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shadow mask
noun
Television.
- a perforated metal plate situated behind the faceplate of a color television picture tube and having holes aligned to insure that each of three electron beams strikes only its corresponding red, green, or blue phosphor dot.
shadow mask
noun
- television a perforated metal sheet mounted close to the phosphor-dotted screen in some colour television tubes. The holes are positioned so that each of the three electron beams strikes the correct phosphor dot producing the required colour mixture in the image
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亚洲网紅露点 History and Origins
Origin of shadow mask1
First recorded in 1950鈥55
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Example Sentences
Examples have not been reviewed.
Sony鈥檚 iconic Trinitron abandoned the perforated metal 鈥渟hadow mask鈥 that most color TVs used to keep their electron streams separate, for instance, using vertical wires that produced bright, clean colors and a flatter screen.
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