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The Lighting Principle of Mobile Phone Screen
for iPhone For Samsung
Dec 14, 2022

The Lighting Principle of Mobile Phone Screen

Although the LCD screen can display thousands of colours, its internal light source has only one colour. It can only emit white light. So how do people make this one light change into thousands of colours? They use a material called liquid crystal. It can control the amount of voltage, so as to control the amount of light that comes through. 
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