Definition of shadow mask in English:
A perforated metal screen situated directly behind the phosphor screen in certain types of colour television tube, having a pattern of precisely located holes through which the electron beams pass so as to strike the correct dots on the phosphor screen.
- The faceplate portion has a screen to display an image, and the panel portion has a shadow mask installed therein.
- The convergence test measures how accurately the red/green/blue electron guns are firing at the shadow mask - in this test, white lines should appear if the convergence is correct.
- There are two basic cathode ray tube technologies: aperture grille and shadow mask.
Definition of shadow mask in:
- US English dictionary
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