Symptoms
- Tiny black dot that never changes color
- Tiny dot stuck on red, green, or blue
- Spot visible mainly on plain white or black backgrounds
- Dot doesn't move when the image changes
Likely causes
- CommonManufacturing defect in the LCD panelA single transistor controlling that pixel failed to be fully on or off.
- CommonStuck subpixel from a manufacturing or shipping stressPressure during shipping or handling can leave a subpixel stuck rather than truly dead.
- PossiblePhysical damage to the panelA dot near a scratch or impact point is more likely permanent damage than a fixable stuck pixel.
What to do
- Display a pure white, then pure black, then red, green, and blue full-screen image to confirm the pixel's exact behavior (many free 'dead pixel test' web pages do this).
- If it's black on every color, it's a true dead pixel, which generally can't be revived.
- If it shows one fixed color regardless of background, try gently massaging that exact spot with a soft microfiber cloth while the screen is off, using very light pressure.
- With the screen on a rapidly flashing color pattern (a 'pixel fixer' video or app), let it run for 10–20 minutes to try to jolt the subpixel back to normal.
- Avoid pressing hard or using anything sharp, since excess pressure can create more dead pixels or a permanent bruise on the panel.
- If the pixel remains after a few attempts, check your monitor's warranty for a 'dead pixel policy,' since many brands replace panels above a certain pixel count.
Tools and parts
- Soft microfiber cloth
When to call a pro
If the monitor is still under warranty and the dead pixel count meets the manufacturer's replacement threshold, contact them for a replacement rather than attempting DIY fixes.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.