Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

repost from a diff thread as seem this issue has similarity to this post:

Hello there, I have recently noticed that I see some horizontal lines showing up when chatting up in skype or facebook. Its only been 2 weeks since i got the n9. Dec 5th is the day I powered the N9 on.

Problem description:
Nokia N9 64gb - no mods.

Lines showing up on the N9 while chatting on FB or Skype.
The lines are showing horizontal. Upward direction while in landscape mode.
Lines have a green/pinkish tint to them.
Lines are very visible when the keyboard is out.

Testing:
The lines are specially visible when you are in landscape mode and viewing it form an angle. I have set up the brightness to its lowest and one can see it clearly. Max brightness Its hard to tell until you really look close. Also in portrait mode I can see that the left side of the screen is darker compared to the right side. This might be due to the keyboard layout when its in landscape mode. Further more the lines are very visible when the keyboard is out in landscape mode.

Is it something to do with the white background of the phone?
Tested it out with the clock on the N9 as it has also somewhat whitish bg on it. Cannot discern the lines.

Next testing area is the browser, default browser for the nokia n9 shows some lines in landscape mode. Portrait mode almost none.
This happens again in the lowest possible brightness setting. Max brightness still visible but you have to really look closely in portrait mode. Most visible when the keyboard is out.

Conclusion:
Testing confirms that in the lowest brightness setting the phone shows lines of green/pinkish tint while in white bg. Very visible in landscape mode especially when the keyboard is out.
Max brightness not so much visible.


Is there anyway to confirm this from other n9 users?

I cant take a photo of it atm as it is raining and gloomy here. (will update on this)

What can I do to fix this? Any advice is much appreciated.

~ This is the same issue that benny1967 and wierd0 posted, no black dots on the phone's physical screen though. Just the annoying lines when viewing webpages or chatting in skype and fb. ~

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Can anyone who has an N9 confirm that they do indeed DO NOT have the pink/green streak of lines mentioned in this thread? As I am about to return this beautiful product to my online retailer for a new one if its applicable.

Much love and thanks :D

I can confirm that the lines are definitely there on my N9 but they're hardly noticable. I guess all N9 show the lines to some degree.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I don't have the dark blotches mentioned earlier, but I do have very faint pinkish lines when scrolling against a white background in the web browser. Since it only occurs in landscape mode (how about portrait when viewed from the side?), might it be a product of the Pentile subpixel arrangement?

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Thank you for the replies, I guess it will be useless to return the product because of the lines in landscape mode since its penTile related. Portrait mode the lines are not so much visible, hardly noticeable until you look at it in a magnifying glass. The black dots are not on my phone either. I believe it is caused my the glue they used while manufacturing the screen. I do not think Nokia manufactures their own screens.

I wish I would have never read this thread as I started noticing them after it got described here lol.

Now my question is, does the lines bother you? Or should I say how are you able to live with it? This is my first penTile smartphone.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Again an update on my situation. Having complained, by email, to the store about the green/red lines and the color depth of the display I got a reply that basically said that they still weren't willing to refund me even with the added color depth complaint.

Since the email didn't include any details regarding how the store manager had gone about forming the conclusion that they didn't consider the color depth issue serious enough, I replied and asked whether he had asked Nokia about it and whether either Nokia or the store were still willing to admit that the display did not conform to the advertised specs. What I got back was basically a restatement of the earlier, "Sorry still no refund." email that didn't answer either of my questions.

I again got in touch with the consumer ombudsman who directly contacted Nokia. This morning she got back to me with the news that Nokia had stated that although they admit that the display does not match the promised specs they do not consider the issue to be bothersome enough for the user to warrant a refund. So it's basically the same story as with the green/red lines but now they at least admit that they are wrong instead of saying, "It's not a defect it a feature!"

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

If I'm seeing the same lines that you're seeing, I personally would not want to return my N9 (even if I could!).

However, I'm not at all bothered by the screen of my N9, as these lines are very faint, only occasional and have to be sought to be noticed. So if your phone's issue is bothering you, its possible we're seeing different things. Might be worth asking the store/manufacturer if a return would be possible, or trying out another N9 to see if the same issues are present.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

When you're free, can you please take some photos of how the lines look like? And under what conditions they appear, other than the brightness.

So far(have had the N9 for 1 month+), I only see the usual slight pink or blue tint when viewing at an angle, no lines of any sort or colour.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I just got another new N9 (Austrian Product Code) and it has a black dot (d=2.5mm), I can see it when it's completely dark.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I can't take a picture as the N9 is really my only semi-capable camera, sorry. However if you'd like to try and replicate what I'm seeing, I find it's worst when zoomed into headings on the Engadget home page.

As I can see, the lines appear in pink and green on pixel rows with elements on a light background. As they appear perpendicular to text in landscape, and parallel with text in portrait, I'd suggest this is definitely a quirk with the Pentile subpixel arrangement.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Does it look anything like the video I linked to before?
http://blip.tv/ossi1967/nokia-n9-display-issues-5657368

(The video makes it look more black and white when it's really more purple/green)

If so, I really doubt it's a matter of the pentile subpixel arrangement.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Do you feel that a display side expert will acknowledge the defects and so doing admit his or his team's mistake of certifying this screen in the first place?

I hope so, but I can't see how they will ever call these several issues defects.

If they do they may then have to recall all of the screens, while there is still a majority (?) of users out there that does accept the screen quality, like Nokia anticipated (floating icons, high brightness in sunny environment wow factor)

It is very hard to draw the line on which screen is legible for RMA and which not.

There for I think it is better to focus on one single undeniable defect and push it from there.

The movies look great on the N9: but black spots visible when watching dark scenes in movies movies? - very distracting.


Bottom line is that the implemented technology seems just too low end for a premium priced device like the n9.
And I am not saying that I would not be prepared to pay 1000 for a better screen, because I would.
The target group for this device has higher expectations from the display.
When dealing with display issues (human eyesight related issue) the risk is to have your screen replace endlessly for an worse copy.

Because I read Nokia is still calling the N8 purple effect normal depending on where and how you present your problem.

Anyway good luck and feel free to ask assistance.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

No black spots in the dark room on the camera app, but i def. have them pinkish lines that look like a UPC code. They only seem visible by eye or by taking an actual picture of the phone itself with a camera. I uploaded some screenshots from the ScreenshotMee app to my pc, & i couldn't see them at all. So it's def. a panel issue. Now debating what to do. I think i can deal with it. Should have a poll on this thread....

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Here's to hoping I'm not beating a dead horse.

Kinda off-topic, but I think the black spots are surely an AMOLED problem. People over at NeoGaf report somewhat reminiscent problems on Playstation Vita with black spots shown in the darkness:

http://i.imgur.com/dux7c.jpg

http://i.imgur.com/kdAhk.png

(PS Vita got an OLED screen)

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

This is exactly what happens to my screen but only on some backgrounds and text display. it was very strange the first time I saw it, but I guess its widely happening.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Please check my thread about green cast on my screen while viewing from an angle. I attached a comparison picture over here. My unit is older(geen cast), while the other unit is newer (normal but appears to be slightly pink/purple on the picture)

http://talk.maemo.org/showthread.php...75#post1143675

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Hi there!
This my first post here. I'm a future N9 user. I was doing some research, and I stumbled upon this thread. I checked out some more sites and found another one related to weird0's concern. This one, however, got fixed (at least according to the author/editor).
Check it out:
http://www.abudapest.com/latestnews/...h_minor_issue/
I'm not sure if anyone posted this link already, I'm too lazy to check. I hope someone finds this useful. :)

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I've not noticed any spots or lines on dark backgrounds, but I do have these really obvious purple/green lines bleeding from anything dark on light backgrounds. I'd really like know if this can possibly be normal behavior for the screen.

http://zerion7.pp.fi/n9/bleeding.png

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

That is exactly what i have....

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I would be surprised to see a N9 or Lumia 800 screen that didn't show this behavior with that checkerboard pattern. I think it's just the degree of intensity that varies between devices, ranging from hardly noticable to unacceptable.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Can we have someone who has the problem with the black spots in video playback post a link to a video that they were watchign when they saw the problem, and reference a time stamp for the rest of us to look at?

I just got an N9 used from Amazon and want to check for problems. I do notice the purple bars if I use that checkerboard image to fill up half of the screen in landscape, but don't notice them too much when doing browsing.. a little on the top in portrait mode where the search bar is, perhaps.

my buttons are a bit loose, too, but that's going off topic..

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

My first N9 did have screen problems, but the latest N9 I got, white 64gb, made in finland does not have screen issues. I believe that the first batches suffered.

Its funny to think that N9 was just a practice run for Lumia, to work out the kinks. For example, my lumia side buttons are perfect, but on my first N9 they were loose, and on my second N9 they are too flush with the edge and you really have to push it to work

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

On my friends black N9 16GB Made in China for Singapore buttons are perfect but on my two black N9 16GB, both Made in Finland, one for Romania and the other one for Austria has loose buttons and I just hate that.
I'm getting the third one so I'll report that.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I have black spots/streaks on my screen when viewed black colour in dark. I do also see flickr and light vertical lines (light green and pink) when viewed in portrait mode especially with keyboard on screen. My N9 is made in Finland.

Just took this image: http://flic.kr/p/bCSFLi

Is that what you guys see?

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I don't know if any one of you tried this, but to see it
1. Activate the standby screen (make sure the screen tone is "vivid", haven't tried with other tones yet)
2. Go to a completely dark room
3. Cover the clock with a cloth
You'll notice that the black part of the screen flickers at a rate of 1 flick per second. I haven't seen this behavior on the N8 (Anna and Belle screensavers)

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Hey, ive been watching this post because i have been thinking of buying a nokia n9. I will try to address somethings i found out. Ok. I think the purple lines are called colour fringing. This is what is is.

Colored fringing around highlights or dark regions may
be due to the receptors for different
colors having differing dynamic range or sensitivity -- therefore preserving detail in one or two color channels,
while "blowing out" or failing to
register, in the other channel or
channels. (source wikipedia)

colour fringing is because of the pentile matrix.

Chromatic aberration is a lens-based
defect that occurs because the refractive
index of optical glass varies with
different wavelengths. In most optical
glass types, blue light is bent
('refracted') more than green or red light. As a result, a simple lens is unable
to bring all wavelengths of light into a
single focus point on the image plane.
There are two main types.
With longitudinal chromatic
aberration, wavelengths towards the blue end of the spectrum focus slightly
in front of the image plane and
wavelengths towards the red end of
the spectrum focus behind
it. Transverse (or lateral) chromatic
aberration occurs when the different focus points are side-shifted. In practice,
lenses affected by chromatic aberration
generally suffer from both types. It is
most common in wide angle lenses of
the retro-focus type and older tele
lenses (including zooms).

» although this is for a camera you can see the potential with amoled technologies.

Chromatic aberration manifests itself as "fringes" of color along boundaries that
separate dark and bright parts of the
image, because each color in the optical spectrum cannot be focused at a single common point. >> So you see because of the arrangement of the pentile matrix this is what happens. colour distribution is not even. I hope this makes sense? I'm typing form a mobile phone. Il have to get back with the dead pixel explanation.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Ok wanted to add something more, you see.

Red+ green+ blue = white.

So purple is created from Red and blue.

> the human eye is most sensitive to green, so when there is a transition the green is turned off leaving purple. (my theory anyways)
but it explains why amoled has a strange green tint. If RGB makes white then adding green will only make it green because light is a mixture of colours, adding more green as in the RG-BG configuration makes it green thus a green tint. So the purple is as a result of the technology/programming pentile layout.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Sorry if I'm posting too much just want to be helpful. Most people say they see it in landscape now take a look at a pentile matrix for amoled. Notice the pixels. Now turn it landscape and you will see RB-RB-RB pixels lined up.


Hey Guys i was researching it, and in simple, it is because of Amoled Technology, the way it is created. In a short way to explain the TFT backplate matrix behind the Amoled carries the Current, so the pixels can be darkened or brightened as you need, But some how when the Amoled screen is being made, Because the TFT is made from Silicon and a laser is used to convert it into a semiconductor, Because of the Heat spread of the laser, the crystals are not uniform, and so a uniform current does not pass through the screen and to each Pixels, resulting in problems are you guys are facing.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

was there also a question about black spots?

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

For all you screen aficionados, you may find this microscope dude comparison of various screens illuminating:

http://ignorethecode.net/blog/2012/0...en_microscope/

He calls pentile amoled screens horrible:

http://ignorethecode.net/blog/2011/0..._oled_screens/

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

No wonder Nokia changed to a LCD screen on the Lumia 900. Would've been just awefull with a pentile screen in that size with that resolution o.O

Regards Dousan.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I found it interesting you said spots on black background. Because amoled screens pixels arrested suppose to be turned off when displaying black.
Was you phone a first batch to come out? Could it be your panel?

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

actually, lumia 900 uses amoled. But not the pentile one. The RGB amoled like samsung uses.
Apparently nokia has a deal with samsung as on of their biggest amoled buyers.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Nope it's still AMOLED, it just has a higher sub-pixel density & better sub-pixel arrangement.
Samsung's marketing term for it on it's panels is known as Super AMOLED Plus.
Pixel density being equal, it's only significant practical advantage is reading fine print/text.
It's something that may have been do-able for the N9,* but no, it somehow had to be left out.
Hmmm I wonder why.... :rolleyes:

*It wasn't unprecedented at the time, then again Nokia's never cutting edge w/hw, haven't been for years.

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

I have no idea. :(
But check out my photo of my N9 screen with the spots http://flic.kr/p/bCSFLi/

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Sir, can those spots and/or lines be seen in a not-so-completely-dark room? The store where I'm getting it doesn't have a dark room, so would putting the phone in a box be enough to see those spots? Thaanks! ;D

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

i don't think pentile is that bad, I mean, you must do some stressing for you to see it, Well for me, the range i hold the phone when walking and on a day to day basic is fine.


whites, are a problem, But thats what you get when you have new technologies, Like Plasma,

Peoples don't forget try using your Amoled on low brightness, because it has burn-in when you have full brightness and displaying the same thing over and over

Some tips, Avoid using the same time format, every few weeks switch from AM/PM to 24 hrs because the M might burn in. and it will leave marks on your phone screen.

Get a short display timeout- OLEDS break up over time, the brighter the display the faster they bread down.

Avoid Deep blues, Or blues, the blues have the fastest breakdown rate. Greens are better and last the longest.

Try shifting your icons so they don't burn -In and leave marks on your screen.

there is an image from Gsmaerna showing Amoled v SLCD, real world close up

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Something bizarre happened to me just 1 hour ago. I just came back home from my home town using Nokia Drive (aprox 90min) and everything was completely normal. After i parked my car and got the mobile, it shows a green vertical line on the screen. It´s visible in every app and not in the main menu. Tried to solve it by powering off and on again, restoring...so i assume that´s a screen problem. Have you had that problem?
I wouldn´t like to send it back to the nokia care point, as it has all my job documents, contacts....
Thx! :)

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Back up your data. Move the back up to your computer and ship off to service. (I hope you have your Nokia 1100 ready for temporary use.)

Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 

Thank you for great tips!

Do you know what is the origin of black spots on the screen?