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If your LCD screen has a stuck or dead pixel , it's usually malfunctioning because the liquid in the liquid crystal display (TFT LCD) has not covered the whole screen. This can often be fixed.

Steps

   1. Try a software solution (links at the bottom of the page). This method rapidly turns on and off pixels in an attempt to re-energise stuck pixels. If this fails, complete the following steps.
   2. Turn off your computer's monitor.
   3. Get yourself a damp cloth, so that you don't scratch your screen.
   4. Apply pressure to the area where the stuck pixel is. Do not put pressure anywhere else, as this may make more stuck pixels.
   5. While applying pressure, turn on your computer and screen.
   6. Remove pressure and the stuck pixel should be gone. This works as the liquid in the liquid crystal has not spread into each little pixel. This liquid is used with the backlight on your monitor, allowing different amounts of light through, which creates the different colours.