In this paper, based on experimental results, a model of the director configuration of amorphous nematic liquid crystal displays(a-n-LCDs) was related. From our study we find that the a-n-LCDs are characterized with disordered surface alignment. Based on the modeling, a detailed analysis of the influence of parameters on display properties is given out, and the discussion shows that d/p=1/4 is not a strict condition for display use of a-n-LCDs, even though d/p > 1/2, good E-O property for display use can also be obtained. The a-n-LCDs supply a way to avoid the rubbing treatment and exhbit display properties of good color reproduction and wide viewing angle. When the value of d/p is increased, the threshold E-O curves become steep, and this supplies the novel n-LCDs with a high-multiplexing capacity.