I bought a Panasonic Lumix DMC-TZ7 camera a few months back and recently noticed that it had developed a cluster of purple dots on its display. The dots are in the upper right quadrant of the display and can be seen in the image below (click to view full size image).

The weird thing is that the pixels do not seem to be stuck, they are only purple against a darker color. The dots are invisible when viewing a menu with a white or yellow background. I’ll have to take the camera for warranty service, but I was interested in hearing if anyone else has seen these types of dots and might know what causes them.