公开(公告)号：US5589966A

公开(公告)日：1996-12-31

申请号：US237120

申请日：1994-05-03

申请人： Hideo Hama ,  Yukari Sakai

发明人： Hideo Hama ,  Yukari Sakai

IPC分类号： G02F1/1347 ,  G02F1/141 ,  G02F1/31

CPC分类号： G02F1/141 ,  G02F1/13471 ,  G02F1/31 ,  G02F2001/1412 ,  G02F2203/07

摘要： The liquid crystal light modulation device of the present invention comprising a liquid crystal element consisting of one of plural liquid crystal cells and a voltage signal input means electrically connected with the liquid crystal element, wherein each liquid crystal cell contains a chiral smectic liquid crystal material layer and when a voltage signal is input to the liquid crystal element, the polarization direction of a light transmitted by the liquid crystal element is changed by approx. 90.degree. as compared with the state where the voltage signal is not input to the liquid crystal element enables a change of a light path and an open-close (on-off) operation of a light path at a high speed (optical switching time: not longer than 1 msec).

摘要翻译： 本发明的液晶光调制装置包括由多个液晶单元中的一个组成的液晶元件和与液晶元件电连接的电压信号输入装置，其中每个液晶单元包含手性近晶液晶材料层 并且当向液晶元件输入电压信号时，由液晶元件透射的光的偏振方向改变大约。 90°与电压信号未输入到液晶元件的状态相比，可以高速地改变光路的光路和开 - 关（开 - 关）操作（光切换时间： 不超过1毫秒）。

公开(公告)号：US5389287A

公开(公告)日：1995-02-14

申请号：US90820

申请日：1993-07-13

申请人： Shinichi Nishiyama ,  Mitsuko Nagai ,  Hideo Hama ,  Tooru Yamanaka

发明人： Shinichi Nishiyama ,  Mitsuko Nagai ,  Hideo Hama ,  Tooru Yamanaka

IPC分类号： C09K19/02 ,  C09K19/32 ,  C09K19/42 ,  C09K19/54 ,  C09K19/52 ,  G02F1/13

CPC分类号： C09K19/0266 ,  C09K19/322 ,  C09K19/42 ,  C09K19/544 ,  C09K2019/325 ,  C09K2019/326

摘要： An antiferroelectric liquid crystal composite material comprising an organic polymer and an antiferroelectric liquid crystal material, both being in the dispersed state; a process for preparing a liquid crystal element including a step of mixing an organic polymer and an antiferroelectric liquid crystal material; and a liquid crystal element having such a structure that the above-mentioned antiferroelectric liquid crystal composite material is sandwiched between a pair of electrodes are provided. According to the present invention, there can be obtained a liquid crystal element which is available at a low price, quick in the electrooptical response, free from occurrence of switching failure and is able to make a large display screen.

摘要翻译： 包含分散状态的有机聚合物和反铁电液晶材料的反铁电液晶复合材料; 一种制备液晶元件的方法，包括混合有机聚合物和反铁电液晶材料的步骤; 以及具有上述反铁电液晶复合材料夹在一对电极之间的结构的液晶元件。 根据本发明，可以获得一种液晶元件，其以低价格可用，电光响应快，不发生开关故障，并且能够制作大的显示屏。

公开(公告)号：US07553524B2

公开(公告)日：2009-06-30

申请号：US10587069

申请日：2005-01-19

申请人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

发明人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

IPC分类号： C09K19/02 ,  G02F1/141

CPC分类号： G02F1/141 ,  G02F1/133788 ,  G02F2001/133773 ,  Y10T428/10 ,  Y10T428/1005

摘要： The invention provides a liquid crystal display using a ferroelectric liquid crystal, which can give mono-domain alignment of the ferroelectric liquid crystal without forming alignment defects which is so remarkably good in alignment stability that the alignment thereof can be maintained even if the temperature of the liquid crystal is raised to the phase transition point or higher. The present invention provides a liquid crystal display comprising a ferroelectric liquid crystal sandwiched between two substrates, wherein an electrode and a photo alignment layer are each successively formed a constituent material of the respective photo alignment layer is a photoreactive material which generates a photoreaction to give anisotropy to the photo alignment layer; and the constituent material of the respective photo alignment layer has different composition from each other with the ferroelectric liquid crystal sandwiched therebetween.

摘要翻译： 本发明提供了一种使用铁电液晶的液晶显示器，其可以赋予铁电液晶的单畴取向，而不会形成取向稳定性非常好的取向缺陷，即使其中的 液晶升高至相变点以上。 本发明提供一种液晶显示装置，其特征在于，具备夹在两个基板之间的铁电液晶，其中依次形成电极和光取向层，各自的光取向层的构成材料是产生光反应以产生各向异性的光反应性材料 到光取向层; 并且各个光取向层的构成材料在其间夹有铁电液晶的方式彼此不同。

公开(公告)号：US6007737A

公开(公告)日：1999-12-28

申请号：US952732

申请日：1997-11-25

申请人： Shinichi Nishiyama ,  Yuichirou Tatsuki ,  Takahiro Fujiyama ,  Chiho Hirano ,  Hideo Hama ,  Tohru Yamanaka

发明人： Shinichi Nishiyama ,  Yuichirou Tatsuki ,  Takahiro Fujiyama ,  Chiho Hirano ,  Hideo Hama ,  Tohru Yamanaka

IPC分类号： C09K19/02 ,  C09K19/52 ,  C09K19/20 ,  C09K19/32

CPC分类号： C09K19/0266 ,  C09K19/0225

摘要： The first smectic liquid crystal composition of the invention has a voltage gradation parameter L of less than 0.6, said parameter being defined by the equation L=S.sub.H /S.sub.O with the proviso that: a liquid crystal cell filled with a liquid crystal composition is placed between a pair of polarizing plates arranged in the crossed Nicols state; a voltage is applied to the liquid crystal cell to form a hysteresis curve showing a correlation between the voltage and a transmittance; and a tangent line I.sub.R of the hysteresis curve within a region wherein the transmittance steeply increases intersects a tangent line I.sub.F of the hysteresis curve within a region which is adjacent to the voltage-steep increase region and which is on the higher-voltage side at an intersection point P. In the above equation, S.sub.O is an area of a rectangular triangle having as an oblique side a straight line PQ which has, as both ends, the intersection point P and an intersection point Q of an axis of ordinate (V=0) and the hysteresis curve; and S.sub.H is an area of a region enclosed with the straight line PQ, the hysteresis curve and a constant-voltage straight line which passes the intersection point P. The second liquid crystal composition of the invention has a parameter G of 0 to 0.3, said parameter G being defined by the following equation with the proviso that when an absolute value .vertline.V.vertline. of a voltage V applied in the same manner as described above is increased to the predetermined value .vertline.V.vertline..sub.min, the light quantity T becomes a maximum value T.sub.max ; ##EQU1## In the above equation, S is an area of a region enclosed with the hysteresis curve, T.sub.min is a minimum value of the transmittance; and T.sub.0 is a transmittance given when no voltage is applied.

摘要翻译： PCT No.PCT / JP96 / 01478。 371日期：1997年11月25日 102（e）1997年11月25日日期PCT提交1996年5月31日PCT公布。 公开号WO96 / 38513 日本1996年12月5日本发明的第一层间液晶组合物具有小于0.6的电压等级参数L，所述参数由式L = SH / SO定义，条件是：填充有液体的液晶单元 将晶体组成放置在以正交尼科尔斯状态布置的一对偏振板之间; 向液晶单元施加电压，形成表示电压与透射率的相关性的滞后曲线。 并且在透射率急剧增加的区域内的滞后曲线的切线IR与滞后曲线的切线IF在与电压陡峭增加区域相邻的区域内相交，并且位于高电压侧的区域 在上述等式中，SO是具有倾斜侧的直线PQ的矩形三角形的区域，该直线PQ的两端具有交点P和纵轴的交点Q（V = 0）和滞后曲线; SH是通过交点P的直线PQ，滞后曲线和恒定电压直线所包围的区域的区域。本发明的第二液晶组合物的参数G为0〜0.3，所述 参数G由以下等式定义，条件是当绝对值| V |时 以与上述相同的方式施加的电压V增加到预定值| V | min，光量T变为最大值Tmax; 在上述等式中，S是用滞后曲线包围的区域的面积，Tmin是透射率的最小值; 而T0是当没有施加电压时给出的透射率。

公开(公告)号：US5922242A

公开(公告)日：1999-07-13

申请号：US858811

申请日：1997-05-19

申请人： Tatsuo Saishu ,  Kohki Takatoh ,  Hideo Hama ,  Yukari Sakai

发明人： Tatsuo Saishu ,  Kohki Takatoh ,  Hideo Hama ,  Yukari Sakai

IPC分类号： G02F1/137 ,  C09K19/02 ,  G02F1/133 ,  G02F1/1337 ,  G02F1/141 ,  G09F9/35 ,  C09K19/52 ,  C09K19/32

CPC分类号： C09K19/0266 ,  G02F1/141 ,  G02F2001/133773 ,  G02F2001/1412 ,  G02F2203/30

摘要： An LCD which having a high response speed, a wide viewing angle and a high contrast and capable of displaying high-quality gray-scale images at normal temperature. The LCD comprises an array substrate, a counter substrate opposing the array substrate, pixel electrodes arranged on the the array substrate in rows and columns, each connected to an active element, a first orientation film provided on the pixel electrodes, a counter electrode opposing the pixel electrodes, arranged on the counter substrate, a second orientation film provided on the counter electrode, rubbed in a direction slightly inclined to a direction in which the first orientation has been rubbed, and a layer of antiferroelectric liquid crystal sealed in a gap between the first and second orientation films, the antiferroelectric liquid crystal being a smectic liquid crystal which contains an antiferroelectric liquid crystal compound represented by R.sup.1 (O)--Zm--Y--E--COO--C*HX--R.sup.4. The liquid crystal exhibits transmittance which increases monotonically with applied voltage and exhibits a memory margin M ranging from -1 to 0 at normal temperature. The memory margin M is given as M=(V.sub.10 -V'.sub.90)/(V.sub.90 -V.sub.10).

摘要翻译： 具有高响应速度，宽视角和高对比度并能够在常温下显示高质量灰度图像的LCD。 LCD包括阵列基板，与阵列基板相对的对置基板，排列在阵列基板上的行和列各自连接到有源元件的像素电极，设置在像素电极上的第一取向膜，与 配置在对置基板上的像素电极，设置在对电极上的第二取向膜，沿着与第一取向被摩擦的方向稍微倾斜的方向摩擦，以及密封在第一取向之间的间隙中的反铁电液晶层 第一和第二取向膜，反铁电液晶是含有由R1（O）-Zm-YE-COO-C * HX-R4表示的反铁电液晶化合物的近晶液晶。 液晶显示透射率随施加电压单调增加，并且在正常温度下表现出从-1到0的记忆容限M. 存储器裕度M被给出为M =（V10-V'90）/（V90-V10）。

公开(公告)号：US5719653A

公开(公告)日：1998-02-17

申请号：US590579

申请日：1996-01-24

申请人： Takao Minato ,  Katsuhiro Suzuki ,  Hideo Hama ,  Yukari Sakai

发明人： Takao Minato ,  Katsuhiro Suzuki ,  Hideo Hama ,  Yukari Sakai

IPC分类号： G02F1/137 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/141 ,  G02F1/13

CPC分类号： G02F1/1416 ,  G02F1/13394

摘要： Striped electrodes are formed on upper and lower substrates respectively, and a plurality of partition members are formed in a striped fashion so that a plurality of parallel sealed linear interstices R, each having a rectangular section, are formed between the substrates. A upper-side rubbing direction crosses a lower-side rubbing direction at a predetermined angle, and the direction of extension of each of the partition members is caused to fall within the above cross angle. An antiferroelectric liquid crystal is sealed in the linear interstices, and the liquid crystal panel is cooled while proceeding from one end of the linear interstices to the other end thereof. The layer normal direction of liquid crystal molecular layer becoming irregular between the upper and lower substrates is prevented by the employment of the cross rubbing method to thereby avoid the occurrence of defects in the liquid crystal. Further, the occurrence of zigzag defects is prevented by controlling the infiltration of the antiferroelectric liquid crystal and also controlling the cooling.

摘要翻译： 带状电极分别形成在上基板和下基板上，并且以条纹的方式形成多个分隔部件，使得在基板之间形成有多个平行的密封的线状间隙R（各自具有矩形截面）。 上侧摩擦方向以预定角度穿过下侧摩擦方向，并且使每个分隔构件的延伸方向落在上述交叉角内。 将反铁电液晶密封在线性空隙中，并且在从线性间隙的一端进入其另一端的同时冷却液晶面板。 通过采用交叉摩擦法来防止液晶分子层在上下基板之间变得不规则的层法线方向，从而避免了液晶中的缺陷的发生。 此外，通过控制反铁电液晶的渗透并且还控制冷却来防止锯齿形缺陷的发生。

公开(公告)号：US07599041B2

公开(公告)日：2009-10-06

申请号：US12274525

申请日：2008-11-20

申请人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

发明人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

IPC分类号： C09K19/02 ,  G02F1/141

CPC分类号： G02F1/133788 ,  G02F1/1337 ,  G02F1/141 ,  G02F2001/133773 ,  Y10T428/10 ,  Y10T428/1005

摘要： A liquid crystal display using a ferroelectric liquid crystal, which can give mono-domain alignment of the ferroelectric liquid crystal without forming alignment defects such as zigzag defects, hairpin defects and double domains and which is so remarkably good in alignment stability that the alignment thereof can be maintained even if the temperature of the liquid crystal is raised to the phase transition point or higher. The liquid crystal display has a ferroelectric liquid crystal sandwiched between two substrates, wherein an electrode and a photo alignment layer are each successively formed on opposite faces of the two substrates facing each other, and a constituent material of the respective photo alignment layer has a different composition with the ferroelectric liquid crystal sandwiched there between.

摘要翻译： 一种使用铁电液晶的液晶显示器，其能够形成铁电液晶的单畴取向，而不会形成诸如锯齿形缺陷，发夹缺陷和双畴的取向缺陷，并且其取向稳定性非常好，其取向可以 即使液晶的温度上升到相变点以上，也能够维持。 液晶显示器具有夹在两个基板之间的铁电液晶，其中电极和光取向层分别依次形成在彼此面对的两个基板的相对面上，并且各个光取向层的构成材料具有不同的 组成与铁电液晶夹在其间。

公开(公告)号：US07553525B2

公开(公告)日：2009-06-30

申请号：US10587140

申请日：2005-01-19

申请人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

发明人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

IPC分类号： C09K19/02 ,  G02F1/141

CPC分类号： G02F1/133788 ,  G02F1/1337 ,  G02F1/141 ,  G02F2001/133773 ,  Y10T428/10 ,  Y10T428/1005

摘要： A liquid crystal display using a ferroelectric liquid crystal, which can give mono-domain alignment of the ferroelectric liquid crystal without forming alignment defects such as zigzag defects, hairpin defects and double domains and which is so remarkably good in alignment stability that the alignment thereof can be maintained even if the temperature of the liquid crystal is raised to the phase transition point or higher. The liquid crystal display has a ferroelectric liquid crystal sandwiched between two substrates, wherein an electrode and a photo alignment layer are each successively formed on opposite faces of the two substrates facing each other, and a constituent material of the respective photo alignment layer has a different composition with the ferroelectric liquid crystal sandwiched therebetween.

摘要翻译： 一种使用铁电液晶的液晶显示器，其能够形成铁电液晶的单畴取向，而不会形成诸如锯齿形缺陷，发夹缺陷和双畴的取向缺陷，并且其取向稳定性非常好，其取向可以 即使液晶的温度上升到相变点以上，也能够维持。 液晶显示器具有夹在两个基板之间的铁电液晶，其中电极和光取向层分别依次形成在彼此面对的两个基板的相对面上，并且各个光取向层的构成材料具有不同的 夹在其间的铁电液晶的组成。

公开(公告)号：US07553521B2

公开(公告)日：2009-06-30

申请号：US11039278

申请日：2005-01-19

申请人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

发明人： Naoko Sawatari ,  Masato Okabe ,  Hideo Hama

IPC分类号： C09K19/02 ,  G02F1/141

CPC分类号： G02F1/141 ,  C09K19/0225 ,  C09K19/3402 ,  C09K19/3444 ,  C09K19/3861 ,  C09K2019/3425 ,  G02F1/133711 ,  G02F1/133788 ,  Y10T428/10 ,  Y10T428/1005

摘要： The invention provides a liquid crystal displays using a ferroelectric liquid crystal, which can give mono-domain alignment of ferroelectrical liquid crystal without forming orientation defects and which is so remarkably good in orientation stability that the orientation thereof can be maintained even if the temperature of the liquid crystal is raised to the phase transition point or higher.The invention provides liquid crystal displays comprising a ferroelectric liquid crystal sandwiched between two substrates, wherein an electrode and a photo alignment film are each successively formed, the first of which is a photoreactive material which generates photoreaction to give anisotropy to the photo alignment film, and the constituent material of the second film is an optically isomerizable material comprising an optically isomerization-reactive compound.

摘要翻译： 本发明提供一种使用铁电液晶的液晶显示器，其能够形成铁电液晶的单畴取向而不形成取向缺陷，并且其取向稳定性非常好，其取向可以保持，即使其温度 液晶升高至相变点以上。 本发明提供的液晶显示器包括夹在两个基板之间的铁电液晶，其中依次形成电极和光取向膜，第一个是产生光反应以给予光取向膜各向异性的光反应性材料，以及 第二膜的构成材料是包含光学异构化反应性化合物的光学异构化材料。

公开(公告)号：US5888420A

公开(公告)日：1999-03-30

申请号：US771060

申请日：1996-12-20

申请人： Yukari Sakai ,  Mitsuko Nagai ,  Hideo Hama

发明人： Yukari Sakai ,  Mitsuko Nagai ,  Hideo Hama

IPC分类号： G02F1/1337 ,  G02F1/141 ,  C09K19/52 ,  G02F1/133

CPC分类号： G02F1/141 ,  G02F1/1337

摘要： Disclosed is a liquid crystal device comprising a liquid crystal cell filled with a liquid crystal material capable of exhibiting a smectic phase, said cell including upper and lower substrates each having in order an electrode and an orientation film in contact with the liquid crystal material, a cross angle e formed by the orientation treatment directions of the orientation films is 180.degree.-.delta. or 360.degree.-.delta. (0.degree.

摘要翻译： 公开了一种液晶装置，其包括填充有能够显现近晶相的液晶材料的液晶单元，所述单元包括按照与液晶材料接触的电极和取向膜顺序的上基板和下基板， 由取向膜的取向处理方向形成的交叉角e为180°-δ或360°-δ（0°<δ= 90°）。 还公开了一种制备上述液晶装置的方法，包括处理取向膜并制备液晶盒以使取向膜的取向处理方向形成在单元内的上述范围内的交叉角度THETA。 根据本发明，可以获得在光通信，立体图像显示，图像处理和光学操作等各种技术领域中具有高电光响应速度并且还具有高光学对比度的液晶装置。