Nexus 4 Replacemnt Screen Test - Nexus 4 Q&A, Help & Troubleshooting

My friend recently dropped his nexus 4 and apart form there being massive cracks on the screen, the touchscreen wouldn't work because of the broken digitizer. He did not want to send it off to LG because of the high costs and the long waiting time. We went to a local phone repair shop and were assured an original LG screen would be fitted.
So, the next day we go to collect the phone and here are a few differences between my nexus 4 (untouched) and my friends newly repaired one:
- When screen is off there is a blueish tint to his screen.
- Vertical and horizontal lines are visible when staring at it with in a bright environment.
- The digitizer would not respond at one point and we had to hold the power key until it rebooted.
Now, I'm assuming that this is not the original screen for this phone and is probably a copy. what i am looking for is a screen testing application that i can install and run on both of the nexus devices that can give me figures which i can use to compare both of the screens side by side to see how much of a difference there really is.
Thanks in advance.

There are always differences between original lcds. Some Chinese lcds are even better than originals. If there is no problem when the screen is on and all colors appear OK with no strange tints of any color, I think your friend's lcd is fine. There are some hardware testing applications (or you can just use a painting application as well), with which you just draw thin lines so that you can see if there are any dead areas on the digitizer.
Are you sure the screen was changed and not only the digitizer? If only the digitizer is changed I don't believe they put this loca glue between the new digitizer and the lcd. That can cause some touch issues on the n4, but usually everything works well. Sorry for my English.
Sent from my Nexus 4 using Tapatalk

Sp_Ark said:
There are always differences between original lcds. Some Chinese lcds are even better than originals. If there is no problem when the screen is on and all colors appear OK with no strange tints of any color, I think your friend's lcd is fine. There are some hardware testing applications (or you can just use a painting application as well), with which you just draw thin lines so that you can see if there are any dead areas on the digitizer.
Are you sure the screen was changed and not only the digitizer? If only the digitizer is changed I don't believe they put this loca glue between the new digitizer and the lcd. That can cause some touch issues on the n4, but usually everything works well. Sorry for my English.
Sent from my Nexus 4 using Tapatalk
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Click to collapse
The whole front side was changed including the LCD and the digitizer, even the notification light is different. The screen is fine although i can see that the colours are much cooler and have a blueish tint. I need an application to test if the screen has the the same PPI and responsiveness. As you said above, hardware testing applications.

bluesteve3 said:
The whole front side was changed including the LCD and the digitizer, even the notification light is different. The screen is fine although i can see that the colours are much cooler and have a blueish tint. I need an application to test if the screen has the the same PPI and responsiveness. As you said above, hardware testing applications.
Click to expand...
Click to collapse
There are a lot of lcd and hardware testing applications but i dont think you ll find one that does what you want. I may be wrong though. Usually they just show all the colours so you can check if all of them appear correctly and identify any dead or stuck pixels. Also the touch response and the multi touch. Thats it. I dont think you ll get any more info for any screen from an app. This is a good example https://play.google.com/store/apps/details?id=com.harvestcellular.lcdscreentester&hl=en
As i said @ my first post, you can find big colour differences even between original nexus 4s. You can always root and flash a kernel with which you can "play" with the colour profiles. I have changed lcd's for the n4 and had this kinda blue/cool/washed out colours tint. It was solved with the colour profile obsanity amoled, while didn't like the same colour profile on lcd's that i changed without any kind of tint. Search here for n4 colour profiles. There are a lot of apps on play store with which you can control colours. My best experience is ak kernel with synapse apk.

Sp_Ark said:
There are a lot of lcd and hardware testing applications but i dont think you ll find one that does what you want. I may be wrong though. Usually they just show all the colours so you can check if all of them appear correctly and identify any dead or stuck pixels. Also the touch response and the multi touch. Thats it. I dont think you ll get any more info for any screen from an app. As i said @ my first post, you can find big colour differences even between original nexus 4s. You can always root and flash a kernel with which you can "play" with the colour profiles. I have changed lcd's for the n4 and had this kinda blue/cool/washed out colours tint. It was solved with the colour profile obsanity amoled, while didn't like the same colour profile on lcd's that i changed without any kind of tint. Search here for n4 colour profiles. There are a lot of apps on play store with which you can control colours. My best experience is ak kernel with synapse apk.
Click to expand...
Click to collapse
Thank you for your suggestion. I will definitely try the colour profile.

Related

Request: Someone with a White Note Please post a pix of it

if any of you have a digital camera and white galaxy note, can you please post a picture of plain white display (via LCD Test *#0*#) in low brightness. Please let me know. thank you all in advance.
Here you go. Hopefully the file attaches (I think it may be too large).
Oh, it looks like it may have downsized it. Let me know if you need more detail.
Is that dirt or a dead pixels on that image?
Sent from my GT-N7000 using Tapatalk
Must have been specs of dust. I checked just now and they're not there.
PAGOT said:
Is that dirt or a dead pixels on that image?
Sent from my GT-N7000 using Tapatalk
Click to expand...
Click to collapse
I bet you almost gave him a heart attack
LordManhattan said:
I bet you almost gave him a heart attack
Click to expand...
Click to collapse
hahahahahaha
Thanks a lot! Do you have a screen protector applied on top of that? I see something that looks like mura lines. I'm sure those are not mura lines but the way the camera was focused on the screen. Also that display brightness was set to the lowest, right?
It would be great to see more users contribute to this thread. I'm making a tally to convince myself to buy a White note. My black note was serviced several times due to screen issues, and am getting a refund. Not letting go of the note just yet.
netonyx said:
Here you go. Hopefully the file attaches (I think it may be too large).
Oh, it looks like it may have downsized it. Let me know if you need more detail.
Click to expand...
Click to collapse
don't know if my eyes are playing me, I do see a couple of horizontal lines, I don't know if that is due to the screen protector or the angle the picture was taken from, don't wanna scare you, but I am hoping that the next wave of batches have a better production like the S2.
The witch hunt continues
Sent from my GT-N7000 using xda premium
Always Positive...
However, you can definitely appreciate the fact that the White Note has a better display than the Black. Horizontal lines or not, they definitely display less on the White compared to the Black. Hope to see more pictures soon!
SAlmighty said:
Thanks a lot! Do you have a screen protector applied on top of that? I see something that looks like mura lines. I'm sure those are not mura lines but the way the camera was focused on the screen. Also that display brightness was set to the lowest, right?
It would be great to see more users contribute to this thread. I'm making a tally to convince myself to buy a White note. My black note was serviced several times due to screen issues, and am getting a refund. Not letting go of the note just yet.
Click to expand...
Click to collapse
No screen protector. And yes, I set the brightness all the way down before I took that photo.
I think if you're seeing a moire pattern it may be because of the difference in resolution between the reduced-resolution image and your monitor. I'm looking at the original photo in Photoshop and when I zoom in and out I see changing moire patterns at certain zoom levels, but don't notice anything when I look at it zoomed in at 100%, or even at 50%. And of course I don't see any moire pattern when looking at the phone itself.
Oh, and the brighter area in the lower left of the photo is my hand's reflection.
I do, however, see faint horizontal (vertical in this photo) banding on the screen when looking at the phone. I couldn't say whether it's any better or worse than the black/carbon blue version, as I've never seen one. I'd describe the banding as very faint, but visible if you're looking hard for it. And when looking at a blank white screen like this, I also have a general sense that not every part of the screen is quite the same level of brightness. Again, not major, but noticeable when looking at a solid white screen.
You'd need to reduce the brightness further with Screen Adjuster from the market. The basic brightness setting at 0% is probably only at 50% of what the screen is actually at. So you can go much dimmer to reveal the manufacturing process.
Learn to live with it. The marks don't affect the functionality of the screen. While I have noticeable marks on the bottom right half of the corner and vertical streaks, I don't let it deter me from enjoying this elegant piece of tech!
SAlmighty said:
However, you can definitely appreciate the fact that the White Note has a better display than the Black. Horizontal lines or not, they definitely display less on the White compared to the Black. Hope to see more pictures soon!
Click to expand...
Click to collapse
That is bollocks My new white 32 GB Note has a much worse display than my former two blue 16 GB. Think I gonna send it back so that the white has a better display is pure dreams
I just ordered my white note today. Looking forward to it arriving on my doorstep tomorrow!
guys make sure to turnoff AUTO ADJUST SCREEN POWER in display options.
i have black unit and i done lcd test on low brightness.no lines or anything.
if you have to download app to lower brightness even more to see defect.then something is wrong with u.because ur looking for reasons to find some kind of defect.everything is not perfect.if u cant see it on normal use,then its good piece.

Screen Adjuster

Guyz I bought a galaxy note last week...just out of the box i saw a yellowish tint all over the display basicaly from the bottom left.....
so i got an app screen adjuster
i installed then adjusted the blue at +5 and now 90% of the yellowish tint is gone..
soo i have to ask is it safe to use this app????
heres the link to the app Here!
Sure its safe to use but if your note is flawed from the factory then take it back ??
Sent from my GT-N7000 using XDA Premium App
I use it to lower the contract to -40 as it fixes some of the black rendering issues. I also set the overall brightness down to 75% as it is just set too bright (I turn it off when outside).
I have never fiddled with the colour as my colour renders perfectly. I agree that if it is not rendering correctly, send it back for a replacement. It will likely only get worse.
jeromepearce said:
I use it to lower the contract to -40 as it fixes some of the black rendering issues. I also set the overall brightness down to 75% as it is just set too bright (I turn it off when outside).
I have never fiddled with the colour as my colour renders perfectly. I agree that if it is not rendering correctly, send it back for a replacement. It will likely only get worse.
Click to expand...
Click to collapse
interesting how it helps you to solve some black rendering issues, but not at all for me.
Yeah its awesome but lags my ICS ROM down
its awesome app ... removes black blocks completely on videos .... is it factory issue with my note .. as i think it should work correctly be default .... isnt it ? ....
For sure is a very good and safe app but better now that is brand new it s better to take it back....
I have observed the similar thing.
I have now bought 4 Notes for myself and my family members (Yeah I know, 4 people in family with Note ). My personal one manufactured in October and those bought recently (3 of them, all made in January 2012) have different colour reproduction.
The new ones have slightly warmer colours when you look dead on (with slight shift to blue when you look at it from bottom at extreme angles which is to be expected).
But straight on, the new Note has colour reproduction similar to my Galaxy Nexus. ITs slightly warm. Its definitely not the colour calibration as it remains same regardless the ROM I use. Its definitely not like traditional SAMOLED blueish display like my old Note or SGS2 which I had before that.
All 3 which are manufactured in Jan 2012 have same colours. All 3 bought from different stores few days apart. But I dont think its bad thing. It actually little warmer like Nexus and is more closer to real life colours. I know that many people prefer artificial looking, eye popping SAMOLED colours, but I am definitely not complaining.
Funkym0nkey said:
I have observed the similar thing.
I have now bought 4 Notes for myself and my family members (Yeah I know, 4 people in family with Note ). My personal one manufactured in October and those bought recently (3 of them, all made in January 2012) have different colour reproduction.
The new ones have slightly warmer colours when you look dead on (with slight shift to blue when you look at it from bottom at extreme angles which is to be expected).
But straight on, the new Note has colour reproduction similar to my Galaxy Nexus. ITs slightly warm. Its definitely not the colour calibration as it remains same regardless the ROM I use. Its definitely not like traditional SAMOLED blueish display like my old Note or SGS2 which I had before that.
All 3 which are manufactured in Jan 2012 have same colours. All 3 bought from different stores few days apart. But I dont think its bad thing. It actually little warmer like Nexus and is more closer to real life colours. I know that many people prefer artificial looking, eye popping SAMOLED colours, but I am definitely not complaining.
Click to expand...
Click to collapse
My Note has Black Color Blocking in videos ... so its faulty ? should i send it back in warranty ?
arsalan_qamar said:
My Note has Black Color Blocking in videos ... so its faulty ? should i send it back in warranty ?
Click to expand...
Click to collapse
Black colour blocking is universal as far as I know. All of the Notes I have seen have it with hardware accelerated video playback. Using software decoding using players like MX video player or MoboPlayer or BSPlayer solves the issue for now and there is already work under way to fix this issue. I dont think you need to return your phone for this as new one will most likely have same issue.
What I mentioned was regarding general colour reproduction of the screen. The new Notes have slightly warmer colours everywhere. Be it in home screen, browser, gallery or video.
arsalan_qamar said:
My Note has Black Color Blocking in videos ... so its faulty ? should i send it back in warranty ?
Click to expand...
Click to collapse
No, it's not faulty. Color banding or black blocks are just artifacts introduced by developers or the video encoding process for the most part - the issue is generally not apparent on TFT display types since the LCD layer isn't able to block 100% of the light to show you a true 'black' pixel.
Good dithering can hide the problem somewhat, but on OLED displays it's more difficult since they are far better with contrast.
You could look at it one of two ways...
You have a superior display technology that the world just needs to catch up with.
Or you have a worse screen because it doesn't hide what other display types are incapable of rendering.
Take your pick : )
dtchky said:
No, it's not faulty. Color banding or black blocks are just artifacts introduced by developers or the video encoding process for the most part - the issue is generally not apparent on TFT display types since the LCD layer isn't able to block 100% of the light to show you a true 'black' pixel.
Good dithering can hide the problem somewhat, but on OLED displays it's more difficult since they are far better with contrast.
You could look at it one of two ways...
You have a superior display technology that the world just needs to catch up with.
Or you have a worse screen because it doesn't hide what other display types are incapable of rendering.
Take your pick : )
Click to expand...
Click to collapse
Thats a relief ... i was also thinking the same thing as , other colors looks quite nice on my note ... only issue is the blocky blacks which on less resolution videos are more visible .... however i was able to solve the issue using screen adjuster app by setting contrast to 55% ... at that it displays no blocky blacks at all ... just the screen gets an overlay of grey for pure blacks..... i can live with it ...

Nexus 4 annoying visible IPS sensors

Hey guys,
I've had my nexus 4 for a week now and I am super pleased by it. The phone runs like a dream.
The only issue I seem to be having is that I can see the IPS sensors even with the screen on!.
I'm talking about the little transparent-gray squares all over it, not about the super awesome dots that you can see with direct sunlight.
This is flipping me out!
Is anybody else having this problem with it?
I can't appreciate the beautiful screen because of this.
Also, when displaying single color frames specially dark ones, like on the clock app , the colors are not really solid.
I get this vertical stripes that are approximate to the color but not quite it.
Im posting a screenshot but I don't think that youll be able to notice it since it may be a hardware problem.
Sent from my Nexus 4 using xda app-developers app
That's a hardware thing, not visible in screenshots. You'd need to take an actual picture.
Are you referring to the dot grid that is visible in direct sunlight? Everyone has is. It's because of the fact that the screen is integrated into the glass.
I think it looks kind of cool but that might just be me.
Edit: Gotta read the whole thread first I guess you're not talking about the dots. I have no idea what you're talking about then.
Sent from my Paranoid Nexus 4 using Tapatalk²
Question to the OP. Do YOU see anything wrong with those images, or is it a hardware problem? I can't see any difference between your screen shots and my phone.
Damn it man, now i see them too -.-
I went to the clock app, and i can see some stripes on the left but mine are vertical.
kcls said:
That's a hardware thing, not visible in screenshots. You'd need to take an actual picture.
Are you referring to the dot grid that is visible in direct sunlight? Everyone has is. It's because of the fact that the screen is integrated into the glass.
I think it looks kind of cool but that might just be me.
Edit: Gotta read the whole thread first I guess you're not talking about the dots. I have no idea what you're talking about then.
Sent from my Paranoid Nexus 4 using Tapatalk²
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Click to collapse
Hello after using my nexus for almost 2 weeks today i noticed some vertical line (of Dots) on my screen under direct sunlight...these dots very moving and can be seen with screen off also..
is there any thing to worry..
ramkumar2000 said:
Hello after using my nexus for almost 2 weeks today i noticed some vertical line (of Dots) on my screen under direct sunlight...these dots very moving and can be seen with screen off also..
is there any thing to worry..
Click to expand...
Click to collapse
Haha Dude that's the digitizer. Don't worry. It's all cool.
Chill out people.. Its just the digitizer that you can see, so close to the screen for better touchscreen responsiveness. The most likely reason you can still see it with your device screen on is that you have your brightness too low.. Put it up
even amoled screen are also the same
davidang said:
even amoled screen are also the same
Click to expand...
Click to collapse
When I first got my Nexus4 the weird screen was the first thing that popped out at me. Between the visible digitizer matrix that glints when it catches the sun wrong, to the odd rectangles that can be seen behind the screen I was initially bummed and thought about returning the phone. It doesn't even bother me anymore
This is my 8th android device and the first one that has a funky screen like this, but it really isnt a big deal. Under 95 percent of conditions it looks really nice
I have been able to see the digitizer on every single capacitive screen i have ever owned.
@David_Azar I have to agree.. initially I was disgusted by how prominent the digitzer pattern was, I've never had ANY screen show it as much as the Nexus 4 does.
However, the vertical stripes you're referencing is commonly referred to as "banding". I have this on my Nexus 4 as well, most visible on grays (especially darker grays).
I have been doing some research and I believe the banding issue will reduce over time. If you check your screen when displaying a white background at max brightness, such as gmail or chrome browser, you should see a slight yellowing of the whites. It appears this can be due to the adhesive they used to glue the digitizer to the screen not curing completely. After several weeks of use, the heat from the processor will help cure the adhesive causing the yellow to disappear after a while.
I cannot say for certain that it will completely resolve the banding issue, but I have noticed that the worst banding is in the areas where the yellow tint is most prominent. I have also been testing my display every day to monitor any changes, and I am happy to report I do see a minor reduction in both the yellowing and banding (I've only had my Nexus 4 for five days so far).
Give it a couple of weeks, run some intensive games to get the processor to heat up every day. Keep brightness at max for the next few weeks and let us know if you see any improvements.
As for the pattern of the digitizer in the glass.. it's not going anywhere so get used to it. I don't like it much either but it seems to be less prominent once you start becoming used to it.
Good luck, let us know how it goes
Hey man,
Curiously enough I've never had the yellow tints everybody's complaining about. I'm used to The digitizer matrix ( rectangles) buy at first it was really weird. I was coming from a non HD display ( a RAZR Maxx) so naturally, I expected that my N4 would have a perfect screen.
I've had my N4 for almost two months now and the banding has not reduced. I made some research over the last month and I found that with some kernel settings for saturation the banding is reduced. I'm not sure if it is really reduced or the clear gray tones that have the banding just don't appear anymore because of the saturation.
The Trinity kernel reduces this a bit but like I said, your screen will look life a f*** ing AMOLED.
Right now I'm using the kernel provided by the 123 FAUX CLOCK project. I'm using the LG factory presets and for the most part I'm really happy with the screen. If you or anybody else comes up with a different solution, let others know on this thread.
Peace brothers.
Sent from my Nexus 4 using xda app-developers app
Just for kicks, if you stop by a T-mobile location compare your screen with the display model and see if you can spot the yellow tint on either screen (on a white background)
I will update this thread with my phone's progress (or lack thereof if it stops improving).
I get banding issues also, more noticeable in grey backgrounds; but I can I see them in other colors if I look hard enough
I use a dark black theme to avoid looking at those bands
I can say this. I've had a ton of devices..latest was s3 and I'll just say I'm stoked to have IPS over pen tile. Just knowing HD was plagued by this alone was enough for me to ditch Sammy all together especially after seeing rgb on note 2 was no better. This is my opinion of Samsung's design ...I know why they chose it but I can't and won't buy another amoled until they get another tech in order. So now I say kudos on IPS but I'm surely a screen purest and I found these hardware screen/digitizer artifacts you speak of and to me its so much less noticeable. Your not alone. You just like good clean HD like me. Lol HTC one should be a nice one to check out...
Sent from my Nexus 4 using xda premium
That would be a little like kicking myself in the nuts. Nothing good can come out of that.
If I spot the yellow tints once, then I will always look for it. I hate doing that with the banding but it's an automatic thing.
I dunno why but it really bums me out whenever I have a problem with my phone.
Let's keep posting of someone finds a solution or something .
Sent from my Nexus 4 using xda app-developers app
I've got the quite visible digitizer rectangles too. In anything less than a dark room if the phone is not on a perfect angle they are visible.
I can't really tell if "everyone's" is like that, or just some are "worse" than others.
visibledigi1.jpg
Here's an image with them visible with the screen on (and at an angle) - difficult to take a photo of - but much easier to see with the naked eye.
visibledigi2.jpg
visibledigi3.jpg
Few more with the screen off.
sargorn said:
I've got the quite visible digitizer rectangles too. In anything less than a dark room if the phone is not on a perfect angle they are visible.
I can't really tell if "everyone's" is like that, or just some are "worse" than others.
visibledigi1.jpg
Here's an image with them visible with the screen on (and at an angle) - difficult to take a photo of - but much easier to see with the naked eye.
visibledigi2.jpg
visibledigi3.jpg
Few more with the screen off.
Click to expand...
Click to collapse
Went and checked out an Optimus G today (Nexus 4 isn't actually released in Japan). Given that a Nexus 4 is just a remodeled Optimus G I thought it'd be worth comparing screens. The digitizer matrix is barely visible on the G I was looking at with the screen OFF. With it on you could almost see it at some angles. It is much more visible on my Nexus 4 which you can almost always see with the screen off and at an angle and often with the screen on.
I'm leaning towards my phone being "less than a perfect example of a Nexus 4" and not the "norm" at the moment.
they are much more noticeable in Rev 11 devices and they where barely visible in Rev 10, i am sure that there is a technical reason behind it
DynamicRam said:
they are much more noticeable in Rev 11 devices and they where barely visible in Rev 10, i am sure that there is a technical reason behind it
Click to expand...
Click to collapse
See that explains it a little more. Not sure I see the logic in putting a screen with pretty decent viewing angles on a device and then sticking a really visible digitizer on it though.
I've contacted the seller and I guess I'll wait and see what they say in regard to it.

[Q] Yellow Tint & Brightness issues (again!) - Why??

I know there are other threads that discuss this topic (somewhat) but I wanted to post this separately because what I'm asking is very specific.
I've had about 8 separate Nexus devices from Google Play in the UK and every one of them has had the same issue:
The display has had a noticeably yellow but admittedly slight (possibly slightly brighter) tint on the bottom and left edges, while the right edge has been dull/dark.
This is specific because there are other and numerous reports of a yellow "tint" across the whole screen. This is not the whole screen, this is very clearly just the bottom third and left edge of the screen.
Some think that this is a "glue" issue that will resolve itself. Some think it won't get better. Some think that it's an issue they can live with. Some can't stand the lack of uniformity.
Well I can't stand the lack of uniformity because in my opinion, on a 4.7 inch screen, I find it distracting to be reading text on a solid background or white and the "white" or background colour changes as I read right to left or top to bottom. I consider a decent amount of uniformity to be a minimum requirement for devices which will be used in the way most of us use our phones and tablets. Manufacturers, seemingly, don't care at all except in the most extreme of cases. It looks like they are churning out whatever they can get away with. In all other aspects, the N4's screen is fantastic.
There's nothing anyone here can really do to help directly but it leads me to a question I haven't been able to find the answer to anywhere by Googling or searching other forums:
What is the cause of this lack of uniformity on these LCD panels? It seems to be LCD specific. As mentioned, some think it's "glue" but then others say not and in my experience the tint issues haven't gotten any better in the time I've had the devices that have passed through my hands.
I don't think it's the LED backlighting but could it be something to do with that?
Does anyone know, from a technical point of view why LCD panels are so prone to this issue with the yellow tints across *part* of the display. It's a very widespread thing as it's been noted on most of the iPhone range and a lot of other handsets too. Is there something inherently difficult for panel manufacturers (in the N4's case, LG) to do to make the panel evenly toned and lit? Surely it can't be that hard at this stage in the development of LCD tech once the manufacturing process is "calibrated" at the factory and underway? I assume these handsets are assembled by robots, not by hand. Is that right? Why is it so widespread? Is it a cost issue? Would I have a better chance of a quality panel by buying a more expensive handset? (Although I've seen many HTC One X's with the same problem - I did see one which was almost literally "perfect" in uniformity and brightness). I'd really appreciate any feedback on this. I know that because it's the "norm", sadly, the common response is to now "accept" the panels and handsets that are out there. There doesn't even seem to be a "higher end" manufacturer where high quality uniformity is more likely - or is there?
Anyone with a good/strong knowledge of LCD tech or the manufacturing process out there that can explain this?
Thanks!
***UPDATE***
I've now attached an illustration to show what I mean. ***It's exaggerated a bit*** to show the effect but illustrates the problem clearly.
Have you tried using a custom kernel to tweak the colors of the screen? The Nexus 4 is known for it's washed out colors so using a custom kernel like Trinity or Franco kernel allows you to tweak the color of the screen to your desire. Of course you will need an application to tweak the colors.
LG is known for light bleeding and or panel uniformity issues, I had to swap 4 LG tvs before I decided to go with Panasonic , my LG ips monitor that im typing on right now for my pc has light bleeding in some areas which results in low contrast. I saw about 13 different optimus g devices before I got the nexus 4 and the screens are beautiful with good contrast, punchy colors and good black levels with no light bleeding or weird tints while my nexus 4 has slight light bleeding right where the signal bar is located. I love this phone and its seems to get the " perfect " one you maybe have to swap a few times and to me the price kind of fits the quality of the phone but then I almost have enough spare cash to buy another one lol can't complain about that.
demorik said:
LG is known for light bleeding and or panel uniformity issues, I had to swap 4 LG tvs before I decided to go with Panasonic , my LG ips monitor that im typing on right now for my pc has light bleeding in some areas which results in low contrast. I saw about 13 different optimus g devices before I got the nexus 4 and the screens are beautiful with good contrast, punchy colors and good black levels with no light bleeding or weird tints while my nexus 4 has slight light bleeding right where the signal bar is located. I love this phone and its seems to get the " perfect " one you maybe have to swap a few times and to me the price kind of fits the quality of the phone but then I almost have enough spare cash to buy another one lol can't complain about that.
Click to expand...
Click to collapse
Thanks for the reply. I've heard elsewhere that LG specifically seems to have poor quality panel uniformity. I think LG panels are used by Apple who have had many, many reports of panel yellow "tint" issues on both their iPhone and iMac range. It seems to affect screens big or small. Having said that, HTC had similar problems and their panels were manufactured by Sony. I would *love* to know what's causing this or what is the reason for the yellow "tint" issue on part of the screen.
scream4cheese said:
Have you tried using a custom kernel to tweak the colors of the screen? The Nexus 4 is known for it's washed out colors so using a custom kernel like Trinity or Franco kernel allows you to tweak the color of the screen to your desire. Of course you will need an application to tweak the colors.
Click to expand...
Click to collapse
I have done all of that and with some success with all of the handsets I've had but because the tint affects only part of the screen in a sort of gradient - the calibration cannot fix it.
I'd much prefer a screen that had a yellow "tint" evenly across the whole screen then of course I could calibrate accordingly.
alsheron said:
I've had about 8 separate Nexus devices from Google Play in the UK and every one of them has had the same issue:
Click to expand...
Click to collapse
You've had 8 different Nexus 4's?
yellow patches is from the glue used in the optical lamination process, yellow tint is from the display calibration which is often used to reduce banding and gives more saturated/warm look to colors
if your device is affected by by visible yellow patches the only cure is to re-calibrate the display to reduce the effect and don't get the device too hot as it may increase it
DynamicRam said:
yellow patches is from the glue used in the optical lamination process
Click to expand...
Click to collapse
Not that I don't believe you, but could you link me to the source of this theory?
DynamicRam said:
yellow patches is from the glue used in the optical lamination process, yellow tint is from the display calibration which is often used to reduce banding and gives more saturated/warm look to colors
if your device is affected by by visible yellow patches the only cure is to re-calibrate the display to reduce the effect and don't get the device too hot as it may increase it
Click to expand...
Click to collapse
Sorry but this is not what my OP is about. I do not have a uniform tint and therefore it cannot be to do with "calibration" of some sort unless I am mistaken. Neither do I have "patches" or "spots". This is very specifically about a gradient yellow "tint" that only affects part of the screen and trying to find out the technical reason(s) for its prevalence in a wide range of LCD screens used in mobile phones and of course the Nexus 4 in particular. I've updated my original post to include an illustration of the effect I'm asking about. Thanks!
I am pretty sure its a hardware fault and i assumed you tried to return it otherwise there is nothing else you can do so i suggested calibration to reduce the effect
I had the same issue, then flashed custom ROM and it was fixed. Go figure :silly:
stevenhw8 said:
I had the same issue, then flashed custom ROM and it was fixed. Go figure :silly:
Click to expand...
Click to collapse
hi stevenhw8, can U give me name and link to download your custom ROM? thank you.

Screen replacement

Hi,
Dropping my phone was the worst thing that could happen with my phone.
I found someone who would do the screen replacement and after nearly two months he finally returned the phone two me.
At first glance it seemed ok but closer inspection have shown me that:
- the panel used was JDI instead of LGD so a japanese panel instead of the 'original' LG
- serious screen bleed contouring the whole screen
- highlights on the screen, points in the screen where I can clearly see the backlight being brighter than everywhere else
- luminosity is lower than the original.
The last two points are very annoying. I compared my phone with a phone displayed in a shop and I see that the screen on the shop's phone is brighter that mine, even without adaptive brightness and @ 100% luminosity.
Could this be due to different panel manufacturer (JDI instead of LGD)?
The screen bleed could be due to the screen being badly glued but I am not sure...
But the bright speckels are annoying also. In bright areas this is very much noticable, a white picture shows two small areas brighter which indicates to me that the back of the panel has something behind that 'pushes', hard to explain.
Anybody had similar issues or had his screen repaired?
You can see my issues in the attached screenshots...
laboratik said:
Hi,
Dropping my phone was the worst thing that could happen with my phone.
I found someone who would do the screen replacement and after nearly two months he finally returned the phone two me.
At first glance it seemed ok but closer inspection have shown me that:
- the panel used was JDI instead of LGD so a japanese panel instead of the 'original' LG
- serious screen bleed contouring the whole screen
- highlights on the screen, points in the screen where I can clearly see the backlight being brighter than everywhere else
- luminosity is lower than the original.
The last two points are very annoying. I compared my phone with a phone displayed in a shop and I see that the screen on the shop's phone is brighter that mine, even without adaptive brightness and @ 100% luminosity.
Could this be due to different panel manufacturer (JDI instead of LGD)?
The screen bleed could be due to the screen being badly glued but I am not sure...
But the bright speckels are annoying also. In bright areas this is very much noticable, a white picture shows two small areas brighter which indicates to me that the back of the panel has something behind that 'pushes', hard to explain.
Anybody had similar issues or had his screen repaired?
You can see my issues in the attached screenshots...
Click to expand...
Click to collapse
I don't think your issues is the panel type, i replaced mine and got a JDI from eBay. I don't notice any difference from my old one, which was not JDI. I would say you just got a poor screen. Not the fault of the installer either, i would try to get hold of the screen seller, or just accept the loss and replace it again.
Sent from my LG-LS980 using XDA Free mobile app
scottdanpor said:
I don't think your issues is the panel type, i replaced mine and got a JDI from eBay. I don't notice any difference from my old one, which was not JDI. I would say you just got a poor screen. Not the fault of the installer either, i would try to get hold of the screen seller, or just accept the loss and replace it again.
Sent from my LG-LS980 using XDA Free mobile app
Click to expand...
Click to collapse
I can agree that the panel type is not the culprit but the screen bleed is definitely the installers fault.
I am not very happy replacing it again as the total cost would mean that I could have bought a new phone for the same price...
My feeling is that the seller of the screen has delivered a used screen and damaged the silver back of the panel by removing it from the old device (the bright highlights could be from a prying tool used while recuperating the screen.). Too bad , lesson learned = do not drop the phone as the screen shatters very easily and when repairing, find a reliable repairsman...
Accept the loss seems to be the only option in this case...
Maybe I will have to disassemble/assemble the phone myself and do with with extra love and care and sense of detail....
laboratik said:
I can agree that the panel type is not the culprit but the screen bleed is definitely the installers fault.
I am not very happy replacing it again as the total cost would mean that I could have bought a new phone for the same price...
My feeling is that the seller of the screen has delivered a used screen and damaged the silver back of the panel by removing it from the old device (the bright highlights could be from a prying tool used while recuperating the screen.). Too bad , lesson learned = do not drop the phone as the screen shatters very easily and when repairing, find a reliable repairsman...
Accept the loss seems to be the only option in this case...
Maybe I will have to disassemble/assemble the phone myself and do with with extra love and care and sense of detail....
Click to expand...
Click to collapse
Since the digitizer comes glued to the glass I'm more inclined to blame the screen/seller than the installer. But you know the saying... "If you want it done right...". All the best on getting it sorted and working properly.

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