Problem with 20 inch iMac screen – colours washed out
If you’ve got the all new 20 inch silver iMac, you may have noticed how beautiful the colours on that glossy screen are. You may have also noticed that they are more beautiful on the top of your screen than on the bottom.
It’s not only that colours are washed out as you go towards the bottom of the screen, they also change as you change your viewing angle. This makes the new iMac very much useless for any half-serious graphical designer. (see the video on the bottom of this page)
The reason for this is that Apple has used TN displays, which are the low end displays and are very cheap. 24 inch model comes with IPS displays, just like the old 20 and 24 inch white iMacs, and they are perfectly fine.
Take a look at the first picture below. Two Finder windows, none of them selected, positioned right at the top of the screen. The colour of the toolbars is identical. When I moved one window down to the bottom of the screen, the brushed metal toolbar became very light grey, almost white.
When I slice this picture and bring both toolbars next to each other, you can see the real difference.
A few iMac users claim to have limited success with fixing this by re-calibrating the screen, but that makes the problem only a little less obvious, it really doesn’t fix the issue.
You can also minimise the problem by tilting the screen backwards, but again – the issue is still there.
I came across the following post in Apple support forums…
As being a technician I opened my iMac (which is very easy) and found out that the connector of the bottom fluorescent light had come loose. After putting it into place and assembling the whole thing, the display looks better than ever. I really love this computer
… but I’m yet to find anyone else who is able to confirm that this could be the fix.
Another problem is the horizontal viewing angle, if you move your point of view slightly, the colours on the screen will change.
Here is an example, the Apple support forum page. This is the normal view. The page background is white, the post background alternates between white and light blue, and the menu bar on the right is grey.
If I move to the left, so that I look at the screen from a 30 degrees angle, the far side of the screen changes colours, so grey becomes light brown.
If I go to the other side, same angle – same colour inconsistency.
If this is not bad enough, just wait until you stand up, becasue if you look at your screen from the top (30-45 degrees) this is what you will reward your beautiful eyes with:
Please note that the colours from the normal viewing angle are:
Here is the screenshot of what’s actually there
So Apple – it’s your turn now. Are we going to see the recall or will it end up in some kind of class action? I guess we’re yet to find out.