There are two types of structure the liquid-crystal display, ranging from the design light sources. [3] In the first type, light is emitted from a backlight, there are countless methods of polarization as the natural light . This light is to pass through a polarizing filter layer first, become plane-polarized light only vertically. This plane-polarized light is transmitted through the plate continued for glass and a transparent electrode layer to the liquid crystal layer to. Then we proceed to the second polarizer filter; with the polarization perpendicular to the first filter, and then go to the observer eye. This type of display is often applied to the color screen in a computer or TV. To create color, the outermost layer, before the light goes out to the human eye, with color filters. In these types of liquid-crystal display Monday, we use natural light enters from the top and mirrors reflector behind, just this light back to the viewer. This is a common structure in all kinds of liquid-crystal display devices of black and white in the pocket. Do not need a light source, they can save energy.
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