Samsung is really letting me down.
Head to 'http://www.jscreenfix.com/basic.php'
Scroll down and launch the app.
Maximize the page or move it so that the static like effect is over the
problem pixels -- walk away for 10 minutes or so to avoid a headache --
if you're lucky and the pixel's are not dead, but stuck, than the
problem is resolved.
Sometimes it takes longer than 10 minutes, and or soft pressure on the
problem pixels. I'd read more about the pressure tactic before you use,
you can here:
On that link at the bottom there's several other apps like Jscreenfix
that have helped me in the past, and I would recommend.
More about the app I linked / Dead/Stuck pixels.
Hopefully you'll be able to repair those pixels! Good luck!