When light inputs the surface of optical elements, there is reflection as well as refraction, so ghost light come into being, its focus is called ghost image.

光学元件表面在折射时都存在反射，从而存在设计意图之外的杂散光，其会聚点即所谓鬼点。

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Note: the "ghost" refers to the working voltage Angle of 60 degrees (to display the surface as the base) should not be displayed on the LCD display Dan vaguely.

注：“重影”指在工作电压下60度视角(以显示面为基准)液晶不该显示的段位隐约显示。

youdao

Note: the "ghost" refers to the working voltage Angle of 60 degrees (to display the surface as the base) should not be displayed on the LCD display Dan vaguely.

注：“重影”指在工作电压下60度视角(以显示面为基准)液晶不该显示的段位隐约显示。

youdao