-phenylene; n is 0 or 1; in the formula (1), when n is 0, A2 is 2-difluoromethyl-3-fluoro-1,4-phenylene, and Z2 is a single bond; and in the formula (1), when n is 1, one of A2 and A3 is 2-difluoromethyl-3-fluoro-1,4-phenylene, and one of Z1 and Z2 is a single bond.
    • 76. 发明授权
    • Liquid crystal composition and liquid crystal display device
    • 液晶组成和液晶显示装置
    • US08357436B2
    • 2013-01-22
    • US13060053
    • 2009-08-25
    • Masayuki SaitoNorikatsu Hattori
    • Masayuki SaitoNorikatsu Hattori
    • C09K19/34C09K19/30C09K19/32C09K19/12C09K19/20
    • C09K19/3402C09K19/3003C09K19/3066C09K19/3068C09K19/42C09K2019/3422C09K2019/3425Y10T428/10
    • The subject is to provide a liquid crystal composition that satisfies at least one characteristic of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.The invention provides a liquid crystal composition having a negative dielectric anisotropy that includes a specific compound having 1-pyran-2,5-dyil as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component , and provides a liquid crystal display device containing the composition.
    • 本发明提供一种液晶组合物,其满足以下特征的至少一种特性:向列相的最高的最高温度,向列相的低最低温度,小粘度,适当的光学各向异性,负极大的电介质 各向异性,电阻率大,对紫外线的稳定性高,对热的稳定性高,或者对于其两个特性适当平衡。 本发明提供一种具有短的响应时间,大的电压保持率,大的对比度,长的使用寿命等的AM装置。 本发明提供具有负介电各向异性的液晶组合物,其具有作为第一成分的具有1-吡喃-2,5-二胺的特定化合物,作为第二成分具有负的大的介电各向异性的特定化合物, 含有组合物的液晶显示装置。
    • 77. 发明授权
    • Liquid crystal composition and liquid crystal display device
    • 液晶组成和液晶显示装置
    • US08313670B2
    • 2012-11-20
    • US13005918
    • 2011-01-13
    • Norikatsu HattoriEriko Kurihara
    • Norikatsu HattoriEriko Kurihara
    • C09K19/00C09K19/02C09K19/06C09K19/52G02F1/1333
    • C09K19/3068C09K19/3001C09K19/3066C09K19/3402C09K2019/3004C09K2019/3078C09K2019/308C09K2019/3422C09K2019/3425Y10T428/10Y10T428/1036
    • The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance and a high stability to ultraviolet light or heat, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide a AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition that has negative dielectric anisotropy, including a specific four-ring compound having a high maximum temperature and a negatively large dielectric anisotropy as a first component, a two-ring compound having a small viscosity as a second component, and optionally including a specific compound having a negatively large dielectric anisotropy as a third component, a specific compound having small viscosity as a fourth component and a specific compound having a negatively large dielectric anisotropy as a fifth component. The invention provides also a liquid crystal display device containing this composition.
    • 本发明提供一种液晶组合物,其满足以下特征中的至少一种:向列相的最高的最高温度,向列相的低最低温度,小粘度,适当的光学各向异性,负大的介电各向异性 ,对紫外线或热的大电阻和高稳定性,或者对于至少两种特性适当平衡。 本发明的目的在于提供一种响应时间短,电压保持率大,对比度大,使用寿命长等的AM装置。 本发明提供了具有负介电各向异性的液晶组合物,其包括作为第一组分具有高的最高温度和负的大的介电各向异性的特定的四环化合物,作为第二组分的粘度小的二环化合物, 并且任选地包括具有负的大的介电各向异性的特定化合物作为第三组分,作为第四组分的具有小的粘度的具体化合物和具有负的大的介电各向异性的具体化合物作为第五组分。 本发明还提供含有该组合物的液晶显示装置。
    • 80. 发明授权
    • Liquid Crystal composition and liquid crystal display device
    • 液晶组成和液晶显示装置
    • US08211332B2
    • 2012-07-03
    • US12639756
    • 2009-12-16
    • Norikatsu HattoriSubaru Kawasaki
    • Norikatsu HattoriSubaru Kawasaki
    • C09K19/00C09K19/06C09K19/36C09K19/52
    • C09K19/3402C09K19/42C09K2019/0407C09K2019/0411C09K2019/123C09K2019/3016C09K2019/3025C09K2019/3422Y10T428/10
    • The subject is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject is to provide an AM device that has a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and so forth.The invention provides a liquid crystal composition having a negative dielectric anisotropy that contains a specific compound having a negatively large dielectric anisotropy as a first component, and a two-ring compound having a low viscosity as a second component, and may contain a specific compound having a low viscosity as a third component and/or a specific compound having a negatively large dielectric anisotropy as a fourth component, and provide a liquid crystal display device containing the composition.
    • 本发明提供一种液晶组合物,其满足向列相的最高最高温度,向列相的低最低温度,低粘度,适当的光学各向异性,负极大电介质等特性中的至少一个特性 各向异性,电阻率大,对紫外线的稳定性高,对热的稳定性高,或者两个以上的特性适当平衡。 本发明的目的是提供一种具有短的响应时间,高电压保持率,高对比度,长使用寿命等的AM器件。 本发明提供一种具有负介电各向异性的液晶组合物,其含有作为第一组分的具有负的大的介电各向异性的特定化合物和具有低粘度的二环化合物作为第二组分,并且可以含有具有 作为第三成分的低粘度和/或具有负的大的介电各向异性的特定化合物作为第四成分,并且提供含有该组合物的液晶显示装置。