The Triad (computers) reference article from the English Wikipedia on 24-Apr-2004
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Triad (computers)

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For other meanings see Triad (disambiguation).

In computer terms, a triad is a group 3 phosphor dots on the inside of a computer monitor (CRT-type) of the colors Red, Green, and Blue. Triads are separated by dot pitch. By directing differing amounts of electrons on the 3 phosphor dots, the Triad will display a color by combining the Red Green and Blue elements.

On LCD displays colors are similarly composed of these three colors.

See also Sub-pixel.