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公开(公告)号：US06812977B1
公开(公告)日：2004-11-02
申请号：US09718138
申请日：2000-11-21
申请人： Masako Iwamatsu , Kenji Nishiguchi , Hideaki Ueda , Nobuyuki Kobayashi , Fumie Motoori , Masakazu Okada , Mitsuyo Matsumoto , Akihito Hisamitsu
发明人： Masako Iwamatsu , Kenji Nishiguchi , Hideaki Ueda , Nobuyuki Kobayashi , Fumie Motoori , Masakazu Okada , Mitsuyo Matsumoto , Akihito Hisamitsu
IPC分类号： G02F1133
CPC分类号： G02F1/13473 , G02F1/133502 , G02F1/13718 , G02F2202/28
摘要： A liquid crystal element of a layered type capable of high contrast is provided. For example, in the liquid crystal element of the layered type including liquid crystal layers b, g and r in this order, each of the liquid crystal layers b, g and r is held between electrode formation surfaces of a pair of substrates each provided with an electrode, an insulating film is disposed between the electrodes of the substrates, and at least two liquid crystal layers of the liquid crystal layers b, g and r have the insulating films opposed to the liquid crystal layers and being different in refractive index from each other, respectively.
摘要翻译： 提供了能够提供高对比度的层叠型液晶元件。例如，在液晶层b，g，r的层叠型液晶元件中，各液晶层b，g， r保持在一对基板的电极形成面之间，各自设置有电极，绝缘膜设置在基板的电极之间，液晶层b，g，r的至少两个液晶层具有绝缘 分别与液晶层相对并且折射率彼此不同的膜。
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公开(公告)号：US06618103B2
公开(公告)日：2003-09-09
申请号：US09846517
申请日：2001-05-01
IPC分类号： G02F11347
CPC分类号： G02F1/13718 , G02F1/13725
摘要： In liquid crystal display element having cholesteric liquid crystal between substrates, being substantially polymer free, integral value in visible wavelength range of {exp−[2(&lgr;−nP)2/&Dgr;n2P2]}R is 40-60% of integral value in visible wavelength range of function f(&lgr;) representing wavelength-light reflectance spectrum in colored state. In liquid crystal display element having liquid crystal composition between substrates, at least one substrate has functional surface contacting liquid crystal composition, the functional layer being capable of adjusting orientated state of liquid crystal molecules close to substrate and different orientated state of liquid crystal molecules remote from substrate. Chiral nematic liquid crystal, of nematic liquid crystal mixture having refractive index anisotropy of 0.2-0.34 and at least one chiral material, exhibits cholesteric phase at room temperature, has phase transition temperature of 60° C. or higher and positive dielectric constant anisotropy, and wavelength of selectively reflected light is from 480-700 nm.
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公开(公告)号：US06602563B2
公开(公告)日：2003-08-05
申请号：US09859906
申请日：2001-05-17
IPC分类号： C09K1920
CPC分类号： C09K19/44 , C09K19/0208 , C09K19/42 , C09K19/46 , G02F1/13718 , Y10T428/10 , Y10T428/1036
摘要： A liquid crystal display which carries out matrix driving of a chiral nematic liquid crystal composition, which is capable of displaying an image theron continuously after an electric field applied thereto is turned off, by applying an electric field to the liquid crystal composition through a plurality of scan electrodes and a plurality of data electrodes which face and cross each other with the liquid crystal composition in-between. The nematic liquid crystal which is the main element of the liquid crystal composition mainly contains a liquid crystalline ester compound, a liquid crystalline stilbene compound, a liquid crystalline terphenyl compound or a liquid crystalline tolane compound. A driving section of the liquid crystal display drives the liquid crystal composition by a driving method which comprises a reset step of applying a reset pulse to cause the liquid crystal composition to come to a homeotropic state, a selection step of applying a selection pulse to select a final state of the liquid crystal composition and an evolution step of applying an evolution pulse to cause the liquid crystal composition to evolve to the selected final state and in which the selection of the final state of the liquid crystal composition is carried out by modulating the selection pulse.
摘要翻译： 执行手性向列型液晶组合物的矩阵驱动的液晶显示器，其能够在施加电场后连续显示图像，通过对液晶组合物施加电场，通过多个 扫描电极和与液晶组合物相互面对并交叉的多个数据电极。 作为液晶组合物的主要成分的向列液晶主要含有液晶酯化合物，液晶二苯乙烯化合物，液晶三联苯化合物或液晶陶瓷化合物。 液晶显示器的驱动部分通过驱动方法驱动液晶组合物，该驱动方法包括施加复位脉冲以使液晶组合物达到垂直状态的复位步骤，施加选择脉冲以选择的选择步骤 液晶组合物的最终状态和施加放电脉冲以使液晶组合物放出到所选择的最终状态的演化步骤，并且其中通过调节液晶组合物的最终状态的选择来进行 选择脉冲。
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公开(公告)号：US06348961B1
公开(公告)日：2002-02-19
申请号：US09370427
申请日：1999-08-09
IPC分类号： G02F113
摘要： A reflective type liquid crystal display which has a liquid crystal composition exhibiting a cholesteric phase in a room temperature and a columnar structure between substrates with ITO electrodes thereon. The liquid crystal composition is a chiral nematic liquid crystal composition which is produced by adding a chiral agent at a ratio within a range from 10 wt % to 45 wt % to nematic liquid crystal which contains a nematic liquid crystal component with a polar group at not less than 25 wt % and of which transition temperature to isotropic phase is within a range from 70° C. to 150° C. The anisotropy of refractive index of the liquid crystal composition is 0.10 to 0.22, and the anisotropy of dielectric constant is 5 to 30.
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5.发明授权公开(公告)号：US06565932B2
公开(公告)日：2003-05-20
申请号：US09738539
申请日：2000-12-15
IPC分类号： C09K1936
CPC分类号： G02F1/13718 , C09K19/16 , C09K19/3048 , C09K19/586 , C09K2019/0459 , Y10T428/10 , Y10T428/1036 , Y10T428/1059
摘要： A reflective type liquid crystal display which has, between a pair of transparent substrates with electrodes thereon, a nematic liquid crystal composition which exhibits a cholesteric phase at room temperature. The liquid crystal composition contains a nematic liquid crystal mixture containing a liquid crystalline difluorostilbene compound, and a chiral agent. The concentration of the liquid crystalline difluorostilbene compound in the liquid crystal composition is preferably in a range from 5 wt % to 60 wt %.
摘要翻译： 在具有电极的一对透明基板之间具有在室温下显示胆甾醇相的向列型液晶组合物的反射型液晶显示器。 液晶组合物含有含有液晶二氟芪化合物和手性试剂的向列型液晶混合物。 液晶组合物中液晶二氟芪化合物的浓度优选在5重量％至60重量％的范围内。
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6.发明授权公开(公告)号：US06461693B1
公开(公告)日：2002-10-08
申请号：US09670609
申请日：2000-09-26
IPC分类号： C09K1982
CPC分类号： C09K19/586 , C09K19/46 , G02F1/13718 , Y10T428/10
摘要： A chiral nematic liquid composition, which exhibits a cholesteric phase at a room temperature, comprising a nematic liquid crystal composition and at least one kind of chiral agent. The nematic liquid crystal composition includes at least one kind of liquid crystal ester compound, at least one kind of liquid crystal terphenyl compound, and at least one kind of liquid crystal tolane compound. This chiral nematic liquid crystal offers superior bidirectional stability, good color purity and reflectance, high contrast, a wide temperature compensation range, and a low voltage driving requirement.
摘要翻译： 在室温下呈胆甾醇相的手性向列型液体组合物包括向列型液晶组合物和至少一种手性试剂。 向列型液晶组合物包括至少一种液晶酯化合物，至少一种液晶三联苯化合物和至少一种液晶甲苯化合物。 该手性向列液晶具有优异的双向稳定性，良好的色纯度和反射率，高对比度，宽温度补偿范围和低电压驱动要求。
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7.发明授权公开(公告)号：US06416825B1
公开(公告)日：2002-07-09
申请号：US09312739
申请日：1999-05-14
IPC分类号： C09K1922
CPC分类号： C09K19/0225 , C09K19/3068 , C09K19/586 , C09K2019/0448 , Y10T428/10
摘要： A liquid crystal composition which contains nematic liquid crystal containing a liquid crystal ester compound and a chiral agent mainly containing an ester compound with no cholesterol rings. The liquid crystal composition exhibits a cholesteric phase in a room temperature. A liquid crystal display has substrates with ITO electrodes thereon and the liquid crystal composition between the substrates. The liquid crystal display further has a columnar structure formed in the liquid crystal composition.
摘要翻译： 一种液晶组合物，其含有含有液晶酯化合物的向列液晶和主要含有没有胆固醇环的酯化合物的手性剂。 液晶组合物在室温下显示出胆甾型相。 液晶显示器具有其上具有ITO电极的基板和基板之间的液晶组成。 液晶显示器还具有形成在液晶组合物中的柱状结构。
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公开(公告)号：US06781666B2
公开(公告)日：2004-08-24
申请号：US10452369
申请日：2003-06-02
IPC分类号： G02F11347
CPC分类号： G02F1/13473 , G02F1/13475
摘要： Disclosed is a liquid crystal display having stacked liquid crystal light modulation layers each containing a liquid crystal compound. At least one of the liquid crystal modulation layers is different from remaining ones in at least one of a dielectric anisotropy, a thickness, a liquid crystal compound contained therein, and a functional layer provided therein so that the drive voltage ranges for the layers are made equal.
摘要翻译： 公开了一种液晶显示器，其具有层叠液晶光调制层，各层含有液晶化合物。 液晶调制层中的至少一个与其中包含的介电各向异性，厚度，液晶化合物和其中设置的功能层中的至少一种中的至少一个不同，使得这些层的驱动电压范围 等于。
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公开(公告)号：US06338883B1
公开(公告)日：2002-01-15
申请号：US09458703
申请日：1999-12-13
IPC分类号： C09K1952
CPC分类号： G02F1/13718 , C09K19/0208 , C09K19/586 , Y10T428/10
摘要： A reflective liquid crystal light modulating device which has a pair of substrates with electrodes thereon, at least one of which is transparent, and a liquid crystal composition which contains nematic liquid crystal and a plurality of chiral agents and exhibits a cholesteric phase in a room temperature between the substrates. The chiral agents include two chiral agents which have mutually opposite helical senses (cause liquid crystal to twist in mutually opposite directions), and the total content of the chiral agents in the liquid crystal composition is 10 to 45 wt %.
摘要翻译： 一种反射型液晶光调制装置，其具有一对基板，其上至少一个是透明的电极，液晶组合物含有向列型液晶和多个手性试剂，并在室温下显示胆固醇相 在基板之间。 手性试剂包括具有相互相反的螺旋感（引起液晶在相互相反的方向上扭转）的两个手性试剂，并且液晶组合物中手性试剂的总含量为10〜45重量％。
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公开(公告)号：US06274208B1
公开(公告)日：2001-08-14
申请号：US09370709
申请日：1999-08-09
IPC分类号： C09K1952
CPC分类号： C09K19/586 , C09K19/42 , C09K19/46 , G02F1/13718 , Y10T428/10
摘要： A liquid crystal composition which contains a liquid crystal tolan compound, a liquid crystal ester compound, a liquid crystal phenylcyclohexane compound and at least one chiral agent. A reflective type liquid crystal display has the liquid crystal composition and a columnar structure between substrates with ITO electrodes thereon.
摘要翻译： 一种液晶组合物，液晶聚酰胺化合物，液晶酯化合物，液晶苯基环己烷化合物和至少一种手性试剂。 反射型液晶显示器具有在其上具有ITO电极的基板之间的液晶组成和柱状结构。
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