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从色光加色混合的基本特性出发,对两台专业级液晶显示器(LCD)进行了光谱辐亮度测量。对测量结果进行计算表明,显示色与三原色光谱辐亮度函数之间存在线性叠加关系,不同数字驱动值下相同波长的三原色光谱辐亮度函数满足三次多项式的关系。利用这两个关系提出了一种根据数字驱动值和对应的三原色光谱辐亮度函数计算任意显示色的算法。实验验证结果表明,这种计算方法的准确度很高,可以作为LCD颜色特征化的方法。
Starting from the basic characteristics of color mixing and color mixing, spectral radiance measurements were performed on two professional liquid crystal displays (LCDs). The calculated results show that there is a linear additive relationship between the display color and the spectral radiance function of the three primary colors, and the three-primary spectral radiance function with the same wavelength under different digital driving values satisfies the relationship of the cubic polynomial. Using these two relations, an algorithm for calculating any display color based on the digital driving value and the corresponding three primary color spectral radiance function is proposed. Experimental results show that the accuracy of this method is very high and can be used as a method of LCD color characterization.