Defective pixel

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Notion

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Science and technology

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What Wikipedia says

A defective pixel or a dead pixel is a pixel on a liquid crystal display (LCD) that is not functioning properly. The ISO standard ISO 13406-2 distinguishes between three different types of defective pixels, while hardware companies tend to have further distinguishing types.

Excerpt from the Wikipedia article “Defective pixel”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Selçuk Oral (drumex), CC BY-SA 3.0, via Wikimedia Commons.