Fixing dead pixels

  • Thread starter Thread starter Tan
  • Start date Start date
T

Tan

A pixel on my LCD monitor is dead or faulty. It shows up as blue when
there's a dark background. Is there anyway it could be fixed?
 
Tan said:
A pixel on my LCD monitor is dead or faulty. It shows up as blue when
there's a dark background. Is there anyway it could be fixed?
Click to expand...

I really don't know, but for what it's worth, I had a similar
problem except it was multiple pixels. Turned out to be
graphics memory problems.

--


Gargravarr
_________________________________________________

"One of the major problems of time travel is... one of grammer."

**The Restaurant at the End of the Universe**
 
Tan said:
A pixel on my LCD monitor is dead or faulty. It shows up as blue when
there's a dark background. Is there anyway it could be fixed?
Click to expand...
Sadly, when it`s gone, it`s gone.
bw..OJ
 
Tan said:
A pixel on my LCD monitor is dead or faulty. It shows up as blue when
there's a dark background. Is there anyway it could be fixed?
Click to expand...

On monitors with flexible front plates, you can try gently massaging
the hot pixel. I did this on one inexpensive LCD monitor and it
worked, and the hot pixel never came back.

However, there's a significant risk of making the problem worse, so
it's up to you whether you wish to try it or not.

LCD manufacturers are still too incompetent and irresponsible to
guarantee their panels against dead or hot pixels, and many stores are
even worse. It's the luck of the draw.
 
Hardware defects cannot be fixed with software.
Click to expand...

Dropped bits and poor connections can be fixed with error correction
and retries.

Marginal disks can be covered up with error correction and retries.

Ethernet design results in packet collisions and corrupted packets,
constantly. All that is "fixed" with layer after layer of software.

But, back to the subject of "dead" pixels, I have one glaring bright
greek pixel just a bit off center. It doesn't care what is on the
screen. I've been thinking that there might be a "hardware" solution.
If I could find the right marking pen or grease pencil, that would not
dissolve the soft plastic face but which would be mostly opaque and
would result in roughly a single dark pixel rather than glaring green.

I would think that some company out there would have come up with
this idea, but I can't find it. Anyone have any experience with this?

thanks
(And personally, I think that software covering up hardware problems
is a BAD idea, I'd love to park a little icon on the screen that would
change colors to let me know to peek at a message and discover what
kind of error just happened and was "fixed")
 
Mxsmanic said:
Hardware defects cannot be fixed with software.
Click to expand...

Those programs stress the pixels by going from color to color, and some
sleeping pixels will go on. Things like that have made a lot of PSP
owners very happy.

Marc
 
Don said:
Dropped bits and poor connections can be fixed with error correction
and retries.
Click to expand...

A bad pixel is not a case of a dropped bit or a poor connection.

Dropped bits and poor connections are not "fixed," they are "ignored."
By including redundancy in the communication, one can increase the
chance that all the essential information gets through even in the
event of an isolated error. If the information lost is not
redundantly represented elsewhere, it is lost for good. So nothing is
actually fixed by software.
 
Marc said:
Those programs stress the pixels by going from color to color, and some
sleeping pixels will go on. Things like that have made a lot of PSP
owners very happy.
Click to expand...

And hot pixels?
 
A pixel on my LCD monitor is dead or faulty. It shows up as blue when
Sadly, when it`s gone, it`s gone.
Click to expand...

Not necessarily. Many PSPs have been fixed with a software
stress program. As long as the pixel isn't black, there's hope.

Tom Lake
 
Mxsmanic said:
And if the pixel is bright?
Click to expand...

Then reverse the polarity and fire a stream of hydrogen ions out
the Bussard collectors! Channel all power through the main
deflector dish! Get an old sewing machine. Make it sew!
Paint your car and wait until the paint is tachyon the surface!
Fire phasers atom! Puns like these are just one of my little quarks.

Ahem....anyway, if the pixel is stuck on one color, cycling the
signal to it very rapidly can cause it to work properly.

Tom Lake
 
Tom said:
Ahem....anyway, if the pixel is stuck on one color, cycling the
signal to it very rapidly can cause it to work properly.
Click to expand...

How does rapid cycling of the signal do this?
 
Mxsmanic said:
Tom Lake writes:




How does rapid cycling of the signal do this?
Click to expand...

I can't say as I know for sure but I can speculate, imagine, theorize,
there's a chance it might help in some limited circumstances. Sort of the
electronic/molecular twist version of banging a stuck window till it breaks
loose, or breaks entirely ;)

Google turns up a number of people who claim they've successfully fixed
stuck pixels, not dead ones. Don't know about hot pixels.
 
Back
Top