掺有反手性分子、表面摩擦方向90°的垂面排列液晶盒的电光特性  

Electro-optic Properties of a Homeotropic Liquid Crystal Cell with 90° Surface Rubbings and a Reverse-Handed Chiral Dopant

作　　者：J-Hyun Lee Zhibing Ge Shin-Tson Wu 史永胜[2] 

机构地区：[1]佛罗里达中央大学光电子学院 [2]陕西科技大学

出　　处：《现代显示》2008年第3期13-16,共4页Advanced Display

摘　　要：研究了掺有手性分子、扭曲角为90°的垂面排列液晶盒的电光特性,该分子的手性方向与液晶扭曲方向相反。在未施加电压时,液晶指向矢呈垂面排列,但是在中间电压状态下,由于电场、表面锚定作用及反手性掺杂作用之间的平衡力矩,大量液晶分子呈垂面排列。本文着重讨论了该模式在液晶显示器方面的潜在应用,尤其是对半透半反射型双层盒的液晶显示器。The electro-optic properties of a 90° twisted-homeotropic liquid crystal （LC）cell with a chiral dopant whose handedness is opposite to the LC twist are studied. In the voltage-off state, the LC directors exhibit a homeotropic alignment. However, in the intermediate voltage state, the bulk LC directors behave like a homogeneous alignment due to the balanced torques between the electric field, surface anchoring, and reversed chiral dopant. Potential applications of this mode for liquid crystal displays, especially for dual-cell-gap transflective liquid crystal displays, are emphasized.

关 键 词：反手性分子 液晶盒 光电特性 

分 类 号：TN141.9[电子电信—物理电子学]