申请人:Ishihara Shoichi
公开号:US20050041196A1
公开(公告)日:2005-02-24
A dielectric liquid layer is sandwiched between a pixel substrate and a counter substrate, at least one of which is a transparent. The dielectric liquid layer is made from a liquid that is macroscopically isotropic and transparent, but has clusters microscopically, the clusters being agglomerations in each of which liquid crystal molecules are aligned in short distance order. Because of the presence of the cluster even at a temperature equal to or higher than the liquid crystal-isotropic phase transition temperature of a liquid crystal compound, reduction of the Kerr effect is suppressed even if the temperature rises. For example, clusters containing, for example, (a) a liquid crystal compound having an ability of forming an intermolecular hydrogen bond, (b) a liquid crystal compound having a smectic phase, (c) a particulate, (d) or the like, has a large cluster size and thus have a long life even if the temperature rises.
像素基板和反基板之间夹有介电液体层,其中至少有一个基板是透明的。电介质液体层是由一种液体制成的,这种液体宏观上各向同性且透明,但微观上有液晶团,液晶团是液晶分子按短距离顺序排列的团聚体。由于晶簇的存在,即使在温度等于或高于液晶化合物的液晶各向同性相变温度时,也能抑制克尔效应的减弱,即使温度升高也是如此。例如,含有(a)具有形成分子间氢键能力的液晶化合物、(b)具有胶凝相的液晶化合物、(c)微粒、(d)或类似物的簇具有较大的簇尺寸,因此即使温度升高,也具有较长的使用寿命。