介绍了一种新型纳米结构液晶取向膜技术，详述该取向膜的机理和最新进展。该取向膜本身是不均匀的，但不均匀性在亚微米以下，可以为液晶分子提供均匀的取向，并且产生任何在0~90°范围内的预倾角，具有良好的可靠性和可控性。分析了获得这样均匀取向性能的条件，提出3种产生纳米结构液晶取向膜的方法。

This paper reviews recent results on nanostructured alignment surfaces for liquid crystals. These surfaces are heterogeneous and yet can give uniform alignment of the liquid crystal and are able to give any pretilt angles in the range of 0~90° reliably and controllably. The conditions for having such uniform alignment properties are studied. Three techniques for the generation of such nanostructured surfaces are reviewed.