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47244 Views 476 Replies Latest reply: Dec 10, 2007 10:43 PM by TallyHo
Currently Being ModeratedSep 8, 2007 2:46 PM (in response to Yukie)"I was defending the screen until I saw it, I've been using 160 angle Tn display (LG) for 1½ years now (was a cheap LCD when I bought it as well).
And everything looks fine on this so I thought, This is a TN, iMac 20" is a TN, and this one is almost 2 years old, OF COURSE the iMac's screen is better.
But the truth is, iMac screens is sooo much worse than my old one, how is this possible?"
Thanks for your post. Many have tried to act as if those who see them fading considerably from top to bottom are just seeing things, or need to calibrate it, or are viewing it from a bad angle. They refuse to believe it's not really as bad as it really is. Easier to believe all the people complaining are just idiots than that Apple put out a terrible product.
But in my last visit to Fry's the 20" there did not have the gradation problem and didn't look too bad, certainly no worse than the TN screens you can find all over town. So this was clearly a manufacturing problem that has been cleared up, although it's still hard to believe Apple would have such lousy Quality Control in place as to allow those first iMacs to ship out.
And there is still no way to tell if you are getting a good screen or a bad one without actually opening it and starting it up.
Which also means the glass in front is not the problem. I suspect Apple made it glossy so people would oooo and aaaaa and not notice how cheap the screen is. Might have worked too, if they hadn't sent out so many seriously flawed ones all around the world.iMac 2.16 Core 2 Cuo, Mac OS X (10.4.10), 3 GB ram
Currently Being ModeratedSep 12, 2007 5:51 PM (in response to Lunar1980)You might be able to take it back if you can show that a good number of 20" iMacs have the same problem. I had to send 2 back because of the 'gradient' problem. I finally solved the problem by buying a 24".
I believe that Apple should own up to this mistake and replace ALL 20" iMacs with this problem.20' iMac Core 2 Duo, Mac OS X (10.4.10)
Currently Being ModeratedSep 12, 2007 7:32 PM (in response to QGrayson)Since the 1091939 thread was deleted, I thought I'd follow up and say that I asked for a 24" as well when I called up Apple yesterday to return my second 20". I hope to receive it in 10 days if not sooner.2.16 Ghz MBP C2D 2GB RAM, 2.1 Ghz G5 iMac (iSight) 1GB RAM, Mac OS X (10.4.10)
Currently Being ModeratedSep 14, 2007 9:45 AM (in response to johnyq)Here's a great way to tell if your display has the issue
Open System Preferences
Click the colors tab
Select iMac in the menu and click calibrate
Select "2.2 Television Gamma" and click continue
On the next screen select "9300"
I'm at a straight viewing angle to the screen, and the menubar appears blue. however the dock simply looks a bit darker than normal.
I just called AppleCare, and after I answered it's spoken response questions, it stated it would transfer me to an iMac specialist and promptly hung up on me.eMac, PowerMac G4, RIP little buddy, Mac OS X (10.4.8), 1.25GHz, 512 MB of RAM, SuperDrive
Currently Being ModeratedSep 14, 2007 2:35 PM (in response to QGrayson)I wish it was a free upgrade. I'm paying the difference and upgrading to the 24". I just hope I don't have some of the 24" problems that others here are experiencing. I'll post back when I get it.2.16 Ghz MBP C2D 2GB RAM, 2.1 Ghz G5 iMac (iSight) 1GB RAM, Mac OS X (10.4.10)
Currently Being ModeratedSep 17, 2007 11:28 AM (in response to johnyq)I just bought the same 20" iMac. I too have the previous model. Side-by-side, the old one has a much better display. I will be exchanging it for the 24" model since I can't justify downgrading from my older model. I've read other message boards and this is a problem with their 20" display. I really just need and want the 20" but I may have to suck it up and pay for the 24". I tried calibrating it also, and that didn't help.iMac 20" - new model, Mac OS X (10.4.10)
Currently Being ModeratedSep 22, 2007 7:36 AM (in response to adolfop)I got my 24" iMac yesterday after returning two 20" iMacs, and I can say, like many others have already, that it is a a lot more uniform in brightness. I'll be keeping this one.2.16 Ghz MBP C2D 2GB RAM, 2.1 Ghz G5 iMac (iSight) 1GB RAM, Mac OS X (10.4.10)
Currently Being ModeratedSep 22, 2007 7:56 AM (in response to johnyq)Thanks to all who have posted and shared their experience.
I too have noticed this problem. I've looked at 20" and 24" side by side in Bristol with a solid colour full screen and the 20" display definitely has a luminosity gradient - darker at the top than the bottom.
I thought it was just me (the store staff swore they couldn't see a difference)
Looks like you have helped me make up my mind to fork out the extra for a 24" even though I really wanted the 20". I am a photography student and need a decent consistent display.
It hasn't been mentioned here but I have also had this problem on 2 MacBooks, a core duo which had other hardware issues too and the latest core 2 duo which apple gave me as a replacement. Both models have a luminosity gradient - darker at the top, lighter at the bottom. I have complained to Apple and received only denial - although various staff at Apple stores have agreed there was a gradient but told me that all MacBooks have the problem. I have looked at MacBooks in many different stores both in the UK and abroad and seen this problem on every one.
And now the bottom of the screen is starting to develop hotspots which are much brighter, so looks like this one will need repair or replacement too. I run my screen at various different gammas, depending on what I am doing and also use a hardware monitor calibrator.
Come on Apple. We are prepared to pay a premium for quality integrated hardware and software and you are really letting us down with poor quality control lately.MacBook 2.0 White 1Gb RAM, Mac OS X (10.4.10)
Currently Being ModeratedOct 2, 2007 8:58 AM (in response to johnyq)I see that I am not alone on this issue. So I was told that Apple equipped the 20" iMacs with the cheaper TN screens which exhibit this gradation/wash-out problem and NOT on the 24" models.
I REALLY wish they would've addressed this hardware difference on the technical specification details.20" iMac 2.4 Ghz Intel Core 2 Duo, Mac OS X (10.4.10)
Currently Being ModeratedOct 2, 2007 9:32 AM (in response to johnyq)Glad (or not glad I guess) to see I'm not alone. I just bought my first new mac, the iMac 20", in 5 years since my Powerbook 12". Looks like I picked the wrong time. I like the machine, but this screen issue is so painfully obvious. I'm actually really surprised that Apple, with its sales/stock/notoriety going through the roof that they wouldn't want to formally address this problem and nip in the bud before it becomes a PR nightmare. There is obviously something wrong here and the 20" are unsatisfactory...the screen issue is just that bad.iMac 20" (with the jacked up screen), Mac OS X (10.4.10)
Currently Being ModeratedOct 2, 2007 10:36 AM (in response to DexterC)
I see that I am not alone on this issue. So I was told that Apple equipped the 20" iMacs with the cheaper TN screens which exhibit this gradation/wash-out problem and NOT on the 24" models.
Be aware that the new 24" iMacs also have serious display uniformity issues -- almost certainly, a hardware defect. Although there's no "washed-out color" problem, many (most? all?) have very significant left-to-rightness brightness gradients, (i.e., max:min luminance ratios well over 2:1).
And BTW, the 20" iMac display's disgraceful performance IS NOT a normal characteristic of TN panel technology. There are hundreds of beautiful TN monitors on the market at very modest prices.
LoobyiMac 2.4 GHz / 24", Mac OS X (10.4.10), In the beginning was the command line....
Currently Being ModeratedOct 3, 2007 6:25 AM (in response to johnyq)I am around cheap TN displays all day and none of them have the gradient problem of
my new 20" iMac. Something is really out of whack with the back lighting, the bottom being much brighter than the top.Mac OS X (10.4.10)