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1.发明授权Liquid crystal display element with thresholdless voltage transmittance characteristic 失效具有无阈值电压透射特性的液晶显示元件公开(公告)号：US06642990B2
公开(公告)日：2003-11-04
申请号：US09948641
申请日：2001-09-10
IPC分类号： C09K1902
CPC分类号： G02F1/141 , G02F1/1337 , G02F1/1416 , G02F2001/133749
摘要： A liquid crystal display element including a first electrode substrate having a first transparent substrate, a first electrode formed on the first substrate, and a first alignment layer formed on the first substrate. The liquid crystal display element further includes a second electrode substrate having a second transparent substrate, a second electrode formed on the second substrate, and a second alignment layer formed on the second substrate. The liquid crystal display element also has a light modulating layer of a smectic liquid crystal material which is sandwiched between the first and second electrode substrates and which has a thresholdless voltage-transmittance characteristic and a spontaneous polarization of 120 nC/cm2 or less. Further, the polarity force component of the surface free energy of each of the first and second alignment layers is 13 dyn/cm or less.
摘要翻译： 一种液晶显示元件，包括具有第一透明基板的第一电极基板，形成在第一基板上的第一电极和形成在第一基板上的第一取向层。 液晶显示元件还包括具有第二透明基板的第二电极基板，形成在第二基板上的第二电极和形成在第二基板上的第二取向层。 液晶显示元件还具有被夹在第一和第二电极基板之间的层间液晶材料的光调制层，并且具有无阈值电压透射特性和120nC / cm 2以下的自发极化 。 此外，第一和第二取向层中的每一个的表面自由能的极性分力为13dyn / cm以下。
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公开(公告)号：US20060012554A1
公开(公告)日：2006-01-19
申请号：US11232039
申请日：2005-09-22
申请人： Tatsuo Saishu , Haruhiko Okumura , Kohki Takatoh , Hajime Yamaguchi , Rei Hasegawa , Hitoshi Kobayashi , Rieko Fukushima
发明人： Tatsuo Saishu , Haruhiko Okumura , Kohki Takatoh , Hajime Yamaguchi , Rei Hasegawa , Hitoshi Kobayashi , Rieko Fukushima
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G3/3648 , G09G2300/0842 , G09G2310/06 , G09G2320/02 , G09G2320/0204 , G09G2320/0257 , G09G2320/0261
摘要： Disclosed is a method for driving an active matrix type liquid crystal display device including a first electrode, a second electrode, and a liquid crystal layer interposed between the first and the second electrodes, and the liquid crystal layer having a larger polarization when a voltage of a first polarity is applied to the first electrode against the second electrode than that when a voltage of a second polarity different from the first polarity is applied to the first electrode against the second electrode, the method comprising dividing a frame into a first field and a second field, applying a first voltage of the first polarity to the first electrode during the first field, generating a second voltage from the first voltage by changing its polarity, a magnitude of the second voltage being modified by an amount of ΔV (ΔV≠0) based on a magnitude of the first voltage in a direction of the first polarity when the first voltage is not zero, and applying the second voltage to the first electrode during the second field.
摘要翻译： 公开了一种用于驱动有源矩阵型液晶显示装置的方法，该有源矩阵型液晶显示装置包括插入在第一和第二电极之间的第一电极，第二电极和液晶层，并且当电压 与第一极性不同的第二极性的电压相对于第二电极施加到第一电极的第一极性相对于第二电极施加第一极性，该方法包括将框分成第一场和 第二场，在第一场期间将第一极性的第一电压施加到第一电极，通过改变其极性从第一电压产生第二电压，第二电压的幅度被修改ΔVa的量（ΔV< 0），当第一电压不为零时，基于第一极性的方向上的第一电压的大小，并且将第二电压施加到 在第二场中的第一个电极。
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公开(公告)号：US06961043B2
公开(公告)日：2005-11-01
申请号：US09942743
申请日：2001-08-31
CPC分类号： G09G3/3651 , G09G3/3614 , G09G2310/06 , G09G2320/0257 , G09G2320/0261
摘要： A display includes a ferroelectric liquid crystal material having an asymmetric polarity response property, a section which applies an image signal to a pixel of the material for every two fields forming one frame, and a controller which reverses the polarity of the signal in one frame period. Particularly, the controller is configured that the polarity of the signal is reversed in a selected one of first and second manners, the first manner initiating a signal amplitude change from a polarity in which a larger response of the material is obtainable, the second manner initiating a signal amplitude change from a polarity in which a smaller response of the material is obtainable, and the selected manner being smaller in the total of brightness deviation generated in a frame immediately after the change for each of predetermined brightness transitions.
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公开(公告)号：US07119780B2
公开(公告)日：2006-10-10
申请号：US10982889
申请日：2004-11-08
IPC分类号： G09G3/36
CPC分类号： G09G3/3651 , G09G3/3614 , G09G2310/06 , G09G2320/0257 , G09G2320/0261
摘要： A display includes a ferroelectric liquid crystal material having an asymmetric polarity response property, a section which applies an image signal to a pixel of the material for every two fields forming one frame, and a controller which reverses the polarity of the signal in one frame period. Particularly, the controller is configured that the polarity of the signal is reversed in a selected one of first and second manners, the first manner initiating a signal amplitude change from a polarity in which a larger response of the material is obtainable, the second manner initiating a signal amplitude change from a polarity in which a smaller response of the material is obtainable, and the selected manner being smaller in the total of brightness deviation generated in a frame immediately after the change for each of predetermined brightness transitions.
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5.发明授权公开(公告)号：US06975297B2
公开(公告)日：2005-12-13
申请号：US10175899
申请日：2002-06-21
申请人： Tatsuo Saishu , Haruhiko Okumura , Kohki Takatoh , Hajime Yamaguchi , Rei Hasegawa , Hitoshi Kobayahi , Rieko Fukushima
发明人： Tatsuo Saishu , Haruhiko Okumura , Kohki Takatoh , Hajime Yamaguchi , Rei Hasegawa , Hitoshi Kobayahi , Rieko Fukushima
CPC分类号： G09G3/3614 , G09G3/3648 , G09G2300/0842 , G09G2310/06 , G09G2320/02 , G09G2320/0204 , G09G2320/0257 , G09G2320/0261
摘要： Disclosed is a method for driving an active matrix type liquid crystal display device including a first electrode, a second electrode, and a liquid crystal layer interposed between the first and the second electrodes, and the liquid crystal layer having a larger polarization when a voltage of a first polarity is applied to the first electrode against the second electrode than that when a voltage of a second polarity different from the first polarity is applied to the first electrode against the second electrode, the method comprising dividing a frame into a first field and a second field, applying a first voltage of the first polarity to the first electrode during the first field, generating a second voltage from the first voltage by changing its polarity, a magnitude of the second voltage being modified by an amount of ΔV (ΔV≠0) based on a magnitude of the first voltage in a direction of the first polarity when the first voltage is not zero, and applying the second voltage to the first electrode during the second field.
摘要翻译： 公开了一种用于驱动有源矩阵型液晶显示装置的方法，该有源矩阵型液晶显示装置包括插入在第一和第二电极之间的第一电极，第二电极和液晶层，并且当电压 与第一极性不同的第二极性的电压相对于第二电极施加到第一电极的第一极性相对于第二电极施加第一极性，该方法包括将框分成第一场和 第二场，在第一场期间将第一极性的第一电压施加到第一电极，通过改变其极性从第一电压产生第二电压，第二电压的幅度被修改ΔVa的量（ΔV< 0），当第一电压不为零时，基于第一极性的方向上的第一电压的大小，并且将第二电压施加到 在第二场中的第一个电极。
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公开(公告)号：US20050083288A1
公开(公告)日：2005-04-21
申请号：US10982889
申请日：2004-11-08
CPC分类号： G09G3/3651 , G09G3/3614 , G09G2310/06 , G09G2320/0257 , G09G2320/0261
摘要： A display includes a ferroelectric liquid crystal material having an asymmetric polarity response property, a section which applies an image signal to a pixel of the material for every two fields forming one frame, and a controller which reverses the polarity of the signal in one frame period. Particularly, the controller is configured that the polarity of the signal is reversed in a selected one of first and second manners, the first manner initiating a signal amplitude change from a polarity in which a larger response of the material is obtainable, the second manner initiating a signal amplitude change from a polarity in which a smaller response of the material is obtainable, and the selected manner being smaller in the total of brightness deviation generated in a frame immediately after the change for each of predetermined brightness transitions.
摘要翻译： 显示器包括具有不对称极性响应特性的铁电液晶材料，将图像信号施加到形成一帧的每两场的材料的像素的部分，以及在一个帧周期内使信号的极性反转的控制器 。 特别地，控制器被配置为以第一和第二选择的方式使信号的极性反转，第一种方式是从可获得材料的较大响应的极性引发信号幅度变化，第二种方式发起 信号幅度从可获得较小响应的极性的极性变化，并且所选择的方式在每个预定亮度转换之后紧接在改变之后的帧中产生的亮度偏差的总和中较小。
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公开(公告)号：US06614491B2
公开(公告)日：2003-09-02
申请号：US09801812
申请日：2001-03-09
IPC分类号： G02F1141
CPC分类号： G02F1/141 , G02F1/133512
摘要： There is provided a liquid crystal display which is capable of preventing light from leaking out from the peripheral portion of pixels and which has a high display performance. The liquid crystal display comprises: an array substrate including a plurality of scanning lines and a plurality of signal lines, a plurality of switching elements, a plurality of pixel electrodes, and a first alignment layer which is formed on the first substrate so as to cover the pixel electrodes; a counter substrate including a counter electrode and a second alignment layer which is formed on the second substrate so as to cover the counter electrode; and a light control layer sandwiched between the array substrate and the counter substrate, and including a liquid crystal material having a spontaneous polarization and having a nematic phase or an isotropic phase on a high-temperature side of a chiral smectic C phase, an optical axis of liquid crystal molecules in the light control layer substantially staying when no electric field or a first electric field of a first polarity are applied to said liquid crystal material, and the optical axis of the liquid crystal molecules responding in accordance with a magnitude of a second electric field of a second polarity different from the first polarity when the second electric field is applied to said liquid crystal material, wherein an electric field between the scanning lines and the counter electrode has the first polarity when the switching elements turn on.
摘要翻译： 提供了一种液晶显示器，其能够防止光从像素的周边部分泄漏并具有高显示性能。 液晶显示器包括：阵列基板，包括多个扫描线和多个信号线，多个开关元件，多个像素电极和第一取向层，其形成在第一基板上以覆盖 像素电极; 对置基板，包括对电极和第二取向层，所述第二取向层形成在所述第二基板上以覆盖所述对电极; 以及夹在阵列基板和对置基板之间的光控层，并且在手性近晶C相的高温侧包括具有自发极化并具有向列相或各向同性相的液晶材料，光轴 当没有电场或第一极性的第一电场施加到所述液晶材料时，所述光控制层中的液晶分子基本上停留，并且所述液晶分子的光轴根据第二 当第二电场施加到所述液晶材料时，第二极性与第一极性不同的电场，其中当开关元件导通时，扫描线和对电极之间的电场具有第一极性。
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公开(公告)号：US06762812B2
公开(公告)日：2004-07-13
申请号：US10610535
申请日：2003-07-02
IPC分类号： G02F11337
CPC分类号： G02F1/141 , G02F1/133512
摘要： There is provided a liquid crystal display which is capable of preventing light from leaking out from the peripheral portion of pixels and which has a high display performance. The liquid crystal display comprises: an array substrate including a plurality of scanning lines and a plurality of signal lines, a plurality of switching elements, a plurality of pixel electrodes, and a first alignment layer which is formed on the first substrate so as to cover the pixel electrodes; a counter substrate including a counter electrode and a second alignment layer which is formed on the second substrate so as to cover the counter electrode; and a light control layer sandwiched between the array substrate and the counter substrate, and including a liquid crystal material having a spontaneous polarization and having a nematic phase or an isotropic phase on a high-temperature side of a chiral smectic C phase, an optical axis of liquid crystal molecules in the light control layer substantially staying when no electric field or a first electric field of a first polarity are applied to said liquid crystal material, and the optical axis of the liquid crystal molecules responding in accordance with a magnitude of a second electric field of a second polarity different from the first polarity when the second electric field is applied to said liquid crystal material, wherein an electric field between the scanning lines and the counter electrode has the first polarity when the switching elements turn on.
摘要翻译： 提供了一种液晶显示器，其能够防止光从像素的周边部分泄漏并具有高显示性能。 液晶显示器包括：阵列基板，包括多个扫描线和多个信号线，多个开关元件，多个像素电极和第一取向层，其形成在第一基板上以覆盖 像素电极; 对置基板，包括对电极和第二取向层，所述第二取向层形成在所述第二基板上以覆盖所述对电极; 以及夹在阵列基板和对置基板之间的光控层，并且在手性近晶C相的高温侧包括具有自发极化并具有向列相或各向同性相的液晶材料，光轴 当没有电场或第一极性的第一电场施加到所述液晶材料时，所述光控制层中的液晶分子基本上停留，并且所述液晶分子的光轴根据第二 当第二电场施加到所述液晶材料时，第二极性与第一极性不同的电场，其中当开关元件导通时，扫描线和对电极之间的电场具有第一极性。
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公开(公告)号：US07050031B2
公开(公告)日：2006-05-23
申请号：US10751505
申请日：2004-01-06
IPC分类号： G09G3/36
CPC分类号： G09G3/3651 , G09G3/3614 , G09G2310/06 , G09G2320/0257 , G09G2320/0261
摘要： A display includes a ferroelectric liquid crystal material having an asymmetric polarity response property, a section which applies an image signal to a pixel of the material for every two fields forming one frame, and a controller which reverses the polarity of the signal in one frame period. Particularly, the controller is configured that the polarity of the signal is reversed in a selected one of first and second manners, the first manner initiating a signal amplitude change from a polarity in which a larger response of the material is obtainable, the second manner initiating a signal amplitude change from a polarity in which a smaller response of the material is obtainable, and the selected manner being smaller in the total of brightness deviation generated in a frame immediately after the change for each of predetermined brightness transitions.
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公开(公告)号：US06344889B1
公开(公告)日：2002-02-05
申请号：US09527543
申请日：2000-03-16
IPC分类号： G02F11337
CPC分类号： G02F1/141 , G02F1/1416 , G02F2201/121 , G02F2201/124
摘要： In a liquid crystal display in which a liquid crystal having spontaneous polarization is sandwiched between substrates, liquid crystal alignment which achieves a wide viewing angle and hardly causes alignment destruction is readily formed. A common electrode is formed by a pair of meshed comb electrodes, and rubbing alignment is performed in the logitudinal direction of teeth of these comb electrodes. When the liquid crystal material transits from a nematic phase or an isotropic phase to a chiral smectic C phase, a positive DC voltage, for example, is applied between a pixel electrode and one of the comb common electrodes, and a negative voltage is applied between a pixel electrode and the other comb common electrode. This readily accomplishes liquid crystal alignment in which smectic layers bend horizontally with respect to the substrate surface in space portions between the interdigitated teeth of the comb electrodes.
摘要翻译： 在具有自发极化的液晶夹在基板之间的液晶显示器中，容易形成实现宽视角并且几乎不引起取向破坏的液晶取向。 公共电极由一对啮合的梳状电极形成，并且在这些梳状电极的齿的纵向上执行摩擦取向。 当液晶材料从向列相或各向同性相转移到手性近晶C相时，例如在像素电极和梳状公共电极之间施加正的直流电压，并且在两个梳状公共电极之间施加负电压 像素电极和另一个梳状共用电极。 这容易实现液晶对准，其中近晶层相对于梳电极的叉指齿之间的空间部分中的基板表面水平弯曲。
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