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1. 发明授权

US5307187A Liquid crystal element with higher resistivity in the encapsulation medium than in the liquid crystal 失效
标题翻译：在封装介质中具有比在液晶中更高的电阻率的液晶元件
公开(公告)号：US5307187A
公开(公告)日：1994-04-26
申请号：US904680
申请日：1992-06-26
申请人： Kazuyuki Sunohara , Koichiro Shirota , Kenji Sano
发明人： Kazuyuki Sunohara , Koichiro Shirota , Kenji Sano
IPC分类号： G02F1/137 , C09K19/52 , C09K19/54 , G02F1/1334 , G09F9/35 , G02F1/13
CPC分类号： C09K19/544 , C09K19/52 , G02F1/1334
摘要： A liquid crystal display element comprises a liquid crystal material having a resistivity .rho..sub.LC (.OMEGA..multidot.cm) and a polymer matrix material having a resistivity .rho..sub.p (.OMEGA..multidot.cm). The ratio .rho..sub.LC /.rho..sub.p is defined to fall within a range of between 1 and 10.sup.5 (1.ltoreq..rho..sub.LC /.rho..sub.p .ltoreq.10.sup.5). Also, the particles diameters of the polymer matrix material or the liquid crystal material are distributed such that at least two peaks each having a half value width of at least 0.5 .mu.m are present within a range of between 0.5 .mu.m and 2.5 .mu.m. Further, a protective layer is formed to cover the outer surface of the liquid crystal material. The particular construction permits manufacturing a polymer dispersion type liquid crystal display element, which exhibits a high response speed, which can be operated with a low driving voltage, and which permits a high contrast.
摘要翻译：液晶显示元件包括具有电阻率（rho）LC（（Ω）* cm）的液晶材料和具有电阻率（rho）p（（Ω）* cm）的聚合物基质材料。比值（rho）LC /（rho）p被定义为在1和105（1 <=（rho）LC /（rho）p <= 105）的范围内。此外，聚合物基质材料或液晶材料的粒径分布成使得至少两个半值宽度至少为0.5（my）m的峰存在于0.5（m）和 2.5（我）m。此外，形成保护层以覆盖液晶材料的外表面。该特定结构允许制造具有高响应速度的聚合物分散型液晶显示元件，其可以以低驱动电压操作，并且允许高对比度。

2. 发明授权

US5303073A Dispersion-type liquid crystal display element with oriented dichroic dye in the support media 失效
标题翻译：分散型液晶显示元件，在支持介质中具有定向二色性染料
公开(公告)号：US5303073A
公开(公告)日：1994-04-12
申请号：US903282
申请日：1992-06-24
申请人： Koichiro Shirota , Kazuyuki Sunohara
发明人： Koichiro Shirota , Kazuyuki Sunohara
IPC分类号： G09F9/35 , C09K19/54 , C09K19/60 , G02F1/1334 , G02F1/1347 , G02F1/137 , G02F1/13
CPC分类号： C09K19/544 , C09K19/60 , G02F1/1334 , G02F1/13476 , C09K2019/546 , G02F1/13475 , G02F2202/04
摘要： A liquid crystal display element having a pair of substrates at least one of which is transparent, and a light control layer consisting of a dispersion type liquid crystal material held between the substrates. The dispersion type liquid crystal material consists of a supporting medium, liquid crystal molecules and a dichromatic dye which is oriented within the supporting medium. It is desirable to arrange a polarized light selecting element to cover the outer surface of one of the substrates. In one embodiment, the light control layer is of a laminate structure consisting of a first dispersion type liquid crystal layer prepared by allowing the dichromatic dye to be dispersed and oriented in a first direction within the supporting medium and a second dispersion type liquid crystal layer prepared by allowing another dichromatic dye, which is of the same type as that of the dichromatic dye dispersed in the first dispersion type liquid crystal layer, to be dispersed and oriented in a second direction within the supporting medium.
摘要翻译：一种液晶显示元件，其具有至少一个是透明的一对基板，以及由保持在基板之间的分散型液晶材料构成的光控制层。分散型液晶材料由支持介质，液晶分子和定向在载体介质内的二色染料组成。期望设置偏振光选择元件以覆盖其中一个基板的外表面。在一个实施例中，光控制层是由通过使二色染料在支撑介质内沿第一方向分散和取向而制备的第一分散型液晶层和制备的第二分散型液晶层的层压结构通过允许与分散在第一分散型液晶层中的二色染料相同类型的另一种二色染料在支持介质内沿第二方向分散和取向。

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