Fixing dead pixels

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?
 
G

Gargravarr

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?

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**
 
O

old jon

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?
Sadly, when it`s gone, it`s gone.
bw..OJ
 
M

Mxsmanic

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?

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.
 
D

Don Taylor

Hardware defects cannot be fixed with software.

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")
 
M

Marc

Mxsmanic said:
Hardware defects cannot be fixed with software.

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
 
M

Mxsmanic

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

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.
 
M

Mxsmanic

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.

And hot pixels?
 
T

Tom Lake

A pixel on my LCD monitor is dead or faulty. It shows up as blue when
Sadly, when it`s gone, it`s gone.

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
 
M

Mxsmanic

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

And if the pixel is bright?
 
T

Tom Lake

Mxsmanic said:
And if the pixel is bright?

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
 
M

Mxsmanic

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.

How does rapid cycling of the signal do this?
 
D

David Maynard

Mxsmanic said:
Tom Lake writes:




How does rapid cycling of the signal do this?

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.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top