Shadow mask crt display
The shadow mask is one of the two technologies used in the manufacture of cathoderay tube (CRT) televisions and computer monitors which produce clear, focused color images. The other approach is the aperture grille, better known by its trade name, Trinitron. All early color televisions and the majority of CRT computer monitors used shadow mask technology.May 18, 2016 Anyhow keep in mind TVs don't have a shadow mask with round dots as pictured (at least, I've never seen one). They always use slot masks which have a striped layout like trinitrons, but without the actual brightness of a trinitron. Also tend to be very prone to blooming where the mask heats up and distorts the colours. shadow mask crt display
In Shadow Mask CRT tiny holes in a metal plate separate the colored phosphors in the layer behind the front glass of the screen. The holes are placed in a manner ensuring that electrons from each of the tube's three cathode guns reach only the appropriatelycolored phosphors on the display.