Tag Archives: shadow mask

S3 how a TV works – part 3

The site I have been using throughout the television section of the course is here.

The shadow mask makes sure that electrons fired from the filament responsible for each colour of sub-pixel do not hit the wrong phosphor dots, e.g. electrons sent by the “green” gun do not reach the phosphor dots that glow red or blue. ┬áThis animation shows how the shadow mask works.