shadow mask

noun

A plate punched with tiny holes that separate the coloured 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 if they pass through the holes.

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Meanings

nounshadow mask (plural shadow masks)

plural shadow masks

  1. broadcastingA plate punched with tiny holes that separate the coloured 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 if they pass through the holes.
Cite this entry
APA

shadow mask. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/shadow%20mask

MLA

“shadow mask.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/shadow%20mask. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “shadow mask,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/shadow%20mask.

Source: shadow mask on Wiktionary, CC BY-SA 4.0.