its also white for a dead pixel.
For stuck, it would be red, blue, or green.
a dead pixel is a dead pixel, theres no way to bring it back. I think thats one con of the LCD.
EDIT - if its a stuck pixel, you would have to get a video that flashes Red, Blue, and Green.
like this video
find it on the net, and put it on for a couple hours or so. It depends on the pixel, sometimes it will take a minute, and sometimes it could take forever.