Red pixels on the screen of my laptop

I have a little problem on the screen of my laptop: the black pixels supposed to be displayed in red, this is not very serious but very unpleasant. It's already happened once, but the problem was solved in just 24 hours, but this time nothing changes.

I tried to go into the control panel and everything, but I found nothing.

Can some one help me ?

Thanks

You can try UndeadPixel for example to try to revive your defective pixels, but can not guarantee that it works every time.

I have also tried, but without result. I am beginning to think I'm gonna have to take him into service.

If you have the guarantee 0 defective pixels and is still ongoing seems the most sensible.