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Does anyone experience a "white shadow" problem on n1's screen?
when i read a document, i notice the margin area is not purely white, but there's "shadow" of text on the right
is this a amoled limitation of is it just me?
I will try to take photo if the explanation is not clear enough
another issue is that i've always found the n1's screen color to have a red hue
same for this, is it just me or do you have similar experiences?
Hey, no red hue but i do sometimes have a 'white shadow effect' which i notice looking at text, such as reading an email [not 100% sure if this is same problem as yours tho].
i was worried that this might be a problem with the screen but its just a fingerprint issue - all you need to do is wipe the screen!!
the finger prints left on the screen were what caused my white shadow, wipe the screen clean and all the text is evenly black.
magic
I have also seen this phenomenon, specifically in the web browser when there is a white background with back text. It doesn't happen all the time, but its fairly visable when it does. Perhaps this is a defective amoled screen issue? Or maybe just amoled screen artifacts.... not sure. Anyone else seen this?
Also this isn't a fingerprint issue, happens on perfectly clean screen.
I have the odd ghost shadows when reading black text on a white background too.
boxmander said:
I have also seen this phenomenon, specifically in the web browser when there is a white background with back text. It doesn't happen all the time, but its fairly visable when it does. Perhaps this is a defective amoled screen issue? Or maybe just amoled screen artifacts.... not sure. Anyone else seen this?
Also this isn't a fingerprint issue, happens on perfectly clean screen.
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Click to collapse
I see this too. I just chalked it up to a byproduct of AMOLED screens or something. Doesn't really bother me and I don't really notice it that much either.
boxmander said:
I have also seen this phenomenon, specifically in the web browser when there is a white background with back text. It doesn't happen all the time, but its fairly visable when it does. Perhaps this is a defective amoled screen issue? Or maybe just amoled screen artifacts.... not sure. Anyone else seen this?
Also this isn't a fingerprint issue, happens on perfectly clean screen.
Click to expand...
Click to collapse
hmm that's strange because i do sometimes have exactly the same problem and can see the problem disappear as i wipe the screen. From my limited knowledge about amoled screens it seems unlikely that the pixels could be experiencing some sort of 'come and go' problem such as this. If someone could put up a picture...
Well for the record this is a very minor issue, I like my N1 a lot, its hardly noticeable. However I am interested in investigating it, and attempting to take pictures of the effect was well, less then fruitful.
It turns out my digital camera doesn't take pictures up close that well, its actually pretty terrible. I was trying to get a screen shot app to try to capture it but the ones on the market are only for root users, and I haven't made the plunge into root, yet.
kiddyfurby said:
another issue is that i've always found the n1's screen color to have a red hue
same for this, is it just me or do you have similar experiences?
Click to expand...
Click to collapse
I have this problem and it's very off-putting.
Does anyone know if it's theoretically possible to calibrate the screen à la a computer monitor to reduce this reddish casting? In greyscale photos all shades have a very noticeable pink tone (not photos taken by the phone's camera).
I'm giving this thread a kick, because I also experience this 'problem' of having (faint but clearly visible) ghost lines or 'white shadow' when viewing small text/objects (Nexus One), especially noticeable in the browser. The weird thing is, it completely disappears when switching to landscape mode. Turning the brightness down worsens the phenomenon.
It is also reported at Google's Android support, sadly I can't report the link because of my newbie restrictions I also found one report of the Desire having this problem.
I would ask felow Nexus owners if they want to turn down their brightness and report if they also see this ghosting in portrait view (i.e. when viewing an article on nytimes.com fully zoomed out), so we can conclude if this is an insoluble AMOLED related issue or an actual screen defect of your phone (RMA/waranty-issue).
I have the text ghost image on white background. I thought it was software issue, but since it disappears in landscape view that might mean its a limitation of the pentile sub pixel layout.
I think this should explain it. It's not really the AMOLED, but how the "pixels" are actually laid out.
arstechnica.com/gadgets/news/2010/03/secrets-of-the-nexus-ones-screen-science-color-and-hacks.ars
I read that this issue doesn't occur in the old Dolphin browser. I don't have my phone with me right now. Can someone try it? I doubt it has anything to do with the pentile subpixel arrangement. I mean if the part of the screen is supposed to be white, the pixel should display white, not grey. Probably a software issue, IMO.
I just checked, shadows on both. It's a screen thing.
My bad. You weren't using the Dolphin HD browser, were you?
Thank for your replies I don't think it is the browser though, the same problem persists in Gmail, Adobe PDF Reader and Documents togo, I suggest you use one of these applications to look at small text on low brightness. It might be a little more noticeable in de browser, but looks like it isn't a pure software issue. Can you confirm this finding?
@voiceunebunu: yes, I've read that, but that article concentrates on text fuzziness etc. because of the PenTile arrangement, but does not mention this 'ghosting-like' effect.
Of course this isn't such a 'big deal': I would rather have my screen calibrated so it doesn't show up al reddish and get a better screen view in daylight, but hey, I knew about those problems before I bought the Nexus, but this one seams to be very sparsely documented on the internet.
This effect reminds me of the first, monochrome LCD-displays, which also had this problem (only 100x times worse), especially if they grew older.
Possible work around?
Hi everyone,
I've found a work around for this!
Cyanogen 6 has a feature called "Render effect" and basically, there are options to change what and how colours are displayed.
The last three "calibrated" seem to be for the Nexus specifically. I've used all three and the "calibrated" and "calibrated (cool)" are my favourite. Both slightly change the colour output.
There is a slight yellow tint over whites. For my screen the ghost lines are greatly reduced (it used to be visible with normal size text and exceptionally bad when zoomed out). Now its only slightly visible when zoomed out!
Hope that helps!
or my screen have problem.
download display color test from market or any other aplication
set your display light to manual and lower one possible.now open display color test, or any other picture and you whil see.... some orizontal lines like gradients.
(for me i can use a lower light to 40 %).
tell me your experience.
please.
Light lowered as low as possible... no probleme here
With some less intensive colors I could make out some kind of lines but I had to watch pretty closely to notice them. If I hadn't been searching for them, I probably wouldn't even have noticed. So it's nothing I would worry about, unless they are more pronounced for you.
CazeW said:
With some less intensive colors I could make out some kind of lines but I had to watch pretty closely to notice them. If I hadn't been searching for them, I probably wouldn't even have noticed. So it's nothing I would worry about, unless they are more pronounced for you.
Click to expand...
Click to collapse
for me are pronunced with lover ligt
same here, especially for grey colors, i noticed this first in the application "Programm Manager" (German TV guide) at the home screen.
Hi,
I have just purchased an HD7 and I really like it so far but I have a question regarding some screen distortion I am seeing when I scroll through menu's, apps, etc...
For example (and where it is most noticable although it does happen in other areas as well) when I go to the applications menu (where all apps are located to the right of the Windows screen) and I scroll through the apps from top to bottom, all the writing beside each app icon becomes so distorted while scrolling (almost static like) that you cannot even make out what the words are saying until the scrolling stops and then everything is ledgable again. Is this normal?
On my Galaxy S the scrolling does not affect the font / writing this way at all and even on my old Omnia i910 I dont remember seeing this type of distortion when scrolling.
If someone can please advise me on this I would really appreciate it. Is this normal for this device? Does yours do it? Anyway to fix it?
Thanks
yiannisthegreek
It's normal behaviour but I'm not sure of the cause. From what I've seen, this only happens when using the black theme. If you use the white theme it doesn't happen.
Shadowise said:
It's normal behaviour but I'm not sure of the cause. From what I've seen, this only happens when using the black theme. If you use the white theme it doesn't happen.
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Click to collapse
Thank You for the reply. Really? Hmmm... That is odd. I wonder if this will be something that will be fixed in updates perhaps?
I use a black theme and this doesn't happen to me at all. Certainly not to the point it's unreadable.
jimbonics said:
I use a black theme and this doesn't happen to me at all. Certainly not to the point it's unreadable.
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Click to collapse
Hmmm... Now Im confused... One person says it happens to him and one says it does not.
Do you experience any distortion of the writing in apps, etc while scrolling? It is minimal when I scroll slowly but when I scroll fast it is quite noticable.
PS... I did also try the white theme and it does not do it in the white theme as was mentioned by the other poster... Only in the Black theme.
I guess I'm not sure what the deal is. When I'm scrolling fast, it could be a million dollar screen with perfect clarity and I STILL wouldn't be able to "read" what was there. I mean, I have 20-20 vision and am a pretty quick reader and I can barely read my chat log scrolling slowly. When scrolling fast enough to "distort" you would have to be able to read about 120 words per second (I scroll through three screens worth of text in less than a second, about 40 words per screen). That's 7200 words per minute which is darn near World Record Speed Reading (not counting those who skim most of it and lose a great deal of comprehension).
I'd just like to say that it's not a major issue for me, but it does happen. When scrolling the app list, the text does fade out, but I don't really see it as much of an issue as the items are moving so fast that you wouldn't be able to read the text at any rate. As the list is alphabetical, I know where I need to stop, I'm not reading the apps one by one as I go along.
I'm not sure now if the OP is experiencing a different issue but he did confirm, as I have, that it doesn't happen in the white theme.
Shadowise said:
I'd just like to say that it's not a major issue for me, but it does happen. When scrolling the app list, the text does fade out, but I don't really see it as much of an issue as the items are moving so fast that you wouldn't be able to read the text at any rate. As the list is alphabetical, I know where I need to stop, I'm not reading the apps one by one as I go along.
I'm not sure now if the OP is experiencing a different issue but he did confirm, as I have, that it doesn't happen in the white theme.
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Click to collapse
@Shadowise,
Yes... This is what I am talking about and again Thank You for your answers. I also really notice this when using the People Live Tile and especially in the synced Facebook listing. The text DOES fade out and the smaller the text the more faded it seems to become. Again... This is in the Black theme.
Also, I have noticed while in the People "hub" when scrolling from side to side that the screen itself darkens / dims out while scrolling and it also DOES this in the White theme as well. Is this also normal behavior?
If your not sure what I am talking about then please go into the People tile and just hold your finger on the top of the screen (where it says people in big letters) and slowly slide your finger and you will see the screen darken / dim out as it scrolls - unless there is something wrong with MY device in which case you may not notice what I am talking about.
Please let me know if this happens to you and if this is normal as well. Again... my Android does NOT do these things and so I am not sure if this is normal behavior.
Thanks in advance...
yiannisthegreek
My screen absolutely does not do this. The people tile actualy looks sharper than the apps screen, regardless of how fast I scroll. The screen does not dim out _at all_.
Black background.
It happens over here as well this is due to Motion Blur, the quality of screen used by HTC is poor and this is a known issue with the HTC HD7 and HTC Surround. HTC should have used a better screen specially for its flagship device on the Windows phone 7 platform. But i guess thats the main reason they didn't; the platform is new theres no need to increase costs for a niche emerging market.
Ok... I am confused again... One answer says that this absolutely DOES NOT happen to him and another answer says that it DOES... LOL!!!
This happens because of the 4.3" screen. It's not the best screen in the world. The 4.1" dell venue pro screen never exhibited this behavior and when I switched to the hd7 I noticed it immediately.
It's called response time, it's not fast enough as some other screen, basically it's more prominent while using black theme because it takes full response time (i.e. 8ms) for a pixel to change it colour from black to white and then to black again while you scrolling.
microhaxo said:
This happens because of the 4.3" screen. It's not the best screen in the world. The 4.1" dell venue pro screen never exhibited this behavior and when I switched to the hd7 I noticed it immediately.
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Click to collapse
The funny thing is that the more I play with it the more I notice that this only really happens within the stock Microsoft OS apps like People, Zune, etc. When I scroll through other 3rd party apps such as Facebook (actual app and not the synced version in the People tab), FIM (Facebook Instant Messenger), among other 3rd party apps that this fade out / distortion does not take place.
Anyone else find the same?
EDIT... I have confirmed the fade out / screen distortion to again seemingly only to be affecting the Microsoft stock OS apps again after going into Marketplace, Office, (along with the others mentioned above). It does not seem to affect 3rd party apps... Facebook, FIM, Yellowpages, YouTube, etc.
Again... Anyone else find the same or can check?
jimbonics said:
My screen absolutely does not do this. The people tile actualy looks sharper than the apps screen, regardless of how fast I scroll. The screen does not dim out _at all_.
Black background.
Click to expand...
Click to collapse
We're not talking about the whole screen, just the text.
Shadowise said:
We're not talking about the whole screen, just the text.
Click to expand...
Click to collapse
Actually... I am talking about like 3/4 of the entire screen when scrolling from side to side in any Microsoft stock OS App.
Like I said in my previous post... if you go into say the People live tile and place your finger on the top portion of the screen where in big writing it says "people" and just slowly start to move your finger to scroll you will see the bottom half of the entire page / app dim out until you remove your finger or it completes its scroll.
As I said... it does this on my device in EVERY Microsoft STOCK OS app like People, Zune, Marketplace, XBOX Live, etc but in 3rd party apps it does NOT do this. This happens in WHITE theme as well.
To try and reproduce this please go to any Microsoft OS App like "people", press your finger at the top of the page and move your finger side to side in short movements and watch your screen. You should see the dimming effect unless my phone is defective or something.
Please tell me what you find.
i'm pretty sure this is not a bug or an issue, it's just intentional, and it's 100% a software thing, you can see that in many wp7 reviews...
but a different thing is the effect you see scrolling the applist, that one is related to the hd7 screen and you won't see it using, for example, an omnia7
elmerendeiro said:
i'm pretty sure this is not a bug or an issue, it's just intentional, and it's 100% a software thing, you can see that in many wp7 reviews...
but a different thing is the effect you see scrolling the applist, that one is related to the hd7 screen and you won't see it using, for example, an omnia7
Click to expand...
Click to collapse
Do you have an HD7? Can you confirm if your screen does the same "dim / fade out" thing in the Microsoft apps as I have described? Also... Why does it not do this in 3rd party apps then like youtube for example? I have even checked the HTC Hub app and in the HTC app store it does not fade / dim out but it sure does in the Microsoft Marketplace app. Weird.
As for the thing you mention about the app list and the screen - well that is my first big dissapointment with this phone. I have a Samsung Galaxy S and of course the SAMOLED is AWESOME but this phone is said to have the S-LCD (Super LCD) display which is supposed to be a pretty good screen too.
Well... I found a youtube link regarding the BLACK theme scrolling words distortion. Here it is...
http://www.youtube.com/watch?v=RperdOR8y5g
But I have not found anything about the screen fade/dimming in Microsoft apps so I hope one of you out here can reproduce it and tell me my phone is ok (even though it will still kinda suck)... LOL!!!
djpianz said:
It's called response time, it's not fast enough as some other screen, basically it's more prominent while using black theme because it takes full response time (i.e. 8ms) for a pixel to change it colour from black to white and then to black again while you scrolling.
Click to expand...
Click to collapse
this is the full reason why ^
If you think your screen is not uniform, then you know the way it is not uniform. If you haven't realized such thing, please leave this thread for your sanity :cyclops:
UPDATE:
I have done some research and experiments and came up with this solution. If you suffer from uniformity problems, this might be useful. If you are a developer, please consider building around this idea!
Aim :
To make our screen look perfectly uniform without any tint/temperature problems.
What you need:
Download these from play store:
-Screen Filter
-Gradient Wallpaper
Also on your computer [optional , for fine-tuning] :
-Adobe photoshop
How to
1) Open white/gray solid images to observe your uniformity issues. Take a pen and write down, or even make a simple drawing ( eg. left edge is more yellow and right edge is more blue)
2) Launch gradient wallpaper app. Look at your notes and make a gradient which is exactly the negative of your initial tint (eg. left edge is more blue and right edge is more yellow). Save it.
3) Launch screen filter app. Select the gradient image you saved and load it as a filter. Increase the transparency and calibrate it to your liking.
4) (optional) Use Photoshop for much more flexibility with places of gradients/ shapes etc.
----------------------
Hello everyone,
Nexus 4 is an awesome phone with minor imperfections. One of them is washed out colors which is fixed by many custom kernels.
The other imperfection is light bleeding, which is a hardware issue. However this and similar issues with hardware causes non-uniformity (or unevenness) across the display specially if it is held horizontally on a white/gray backgrounds.
I have used 10-15 different handled device with ips displays and %80 of them had a visible non-uniformity. Some of us might be totally fine with it while some of us like myself might want better calibration.
HERE IS THE REQUEST:
I have tried fauxdisplay/kernel for a week and I can customize my screen pretty much however I want. The problem is this kernel/app applies the rules for all of the pixels. It would me awesome if we could have 'local' calibrations. (people who use photoshop should be familiar with adjustment brush that changes properties of chosen area).
Tell me what you think about this.
Re: [request for developers] Local screen calibration
What do you mean exactly? And why?
Sent from my Nexus 4 using xda premium
Re: [request for developers] Local screen calibration
Why would we want this? I'm not sure I understand what use this would have.
Sent from my Nexus 4 using xda premium
mark manning said:
Why would we want this? I'm not sure I understand what use this would have.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
To fix non uniformities across the screen . For IPS screens, when you tilt left you willsee aa yellow tint on the screen, when you tilt right you will see a blue one. If you are looking directly without tilting, right side will be bluer than left side (like a gradient most visible with gray) To fix this, we can tell our kernel to render left side little bit bluer to reduce the gradient effect.
Hope this is explanatory.
maxwellr said:
To fix non uniformities across the screen . For IPS screens, when you tilt left you willsee aa yellow tint on the screen, when you tilt right you will see a blue one. If you are looking directly without tilting, right side will be bluer than left side (like a gradient most visible with gray) To fix this, we can tell our kernel to render left side little bit bluer to reduce the gradient effect.
Hope this is explanatory.
Click to expand...
Click to collapse
i get what you mean, but im sure its a LOT more work than just that..
on another note, i read that the optimus g rom on the nexus makes the screen look absolutely amazing - im waiting till someone ports the settings for that onto our phone and hope that this calibration issue ends there.. too much time is being wasted on this (for good measure, yes. but still)
Re: [request for developers] Local screen calibration
maxwellr said:
Hello everyone,
Nexus 4 is an awesome phone with minor imperfections. One of them is washed out colors which is fixed by many custom kernels.
The other imperfection is light bleeding, which is a hardware issue. However this and similar issues with hardware causes non-uniformity (or unevenness) across the display specially if it is held horizontally on a white/gray backgrounds.
I have used 10-15 different handled device with ips displays and %80 of them had a visible non-uniformity. Some of us might be totally fine with it while some of us like myself might want better calibration.
HERE IS THE REQUEST:
I have tried fauxdisplay/kernel for a week and I can customize my screen pretty much however I want. The problem is this kernel/app applies the rules for all of the pixels. It would me awesome if we could have 'local' calibrations. (people who use photoshop should be familiar with adjustment brush that changes properties of chosen area).
Tell me what you think about this.
Click to expand...
Click to collapse
You are asking too much.
Yes you are. LCD screens cannot have regional calibration.
Sent from my Nexus 4 using xda premium
richteralan said:
You are asking too much.
Yes you are. LCD screens cannot have regional calibration.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I don't know how current calibrating is done, so I'd be happy if some developer can help me out.
There are possiblities:
software filtering -> gpu-> driver-> screen (slow)
gpu-> graphic matrix-> software calibration -> driver-> screen (fast)
gpu-> graphic matrix-> driver-> calibration within driver with given values -> screen (fastest)
if it is the first one, it can easily be done. You can choose what to do to any individual pixel. For example, It is done when there are pop-up windows. While pop-up is bright and visible, remaining area is darkened/grayed with some software processing. So with root access, a program might make sure that some area of the screen is always dimmer, brighter or more saturated than other, while it is running on background. (like a filter that is always on top. This for sure can be done: look at many apps that you can slide from left anywhere within android and some menu pops up. What if instead of a menu %85 transparent and blue [to fix yellowing] solid color stays there?)
If it is second one, well, then it is hard as it needs a lot of C programming- testing. But it will be faster than first option.
Check the first post for the update!
I bought two separate Droid Bionic phones new via a vendor on, and fulfilled by, Amazon and it had some display problems. I noticed it in the stock rom, recovery and cyanogenmod. The second had the same problems in the stock room. Both have been returned. Verizon checked that the first phone was clean. I did not bother checking the second. (I had both phones at the same time, so they couldn't have sent me the same phone twice.)
There were two issues. First, there was a faint large rounded rectangle of a slight dimness that was very visible with certain content (some black screens like settings) and hard to see, but definitely still there, with other content (netflix, when sliding the home screen and its background). It did not change between landscape and portrait. This was about half the width (short-side) and three quarters of the height (long side).
The second issue was that in some screens, you could see lines of pixels of slightly varying color. For example, a black screen would have lines of slight color in bands. This was most noticeable in the settings and would rotate with the screen to remain on the bottom of the screen.
Should I try a third from another seller? Or is this a matter of you-get-what-you-pay-for and I should go look for something else?