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by Rythwon on December 9th, 2009

Rythwon

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What is field emissions

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  • by XT on December 9th, 2009

    XT

    A field emission display (FED) is a flat panel display technology that uses large-area field electron sources to provide electrons that strike colored phosphor to produce a color image. In a general sense, a FED consists of a matrix of cathode ray tubes, each tube producing a single sub-pixel, grouped in threes to form red-green-blue (RGB) pixels.

    FEDs combine the advantages of CRTs, namely their high contrast levels and very fast response times, with the packaging advantages of LCD and other flat panel technologies. They also offer the possibility of requiring less power, about half that of an LCD system. To date, however, manufacturing problems have prevented any FED system from entering commercial production.

    FEDs are closely related to another developing display technology, the surface-conduction electron-emitter display, or SED.

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