Dead pixels and nz consumer law

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gished

272 posts

Ultimate Geek

#249354 7-May-2019 16:45

Just in the process of my 5 yearly monitor upgrade and looking at most manufactures there no longer seems to be anyone offering a zero bright/zero dead pixel policy (aside from a few high end models from Dell and someone else).

From memory Samsung used to do this but they've now resorted to the standard >3 bright or >5 dead pixels, which to me seems somewhat unreasonable. Not that I image this would apply but it did cross my mind that nz consumer law should overrule this, as it could be argued that the panel isn't free from defect. In saying that I wouldn't hold my breath if it went to the DT... Thoughts? (or recommendations for 27" 2K monitors)

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mattwnz

18639 posts

Uber Geek

#2232361 7-May-2019 17:17

I think the manufacturing of LCD has improved, and costs of monitors have come down, so it isn't as much of a problem. It used to be blamed on deficiencies in manufacturing due to it being a new technology. You used to have to pay the best part of $2000 15 odd years ago for an 18 inch LCD monitor, and pixel and sub pixel issues used to be a problem with some of them. As the cost has come down, the expectations are also a bit lower as well.

SpartanVXL

843 posts

Ultimate Geek

#2232383 7-May-2019 18:12

The reality is that as pixel density goes up the chances of having a doa pixel or sub pixel goes up as well.

It really depends on the model you get. I had a AOC Agon monitor that had a bright pixel guarantee, playtech had no issues replacing the panel with a new box as it had a single green pixel right in the middle of the screen.

As you say, you have to go with somebody who has a guarantee (Dell) as the majority of models out there can be B grade panels from Samsung or AUO and sold as varying models across brands. They put it in the fine print that there is a chance that it happens due to the way the manufacturing works.

mattwnz

18639 posts

Uber Geek

#2232385 7-May-2019 18:33

SpartanVXL: The reality is that as pixel density goes up the chances of having a doa pixel or sub pixel goes up as well.

As density goes up, the less visible a dead pixel is as well. Often it will just be a dead or stuck subpixel which are usually less noticable unless you are on a specific colour eg red, green or blue, rather than a full dead pixel.

CitizenErased

190 posts

Master Geek

#2232703 8-May-2019 10:20

You still get zero bright pixel guarantees if you're prepared to pay for it, e.g. Dell provide a "Premium Panel Exchange" warranty (zero bright pixels) on their P-series and UltraSharp monitors.