LCD/TFT - Stuck Pixels

Are Stuck Pixels supposed to be common or something? Just had my 3rd one in the 2 months I've owned this otherwise-great Samsung SyncMaster 730B.

I mean sure it's nothing a little pressure can fix, just curious is all. Worried that this may lead to actual dead pixels in the near future.

No idea. I'd assume not, since within the.. oh.. I guess half a year I've had my L90D+ I've not seen a single dead pixel. However, the first L90D+ I had to return since a column had malfunctioned and caused a gigantic white vertical line to appear on the screen. Thankfully, Hyundai's support is great and they replaced it quickly and with no charge.

Might want to check your warranty and see if it qualifies as a malfunction.

production technologies (and the usable yield) keep improving, but it's still fairly common to have one or more stuck or dead pixels, unfortunately.

my no-name 17" has one pixel that's permanently stuck to red, no matter what I do. Every couple of weeks another pixels gets stuck on green, but it goes away as soon as I tap on it.

For what it's worth, I've installed a few dozen Dell Ultrasharp 19" screens over the past couple of months, and haven't seen a single dead or stuck pixel on any of those.

Always good advice, but don't get your hopes up -- the majority of manufacturers won't consider a unit 'faulty' (and therefor eligible for a warranty replacement) unless you either have 8 or more dead/stuck pixels total, or 4 or more dead neighboring pixels.

Apple insist that 10 dead pixels are perfectly fine. I think it's shocking, i've had two screens at work with a single dead pixel (both green) where rubbing doesn't fix them - and i find both are HUGELY annoying.

I paid for a monitor that could display whats on my screen, I want to see what's there - not what the screen suggests should be there.

You still can't beat a good CRT.

CRT's pwn -- until they release Plasma based monitors.

Almost makes you want to build one at a department store with a no-questions-asked return policy rather than a 'real' computer store... But of course those dont sell Apple equipment in the first place.



Sure you can -- with a good LCD. The catch is that you take a bigger chance getting a not-so-good one than when you buy a CRT.

A good LCD will pee all over a good CRT. It may amaze some people to realise that the market's moved on and yes, there are amazing LCDS now.

You can get manufacturers with a zero dead pixel policy. You can return the monitor and keep swapping it till you get one without dead pixels. Dead pixels are more common on cheaper LCDS than expensive ones.

This is because the panels are graded at the panel manufacturers, for example Optronics, and they sort them into A, B and C.

A has no dead pixels, B has minor flaws and C has a few dead pixels.

Then you might get the same quality panel in an ACER as you would in a viewsonic, however the ACER one which retails considerably less will have a couple of dead pixels. That is how the industry works and you get what you pay for.

That is not to say you don't get the odd dead pixel on an expensive panel, it means that the liklihood of a dead pixel occuring is a lot less.

Regardless I changed my monitor instantly when one of them had a dead pixel. You should too, and persevere, if for your own health's sake. CRT is a proven health hazard, LCD isn't.

My HP LCD will let you return it if you have over 3 dead pixels.

Try this out once: Put on some magnifying glasses and all of a sudden you will notice just how many pixels are off-color. It's a LOT.

I hope you're right One Eyed Jack. A couple of weeks ago I upgraded to a 37" Flatron LCD and haven't had any dead/stuck pixel stuff happen yet. Great monitor, 8ms refresh, 1600*1200 etc...but these pixel horror stories make me worry a bit. The warranty is 3 year and states 8 or more dead pixels before replacement. Pretty pathetic considering I paid $4000AUD for it.

You can try to fix those pixels with UDPixel :

http://udpix.free.fr/

there is 15% chance of success :)

Thanks for that link -- worth a shot, although I doubt that it will fix my red pixel. At least it's only visible when you're in a dark screen (but can be pretty distracting when you watch a DVD or something)

I can certainly vouch for that, just used Photoshop for the first time on this monitor yesterday (havent been artistically active until recently), and my god the display is freaking gorgeous compared to when I used my 15" CRT when colouring the picture...., such a damn clean & vibrant display.....

If you live in the UK, and buy an LCD in the UK, you are entitled to a replacement, or refund, if there are any number of dead pixels. That is your right as a consumer. You only wave this right if you buy a monitor that is 'sold as seen'. Manufacturers and shops will always try to fob you off with all sorts of 'company policies', but the fact of the matter is it's your right as a consumer. Threaten them with the small claims court and watch the manager fold instantly. I once asked a stubbern manager to show me this so called company policy. She read her manual for a few moments then appolagised and gave me a refund.

Heh, TFT's cant actually display the full range of colour, so they tend to dither- You'll notice noise on the display and with magnifying glasses, you'll notice the colour-oddages a little more :)

try this gen, http://www.theslurps.com/ :P

Oddball: Don't think thats correct.
It depends under which Class they are sold (the screen classes are globally standardized). If you buy a Class I screen, then ok, no dead pixels allowed. Class II screens have a small range of allowed dead pixels / brightness locked pixels until you are entitled to a replacement.

Class I / II screens are normally of a quite high quality, not many dead pixels allowed until you can get a free replacement.

Class III / IV are the problem, as they allow many dead pixels or brightness locked pixels.

You always need to check this class before buying, especially super discount shops tend to only sell class III so they simply can look cheaper than the others. (while they aren't in fact)

Get your facts right - you are talking about TN panels. There are many different panel technologies.


For once, Dreamora is correct here with the grading. The same panel manufacturer will grade the panel before selling it to the manufacturer who does the case and circuitry (ie... acer or viewsonic)

dead pixels... what dat... i aint never seen none of those anywhere on either my Sony or my NEC...

and i've seen plenty of stuff in my lifetime... bigfoot, nessy, ufos... but no dead pixels...

--Mike

You are correct- I couldn't remember which one of the few formats. TN is however a type of TFT screen, right?

No the UK law is quite clear on the issue. Unless the product is advertised as faulty you are entitled to a refund/repair. Learn your consumer rights, because trust me most store managers/owners don't know them. http://www.consumerdirect.gov.uk/

I got cought out by this one, but it is correct- One dead pixel renders a product faulty.

because I got cought by this, I have a wonderful 19" acer, with a dead pixel right on my play-bar in fruityloops. Looks like somethings always highlighted.....