Is the technology used in most flat panel monitors.
TFT-LCD = thin film transistor liquid cristal display
The screen uses liquid crystal to control the passage of light. The front glass is fitted with a colour filter, while the back glass has transistors fabricated on it. A light source, called the backlight unit, is located at the back of the panel. When voltage is applied to a transistor, the liquid crystal is bent, allowing light to pass through to form a pixel. The colour filter of the front glass gives the pixel its own colour. The combination of these pixels in different colours forms the image on the panel.
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