Shadow on Computer Monitor: Causes, Solutions, and Prevention
COMPUTING
17 min read
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Shadow on Computer Monitor: Causes, Solutions, and Prevention

August 24, 2026
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Seeing a shadow on computer monitor can be frustrating, especially when a dark patch, blurry outline, or duplicate image suddenly appears on the screen. The good news is that not every shadow means your monitor is permanently damaged. It may be caused by ghosting, image retention, an incorrect refresh rate,

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