Shadow Mask
Cathode ray tube, Television, Computer monitor
978-620-1-61216-7
6201612165
88
2013-08-12
34,00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The shadow mask is one of two major technologies used to manufacture cathode ray tube televisions and computer displays that produce color images. The other approach is aperture grille, better known by its trade name, Trinitron. All early color televisions and the majority of CRT computer monitors used shadow mask technology. Both of these technologies are largely obsolete, having been increasingly replaced since the 1990s by the Liquid Crystal Display. A shadow mask is a metal plate punched with tiny holes that separate the colored phosphors in the layer behind the front glass of the screen. Three electron guns at the back of the screen sweep across the mask, with the beams only reaching the screen when they pass over the holes.
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