Dead Pixel Tester

Product: Dead Pixel Tester v3.0
Company: dps
Website: www.dps.uk.com
Type: Free
Requirements: Windows XP/Vista/7

TFT screens have thousands of pixels, on a 1024x768 monitor, there are three cells for each pixel - one each for red, green, and blue - which amounts to nearly 2.4 million cells (1024x768x 3 = 2,359,296). There's only a slim chance that all of these will be perfect; more likely, some will be stuck on (creating a "bright" defect) or dead (resulting in a "dark" defect). DPT was written to help check screens by cycling through the three primary colours used (red,green,blue) and all on (white) and all off (black).