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dead pixel Last modified: Tuesday, October 28, 2008

A pixel on an LCD monitor that remains unlit, or black, when it should be activated and displaying a color. Each pixel on an LCD screen is made from three separate subpixels—one red, one green and one blue—that when combined form the colors that the users see on the monitor. A dead pixel occurs when the transistor that activates the amount of light that shows through all three subpixels malfunctions and results in a permanently black pixel. Dead pixels are rare and largely go unnoticed by the user. See "All About Monitors: CRT Vs. LCD" in the Did You Know...? section of Webopedia. See also "LCD Versus Plasma: An introduction to flat screen television technologies" in Webopedia's Quick Reference section.

Webopedia's "Did You Know...?" Section Use this Webopedia knowledge section for an in-depth overview of specific technologies and occurrences in the areas of Computer Science, The Internet, and Computer Hardware and Software. Webopedia's Quick Reference Section Use this Webopedia reference section for information on common Internet and computer facts and occurrences.