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Why the white or black spot on LCD Display

Dead and Stuck Pixels
Pixel defects for an LCD monitor are defined as one of two types: dead or stuck. Technically, both types of pixel defects are stuck pixels but it really deals with the electrical currents and the state of each pixel or sub-pixel.
A dead pixel is defined as a pixel or set of sub-pixels that has failed and is permanently in the off position. This condition means that the pixel will not let any light through. This can be observed as a dark or black spot on a brightly colored or white background.
A stuck pixel is defined as a pixel or sub-pixel that has failed and is permanently in the on position. This can be either with a single or multiple sub-pixels for a given pixel and is best observed on a dark or black background. A white pixel means all three sub-pixels have failed while a green, red or blue pixel means one of the sub-pixels has failed.
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how can you fix dead pixel?


FIXING DEAD PIXELS These WEB site gives instruction on removing dead pixels, but there is no guarantee it will work except replacing the LCD screen.
http://www.makeuseof.com/tag/best-software-solutions-to-fix-a-stuck-pixel-on-your-lcd-monitor/
http://komku.blogspot.com.au/2008/03/dead-pixel-on-your-laptop-screen-how-to.html

Nov 27, 2012 | Computers & Internet

1 Answer

I have a red dot on the screen. I tink its a dead pixel? Can this be repaired?


Hi!
There are 2 ways you can try to fix dead pixel: Try online tool like http://www.jscreenfix.com/basic.php
OR
Try this quick guide to fix dead pixels
  1. Turn off your monitor.
  2. Get yourself a damp cloth, so that you won't scratch the screen.
  3. Apply pressure to the area where the stuck pixel is. Try not to put pressure anywhere else, as this may trigger the creation of more stuck pixels.
  4. While applying pressure, turn on your computer and screen.
  5. Remove pressure and the stuck pixel should be gone.
If none of these works, than you can't do anything with it.
Hope it helps

Jul 12, 2011 | HP w1907 LCD Monitor

1 Answer

My brand new LG 37' Led/Lcd t.v. had four very light white spots that you can see in the background what causes this?


Hello
Dead and Stuck Pixels
Pixel defects for an LCD monitor are defined as one of two types: dead or stuck. Technically, both types of pixel defects are stuck pixels but it really deals with the electrical currents and the state of each pixel or sub-pixel.
A dead pixel is defined as a pixel or set of sub-pixels that has failed and is permanently in the off position. This condition means that the pixel will not let any light through. This can be observed as a dark or black spot on a brightly colored or white background.
A stuck pixel is defined as a pixel or sub-pixel that has failed and is permanently in the on position. This can be either with a single or multiple sub-pixels for a given pixel and is best observed on a dark or black background. A white pixel means all three sub-pixels have failed while a green, red or blue pixel means one of the sub-pixels has failed.
Hope this helps, if so do rate the solution

Jan 16, 2011 | LG 37LC7D 37 in. LCD HDTV

2 Answers

Black spots appeared on 17" LCD Monitor-SyncMaster740N


you might have what you call "dead pixels" or a "stuck pixel" try a simple test like this one now it is not the most creative one, but it does help to see if that is the case. u might be able to Fix a STUCK pixel, but unfortunately you can not fix a "DEAD pixel" simply because it is DEAD.
try this website for simple fix instructions.
if is dead pixel what you have, if u can live with it, great, if not , it might be a good reason to get yourself an another monitor.

Good luck

Jun 17, 2009 | Samsung SyncMaster 740N 17" LCD Monitor

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