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    • 43. 发明授权
    • Light control element, optical device, and electrical device, and method of producing thereof
    • 光控元件,光学元件及电气元件及其制造方法
    • US06486932B1
    • 2002-11-26
    • US09693912
    • 2000-10-23
    • Kenji NakaoSeiji NishiyamaHirofumi KubotaTsuyoshi UemuraMasao Yamamoto
    • Kenji NakaoSeiji NishiyamaHirofumi KubotaTsuyoshi UemuraMasao Yamamoto
    • G02F11333
    • G02F1/1341G02F1/133377G02F1/1334G02F2001/133368
    • 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.
    • 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
    • 44. 发明授权
    • Macromolecular dispersion type liquid crystal display element and method of manufacturing the same
    • 高分子分散型液晶显示元件及其制造方法
    • US06368680B1
    • 2002-04-09
    • US09712249
    • 2000-11-15
    • Hirofumi KubotaShinya KosakoKenji NakaoNoriko NaitoTsuyoshi UemuraMasao Yamamoto
    • Hirofumi KubotaShinya KosakoKenji NakaoNoriko NaitoTsuyoshi UemuraMasao Yamamoto
    • C09K1938
    • C09K19/544C09K2019/546G02F1/1334Y10T428/10Y10T428/2984
    • 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.
    • 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。
    • 45. 发明授权
    • Macromolecular dispersion type liquid crystal display element and method of manufacturing the same
    • 高分子分散型液晶显示元件及其制造方法
    • US06221443B1
    • 2001-04-24
    • US09386857
    • 1999-08-31
    • Hirofumi KubotaShinya KosakoKenji NakaoNoriko NaitoTsuyoshi UemuraMasao Yamamoto
    • Hirofumi KubotaShinya KosakoKenji NakaoNoriko NaitoTsuyoshi UemuraMasao Yamamoto
    • C09K1938
    • G02F1/1334C09K19/544C09K2019/546Y10T428/10
    • 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.
    • 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。
    • 50. 发明授权
    • Actuator
    • 执行器
    • US4551975A
    • 1985-11-12
    • US681126
    • 1984-12-13
    • Masao YamamotoTetsuo Fujiwara
    • Masao YamamotoTetsuo Fujiwara
    • B25J9/10H01H61/01F01K7/06
    • H01H61/0107B25J9/1085
    • An actuator is arranged such that an operation stroke is obtained by a shape memory element made of a shape memory alloy member for recovering a memorized shape when the shape memory alloy member is heated, and that shape recovery control of the shape memory element is performed by Joule heat generated by a current supplied thereto. The shape memory element of this actuator has a mechanism such as conductive layers made of copper-plated layers covering part of the surface of the shape memory alloy. This mechanism decreases an electrical resistance of at least one portion of the element such that it is smaller than the electrical resistance of any other portion thereof. The conductive layers contribute to the partial shape recovery control of the shape memory element with high precision.
    • 致动器被布置成使得通过由形状记忆合金构件形成的形状记忆元件获得操作行程,用于当形状记忆合金构件被加热时恢复记忆形状,并且形状记忆元件的形状恢复控制由 由提供给其的电流产生的焦耳热。 该致动器的形状记忆元件具有诸如覆盖形状记忆合金的表面的一部分的由镀铜层形成的导电层的机构。 该机构降低元件的至少一部分的电阻,使得其小于其任何其它部分的电阻。 导电层有助于高精度地形状记忆元件的局部形状恢复控制。