Stuck pixel question

JerzyBulovski

Hi,

I purchased a monitor earlier in the year which soon developed a fault where the colour black was replaced with a different colour.

I contacted the manufacturer and they OSW replaced it with another unit but that was a refurbished unit and had a stuck pixel out of the box plus another stuck pixel that appeared after some amount of time.

Knowing the hassle you get with stuck pixels and manufacturers with EU regulations and whatnot (a friend had a lot of trouble in this regard) I told them the unit had a different intermittent fault so they replaced it again.

After being on for a long while, this replacement "non new" unit has a couple of stuck pixels, too.

What are my rights, effectively? I think it is a shambles that you can buy something brand new then get palmed off with a repaired or refurbished unit not once, but twice if you experience a problem and then manufacturers can hide behind some regulations.

In my view, it isn't fit for purpose...

Thanks
J

bris

There is a guidline on whats acceptable when it comes to dead or stuck pixels, two is within the guidlines. Any remedy would be goodwill or under their own pixels policy, have a google and say see what the policy is for their brand, if they have a zere dead pixel policy (some do) then get it replaced again. if not then it's goodwill if they replace it again or not.

Darksun

You bought a monitor complying to a specific specification, does the monitor meet that specification?

If you want a monitor guaranteed to have no dead/stuck pictures, then you pay for a monitor to that specification from a supplier who offers that guarantee.

Jakg

Unless you bought direct, your rights with the manufacturers are non-existant.

nearlyrich

There is an ISO standard for what's acceptable when it comes to pixels not performing as expected. It depends on resolution how many are acceptable..although one bright red dot can be quite distracting.

Acceptable pixel anomalies
Resolution Bright or Dark
1024x768 4
1280x1024 7
1600x1200 10
2048x1536 16

Zeitgeist

Sometimes you can coax a pixel back to life. I had a monitor which had a hot pixel, where one pixel had the red element always on, so white and red was OK but a dark background always showed the red dot. After a few attempts with these instructions I managed to get it to turn off.

This is all at your own risk but if you are careful you won't do any more damage and it may work for you too.

Darksun

nearlyrich wrote: »

There is an ISO standard for what's acceptable when it comes to pixels not performing as expected. It depends on resolution how many are acceptable..although one bright red dot can be quite distracting.

Acceptable pixel anomalies
Resolution Bright or Dark
1024x768 4
1280x1024 7
1600x1200 10
2048x1536 16

There are different divisions within the ISO standard, manufacturers can specify 'Fault Class 1' which means no defective pixels are acceptable, but you obviously pay a premium for this.

On the other end of the scale there's Fault Class 4 which can have very high numbers of defective pixels, but obviously these displays are dirt cheap (since they're usually the panels rejected by the manufacturer for other fault classes). These are usually used in industrial applications where the pixel faults don't matter a great deal.

It all depends on what fault class the OP originally paid for.

JerzyBulovski

Hi,

Thanks for the replies. I had tried to coax the pixels on the previous monitor and it didn't work and I'm not sure how it will work on this one since the pixels only 'stick' when it's hot.

I can't find any mention of 'tolerated fault level' on the manufacturer's website (benq) but, in the troubleshooting section of the manual, it does say that 'stuck pixels may be a consequence of the technology.'

I'd like to imagine that the more you pay, the less chance of this there is but a friend of mine paid a lot of money (relatively) for a Panasonic 'photographer-class' monitor and ended up with the same trouble.

Thanks
J

Carrot007

'photographer-class'

This means nothing.

If you want a monitor that is free from all defects then you need a class 1 ISO 13406-2 monitor. These are available but you pay for it.

http://en.wikipedia.org/wiki/ISO_13406-2

Alternativly a lot of online suppliers will do a pixel check for a fee, but they only guarantee you for a short period as you still buying a ISO 13406-2 class 2 monitor.