Do you have any stuck pixels (not dead pixel which does not display at all, but a pixel which does not display the correct color) on your LCD? Look no further, here is a good Java program called JScreenFix to the rescue:
A stuck pixel is a point on a screen that does not display the correct colour. Stuck pixels are fairly common on high resolution LCD screens. Stuck pixels sometimes start working again with time unless they appear black on a white background, these are known as dead pixels.
How do I check for stuck pixels?
JScreenFix will help fix stuck pixels on LCD screens. Most stuck pixels are fully repaired within 20 minutes. Some users have reported that JScreenFix can even fix dead pixels!
Unlike other solutions, JScreenFix works on each colour cell individually in an un-coordinated fashion. This is a more effective method to repair stuck pixels and is less stressful on the screen’s power circuitry. The technique is also less likely to cause photosensitive epilepsy, a common problem when playing traditional pixel fixing videos.