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Java app that displays a random animated pattern which may help "unstick" stuck pixels on some LCD computer monitors. A stuck pixel is a small dot on your screen which will not change from a particular color even though it should. Run the image applying slight pressure on the dot Video version: http://www.youtube.com/watch?v=laGabv9yO_4

Not really a tool : images to check dead pixels

With the test images on these pages, you can easily adjust the settings of your monitor to get the best possible picture quality. Additionally, there are a number of test images that can help you to judge the image quality of a monitor. You can check the images on this webpage or put them on a usb stick and try them in the computer store like I did when I created these test patterns. These test images are much more revealing regarding monitor shortcomings than ordinary photographs.