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What is a dead pixel?

Updated: 12/14/2022
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15y ago

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A "dead" pixel is a pixel on an LCD monitor that refuse to light up. This can be caused by physical damage or defects during the manufacturing process. The usual way to test for this is to display a solid color screen, such as white or yellow, and look for any spots that show up on the monitor. Sometimes these "dead" pixels can be coaxed to work again by gently rubbing them with a pencil eraser. You must be careful not to damage nearby pixels, however.

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