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 |  موضوع: How to Fix a Stuck Pixel on Your LCD Monitor الثلاثاء أغسطس 23, 2011 2:16 pm | |
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A
perfect scratchless LCD screen, so clean you could eat of it... wait a
minute! What is that bright spot in the middle that remains frozen on
the screen? That bright spot is a stuck pixel and it is a commonly noted
problem amongst LCD monitors. To learn how to get that annoying spot
off your LCD screen, scroll below.
The LCD monitor is a
breakthrough in display technology, as its display has a crystal-clear
sharp quality with vibrant colors and graphics. Plus LCD monitors have a
very slick-and-slim profile, that allows for portability and
convenience as opposed to heavyweight CRT monitors. But a common problem
faced with most LCD monitors is pixel defects and one such defect is a
stuck pixel. Each point on an image is called a pixel, so to display an
image, each pixel must turn a particular color and must change colors to
display different images. A stuck pixel does not change its color
according to the image being displayed. It will stay blue, green or red,
irrespective of the picture being displayed. This can occur only in
certain applications or the pixel can be stuck throughout. Some LCDs can
go for years without a stuck pixel showing up but yet some brand new
monitors can have stuck pixels in them after a few days of use. Stuck
pixels are not dead pixels, which permanently remain off and show up on
screen as a dark spot or dot. Cleaning the LCD monitor will not make
stuck pixels go away, so read on to learn how to fix a stuck pixel on an
LCD monitor.
Ways to Fix a Stuck Pixel on Your LCD Screen
Caution:
The following methods are not guaranteed solutions to fixing a stuck
pixel. Different models and brands of LCD monitors have different
internal fixings and ways of working, so results may vary. Sometimes the
method may work temporarily but once the screen is left off for
sometime, the pixel will once again "stick". This site does not
guarantee the effectiveness of any method, so follow any steps at your
own risk. It is recommended that if your LCD monitor is still under the
manufacturer's warranty, then please refer to their expertise prior to
trying any self-help methods.
The Pressure Way
Turn off the monitor.
Dampen a washcloth slightly, do not make it very wet and fold it to
become a thick square. Do this, so you don't scratch the screen or
puncture it.
For a poking tool, use a pointy object with a
not-too-sharp end. Examples would be a dull pencil, PDS stylus or a pen
with blunt tip. A screwdriver is a good tool but the screw drive should
be a slot or a blunt end, not a torx or star screw drive, which are too
sharp.
Place the washcloth on the spot where the stuck pixel is.
And place the pointed end of your poking tool on the washcloth, to poke
the stuck pixel. Try to poke the exact spot of the stuck pixel and not
any other area.
Apply a moderate amount of pressure, do not poke or jab very hard. Keep pressing and turn your monitor on.
Stop pressing the screen and take out the washcloth, the stuck pixel
should be gone. An LCD screen has liquid crystal distributed to each
pixel. This method redistributes the crystal in the stuck pixel's area
and it moves around to recolor the stuck pixel.
The Tapping Way
This method involves keeping the LCD monitor on. Your computer
should be on as well. Open a black colored image file on your computer
or set the background wallpaper to it. This will highlight the stuck
pixel. A dark image will not do, only black will show the pixel. You can
also open the program Paint, fill an image with the color black and
keep the file open.
This time the poking tool should have a rounded blunt end, like a soft-tip marker with the cap on. A stylus will also do.
Use the rounded end of the tool to gently tap the stuck pixel. Start
out slow and gentle, when you tap, a small white glow will appear at
the point of tapping. This is the correct amount of pressure.
Keep tapping at this pressure, about 5-10 taps exact on the pixel should
be performed. Be careful you don't tap anywhere else, you could end up
causing another stuck pixel.
To see if the pixel is fixed, you
need a completely white background. So either open a text document or a
blank web page in full screen or change the background image to a white
image. If the pixel is not fixed, do not try the tapping method so soon.
Too much of such tapping on the monitor could damage it.
The Software Way
There
is always a handy software or program around to serve any need and a
stuck pixel on an LCD screen is no exception. Certain software, some
free and some paid, will rapidly adjust and flash various colors on the
screen in an attempt to "unstick" the stuck pixel. Do not keep running
the programs, if at first the pixel is not fixed, then wait for a while
and try a different program. Some programs need you to select the stuck
pixel, some will automatically detect the broken pixel or pixels. The
following are a few programs available online:
JscreenFix
DPT 2.20
UDPixel 2.1
PixelRepairer
LCD Scrub
Whatever
you do, do not open the monitor casing in an attempt to fix the pixel.
Fiddling with internal monitor parts to fix 1 or 2 pixels can damage the
monitor completely. Do not get water on the monitor. If left alone for
sometime, stuck pixels can become right, so sometimes leaving it alone
can resolve the problem | |
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