How often OLED displays need pixel cleaning (and what happens if you don't)

OLED technology is one of the more popular technologies being implemented in modern TVs, a fan favorite because of the ...
Ars Technica

Can I fix a stuck pixel on my LCD TV?

I bought a new LCD TV today. When the screen is black, I can see one bright white pixel right in the centre. I ran a "dead pixel scanner" program which cycles through various colours, and the pixel ...