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    • 5. 发明授权
    • Polymer dispersion type liquid crystal display element and reflection
type liquid crystal display device
    • 聚合物分散型液晶显示元件和反射型液晶显示装置
    • US5342545A
    • 1994-08-30
    • US999138
    • 1992-12-31
    • Nobuaki YamadaToshiyuki HiraiNoriaki OnishiShuichi Kohzaki
    • Nobuaki YamadaToshiyuki HiraiNoriaki OnishiShuichi Kohzaki
    • G02B5/02G02F1/1333G02F1/1334G02F1/1335G02F1/1347C09K19/00G02F1/13
    • G02F1/1334C09K19/544G02F1/13476
    • A polymer dispersion type liquid crystal display element includes two layers of polymer dispersion type liquid crystal layers being overlaid and having liquid crystal drops positive in dielectric anisotropy dispersed in a polymer in which light scattering and transmission are controlled electrically, a transparent support element for scattering light between the polymer dispersion type liquid crystal layers, being interposed and a liquid crystal display device having a colored reflector plate disposed on the back of one polymer dispersion type liquid crystal layer. In one of the two layers of polymer dispersion type liquid crystal layers, a liquid crystal layer containing a dichroic dye is dispersed, and coloring and light transmission are electrically controlled, and a white reflector plate is disposed on the back side of one of the polymer dispersion type liquid crystal layers to realize the liquid crystal display device. By composing the liquid crystal display element and liquid crystal display device in such constitutions, both light scattering capacity and contrast may be enhanced at the same time.
    • 聚合物分散型液晶显示元件包括两层聚合物分散型液晶层,它们被叠加并具有分散在其中光散射和透射被控制的聚合物中的介电各向异性呈正的液晶滴,用于散射光的透明支撑元件 介于聚合物分散型液晶层之间,以及具有设置在一个聚合物分散型液晶层背面的着色反射板的液晶显示装置。 在两层聚合物分散型液晶层之一中,分散含有二色性染料的液晶层,并且着色和透光被电控制,并且白色反射板设置在聚合物之一的背面 分散型液晶层实现液晶显示装置。 通过以这种结构构成液晶显示元件和液晶显示装置,可以同时提高光散射能力和对比度。