CNET GLOSSARY: Terms for the techie
A technology used in creating displays for notebook computers, tablet PCs, personal digital assistants (PDAs), mobile phones, and flat-panel monitors for PC systems. This type of display consists of an electrically reactive liquid-crystal substance sandwiched between two sheets of polarizing material. An electric current passed through the liquid causes the crystals to align so that light can or cannot pass through them, thus creating the images on the screen. LCD screens are slim and light and can be produced in a wide range of sizes. They come in two main types: active matrix (TFT) and the decreasingly common passive matrix.
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