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How to detect dead pixels

A dead pixel is a sign that the three sub-pixels behind it are permanently off. This gives you a black only colour. Dead pixels result from manufacturing issues but they can also be caused by a lack of power to the pixel. We’ll tell you how to detect dead pixels and how to get rid of them without replacing your display.A dead pixel is a sign that the three sub-pixels behind it are permanently off. This gives you a black only colour. Dead pixels result from manufacturing issues but they can also be caused by a lack of power to the pixel. We’ll tell you how to detect dead pixels and how to get rid of them without replacing your display.
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How to test for a dead pixel

To test if your screen has any dead pixels go to a site like checkpixels.com. Then put your web browser into full screen mode so you can cover the whole screen (you can do this with the F11 key). Now press Alt + Right Arrow key to go to the next background page. Use Alt + Left Arrow to go back if necessary. You’ll see individual pages of bright colours which will help you pinpoint any pixel issues. If the test completes without you noticing anything, try again. Those dead pixels you’ve been noticing when you work, haven’t gone away. You’re just not seeing them right away.

Correcting dead pixels

When you’ve detected dead pixels you can correct them by playing them through a program. Check Youtube.com as there’s a wide selection of videos that basically display flashing coloured pages. These pages flicker so much that anyone who’s photosensitive should stay away. In fact, no user should watch the screen while one of these videos plays because they can take hours to complete and the effect on your eyes can be very damaging. Thankfully the flashing coloured screens displayed on one of these videos actually repairs stuck pixels and it can be used on all manner of devices including iPhone, iPad and tablets.

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