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    • 3. 发明授权
    • Liquid crystal display material, liquid crystal display method and liquid crystal display device
    • 液晶显示材料,液晶显示方法和液晶显示装置
    • US06532046B1
    • 2003-03-11
    • US09695292
    • 2000-10-25
    • Yuji YamashitaKeiko KurataKouji OoaeRyuzo Fukao
    • Yuji YamashitaKeiko KurataKouji OoaeRyuzo Fukao
    • G02F1137
    • G02F1/132C09K19/544G02F1/1334
    • The object of the present invention is to provide a novel liquid crystal display material having an excellent contrast ratio, a display method and a display device using the material. The present invention uses a liquid crystal display material comprising a polymer in which a liquid crystal is dispersed in a dissolvable state or a phase separable state, wherein the liquid crystal dissolves in the polymer at high temperatures and separates from the polymer at low temperatures, and a contrast ratio (B/A) of a reflectance (A) of the display material cooled from the dissolution state at a rate of 10° C./sec and a reflectance (B) of the display material cooled from the dissolution state at a rate of 4° C./sec is not less than 2. The image forming state can be maintained by controlling the cooling rate from the dissolution state to maintain the liquid crystal in translucent state.
    • 本发明的目的是提供一种具有优异对比度的新型液晶显示材料,显示方法和使用该材料的显示装置。 本发明使用包含聚合物的液晶显示材料,其中液晶以可溶解状态或相分离状态分散,其中液晶在高温下溶解在聚合物中并在低温下与聚合物分离;以及 从溶解状态以10℃/秒的速度冷却的显示材料的反射率(A)与从溶解状态冷却的显示材料的反射率(B)的对比度(B / A) 4℃/秒的速率不小于2.可以通过控制从溶解状态的冷却速度来保持液晶为半透明状态来保持图像形成状态。