Define the term shadow masking
Define the term shadow masking?
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In raster scan display devices this kind of technique is used. Shadow masking supplies to a great level wider range of colours estimates to a beam penetration process. At all pixel location a shadow Mask CRT has 3 phosphor colour dots. First phosphor dot emits red light then second one emits green light, last one emits blue light. 3 electron guns one for every colour dot, this type of CRT also has 3 electron guns one for every colour dot. Just behind phosphor coated screen, shadow mask grid is installed. The 3 electron beams that are deflected as well as focused a group on shadow mask, which contain a sequence of extremely fine holes aligned through phosphor dot patterns. As 2 beams bypass throughout a hole in shadow mask, they activate a dot triangle, which emerges as a small colour spot on screen. Colours can be obtained differently by altering the strength levels. More than 17 million different colours can be obtained in a full colour system.
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