This is a monitor with dead pixels. It's a defect your new monitor can have out of the box,
but there's absolutely nothing you can do about it.
True, a lot of places will let you return any purchase within 30 days or so, but after that,
it can be very hard to get a monitor with dead pixels fixed,
even if it's under warranty. I'm not saying that whoever made your monitor
won't honor the warranty if, say, it won't turn on or the backlight goes out,
but why do display manufacturers just give their customers the cold shoulder
if some of the pixels on their screen, you know, the thing you're looking directly at,
straight up don't work. Let's start out by talking about what a dead pixel is.
On a typical LCD display, the transistors that control each pixel
can get stuck in one position or another permanently,
meaning the liquid crystals will be turned in such a way that no light can pass through,
rendering that pixel dark or off. On an OLED display, you'll instead have a pixel
or individual color sub-pixel completely burnt out,
but the result is the same, an unsightly dark spot that can be noticeable
against a light-colored background. Pixels can also die by being permanently in an on-state,
often called a bright pixel defect, causing a distracting bright spot,
especially noticeable during dark scenes. So we've established that permanently dark
or bright pixels can be very distracting, but why do they end up in the finished product
that you just bought? Why?
I mean, think about how many CPU cores are defective when they roll off the assembly line.
Those cores are just disabled and the chip is sold as a model with fewer cores.
With displays, though, the dead pixels remain a part of the product experience.
There's nowhere to hide them, but eliminating the problem is non-trivial.
That's because a standard 1080p display has over two million individual pixels,
and if you have a 4K screen, it's well over eight million.
When you're manufacturing that many tiny screen elements,
defects are highly likely. If a panel had to be perfect,
there'd be significant amounts of wasted product. Combine that with the high cost of shipping
and replacing defective panels when a customer wants an exchange,
and you arrive where we are today. The display industry has actually settled
on what it considers a normal amount of dark or bright pixel defects that one panel can have
before it's considered bad. They even ratified these numbers in a document.
There's actually an ISO standard that many display manufacturers use as a guideline
for determining how many pixels need to be defective on a display panel before they give you a replacement.
The ISO divides electronic displays into several classes
depending on how critical it is for them to be accurate. Most consumer monitors out there
are considered class two by the manufacturer, meaning pixel faults matter,
but it isn't crucial for the panel to be perfect.
In many cases, even more professional grade screens, such as the ASUS ProArt series,
use the class two rules as a baseline, even if the panel itself was originally manufactured
to be higher grades, such as class zero or one. Class zero, sounds like an anime.
And for class two screens, a panel is considered defective if it has more than two dead or bright whole pixels
or more than five faulty sub-pixels, the small red, blue, or green dots
that make up a full pixel. Note though that the ISO standard is not a hard
and fast rule that display manufacturers have to abide by
in order to sell displays in your region. While some companies cite it,
others seem to barely know it exists and many deviate from it in one direction or another.
Some will be super cool and replace your screen if there's just a single defect,
but it's more common to need to have between three and 12 total faults.
And sometimes they even have to be in a cluster on the same part of the screen.
This can be especially annoying if you have a high end display like an OLED display.
Just because you paid all that extra money for an OLED doesn't necessarily mean that the manufacturer
will give you a more lenient dead pixel policy. But if the problematic pixel is suffering
from a bright defect, you might have a couple of alternative options.
Because an individual bright pixel is typically more noticeable than a dark one,
some manufacturers will have a lower replacement threshold,
sometimes as low as just one bright pixel. Other times, especially on OLED screens,
bright pixels aren't permanent, but can be unstuck with free utilities
that quickly cycle the offending part of your display through many different colors.
Bottom line, check that dead pixel policy carefully
before throwing down tons of cash on a pricey new display.
Or just sit back far enough to where you won't notice the imperfections.
That's not a bad philosophy for life actually. It's a, I support it.
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