根据LED发光的物理特性和LED控制系统脉宽调制的驱动方式,构建了线性的LED显示颜色的数学模型,并通过CIE1976LUV色彩空间直接与人眼的视觉感受联系起来.分析了LED的相邻灰度级与相邻颜色的色差在人眼视觉感受中与控制系统精度之间的关系,并结合LED发光的离散性,对控制系统精度需求进行了讨论,给出了基于人眼视觉感受的控制系统精度需求的计算方法.该方法在工业制造前就可以根据人眼的视觉感受特性对LED显示屏的控制系统精度进行优化和设计.
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