It will be known from the obtained expression of the resolution of photoconductor that the column microstructure is benefit to reduce the carrier diffusion in the lateral direction and increase the resolution of the photoconductor 这种各向异性的柱状结构复合光导膜有利于减小光生载流子的横向扩散长度,从而可以提高液晶光阀光导层的分辨率。