摘要
本文演示了两种使用新型硅烷作为表面耦合剂的非摩擦取向方法———浸润法和光致液晶(LC)取向法。在浸润法中,可能获得的平行和垂直的两种排列与所用硅烷的烷基链长度有关。110℃的热固化温度,使得浸润法对有源矩阵显示器的低温工艺特别有吸引力。利用紫外光(UV)诱导LC取向可获得平行液晶盒,且液晶指向矢垂直于入射紫外光的偏振方向。这两种方法得到的预倾角约为0.5°。
Two non_rubbing methods involving dipping and photo_induced liquid crystal (LC) alignments were demonstrated using new silanes as surface coupling agents. In the dipping method, both homogeneous and homeotropic alignments can be achieved depending on the alkyl chain length of the silane employed. The 110℃ post curing temperature makes the dipping method especially attractive for low temperature processing of active matrix displays. In the UVinduced LC alognment, homogeneous cells are obtained and the LC directors are perpendicular to the impinging UV polariztion. The pretilt angle of both methods is found to be ～0.5°.
出处
《现代显示》
2000年第1期42-48,共7页
Advanced Display
关键词
液晶显示
浸润
光取向
硅烷表面活性剂
liquid crystal display
dipping
photo-alignment
silane surfactants
