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<body><h1><a name="TFT"></a>TFT</h1>Thin
film transistor (TFT) is a type of display screen. It is based on
active-matrix technology where each pixel of the screen is controlled
by 1-4 transistors. <a href="http://en.wikipedia.org/wiki/Transistor">Transistor</a> is a semiconductor device that is used
to switch or amplify electronic signals.<br><br>A device with TFT screen has better resolution, image quality and contrast ratio.<br><br>See Also<br><br style="font-weight: bold;"><a href="http://www.google.com/url?q=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FThin-film_transistor&amp;sa=D&amp;sntz=1&amp;usg=AFrqEzcNYaFfqRD5_vNzbzi-HxrtHcQ0Og">Thin Film Transistor</a></body></html>