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1. 发明授权

US06486932B1 Light control element, optical device, and electrical device, and method of producing thereof 失效
标题翻译：光控元件，光学元件及电气元件及其制造方法
公开(公告)号：US06486932B1
公开(公告)日：2002-11-26
申请号：US09693912
申请日：2000-10-23
申请人： Kenji Nakao , Seiji Nishiyama , Hirofumi Kubota , Tsuyoshi Uemura , Masao Yamamoto
发明人： Kenji Nakao , Seiji Nishiyama , Hirofumi Kubota , Tsuyoshi Uemura , Masao Yamamoto
IPC分类号： G02F11333
CPC分类号： G02F1/1341 , G02F1/133377 , G02F1/1334 , G02F2001/133368
摘要： A liquid crystal display device of the invention comprises a transparent substrate 2, a transparent electrode 6 formed on the inner surface of the transparent substrate 2, an alignment layer 7 formed over the transparent electrode 6, a composite 5 formed over the alignment layer 7, and a transparent electrode 8 on the upper surface of the composite 5. The composite 5 comprises a transparent polymer 4 and a liquid crystal droplet 3. The liquid crystal droplet 3 is configured in a substantially hemispherical shape such that a bottom surface of the droplet is in contact with the alignment layer and the remaining surface excluding the bottom surface bulges towards an upper surface of the composite 5. The polymer 4 constitutes the other surface of the composite 5 such that the polymer 4 covers the hemispherical liquid crystal droplets 3. Thus, the invention achieves a liquid crystal display device in which one of the pair of substrates is eliminated and thereby the weight of the device is significantly reduced.
摘要翻译：本发明的液晶显示装置包括透明基板2，形成在透明基板2的内表面上的透明电极6，在透明电极6上形成的取向层7，在取向层7上形成的复合体5，以及在复合材料5的上表面上的透明电极8.复合材料5包括透明聚合物4和液晶微滴3.液晶微滴3构成为大致半球状，使得液滴的底面为与对准层接触并且除了底表面之外的剩余表面朝向复合材料5的上表面凸出。聚合物4构成复合材料5的另一表面，使得聚合物4覆盖半球形液晶微滴3.因此，本发明实现了一种液晶显示装置，其中一对基板中的一个被去除，从而装置的重量为s 明显减少

2. 发明授权

US06368680B1 Macromolecular dispersion type liquid crystal display element and method of manufacturing the same 失效
标题翻译：高分子分散型液晶显示元件及其制造方法
公开(公告)号：US06368680B1
公开(公告)日：2002-04-09
申请号：US09712249
申请日：2000-11-15
申请人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
发明人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
IPC分类号： C09K1938
CPC分类号： C09K19/544 , C09K2019/546 , G02F1/1334 , Y10T428/10 , Y10T428/2984
摘要： A method of making a polymer dispersion type liquid crystal display element including a phase separation step. The method calls for placing a liquid crystal polymer precursor compatible solution having a liquid crystal and a polymer precursor between a pair of substrates, each having an inside electrode, and irradiating a substrate surface with ultraviolet. The radiation causes a phase separation of the liquid crystal and the polymer precursor as well as polymerization and curing of the precursor. The method forms a polymer dispersion type liquid crystal having liquid crystal droplets dispersed and held in a continuous matrix phase or a three-dimensional network matrix. During the phase separation step, the irradiation time is controlled from the beginning of irradiation to the completion of phase separation to influence any of the degree of polymerization of the precursor in the solution, the rate of phase separation, and the generating density of the separated liquid crystal nuclei so that the dispersed liquid crystal droplets have even particle sizes.
摘要翻译：一种制备包括相分离步骤的聚合物分散型液晶显示元件的方法。该方法要求将具有液晶和聚合物前体的液晶聚合物前体相容溶液放置在一对基板之间，每个基板具有内部电极，并用紫外线照射基板表面。辐射导致液晶和聚合物前体的相分离以及前体的聚合和固化。该方法形成具有分散并保持在连续矩阵相位或三维网络矩阵中的液晶小滴的聚合物分散型液晶。在相分离步骤中，照射时间从照射开始到相分离完成进行控制，以影响前体在溶液中的任何聚合度，相分离速率和分离出的发生密度液晶核，使得分散的液晶微滴具有均匀的粒径。

3. 发明授权

US06221443B1 Macromolecular dispersion type liquid crystal display element and method of manufacturing the same 失效
标题翻译：高分子分散型液晶显示元件及其制造方法
公开(公告)号：US06221443B1
公开(公告)日：2001-04-24
申请号：US09386857
申请日：1999-08-31
申请人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
发明人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
IPC分类号： C09K1938
CPC分类号： G02F1/1334 , C09K19/544 , C09K2019/546 , Y10T428/10
摘要： In a liquid crystal display element in which liquid crystal droplets are dispersed and held in polymer composition sandwiched between a pair of substrates each having an electrode at the inside thereof, the liquid crystal droplets are formed to have substantially the same shape and size with minimized variations in particle size so that the liquid crystal droplets can be stably kept in the bipolar-form orientation pattern within a wide temperature range, to minimize hysteresis of transmittance of light to a voltage applied across the electrodes. Similar effects can be produced by tilt angles of liquid crystal molecules in the vicinity of interface between the liquid crystal droplets and the polymer compound being minimized or by anchoring strength being increased, by adding an interfacial restrictive force controlling material to a liquid crystal polymer precursor compatible solution or raising a temperature under which polymerization of polymers and phase separation between the polymer and the liquid crystal are performed by irradiation of ultraviolet. Also, an improved response to electric field can be provided within a wide operation temperature range by allowing surface tension of liquid crystal material to be smaller than critical surface tension of an insulating film or surface tension of the polymer compound. Accordingly, the liquid crystal display element is available for forming displays, such as television sets and personal computers, capable of displaying moving pictures and the like within a wide operation temperature range.
摘要翻译：在将液晶微滴分散并保持在夹在其内部具有电极的一对基板的聚合物组合物中的液晶显示元件中，液晶微滴形成为具有基本相同的形状和尺寸，具有最小的变化使得液晶小滴能够在宽温度范围内稳定地保持在双极型取向图案中，以使光的透射率滞后到施加在电极上的电压。通过在液晶聚合物前体相容性中加入界面限制力控制材料，可以在液晶微滴与高分子化合物之间的界面附近的倾斜角度最小化或锚固强度提高时产生类似的效果溶液或提高聚合物聚合和聚合物和液晶之间的相分离通过紫外线照射进行的温度。此外，通过使液晶材料的表面张力小于绝缘膜的临界表面张力或高分子化合物的表面张力，能够在宽的工作温度范围内提供对电场的改善的响应。因此，液晶显示元件可用于形成在宽的工作温度范围内能够显示运动图像等的显示器，例如电视机和个人计算机。

4. 发明授权

US6088075A Liquid crystal display device, method for producing the same, and projection-type display apparatus including the liquid crystal display device 失效
标题翻译：液晶显示装置及其制造方法以及包括该液晶显示装置的投影型显示装置
公开(公告)号：US6088075A
公开(公告)日：2000-07-11
申请号：US72604
申请日：1998-05-05
申请人： Kenji Nakao , Masao Yamamoto , Tsuyoshi Uemura
发明人： Kenji Nakao , Masao Yamamoto , Tsuyoshi Uemura
IPC分类号： G02F1/1334 , G02F1/1335 , C09K19/02 , G02F1/1333
CPC分类号： G02F1/1334
摘要： A liquid crystal display device includes a pair of substrates; a liquid crystal layer interposed between the pair of substrates; and an electrode for applying a voltage to the liquid crystal layer. The liquid crystal layer includes a polymer dispersed liquid crystal material having a polymer phase and a liquid crystal phase, and fulfills the conditions represented by: R.multidot..DELTA.n>0.3 and 8R 0.35 and d
摘要翻译：液晶显示装置包括一对基板; 夹在所述一对基板之间的液晶层; 以及用于向液晶层施加电压的电极。液晶层包括具有聚合物相和液晶相的聚合物分散液晶材料，并且满足以下条件：Rx DELTA n> 0.3和8R 0.35且d <1.2dc，其中dc表示当液晶层的厚度变化10％时允许液晶层的散射增益变为20％以下的液晶层的最小厚度。

5. 发明授权

US5796453A Liquid crystal display device, method for producing the same, and projection-type display apparatus including the liquid crystal display device 失效
标题翻译：液晶显示装置及其制造方法以及包括该液晶显示装置的投影型显示装置
公开(公告)号：US5796453A
公开(公告)日：1998-08-18
申请号：US690569
申请日：1996-07-31
申请人： Kenji Nakao , Masao Yamamoto , Tsuyoshi Uemura
发明人： Kenji Nakao , Masao Yamamoto , Tsuyoshi Uemura
IPC分类号： G02F1/1334 , G02F1/1333
CPC分类号： G02F1/1334
摘要： A liquid crystal display device includes a pair of substrates; a liquid crystal layer interposed between the pair of substrates; and an electrode for applying a voltage to the liquid crystal layer. The liquid crystal layer includes a polymer dispersed liquid crystal material having a polymer phase and a liquid crystal phase, and fulfills the conditions represented by: 2.585.multidot.d.sup.(-1/3) -0.3
摘要翻译：液晶显示装置包括一对基板; 夹在所述一对基板之间的液晶层; 以及用于向液晶层施加电压的电极。液晶层包括具有聚合物相和液晶相的聚合物分散液晶材料，并且满足以下条件：2.585xd（ - + E，fra 1/3 + EE）-0.3

6. 发明授权

US06365239B1 Macromolecular dispersion type liquid crystal display element and method of manufacturing the same 失效
标题翻译：高分子分散型液晶显示元件及其制造方法
公开(公告)号：US06365239B1
公开(公告)日：2002-04-02
申请号：US09712248
申请日：2000-11-15
申请人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
发明人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
IPC分类号： C09K1938
CPC分类号： C09K19/544 , C09K2019/546 , G02F1/1334 , Y10T428/10 , Y10T428/2984
摘要： A polymer dispersion type liquid crystal display element having a polymer dispersion type liquid crystal sandwiched between a pair of substrates, each having an inside electrode, is disclosed. The liquid crystal has liquid crystal droplets dispersed and held in either a polymer compound-containing continuous phase matrix or a three dimensional network of such a matrix. In one embodiment, the capacitance hysteresis, defined as Chys=(C2−C1)/Cmax, does not exceed 1.5%. C1 is the capacitance for an applied voltage that is in the process of rising a voltage-capacitance characteristic; C2 is the capacitance of an applied voltage in the process of dropping; and C2 is the capacitance of a maximum applied voltage. In another embodiment, the Chys value does not exceed 0.6% when the optical hysteresis Thys is (P2−P1)/Pmax where P1 is the intensity of transmitted light of an applied rising voltage V, P2 is the intensity of transmitted light of an applied dropping voltage, and Pmax is the intensity of transmitted light of a maximum applied voltage.
摘要翻译：公开了一种聚合物分散型液晶显示元件，其具有夹在一对基板之间的聚合物分散型液晶，每个基板具有内部电极。液晶具有分散并保持在含高分子化合物的连续相矩阵或这种基体的三维网络中的液晶小滴。在一个实施例中，定义为Chys =（C2-C1）/ Cmax的电容滞后不超过1.5％。 C1是正在上升电压电容特性的施加电压的电容; C2是放电过程中施加电压的电容; C2是最大施加电压的电容。在另一个实施例中，当光滞后Thys是（P2-P1）/ Pmax时，Chys值不超过0.6％，其中P1是施加的上升电压V的透射光的强度，P2是所施加的透射光的强度降低电压，Pmax是最大施加电压的透射光强度。

7. 发明授权

US06551667B2 Macromolecular dispersion type liquid crystal display element and method of manufacturing the same 失效
标题翻译：高分子分散型液晶显示元件及其制造方法
公开(公告)号：US06551667B2
公开(公告)日：2003-04-22
申请号：US10040449
申请日：2002-01-09
申请人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
发明人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
IPC分类号： C09K1938
CPC分类号： C09K19/544 , C09K2019/546 , G02F1/1334 , Y10T428/10 , Y10T428/2984
摘要： A polymer dispersion type liquid crystal display element having liquid crystal droplets dispersed and held in a continuous matrix phase including polymer compound or a three dimensional network form of matrix including polymer compound dispersed between a pair of substrates, each having an inside electrode. The liquid crystal droplets are in all areas but for an area in the vicinity of the interfaces between the substrates. The liquid crystal droplets are ellipsoid of revolution forms of substantially the same size.
摘要翻译：一种聚合物分散型液晶显示元件，其具有分散并保持在包含聚合物化合物的连续基质相中的液晶微滴或包含分散在一对基板之间的高分子化合物的三维网状形式的基体，每个基底具有内部电极。液晶液滴在所有区域中，但是在基板之间的界面附近的区域。液晶液滴是具有基本相同尺寸的旋转形式的椭圆形。

8. 发明授权

US06355315B1 Macromolecular dispersion type liquid crystal display element and method of manufacturing the same 失效
标题翻译：高分子分散型液晶显示元件及其制造方法
公开(公告)号：US06355315B1
公开(公告)日：2002-03-12
申请号：US09712845
申请日：2000-11-15
申请人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
发明人： Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
IPC分类号： C09K1938
CPC分类号： C09K19/544 , C09K2019/546 , G02F1/1334 , Y10T428/10 , Y10T428/2984
摘要： A method of forming a polymer dispersion type liquid crystal display element having a polymer dispersion type liquid crystal sandwiched between a pair of substrates, each having an inside electrode, is disclosed. The droplets either are dispersed and held in a continuous matrix phase of the polymer or held in a three dimensional network of a matrix containing the polymer. In the method, the value of (V90×R/d is at least 0.7 where V90 is that voltage required for transmittance of a voltage-transmittance characteristic of the display element to be 90% when the element is at 30° C., d is the interval between the substrate pair, and R is the average particle size of the liquid crystal droplets. In the method, a liquid crystal polymer precursor compatible solution containing a liquid crystal and a polymer precursor placed between the substrate pair is held at a temperature greater than the thermal phase separation temperature of the precursor solution, which is irradiated with ultraviolet to permit phase separation of the liquid crystal and the polymer precursor.
摘要翻译：公开了一种形成具有夹在一对基板之间的聚合物分散型液晶的聚合物分散型液晶显示元件的方法，每个基板具有内部电极。液滴分散并保持在聚合物的连续基质相中或保持在含有聚合物的基质的三维网络中。在该方法中，当V90为元素为30℃时的显示元件的电压 - 透光率特性的透射率的透过率所需的电压，V90xR / d为0.7以上，d为衬底对之间的间隔，R是液晶微滴的平均粒径，在该方法中，将含有液晶的液晶聚合物前体相容溶液和位于衬底对之间的聚合物前体保持在大于前体溶液的热相分离温度，其被紫外线照射以允许液晶和聚合物前体的相分离。

9. 发明授权

US06529252B2 Polymer dispersion type liquid crystal display element, producing method therefor and apparatus for use in the producing method 失效
标题翻译：聚合物分散型液晶显示元件，其制造方法和制造方法中使用的装置
公开(公告)号：US06529252B2
公开(公告)日：2003-03-04
申请号：US10075403
申请日：2002-02-15
申请人： Kenji Nakao , Shinya Kosako , Tsuyoshi Uemura , Hirofumi Kubota , Masao Yamamoto , Kazuo Inoue , Seiji Nishiyama
发明人： Kenji Nakao , Shinya Kosako , Tsuyoshi Uemura , Hirofumi Kubota , Masao Yamamoto , Kazuo Inoue , Seiji Nishiyama
IPC分类号： G02F1334
CPC分类号： G02F1/1334 , G02F1/1341
摘要： A polymer dispersion type liquid crystal (PDLC) display element comprising a complex of polymers and liquid crystal droplets held between a pair of substrates. The liquid crystal droplets are deformed into a compressed structure of their being contracted in a cell gap direction and an amount of deformation of the liquid crystal droplets is set to be in range in which a phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals. The amount of deformation of the liquid crystal droplets, is set to be in range in which the phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals can provide an increased tendency of the liquid crystal molecules to align in parallel to a phase boundary of the substrates. The DPLC display element having excellent threshold characteristics and scattering characteristics and high display characteristics can be achieved.
摘要翻译：一种聚合物分散型液晶（PDLC）显示元件，包括聚合物的复合物和保持在一对基板之间的液晶微滴。液晶小滴变形为压缩结构，它们在单元间隙方向上收缩，并且液晶微滴的变形量设定在液晶分子在单元间隙方向上升的现象不是由液晶的排除体积效应引起的。液晶小滴的变形量被设定为在液晶间隙方向上升的液晶分子的现象不是由液晶排除体积效应引起的范围，可以提高液体的趋势晶体分子与衬底的相边界平行排列。可以实现具有优异的阈值特性和散射特性以及高显示特性的DPLC显示元件。

10. 发明授权

US06452650B1 Polymer dispersion type liquid crystal display element, producing method therefor and apparatus for use in the producing method 失效
标题翻译：聚合物分散型液晶显示元件，其制造方法和制造方法中使用的装置
公开(公告)号：US06452650B1
公开(公告)日：2002-09-17
申请号：US08934901
申请日：1997-09-22
申请人： Kenji Nakao , Shinya Kosako , Tsuyoshi Uemura , Hirofumi Kubota , Masao Yamamoto , Kazuo Inoue , Seiji Nishiyama
发明人： Kenji Nakao , Shinya Kosako , Tsuyoshi Uemura , Hirofumi Kubota , Masao Yamamoto , Kazuo Inoue , Seiji Nishiyama
IPC分类号： G02F11334
CPC分类号： G02F1/1334 , G02F1/1341
摘要： A polymer dispersion type liquid crystal display element according to the invention is structured such that a complex of polymer and liquid crystal droplets is held between a pair of substrates. The liquid crystal droplets are deformed into a compressed structure of their being contracted in a cell gap direction and an amount of deformation of the liquid crystal droplets is set to be in range in which a phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals. This construction that the amount of deformation of the liquid crystal droplets is set to be in range in which the phenomenon of liquid crystal molecules rising up in the cell gap direction is not caused by excluded volume effects of the liquid crystals can provide an increased tendency of the liquid crystal molecules to align in parallel to a phase boundary of the substrates. As a result of this, the polymer dispersion type liquid crystal display element having excellent threshold characteristics and scattering characteristics and high display characteristics can be achieved.
摘要翻译：根据本发明的聚合物分散型液晶显示元件被构造成使得聚合物和液晶微滴的复合物保持在一对基板之间。液晶小滴变形为压缩结构，它们在单元间隙方向上收缩，并且液晶微滴的变形量设定在液晶分子在单元间隙方向上升的现象不是由液晶的排除体积效应引起的。将液晶微滴的变形量设定为在液晶间隙方向上升的液晶分子的现象不是由液晶的排除体积效应引起的范围的结构，可以提高液晶分子与衬底的相边界平行排列。结果，可以实现具有优异的阈值特性和散射特性以及高显示特性的聚合物分散型液晶显示元件。

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