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    • 7. 发明申请
    • Electrooptic light control element, electrooptic display and control medium
    • 电光控制元件,电光显示和控制介质
    • US20060006363A1
    • 2006-01-12
    • US10534977
    • 2003-11-05
    • Michael HeckmeierMarkus CzantaAchim Goetz
    • Michael HeckmeierMarkus CzantaAchim Goetz
    • C09K19/52C09K19/02C09K19/30C09K19/12C09K19/20G02F1/133
    • C09K19/46Y10T428/10
    • The present invention relates to an electro-optical light modulation element, to electro-optical displays and display systems containing elements of this type, such as, for example, television screens and computer monitors, and to the modulation media used. The light modulation elements according to the invention contain a mesogenic modulation medium which is in an optically isotropic phase during operation of the light modulation elements and, besides good contrast, low viewing-angle dependence and very short response times, are particularly distinguished by relatively low driving voltages. The modulation media according to the invention are distinguished by a combination of large dielectric susceptibility in the optically isotropic phase with small enthalpy of clearing or the occurrence of a blue phase. At a temperature of 4° above the clearing point or conversion temperature (T(N*,BP)), the dielectric susceptibility of the modulation medium is preferably 25 or more and the enthalpy of clearing is 1.50 J/g or less.
    • 电光调制元件技术领域本发明涉及一种电光调制元件,包括电光显示器和显示系统,其包含这种类型的元件,例如电视屏幕和计算机监视器,以及所使用的调制介质。 根据本发明的光调制元件包含在光调制元件的操作期间处于光学各向同性相的介晶调制介质,并且除了良好的对比度之外,低视角依赖性和非常短的响应时间特别地被相对较低 驱动电压。 根据本发明的调制介质的特征在于在光学各向同性相中具有较小的介电磁化率的组合,具有小的清除焓或蓝相的发生。 在透明点或转换温度(T(N *,BP))以上4°的温度下,调制介质的介电磁化率优选为25以上,清除焓为1.50J / g以下。