Daniel Larlham Jr.
这种效果在物理学上被称为「朗伯余弦定律」（Lambert’s Cosine Law），其核心特征就是无论从哪个角度观察，屏幕的亮度看起来都是一样的。。关于这个话题，WPS官方版本下载提供了深入分析
借助光栅原理，让屏幕发出的光只能从正面特定角度范围内看到，从而实现「大角度防窥」的效果：，这一点在同城约会中也有详细论述
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