Electronic Repairing: LCDs

How to Remove a Stuck pixel

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How to Remove a Stuck pixel 
 
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Sometimes LCD screens have a stuck(Always shows one color).This is because of transistor problem or unequal distribution of liquid in liquid crystals. 
 Dead pixel 
Stuck pixels are often incorrectly referred to as "dead pixels", which have a similar appearance. In a dead pixel, all three sub-pixels are permanently off, producing a pixel which is permanently black. 
 
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 Stuck pixel 
A stuck pixel is a dot on LCD screen that permanently shows one color no matter what picture your are viewing.Most common are Red, Green, or Blue colors but can also have a combination of these.Stuck pixel is a common problem occurring in LCDs. 
Actually a pixel in LCD screen is further composed of three sub-pixels Red, Green, Blue a stuck pixels is produced because of manufacturing fault when one or two of these sub-pixels are faulty and permanently shows only the third color or a combination of the other two. 
To locate a stuck pixel a dark color background should be used because its not easily visible in light background. 
 Removing a stuck pixel 
 
<ol>
<li>Turn on your LCD and display a dark background so that stuck pixel is easily visible.</li>
<li>Apply pressure onto the pixel using a cloth piece .</li>
<li>Be careful in the process so that you should not scratch the screen.</li>
<li>Carefully apply pressure on that specific location if you pressed the neighboring pixels you may cause more stuck pixels increasing the problem.</li>
<li>You may Turn on and off your LCD monitor few times during the process.</li>
<li>Continue this procedure until the spot is gone forever keep calm because sometimes it appears again.</li>
</ol>
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How to Remove a Stuck pixel

How to Remove a Stuck pixel Sometimes LCD screens have a stuck(Always shows one color).This is because of transistor problem or unequ...

Fixing a Dead Pixel

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Dead Pixel 
A Dead Pixel is that specific defective pixel on an LCD screen which permanently remains unlit.It occurs because of  transistor malfunctioning.Dead Pixels permanently remain black so can easily be located on a white screen.Unlike a Stuck Pixel(which can be red, green, blue or mixture of any two) a Dead Pixel is permanently black. 
 
 
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Fixing a Dead Pixel 
Usually a Dead Pixel can't be fixed.But sometimes pressure method can be beneficial.So try the following Procedure to remove a Dead Pixel. 
 
 
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<ol style="text-align: left;">
<li>Turn on your LCD and display a white background so that Dead Pixel is easily visible.</li>
<li>Apply pressure onto the pixel using a cloth piece .</li>
<li>Be careful in the process so that you should not scratch the screen.</li>
<li>Carefully apply pressure on that specific location.</li>
<li>You may Turn on and off your LCD monitor few times during the process.</li>
<li>Continue this procedure until the spot is gone forever keep calm because sometimes it appears again.</li>
</ol>
</div>

Fixing a Dead Pixel

Dead Pixel A Dead Pixel is that specific defective pixel on an LCD screen which permanently remains unlit.It occurs because of transistor...