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[* icon_note] And now, join us for '''Science with iFixit''' time as we shine some light on the inner workings of an LCD.
[* black] Ever wonder what a polarizing film does? Take a walk with us as we explain just how LCD's work and why they need polarizing film.
[* black] To start, the backlight shoots light through a thin layer of liquid crystals. As the light passes through,through it's reflected at different angles by the crystals' orientation.
[* black] To start, the backlight shoots light through a thin layer of liquid crystals. As the light passes through,through it's reflected at different angles by the crystals' orientation.
[* black] These angles are what determine the color of the light we see. In order to change the angle (and by extension the color) we apply a voltage across the liquid crystals that causes them to change their orientation.