Dead Pixel Locator is a powerful application that helps you check the LCD monitor or plasma display for dead pixels.
Still, every manufacturer has a dead pixel policy, which you should read carefully. If you find any defective pixels on your new LCD monitor or plasma display during the warranty period, it may qualify for a replacement.
There are 3.9 million sub-pixels (red, green and blue) on a standard 1280x1024 resolution LCD monitor, and each of these is a microscopic transistor.
While the defective rate of pixels on LCD panels and plasma displays is very low, due to the large number of sub-pixels, manufacturers cannot guarantee 100% error-free panels at an affordable price.
To make things more difficult, it is not possible to test any pixels before full assembly of the panel, and fixing any pixels is not possible after assembly.
