dead pixel

[neuro]

I spotted a dead pixel color black on my screen, then about 2 months after I change my graphics card, the pixel death was still there.And now that the beginning of this week, I noticed that the pixel is returned to normal .....

My question? How is this possible?

[deoWo]

The dead or missing pixels do in any case the graphics card but just the screen. There are so many pixels on a screen nowadays that the likelihood of a contact to be failing are quite large.

Some displays are guaranteed 0 defective pixels, others have no guarantee therefore have to live with.

The difference between a dead pixel and defective?
A dead pixel is definitely dead what is described in one or more of the three alpha channels not responding.
A defective pixel can be revived by software that can be found on the net (I never had a result), their objective is to scan a maximum of colors in a minimum time (multicolor strobe type).

[neuro]

But what I find strange is just the fact that without using one of these programs "miracle" he revived it alone without speak voluntarily.

[Aikonik]

See this link for more help : Defective pixel on a flat screen