公开(公告)号：US5936690A

公开(公告)日：1999-08-10

申请号：US52244

申请日：1998-03-31

申请人： Mitsuhiro Koden ,  Aya Miyazaki ,  Kazuyuki Kishimoto

发明人： Mitsuhiro Koden ,  Aya Miyazaki ,  Kazuyuki Kishimoto

IPC分类号： G02F1/137 ,  G02F1/133 ,  G02F1/1337 ,  G02F1/141

CPC分类号： G02F1/141 ,  G02F2001/13775 ,  G02F2203/30

摘要： A liquid crystal display device comprising a pair of electrodes formed on a pair of substrates, a pair of orientation films formed on the substrates to cover said electrodes, and a liquid crystal layer interposed between the substrates, wherein a plurality of pixels are provided between the facing sides of the pair of electrodes, and the liquid crystal layer comprises, in each pixel, regions with continuously or stepwise varying threshold values.

摘要翻译： 一种液晶显示装置，包括形成在一对基板上的一对电极，形成在基板上的一对取向膜以覆盖所述电极，以及夹在基板之间的液晶层，其中多个像素设置在 在一对电极的面对侧，液晶层在每个像素中包括具有连续或逐步变化的阈值的区域。

公开(公告)号：US5790218A

公开(公告)日：1998-08-04

申请号：US756186

申请日：1996-11-25

申请人： Mitsuhiro Koden ,  Aya Miyazaki ,  Kazuyuki Kishimoto

发明人： Mitsuhiro Koden ,  Aya Miyazaki ,  Kazuyuki Kishimoto

IPC分类号： G02F1/137 ,  G02F1/133 ,  G02F1/1337 ,  G02F1/141 ,  G02F1/1333

CPC分类号： G02F1/141 ,  G02F2001/13775 ,  G02F2203/30

摘要： A liquid crystal display device comprising a pair of electrodes formed on a pair of substrates, a pair of orientation films formed on the substrates to cover said electrodes, and a liquid crystal layer interposed between the substrates, wherein a plurality of pixels are provided between the facing sides of the pair of electrodes, and the liquid crystal layer comprises, in each pixel, regions with continuously or stepwise varying threshold values.

摘要翻译： 一种液晶显示装置，包括形成在一对基板上的一对电极，形成在基板上的一对取向膜以覆盖所述电极，以及夹在基板之间的液晶层，其中多个像素设置在 在一对电极的面对侧，液晶层在每个像素中包括具有连续或逐步变化的阈值的区域。

公开(公告)号：US6151096A

公开(公告)日：2000-11-21

申请号：US982555

申请日：1997-12-02

申请人： Damien Gerard McDonnell ,  John Clifford Jones ,  Teiyu Sako ,  Aya Miyazaki ,  Akira Sakaigawa ,  Mitsuhiro Koden ,  Paul Antony Gass ,  Michael John Towler

发明人： Damien Gerard McDonnell ,  John Clifford Jones ,  Teiyu Sako ,  Aya Miyazaki ,  Akira Sakaigawa ,  Mitsuhiro Koden ,  Paul Antony Gass ,  Michael John Towler

IPC分类号： G02F1/137 ,  G02F1/139 ,  G02F1/141 ,  G02F1/13 ,  C09K19/02 ,  G02F1/1333

CPC分类号： G02F1/141 ,  G02F1/1393 ,  G02F2001/13775 ,  G02F2203/30

摘要： A mixture of a ferroelectric or anti-ferroelectric liquid crystal material and a monomer having a single photopolymeric functional group is injected in the space between two electrode substrates while heat is applied. After cooling of the mixture it is irradiated with ultraviolet light at a temperature at which the liquid crystal material remains in the smectic phase so as to polymerise the monomer. Areas of liquid crystal material requiring different threshold voltages for switching are thereby produced. Alternatively such areas can be produced by changing the conditions applied to a mixture of liquid crystal material with a suitable dopant so as to cause separation of the dopant out of the liquid crystal material in order to provide a polarity of nucleation points for controlling domain formation within the liquid crystal material. Such control of domain formation can be used to provide greyscale in a liquid crystal device.

摘要翻译： 将铁电或反铁电液晶材料与具有单一光聚合官能团的单体的混合物注入到两个电极基板之间的空间中，同时施加热量。 在冷却混合物之后，在液晶材料保留在近晶相中的温度下用紫外线照射以使单体聚合。 由此产生需要用于切换的不同阈值电压的液晶材料区域。 或者，可以通过改变施加到液晶材料与合适掺杂剂的混合物的条件来产生这样的区域，以便使掺杂剂从液晶材料中分离出来，以便提供用于控制晶界形成的成核点的极性 液晶材料。 这种域形成的控制可用于在液晶装置中提供灰度级。

公开(公告)号：US6038009A

公开(公告)日：2000-03-14

申请号：US292233

申请日：1999-04-15

申请人： Aya Miyazaki ,  Mitsuhiro Koden ,  Paul Antony Gass

发明人： Aya Miyazaki ,  Mitsuhiro Koden ,  Paul Antony Gass

IPC分类号： G02F1/137 ,  G02F1/141 ,  G02F1/1333 ,  G02F1/13

CPC分类号： G02F1/1416 ,  G02F1/141 ,  G02F2001/13775

摘要： A ferroelectric liquid crystal display device is described. The device has a pair of substrates having at least an electrode film and an alignment film, and a complex made of a ferroelectric liquid crystal material and a polymer material disposed between the substrates. The complex has a network structure such that the network structure stabilizes the orientation of molecules of the ferroelectric liquid crystal material. Directions of pretilt angles of the molecules of the ferroelectric liquid crystal material located at interfaces between the substrates and the ferroelectric liquid crystal material are substantially identical. The ferroelectric liquid crystal material has a chevron layer structure, and a bending direction of the chevron layer structure is substantially identical to the directions of the pretilt angles of the molecules at the interfaces.

摘要翻译： 描述铁电液晶显示装置。 该器件具有至少具有电极膜和取向膜的一对基板，以及由铁电液晶材料和设置在基板之间的聚合物材料构成的复合体。 络合物具有使网络结构稳定铁电液晶材料的分子的取向的网络结构。 位于基板和铁电液晶材料之间的界面处的铁电液晶材料的分子的预倾角方向基本相同。 铁电液晶材料具有人字形层结构，并且人字纹层结构的弯曲方向与界面处的分子的预倾角的方向基本相同。

公开(公告)号：US5923394A

公开(公告)日：1999-07-13

申请号：US670267

申请日：1996-06-21

申请人： Aya Miyazaki ,  Mitsuhiro Koden ,  Paul Antony Gass

发明人： Aya Miyazaki ,  Mitsuhiro Koden ,  Paul Antony Gass

IPC分类号： G02F1/137 ,  G02F1/141 ,  G02F1/133 ,  G02F1/13 ,  G02F1/1333

CPC分类号： G02F1/1416 ,  G02F1/141 ,  G02F2001/13775

摘要： A ferroelectric liquid crystal display device is described. The device has a pair of substrates having at least an electrode film and an alignment film, and a complex made of a ferroelectric liquid crystal material and a polymer material disposed between the substrates. The complex has a network structure such that the network structure stabilizes the orientation of molecules of the ferroelectric liquid crystal material. Directions of pretilt angles of the molecules of the ferroelectric liquid crystal material located at interfaces between the substrates and the ferroelectric liquid crystal material are substantially identical. The ferroelectric liquid crystal material has a chevron layer structure, and a bending direction of the chevron layer structure is substantially identical to the directions of the pretilt angles of the molecules at the interfaces.

摘要翻译： 描述铁电液晶显示装置。 该器件具有至少具有电极膜和取向膜的一对基板，以及由铁电液晶材料和设置在基板之间的聚合物材料构成的复合体。 络合物具有使网络结构稳定铁电液晶材料的分子的取向的网络结构。 位于基板和铁电液晶材料之间的界面处的铁电液晶材料的分子的预倾角方向基本相同。 铁电液晶材料具有人字形层结构，并且人字纹层结构的弯曲方向与界面处的分子的预倾角的方向基本相同。

公开(公告)号：US5812230A

公开(公告)日：1998-09-22

申请号：US728200

申请日：1996-10-10

申请人： Akira Sakaigawa ,  Kazuyuki Kishimoto ,  Mitsuhiro Koden

发明人： Akira Sakaigawa ,  Kazuyuki Kishimoto ,  Mitsuhiro Koden

IPC分类号： G02F1/137 ,  G02F1/141 ,  G02F1/13 ,  G02F1/1333

CPC分类号： G02F1/141 ,  G02F2001/13775 ,  G02F2203/30

摘要： A liquid crystal display element is manufactured as follows: First, a mixture containing a ferroelectric liquid crystal (FLC) composition and a monofunctional monomer is injected into the space between opposing two electrode substrates, each of which is constituted by a substrate, an electrode, an alignment film and a polarization plate; next, the mixture is heated by irradiating it with ultraviolet light to a temperature at which the FLC composition exhibits a nematic phase or an isotropic phase so that the monomer is polymerized, and then it is cooled off. With this arrangement, isotropic micro structural elements, which locally give different threshold-value characteristics in the above-mentioned mixture, are formed into a striped structure so that a liquid crystal layer is formed. This striped structure is formed when the polymer that has been formed as a result of the polymerization is allowed to be sandwiched between smectic layers in the FLC composition during the cooling process. Consequently, it becomes possible to make the size of domains smaller as compared with the size of a pixel, and to uniformly distribute the domains over a wide range; thus, gray scale display of a liquid crystal display element is achieved.

摘要翻译： 液晶显示元件如下制造：首先，将含有铁电液晶（FLC）组合物和单官能单体的混合物注入相对的两个电极基板之间的空间中，每个电极基板由基板，电极， 取向膜和偏光板; 接着，用紫外线照射混合物至FLC组合物显示向列相或各向同性相的温度，使单体聚合，然后冷却。 通过这种布置，在上述混合物中局部给出不同阈值特性的各向同性微结构元件形成为条状结构，从而形成液晶层。 当在冷却过程中使得在聚合中形成的聚合物被夹在FLC组合物中的近晶层之间时，形成这种条纹结构。 因此，与像素的尺寸相比，可以使畴的尺寸变小，并且在宽范围内均匀分布畴; 因此，实现了液晶显示元件的灰度显示。

公开(公告)号：US6007739A

公开(公告)日：1999-12-28

申请号：US89942

申请日：1998-06-03

申请人： Akira Sakaigawa ,  Aya Miyazaki ,  Mitsuhiro Koden ,  Kazuhiko Tsuchiya ,  Kenji Suzuki

发明人： Akira Sakaigawa ,  Aya Miyazaki ,  Mitsuhiro Koden ,  Kazuhiko Tsuchiya ,  Kenji Suzuki

IPC分类号： G02F1/13 ,  C07D261/08 ,  C07D275/02 ,  C09K19/02 ,  C09K19/34 ,  C09K19/42 ,  G02F1/137 ,  G02F1/141 ,  C07D261/02 ,  C07D261/04

CPC分类号： C07D275/02 ,  C07D261/08 ,  C09K19/0225 ,  C09K19/3477 ,  C09K19/42 ,  G02F1/133555 ,  G02F1/141 ,  G02F2001/13712

摘要： A liquid crystal compound of the present invention is represented by the following general Formula I: ##STR1## wherein R.sub.1 and R.sub.2 are independently a linear or branched alkyl group or alkoxy group having 1 to 14 carbon atoms, provided that at least one of R.sub.1 and R.sub.2 is an alkyl group; --Y-- is a group represented by the following Formula (II) or (III); and X.sub.1, X.sub.2, X.sub.3, and X.sub.4 are independently a hydrogen atom or a fluorine atom: ##STR2##

摘要翻译： 本发明的液晶化合物由以下通式I表示：其中，R 1和R 2独立地为具有1至14个碳原子的直链或支链烷基或烷氧基，条件是R 1和R 2中的至少一个为 烷基; -Y-是由下式（II）或（III）表示的基团。 X 1，X 2，X 3和X 4独立地为氢原子或氟原子：

公开(公告)号：US5644371A

公开(公告)日：1997-07-01

申请号：US434487

申请日：1995-05-04

申请人： Mitsuhiro Koden ,  Aya Miyazaki ,  Tokihiko Shinomiya

发明人： Mitsuhiro Koden ,  Aya Miyazaki ,  Tokihiko Shinomiya

IPC分类号： G02F1/1335 ,  G02F1/1339 ,  G02F1/141

CPC分类号： G02F1/141 ,  G02F1/13394

摘要： A liquid crystal display device includes a ferroelectric liquid crystal layer. The ferroelectric liquid crystal molecules have pretilt directions defined by first direction vectors obtained by orthogonally projecting first imaginary vectors to each surface of a pair of substrates. The first imaginary vectors are parallel to the liquid crystal molecules in the ferroelectric liquid crystal layer in the vicinity of the substrates and directed away from each surface of the pair of substrates toward a center portion of the ferroelectric liquid crystal layer in its thickness direction. The ferroelectric liquid crystal layer has a chevron layered structure. A bending direction of the smectic layers is the same direction as the first direction vector obtained by orthogonally projecting a second imaginary vector to the substrates. The second imaginary vector is parallel to the smectic layers and is included in the same plane with the first imaginary vector and is directed away from the substrates toward the center of the ferroelectric liquid crystal layer. Walls made of insulating non-liquid crystal material are formed between the pair of substrates in a direction perpendicular to the surfaces of the pair of substrates and a light-shielding film is formed on either one of the substrates so that light does not pass through portions of the ferroelectric liquid crystal in a vicinity of a downstream side of the walls along the pretilt direction.

摘要翻译： 液晶显示装置包括铁电液晶层。 铁电液晶分子具有通过将第一虚数向量正交地投影到一对基板的每个表面而获得的第一方向向量限定的预倾斜方向。 第一虚数矢量与基板附近的铁电液晶层中的液晶分子平行，并且在一对基板的各表面朝着铁电液晶层的厚度方向的中心部分。 铁电液晶层具有V形层状结构。 近晶层的弯曲方向与通过将第二假想矢量正交地投影到基板而获得的第一方向矢量相同。 第二假想矢量与近晶层平行，并且与第一假想矢量包含在同一平面中，并且朝向铁电液晶层的中心远离衬底。 由绝缘非液晶材料构成的壁在垂直于一对基板的表面的方向上形成在一对基板之间，并且在任一个基板上形成遮光膜，使得光不通过部分 的铁电液晶沿着预倾斜方向在壁的下游侧附近。

公开(公告)号：US6108061A

公开(公告)日：2000-08-22

申请号：US818176

申请日：1997-03-14

申请人： Teiyu Sako ,  Aya Miyazaki ,  Akira Sakaigawa ,  Mitsuhiro Koden

发明人： Teiyu Sako ,  Aya Miyazaki ,  Akira Sakaigawa ,  Mitsuhiro Koden

IPC分类号： G02F1/13 ,  C09K19/54 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/137 ,  G02F1/141

CPC分类号： G02F1/141 ,  G02F2001/13775 ,  G02F2203/30

摘要： Monomers with photopolymerization characteristics and an initiator for polymerization are added to a liquid crystal composition having a ferroelectric liquid crystal phase (S5). In a state (S6) where coexist two domains which differ from each other in directions of molecular major axes in the ferroelectric liquid crystal phase, light is projected to the liquid crystal layer to form a polymer reticulate structure therein (S7). As a result, this state is made a stable one and the liquid crystal shows macroscopic switching behaviors among two states causing dark and bright displays respectively, and the above-described state causing halftone display.

摘要翻译： 具有光聚合特性的单体和聚合引发剂加入到具有铁电液晶相的液晶组合物中（S5）。 在铁电液晶相中分子长轴方向上共存两个畴的状态（S6）中，向液晶层投射光，形成聚合物网状结构（S7）。 结果，这种状态是稳定的，并且液晶在分别引起暗和亮显示的两种状态中显示出宏观的切换行为，并且上述状态引起半色调显示。

公开(公告)号：US5877834A

公开(公告)日：1999-03-02

申请号：US821463

申请日：1997-03-21

申请人： Teiyu Sako ,  Aya Miyazaki ,  Akira Sakaigawa ,  Mitsuhiro Koden

发明人： Teiyu Sako ,  Aya Miyazaki ,  Akira Sakaigawa ,  Mitsuhiro Koden

IPC分类号： G02F1/13 ,  C09K19/52 ,  G02F1/137 ,  G02F1/141 ,  C09K19/02

CPC分类号： G02F1/141 ,  G02F2001/13775

摘要： A polymer having spontaneous polarization with the same codes as liquid crystal is introduced into a liquid crystal layer of the smectic liquid crystal cell so that the responding speed is improved (second liquid crystal cell). In another way, a polymer having spontaneous polarization with opposite codes to the liquid crystal is introduced into liquid crystal showing .tau.-V.sub.min characteristic so that a driving voltage is lowered (first liquid crystal cell). These polymers are previously added to a liquid crystal composite before injecting into the liquid crystal cell. In another way, after a photochemically polymeric monomer is added to the liquid crystal composite and the obtained product is injected into the liquid crystal cell, the monomer is polymerized by the projection of a light. Furthermore, the liquid crystal cell into which the polymer is introduced is heated again so as to show I phase and is cooled so that the tone display is realized.

摘要翻译： 将具有与液晶相同代码的自发极化的聚合物引入到近晶液晶单元的液晶层中，从而提高响应速度（第二液晶单元）。 另一方面，将具有与液晶相反的代码的具有自发极化的聚合物引入到表现出τ-Vmin特性的液晶中，使得驱动电压降低（第一液晶单元）。 这些聚合物预先在注入液晶单元之前加入到液晶复合材料中。 另一方面，将光化学聚合单体添加到液晶复合体中后，将所得产物注入到液晶单元中，通过投影光聚合单体。 此外，再次加热其中引入聚合物的液晶单元以显示I相并被冷却，从而实现色调显示。