"Keith Chandler" wrote in message
news:Yg5Bd.637759$%k.195260@pd7tw2no...
What are the extra pixels on the border (sides) of the picture tubes on
color TVs for (alignment?). The Sony TVs don't have these (because of the
Trinitron one-gun tube?)

Thanks,
Keith



Probably just extra phosphor material. The Trinitron tube has the phosphors
applied in a different way, vertical stripes rather than a matrix of
separate cells. The "one-gun" thing is just marketing hype, a Trinitron has
3 guns just like any other color TV tube.