BOE screen issues - Huawei Mate 20 Pro Questions & Answers

I sent back an Mate 20 Pro because (with LG screen) I had intermittent data disconnection issues. I had no gluegate screen issues, the screen was fine. The replacement device has a BOE screen. In comparison to the LG screen, after a few days here are my observations:
- The screen has a greenish tint (not gluegate) when viewed from the side. View the screen at about 45 degree angle (left, right, top, bottom etc.) and the color changes.
- Brightness: the BOE screen I have seems less bright than the LG one.
- The screen also seems less sharp than the previous LG, I would describe it as a bit "grainy" or "noisy", not the pin sharp display you would expect at this resolution
- Low brightness: when the brightness slider is low (10% brightness or less), the grey text breaks up on a black background when scrolling. Here is how to reproduce the issue.
1. Go to Settings and select the BLACK background mode. All text is white or grey and the background is black.
2. Set the brightness slider to minimum
3. Select a submenu in settings (e.g. Battery) then go to a dark room (with brightness at minimum)
4. Scroll slowly up and down the screen in the Battery (or some other) settings menu
5. On my screen the light (white and grey) text breaks up into green/magenta components. When the scrolling stops the text is white again. It's like the screen can not keep up with the scrolling, can not refresh the pixels fast enough so the white text breaks up into various colours.
Anyone has experienced this issue on either an LG or BOE screen? Any feedback is welcome.
I am not pixel peeking. I noticed this behaviour while adjusting some of my settings on the new phone. I did not see this at the LG screen. Because my old phone has been taken back by the courier I can't do any parallel comparisons.
This screen is a BOE screen, serial number 18B08. on the latest 122 software version. Based on my subjective observation the LG screen was brighter and did not notice these low light issues (however I was not looking for it in all fairness). Update: now on 146 software update.
Any feedback is appreciated.
===============================
Update (9 Dec 2018)
I went to a local store and took some comparison pictures / videos between store units and my BOE screen Mate 20 Pro. See them below. All videos taken at MAXIMUM screen brightness on white background to compare the quality (max brightness and colour shift) of both screens.
Here are links to 2 Youtube sample videos:
https://youtu.be/t_BSsJi0f1o - My unit vs a O2 store demo unit
https://www.youtube.com/watch?v=AUPe-z5ArfI - My unit vs a Three store demo unit (verified with LG screen)
Some images also attached.

The green 99% of people report on LG displays is in completely unnatural conditions that would never occur in real life use. They use a grey background, turn the brightness down to 1 and see a tinted glow coming out of the curved part of the OLED display that isn't even part of the actual display area.
The fact that the BOE display is not as bright and smooth as the LG display has been reported by many owners and is also likely the reason there is less light bleed coming out of the curved edges when people use the same unnatural conditions--the BOE screen is natively less bright and powerful at every light level including 1. If you research exactly how AMOLED displays generate color you will understand what I am referring to.
Even though the LG display actually seems to be far superior to the BOE display in normal everyday use with better colors, contrast and pixel response Huawei will probably be using the inferior BOE displays going forward because of the hysteria of some users that believed the LG display was defective.
As far as I know the curved OLED display was used on the iPhone X but not on any Android phone before the Mate 20 Pro so doing the same unnatural display test with the curved Amoled on the Mate 20 Pro and the non-curved Amoled of any other Android phone is obviously not going to yield the same results. The light bleed only manifests where the curve in the Amoled is.
Huawei said this was normal but some people loudly insisted that it wasn't so now going forward everybody is going to get the markedly inferior BOE display.
AMOLED displays do degrade over time so it would be interesting to compare how the LG and BOE displays each hold up but since people are only interested in the newest phones that comparison probably won't happen.

Wow dude, you don't know what you are talking about...
The green is totally defective and can be seen in many normal conditions!
The fact that it's emphasized by grey screen doesn't mean it cannot be seen.
I now have a BOE screen and cannot be happier, colors look excellent compared with my Galaxy S9+
LG green screen was crap. And I'm not biased towards LG, I have a very nice OLED 4K tv at home.

jhs39 said:
The green 99% of people report on LG displays is in completely unnatural conditions that would never occur in real life use. They use a grey background, turn the brightness down to 1 and see a tinted glow coming out of the curved part of the OLED display that isn't even part of the actual display area.
The fact that the BOE display is not as bright and smooth as the LG display has been reported by many owners and is also likely the reason there is less light bleed coming out of the curved edges when people use the same unnatural conditions--the BOE screen is natively less bright and powerful at every light level including 1. If you research exactly how AMOLED displays generate color you will understand what I am referring to.
Even though the LG display actually seems to be far superior to the BOE display in normal everyday use with better colors, contrast and pixel response Huawei will probably be using the inferior BOE displays going forward because of the hysteria of some users that believed the LG display was defective.
As far as I know the curved OLED display was used on the iPhone X but not on any Android phone before the Mate 20 Pro so doing the same unnatural display test with the curved Amoled on the Mate 20 Pro and the non-curved Amoled of any other Android phone is obviously not going to yield the same results. The light bleed only manifests where the curve in the Amoled is.
Huawei said this was normal but some people loudly insisted that it wasn't so now going forward everybody is going to get the markedly inferior BOE display.
AMOLED displays do degrade over time so it would be interesting to compare how the LG and BOE displays each hold up but since people are only interested in the newest phones that comparison probably won't happen.
Click to expand...
Click to collapse
Hello,
Thank you for the elaborate answer.
I don't have a problem with the unevenness of light or bleeding but lower brightness and grainier screen are not OK in my opinion. When I first opened up the first unit with the LG screen, it struck me how better it was than my SONY Xperia XZ Premium's screen, both in terms of perceived sharpness and luminosity. As a first impression.
The BOE screen however, shows much grayer and overall of inferior quality in comparison to the Sony. Might have an inferior screen on this Mate 20 Pro, I don't know, that's why I was asking for feedback.
For this price and being a flagship device having only an "acceptable" quality screen is not acceptable. Having so many posts online and cases of green screens it's a good possibility that there is something ongoing with these screens.

jhs39 said:
The green 99% of people report on LG displays is in completely unnatural conditions that would never occur in real life use. They use a grey background, turn the brightness down to 1 and see a tinted glow coming out of the curved part of the OLED display that isn't even part of the actual display area.
The fact that the BOE display is not as bright and smooth as the LG display has been reported by many owners and is also likely the reason there is less light bleed coming out of the curved edges when people use the same unnatural conditions--the BOE screen is natively less bright and powerful at every light level including 1. If you research exactly how AMOLED displays generate color you will understand what I am referring to.
Even though the LG display actually seems to be far superior to the BOE display in normal everyday use with better colors, contrast and pixel response Huawei will probably be using the inferior BOE displays going forward because of the hysteria of some users that believed the LG display was defective.
As far as I know the curved OLED display was used on the iPhone X but not on any Android phone before the Mate 20 Pro so doing the same unnatural display test with the curved Amoled on the Mate 20 Pro and the non-curved Amoled of any other Android phone is obviously not going to yield the same results. The light bleed only manifests where the curve in the Amoled is.
Huawei said this was normal but some people loudly insisted that it wasn't so now going forward everybody is going to get the markedly inferior BOE display.
AMOLED displays do degrade over time so it would be interesting to compare how the LG and BOE displays each hold up but since people are only interested in the newest phones that comparison probably won't happen.
Click to expand...
Click to collapse
Funny, I was sitting in a dark room with the screen set to grey and on the lowest setting and I was thinking, what the **** am I doing??? When would actually be doing this?? Probably never. I think some people are looking so hard for something that they are starting to see things.
I'm not doubting the there probably are some faulty screens out there, I had one right at the start too. But I've had an LG screen for a while now and it kinda looks green round the edges in that unnatural way of grey screen and low light. But I find it 10 time better than the grey washed out screen of the BOE. I had to turn the BOE screen brightness right up if I wanted to read in bed and the auto brightness was unresponsive.
Normal everyday use of the LG screen is 10 time better and the colours are just more vivid. I think I'm going to stick with LG

I found myself on Spotify with a really distracting green uneven smear all over my screen.... That wasn't a unnatural situation.

jhs39 said:
The green 99% of people report on LG displays is in completely unnatural conditions that would never occur in real life use. They use a grey background, turn the brightness down to 1 and see a tinted glow coming out of the curved part of the OLED display that isn't even part of the actual display area.
The fact that the BOE display is not as bright and smooth as the LG display has been reported by many owners and is also likely the reason there is less light bleed coming out of the curved edges when people use the same unnatural conditions--the BOE screen is natively less bright and powerful at every light level including 1. If you research exactly how AMOLED displays generate color you will understand what I am referring to.
Even though the LG display actually seems to be far superior to the BOE display in normal everyday use with better colors, contrast and pixel response Huawei will probably be using the inferior BOE displays going forward because of the hysteria of some users that believed the LG display was defective.
As far as I know the curved OLED display was used on the iPhone X but not on any Android phone before the Mate 20 Pro so doing the same unnatural display test with the curved Amoled on the Mate 20 Pro and the non-curved Amoled of any other Android phone is obviously not going to yield the same results. The light bleed only manifests where the curve in the Amoled is.
Huawei said this was normal but some people loudly insisted that it wasn't so now going forward everybody is going to get the markedly inferior BOE display.
AMOLED displays do degrade over time so it would be interesting to compare how the LG and BOE displays each hold up but since people are only interested in the newest phones that comparison probably won't happen.
Click to expand...
Click to collapse
biggest pile of rubbish ive ever read in the nicest way possible. to dismiss other peoples experiences just because you havent seen it is rubbish. my friend used my phone in the car at night ( i was using it for sat nav, is that normal enough?) they went on the spotify app to change the song then asked me why is the bottom half of my screen green. if thats not an unusual use case then no one can use their phones at night?
---------- Post added at 02:14 AM ---------- Previous post was at 02:09 AM ----------
beta199 said:
I sent back an Mate 20 Pro because (with LG screen) I had intermittent data disconnection issues. I had no gluegate screen issues, the screen was fine. The replacement device has a BOE screen. In comparison to the LG screen, after a day here are my observations:
- The screen has a greenish tint (not gluegate) when viewed from the side. View the screen at about 45 degree angle (left, right, top, bottom etc.) and the color changes.
- Brightness: the BOE screen I have seems less bright than the LG one.
- The screen also seems less sharp than the previous LG, I would describe it as a bit "grainy" or "noisy", not the pin sharp display you would expect at this resolution
- Low brightness: when the brightness slider is low (10% brightness or less), the grey text breaks up on a black background when scrolling. Here is how to reproduce the issue.
1. Go to Settings and select the BLACK background mode. All text is white or grey and the background is black.
2. Set the brightness slider to minimum
3. Select a submenu in settings (e.g. Battery) then go to a dark room (with brightness at minimum)
4. Scroll slowly up and down the screen in the Battery (or some other) settings menu
5. On my screen the light (white and grey) text breaks up into green/magenta components. When the scrolling stops the text is white again. It's like the screen can not keep up with the scrolling, can not refresh the pixels fast enough so the white text breaks up into various colours.
Anyone has experienced this issue on either an LG or BOE screen? Any feedback is welcome.
I am not pixel peeking. I noticed this behaviour while adjusting some of my settings on the new phone. I did not see this at the LG screen. Because my old phone has been taken back by the courier I can't do any parallel comparisons.
This screen is a BOE screen, serial number 18B08. on the latest 122 software version. Based on my subjective observation the LG screen was brighter and did not notice these low light issues (however I was not looking for it in all fairness).
Any feedback is appreciated.
Click to expand...
Click to collapse
inn regards to this. the BOE screen seems to be less vivid if you had the LG phone before. however i had my S8 on standard or SRGB mode. (maybe it was called basic i cant remember) and to me the colours look fine. i cant say it looks less 'smooth' not sure what that means either and i think you hit the nail on the head. when you start to pixel peep youll see many flaws. even if they arent really there. if you look at the LG display as hard as you have looked at teh BOE, maybe you would have found something else. I know the whole display thing is annoying for the price but i took into account selling my s8 and selling the WAtch GT (which i am using at starting to like) into the price

I think low brightness usage of a screen is a valid scenario which should work properly without green issues. I am occasionally reading ebooks in the dark, at minimum or close to minimum brightness. I had a number of smart phones and they all worked fine with a pretty uniform screen. I am not looking for perfection, but low light performance is a valid usage scenario where smartphone screen have to deliver - especially top tier, expensive flagship models.

I have the LG screen and apart from the greenish tint on the curved sides when viewed in a dark room with grey background (low brightness), I really have no issues during the day when there is normal lighting. I've read several forums with other phone manufactures where this complaint seems to be common, clearly Huawei could have done better QC. For me at least this nuisance isn't enough to return the phone.

Hi The LG is very bad, did you see the anandtech review of the Mate 20 Pro
https://www.anandtech.com/show/13503/the-mate-20-mate-20-pro-review/7

enrique71 said:
I have the LG screen and apart from the greenish tint on the curved sides when viewed in a dark room with grey background (low brightness), I really have no issues during the day when there is normal lighting. I've read several forums with other phone manufactures where this complaint seems to be common, clearly Huawei could have done better QC. For me at least this nuisance isn't enough to return the phone.
Click to expand...
Click to collapse
That makes sense. For me the overall brightness and sharpness is important as I am doing a lot of work outside surveying buildings. This is what I am apparently seeing in my BOE screen, the screen seems to be greyer and less bright than the LG one. But again, it might be an issue with my screen only - that's why I am looking for others' feedback.

uso said:
Hi The LG is very bad, did you see the anandtech review of the Mate 20 Pro
https://www.anandtech.com/show/13503/the-mate-20-mate-20-pro-review/7
Click to expand...
Click to collapse
Thanks for sharing this review - it's so comprehensive and technical, without being too technical (if that makes sense).

On my 3rd phone with this being first BOE screen.
1st LG screen was utter crap, by the 2nd week at 50% brightness you could see the green around the edges on youtube videos etc... ( I would count that as most peoples use of a phone?)
2nd was much better but was still noticeable while using dark theme and dark backgrounds, which I do a lot. Main issue was I didn't want to wait for it to get worse like the first one.
3rd BOE - Much better screen. It is slightly less vivid but still plenty nice enough for me. Sharpness I have it set to FHD all the time and haven't noticed any issues at all. Only thing I did notice is there is a slight green tint viewed at certain angle, but pretty extreme angle which is unrealistic so doesn't bother me.

I don't think this is an issue that's specific to LG or BOE screens because I had this on my 2nd LG device. I thought it was because I was using YouTube vanced but obviously not. These screens are garbage.

I think OLED screens all have the problem to a certain degree. Just some are worse than others.
https://discussions.apple.com/thread/8146389

whoops1234 said:
Funny, I was sitting in a dark room with the screen set to grey and on the lowest setting and I was thinking, what the **** am I doing??? When would actually be doing this?? Probably never. I think some people are looking so hard for something that they are starting to see things.
I'm not doubting the there probably are some faulty screens out there, I had one right at the start too. But I've had an LG screen for a while now and it kinda looks green round the edges in that unnatural way of grey screen and low light. But I find it 10 time better than the grey washed out screen of the BOE. I had to turn the BOE screen brightness right up if I wanted to read in bed and the auto brightness was unresponsive.
Normal everyday use of the LG screen is 10 time better and the colours are just more vivid. I think I'm going to stick with LG
Click to expand...
Click to collapse
Sorry but you are dead wrong. This does not remain this way. The LG panel shows the green after a few days even on 50% brightness.
The BOE screen is exactly as bright, clear and sharp as the LG and I know this because I had them side by side.
Don't spread nonsense. LG screen TEN TIMES BETTER? Shame on you.
For your information, Huawei admitted to EE on the phone that all the LG panels were in an early batch, and faulty. Good luck getting help when your LG panel goes bad, and it will.

Jonathan-H said:
Sorry but you are dead wrong. This does not remain this way. The LG panel shows the green after a few days even on 50% brightness.
The BOE screen is exactly as bright, clear and sharp as the LG and I know this because I had them side by side.
Don't spread nonsense. LG screen TEN TIMES BETTER? Shame on you.
For your information, Huawei admitted to EE on the phone that all the LG panels were in an early batch, and faulty. Good luck getting help when your LG panel goes bad, and it will.
Click to expand...
Click to collapse
No need to take that tone. We're all adults here so please don't act like we're back at school. So shame on you!!
It was just my opinion. I have both of them next to each other and there is a difference, I even posted pictures on another thread showing the difference in colour. I'm also not the only person to notice. Plus I've had my LG screen for 3 weeks now and it hasn't got any worse.
I mean jeez all these people getting het up, when it comes down to it, its just a phone.

I have a BOE screen as a replacement for my (slightly) faulty LG screen.
I've had other LG & Samsung OLED (both P-OLED and AM-OLED) screens on phones as well as many LCD screens.
I can honestly say that the BOE screen I now have is at least as bright as *ANY* other OLED screen I've had and pretty much as bright as the SuperBright LCD on my LG G7 Thinq.
The resolution of the BOE screen is also pretty bloody good; certainly no worse than it was on my LG screen'd original Mate 20 Pro.
I don't see any light bleed; only the "usual" colour shift evident on pretty much any OLED screen when viewed at an angle; and for me this phone hardware-wise is now pretty much perfect.

jhs39 said:
The green 99% of people report on LG displays is in completely unnatural conditions that would never occur in real life use. They use a grey background, turn the brightness down to 1 and see a tinted glow coming out of the curved part of the OLED display that isn't even part of the actual display area.
The fact that the BOE display is not as bright and smooth as the LG display has been reported by many owners and is also likely the reason there is less light bleed coming out of the curved edges when people use the same unnatural conditions--the BOE screen is natively less bright and powerful at every light level including 1. If you research exactly how AMOLED displays generate color you will understand what I am referring to.
Even though the LG display actually seems to be far superior to the BOE display in normal everyday use with better colors, contrast and pixel response Huawei will probably be using the inferior BOE displays going forward because of the hysteria of some users that believed the LG display was defective.
As far as I know the curved OLED display was used on the iPhone X but not on any Android phone before the Mate 20 Pro so doing the same unnatural display test with the curved Amoled on the Mate 20 Pro and the non-curved Amoled of any other Android phone is obviously not going to yield the same results. The light bleed only manifests where the curve in the Amoled is.
Huawei said this was normal but some people loudly insisted that it wasn't so now going forward everybody is going to get the markedly inferior BOE display.
AMOLED displays do degrade over time so it would be interesting to compare how the LG and BOE displays each hold up but since people are only interested in the newest phones that comparison probably won't happen.
Click to expand...
Click to collapse
I'm sorry but you made so many mistakes in your assertion. First the LG Display is by no means superior. The BOE display uses the new Synaptics driver that is light years ahead of the Unkown LG driver. I have meanwhile in my family the possibility to test the LG Display directly with my BOE display. The only thing I mentioned was that the colors were a little more vibrant on the LG. After adjusting some parameters my BOE display looked almost identical to the LG. But without the green tint. And your claim the green tint is not that visible under normal circumstances is totally rubbish. On my first mate 20 pro the green was visible under all circumstances. Not from the start, the issue progressed. I must admit Huawei handled my issue very good. I got from the start a very good BOE panel. And believe me if the green tint was anything normal, Huawei would never have exchanged the devices that easy.

My BOE Screen is great, clear, sharp nice and bright. Except for when the Power Genius app kicks in for Gmail, Chrome and Facebook.

Related

Display not TRUE BLACK ?

Hello,
Im Using Amoled Smartphones since the Galaxy (i7500). They all were always showing at 100% Brightness for Black parts of a picture a true Black like the Display is OFF.
If you put the Brightness to 100% and go to an complete Dark Room and open an Black Picture you see some Gray/Yellow Tint on the Screen. You can compare this good by locking the phone to see the Screen OFF and than unlock it to view the Black Picture again. You should see a huge difference. Hope to hear from your experiences.
I've seen that already on the S1 when abusing it a a nightstand clock.
Best guess I've heard is that the (AMO)LED screen leaks some luminosity to other pixels in the background which is then visible as a very faint glow.
However I rather believe that the AMOLED are not truely off but rather get some leak voltage and thus have a very-very-very faint glow (like one photon per second xD )
That would explain the black spots most people seem to mind on AMOLED when on minimum brightness with a black screen; they are truely off or without insufficient leak voltagage (LED's requie a minimum voltage to work).
AMOLED production is somewhat complicated (very thin layer of silver as a power source and a control-layer) so I wouldn't be surprised if the above is true.
Nothing is perfect, especially not a rather new technology.
What else did you expect from a backlit display.
jbadboy2007 said:
What else did you expect from a backlit display.
Click to expand...
Click to collapse
It's not backlit is the point.
Correct me if im wrong here but amoled is, by design, not backlit.
Sent from my LG-P920 using xda premium
Yeah so I was wondering why it does this little/ hard noticeable yellow/gray tint on a dark room...
There is no Backlight... Unfortunely i Sold my Galaxy S2 so I cant compare it.. But im Sure it wasnt like this
I have this on my gsiii and also on the Gnote... I think is due to the pentile screen
I had this on my Fascinate but realized it wasn't a big issue. Definitely more noticeable on my Gnex but it also has more pixels so that could be why you see more light. I wouldn't call it a problem because the majority of the time it's absolutely unnoticeable. Each pixel has so have some sort of voltage to be ready to react to changes. Turning off/on completely each time light is needed might waste battery.
P.S. I'm noob at displays but that's my theory.
Zacisblack said:
I had this on my Fascinate but realized it wasn't a big issue. Definitely more noticeable on my Gnex but it also has more pixels so that could be why you see more light. I wouldn't call it a problem because the majority of the time it's absolutely unnoticeable. Each pixel has so have some sort of voltage to be ready to react to changes. Turning off/on completely each time light is needed might waste battery.
P.S. I'm noob at displays but that's my theory.
Click to expand...
Click to collapse
I was curious about this issue as well. It's my understanding that OLEDs do not produce any light in their inactive state.
Regarding your theory, I wonder if it's similar to plasma displays. Even though plasmas are capable of true black (they do not use a backlight) The individual plasma cells have better response times if they aren't fully discharged on blacks. So they have a faint glow that comes from the low power they are using to keep the pixel charged up and ready to go when a color change is needed.
This actually costs a little power though, rather than saving it. So if thats what they are doing, it is for screen quality reasons so that movies and other things look better.
Did some Googling and I couldn't find much information, but there is talk of delivering pre-charge voltage to the OLED pixels to improve response times. So it could be that they are indeed similar to plasma displays in that respect: Capable of true black, but the benefits of not using true black are too good to pass up.
Are you SURE the picture is actually true black? By that i mean pure 100% black in an uncompressed image? If not then you cant expect the phone to display true black. A JPEG of black may not be enough.
My screen it totally off when displaying true black.
I can confirm the screen showing a faint glow on S3 with a true black screen.
Use Firefox with Fullscreen extension (Chrome and the default browser don't seem to have fullscreen mode yet) and go to http://d4f.pf-control.de/black.html
That's rendered on the phone so we can expect it to be the blackest black an app can produce, however in a (very) dark room you'll see a very faint glow coming from the screen and you'll be able to see the black spots (truely black) that people keep complaining about.
The theory about it being a precharge voltage does indeed sound plausible since LED's have a certain reaction time which unfortunately cannot be compensated by e.g. Overdrive as is used in LCD screens.
Note that the S3's "black" is still far better than any LCD.
No mine is still jet black, no light at all.
Go to a COMPLETELY dark room and make sure the screen is actually turned on when on the website (not timed out).
Then take a long-exposure photograph of your phone (still make sure the screen is turned ON!).
I don't have a long exposure camera, but the room is completely dark and my eyes have adjusted, there is no light.
All sgs3 ( as sgs2) screens emit a very week glow on a black pictures ( with the screen on )
Sent from my GT-I9300 using xda premium
It would seem to me that the 'ink spots' many have are not overly dark spots at all, they are what the screen should be. My screen emits no visible light when displaying a true black image, at least nothing my eyes can see, even at the edge of my vision field where light cell are most sensitive. My screen is on maximum brightness.
My screen has no patches, no streaks, no spots, no pink or excessively blue tint. I guess i have a screen thats as near to perfect as they get.
yes there is very faint glow indeed making the screen a bit greyish instead of pitch black
Excuse me if I am being naive but where is real life use would this ever be a negative impact?
jfenton57 said:
Excuse me if I am being naive but where is real life use would this ever be a negative impact?
Click to expand...
Click to collapse
no negative impact, but still raises a question "why so?"
jfenton57 said:
Excuse me if I am being naive but where is real life use would this ever be a negative impact?
Click to expand...
Click to collapse
I don't think anyone is trying to paint it as an issue that needs to be resolved. It's more of an odd technical mystery rather than a real problem. The blacks are still extremely deep on an AMOLED, just like with Plasma it puts LCD to shame in that department.

Green tint to screen?

Not sure where to ask this, so here goes. Picked up a Z Play for my wife and it's great. Then picked up a Z for myself and while it looks and runs great, there seems to be a definite green tint to the screen when viewed off-center. And I don't mean 30-40 degrees off, but as slight as 5-10 degree off center, in any direction and it has a definite green tint, regardless of brightness setting. Previous AMOLED phones for either of us never had issues until extreme angles, and her Z Play is far better, not turning green til about 40-50 degrees, which is what I would expect.
Is this common or an issue? It's only been a few days, so I can go change it if it's a known issue of any kind. I guess I can also go compare it to display phones.
Mine doesn't appear to have this issue, perhaps a slightly noticeable change when 40° off but not at 5/10.
supacrazyguy42 said:
Mine doesn't appear to have this issue, perhaps a slightly noticeable change when 40° off but not at 5/10.
Click to expand...
Click to collapse
+1
Me neither, nothing remarkable happening when tilting it in either direction.
When the Moto Razr XT910 was new, there were many reports of varying panel quality problems, such as strong green or yellow tints
They did get new phones when they returned them, as it was a quality issue, could be the same thing now.
If I'm not mistaken, those with lots of green had field/cloud faults when viewing a black image in a dark room at full backlight, as they failed to reach zero brightness.
It was described as the pixels leaking electrons to surrounding pixels.
Viewing angles on the Z is worse than my old Moto X 2014 for sure, but it's probably due to the smaller pixels.
Nothing beats the old HTC One M7 though, that thing never faded, but it had an IPS screen.
However, in standard colour mode, it's heavily yellowish to reddish (some would call it warm colour temp)
In dynamic it's closer to white, but with a strong nudge to the blue spectrum.
Can't wait to get the custom colour temperature setting with Android 7.0!

BOE screen Inferior. Anyone have a good one?

I know this is not the place to discuss general issues with the phone but I signed up as these forums have the most and best discussions on the issues. I am on my 3rd Mate 20 Pro as the first two LG ones had the screen bleed issue.
Now I have a BOE screen but it looks absolute trash. It lacks brightness and contrast and has a pink tint towards the top and a green tint at the bottom when you view white pages. Also when I watch videos I get awful colour banding etc on gradients. Also I get odd tints etc whenever I look at the phone from almost any angle. I am so so so disappointed.
I'm just curious if anyone has a BOE screen that is as good as the original LG ones (minus screen bleed obviously) as I don't want to send this back if I'm going to get the same crappy screen back. I'm so frustrated and will never buy a Huawei product again.
I have a BOE Seems really great, nice vibrant colours, whites and Blacks are really good. Only issue I have is if you turn off the adaptive brightness the powergenie dims most Google and Facebook apps. But the last few days I have left the adaptive brightness on auto and it seems to not dim as much. I tend to push the brightness up a little bit though.
Something I have noticed, not related to the screen, is I occasionally hear a little click in the sound, I'm not sure what that is. Unless big brother is activating my microphone. ?
Sent from my HUAWEI LYA-L09 using XDA Labs
I must admit, I do notice the colour issue mostly in Chrome but it doesn't seem to be exclusive to it. Plus the colour banding issue is really bad on mine. For instance, at 1:28 on this video (https:// youtu.be/tO01J-M3g0U) the sky has awful banding and also an actual flickering. I guess I have a bad display. I just wonder if they will see it or just send it back. It's definetly there and anyone used to good screens would see it however my aging parents said there was nothing wrong with it so it isn't obvious to anyone not used to an OLED screen and I imagine they could easily say they see no issues. Ahhhh.
No issues with my BOE screen. If you secretly swapped it with a (good) LG I wouldn't notice.
Sent from my LYA-L29 using Tapatalk
BOE is the best much much better then LG super
boe screens are better imo, this lottery with LG is awful
Cheers guys. I must just have a defect BOE. It definitely doesn't look right at all.
Nem9h88 said:
Cheers guys. I must just have a defect BOE. It definitely doesn't look right at all.
Click to expand...
Click to collapse
That was my BOE mate 20 pro. Build date 18B05.
djBarren said:
That was my BOE mate 20 pro. Build date 18B05.
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Click to collapse
Ooooooh interestingly that is exactly what mine looks like but reversed and guess what... Same build number. Did you get yours replaced with Huawei or a retailer?
Got my BOE 18B23, looks great - you might have a faulty one.
Looks like a faulty BOE screen...I examined mine obsessively within my 2 weeks return period and found no issues. It MIGHT be a bit less bright that LG, but I am comparing it with Youtube videos and Interweb pics, so it's a false call.
Happy so far.
Definitely looks like you have a defective BOE display. I got mine today (18B23) and it's great, at least compared to my old V30 it's much better.
Nem9h88 said:
Ooooooh interestingly that is exactly what mine looks like but reversed and guess what... Same build number. Did you get yours replaced with Huawei or a retailer?
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Click to collapse
I received a refund after an email to the Carphone Warehouse CEO. As the IMEI I had was from Huawei not CPW. The CPW have been absolutely fantastic to me.
I went yesterday hell bent on a pixel 3xl. But I was drawn toward the Mate 20 Pro. After much discussion with the manager I ended up walking out with a Mate 20 Pro, 18B26 and it absolutely perfect. It's what the phone should have been from the get go. Uniform, responsive, fast fingerprint scanner, sharp and vibrant.
djBarren said:
I received a refund after an email to the Carphone Warehouse CEO. As the IMEI I had was from Huawei not CPW. The CPW have been absolutely fantastic to me.
I went yesterday hell bent on a pixel 3xl. But I was drawn toward the Mate 20 Pro. After much discussion with the manager I ended up walking out with a Mate 20 Pro, 18B26 and it absolutely perfect. It's what the phone should have been from the get go. Uniform, responsive, fast fingerprint scanner, sharp and vibrant.
Click to expand...
Click to collapse
Give me this ceo email address, please. Having problems with cpw
lawtq said:
Give me this ceo email address, please. Having problems with cpw
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Click to collapse
I'll DM it to you.
Nem9h88 said:
I know this is not the place to discuss general issues with the phone but I signed up as these forums have the most and best discussions on the issues. I am on my 3rd Mate 20 Pro as the first two LG ones had the screen bleed issue.
Now I have a BOE screen but it looks absolute trash. It lacks brightness and contrast and has a pink tint towards the top and a green tint at the bottom when you view white pages. Also when I watch videos I get awful colour banding etc on gradients. Also I get odd tints etc whenever I look at the phone from almost any angle. I am so so so disappointed.
I'm just curious if anyone has a BOE screen that is as good as the original LG ones (minus screen bleed obviously) as I don't want to send this back if I'm going to get the same crappy screen back. I'm so frustrated and will never buy a Huawei product again.
Click to expand...
Click to collapse
My BOE is perfect. Actually nicer than my Note 9 and Pixel 3. LG was no better.
Nem9h88 said:
I know this is not the place to discuss general issues with the phone but I signed up as these forums have the most and best discussions on the issues. I am on my 3rd Mate 20 Pro as the first two LG ones had the screen bleed issue.
Now I have a BOE screen but it looks absolute trash. It lacks brightness and contrast and has a pink tint towards the top and a green tint at the bottom when you view white pages. Also when I watch videos I get awful colour banding etc on gradients. Also I get odd tints etc whenever I look at the phone from almost any angle. I am so so so disappointed.
I'm just curious if anyone has a BOE screen that is as good as the original LG ones (minus screen bleed obviously) as I don't want to send this back if I'm going to get the same crappy screen back. I'm so frustrated and will never buy a Huawei product again.
Click to expand...
Click to collapse
I have EXACTLY the same problem as you. This is also my 3rd Mate 20 Pro. First was LG, with the green glow issue, that was visible only in dark room with brightness set to minimum and grey background (I am still mad why I returned it, because it was better than BOE) . My second device had a BOE screen with very very bad screen uniformity at low brightness. And now my third Mate has also BOE screen with the same problem as yours. Lower half of the display has a green tint and the upper half has a pink tint. I dont mind if the screen has a tint, because that can be "repaired" by tweaking color temperature. But this is super annoying. When you scroll on sites with white background you can see how it goes from green to pink tint. Otherwise screen is great and therefore I also have a concern about the next device that I might get as a replacement, as this is clearly a lottery now. I am probably going to wait until like a month and then try to get a replacement (I hope they will admit something is wrong with the display) . It is not really affecting the day-to-day usage of the device, it is just my eyes and heart is hurting when looking at the display. Maybe I am just too picky, but I expect from the device which costs 1k€ to be worthy of its price in every department, especially display.
mtvzbnck said:
I have EXACTLY the same problem as you. This is also my 3rd Mate 20 Pro. First was LG, with the green glow issue, that was visible only in dark room with brightness set to minimum and grey background (I am still mad why I returned it, because it was better than BOE) . My second device had a BOE screen with very very bad screen uniformity at low brightness. And now my third Mate has also BOE screen with the same problem as yours. Lower half of the display has a green tint and the upper half has a pink tint. I dont mind if the screen has a tint, because that can be "repaired" by tweaking color temperature. But this is super annoying. When you scroll on sites with white background you can see how it goes from green to pink tint. Otherwise screen is great and therefore I also have a concern about the next device that I might get as a replacement, as this is clearly a lottery now. I am probably going to wait until like a month and then try to get a replacement (I hope they will admit something is wrong with the display) . It is not really affecting the day-to-day usage of the device, it is just my eyes and heart is hurting when looking at the display. Maybe I am just too picky, but I expect from the device which costs 1k€ to be worthy of its price in every department, especially display.
Click to expand...
Click to collapse
This complete echos my device and my sentiments about the whole thing. For the money this device should not have the issues. It is a fact. This is my first Huawei device and I'm almost certain it will now be my last.
I also don't know which device I would buy, instead of Mate 20 Pro. Once you get used to this IR facial recognition, fingerprint scanner becomes almost useless. It works in every conditions and it's sometimes even too fast. I've been using Mate 9 for the last 2 years and it was super fast from the first to the last day. I got used to the EMUI, gestures are awesome! Oh, and I must not forget about the wide angle lens, it's great. I was thinking about the Note 9, the best display, performance wise also very good (not on pair with Kirin 980 though), camera also very good, fingerprint scanner on the back with facial recognition that is significantly slower and on top of that it's still Samsung, which means that it will get very slow in just a year from buying it (it's also almost 100€ more in my country). Another alternative is OnePlus 6T, display is good, performance it's excellent, software is the best right now, the cameras are on pair with the Note 9, but it lacks wireless charging, IP rating, facial recognition depends only on camera (it doesn't work in the dark) and I can't get it from my carrier. Mate 20 Pro is also the King when it comes to the battery life! So from my point of view, there are no real alternatives to the Mate 20 Pro and I really don't know what to do. Part of me wants to get a replacement ASAP (I am scared of that also), but the other part wants to get something else, because this is going nowhere.
I think a lot of the XDA reports about the LG screens being defective were phony and were made to create mischief and discourage people from buying this phone.
When the gluegate reports started coming in on XDA easily 70% were from XDA accounts that were new and were opened specifically to report supposedly defective screens. How could anybody not have found that suspicious?
The supposed screen bleed issue is a joke. People were comparing the folded OLED on the Mate 20 Pro with Samsung phone screens that don't have folded OLED displays. Obviously the results are going to be different because they are not the same kind of displays. It is 100% normal to have bleed on the edges with a folded OLED display and it is also normal for the edges of the display to look lighter when doing the "uniformity test" that people were told proved the displays were defective.
If you go into the display settings it takes less than 10 seconds to make it appear that your screen has "gone hulk" and take a screenshot.
I have a UK Mate 20 Pro that was preordered before launch. It has an LG display from the initial batch that multiple XDA members claim were 100% defective. The display looks great and is not defective in any way.
A few weeks ago I purchased a 256GB global version and planned to upgrade. But that phone had a BOE display that was very inferior to the LG one so I ended up returning it. The BOE screen had washed out colors and was noticibly less bright than the LG display which is the reason people don't see screen bleed at the edges. Pixel response was also slower than the LG display.
A lot of people who participated in a "screen lottery" and kept returning M20P phones until they got one with a BOE display ultimately found that those displays had inferior color and brightness to the LG display.
I'm pretty certain there was nothing wrong with the phone you returned. Unfortunately I have seen 3 M20P phones with BOE displays and all 3 had washed out colors compared to the LG display.

Ghosting question BOE screen

Now I have returned my LG screen and got a BOE screen on my Mate 20 pro. I just want to preface this thread that I love my phone. I chose to get a replacement instead of refund. I like the BOE screen overall. I don't have any issues with brightness or uniformity, no defects or dead pixels. But I did notice some ghosting. Or Lag of the pixel from black to grey.
I also noticed that the BOE screen has some GHOSTING. If you have a BLACK background and scroll up/down with grey windows. The grey will momentarily be purple lagged until the pixels catch up. NOT trying to spark some defect whitch hunt, just an observation. And one I've only noticed it once in real world use.
Just found with a quick search, one that shows the purple lag.
https://www.reddit.com/r/GalaxyS6/comments/34t923/is_your_screen_defective_test_for_yourself_by/
Just scroll.
Tested on my wife's Note 9 and there is just a hairline lag of purple that resolves quicker. almost imperceivable. Instead of half the grey square that is slower to catch up.
I guess my question is does everyone have it? Didn't try on my LG screen phone. Anyone here have one willing to scroll and let is know if it also has the lagging pixels? Or any other phones readily available to test and report back?
Mine has it. Mines a boe screen. It was the same with my other LG screens too. I noticed this a while back on the android central app in dark mode at night while scrolling through the threads on there, the phone was on low brightness due to me reading at night in a dark room. Quite annoying.
Sent from my [device_name] using XDA-Developers Legacy app
LG screen was worse for this than the BOE one From my experience.
I think this is normal oled behavior but it is more visible on some screens than others
I had the same before with my mate 10 pro
But now not visible with my iphone x
And also i think that the oled screens are slower with very low brightness and there refreshe speeds up with brightness
jadaress1 said:
Mine has it. Mines a boe screen. It was the same with my other LG screens too. I noticed this a while back on the android central app in dark mode at night while scrolling through the threads on there, the phone was on low brightness due to me reading at night in a dark room. Quite annoying.
Click to expand...
Click to collapse
I noticed this too on my BOE screen. Could not verify on my previous LG screen which had been returned.
Can anyone with GOOD LG screens confirm whether this occurs with LG screens too and to what extent? Many thanks.
I have an LG display and have experienced no ghosting when scrolling in low light. Briefly had one with BOE display that I returned--there was noticable ghosting on that phone in low light but autobrightness was also poor--that display was probably defective.
Mohamad Gahed said:
I think this is normal oled behavior but it is more visible on some screens than others
I had the same before with my mate 10 pro
But now not visible with my iphone x
And also i think that the oled screens are slower with very low brightness and there refreshe speeds up with brightness
Click to expand...
Click to collapse
I think you're correct about the brightness correlation. Thanks for pointing that out!

General The Display issue Thread....(color fade, flickering, tints)

Hey guys,
I havent seen a thread related to display issues. In 2 german Forums I found threads about various issues. From Color fade, to overall greenish tint or flickering screens.
Sadly I am very picky with display stuff and my Display isnt perfect either. I mostly use relatively low brigthness settings (around 30-40%) and on dark mode especially the settings menu has a color fade from dark grey to dark blue. This cant be seen on any other color.
Its easy to see in a dark room, the brighter the room the lesser you will notice.
To easier check: use telegram, with its blueish theme its definitely way stronger fading there...
For a phone thats 649€ in germany thats unacceptable for me. My P5 has a slight warmish but perfectly even colored display and thats what I expect from a P6.
What about you? Can anyone check their display if thats a common issue?
Hi,
i have the same issue, also a device from germany.
Even when booting when everything is white, I always have multiple changes between white and blue in the display.
I'm at work, I try to take a picture when I get home.
Please do, Id really be intersted. Sadly we cant do anything about it...
Anybody have the green ish tint on a black screen issue? Seen a few of those floating around as well...
Similar issues with my screen, also from Germany.
My first OLED screen had been with the Galaxy Note 1 and I hated it for its issues. Always bought devices with LCD screens afterwards.
The Pixel 6 is my first OLED phone since and it is having pretty much the same issues my Note had 10 years ago
Great phone so far (Android is still a bit buggy), but the display is quite a disappointment for me personally, at least for brightness levels below ~50%...
Is it just me or are most of these issues regarding the display coming from Germany? Please can people state what country the device was purchased from if they have this issue
Wow @Abnovitas thats really really bad. Sadly till now everyone seems to be from Germany...
I just finished chatting with Google's support.
They are going to replace the phone, but I'm still waiting for their email with instructions.
But first they walked me through some superficial settings (disabling Dark Mode and some accessibility stuff, like Color Inversion...) and then tried to talk it off as a normal property of OLED displays, which I didn't accept to this extent. But hey, that's probably just Google's policy.
Let's see if this was just bad luck in the OLED lottery.
For me its too difficult to take a picture with dark screen. The color change is slightly less than the picture from @man1acc
But i have problems with white color, it is light grey and i have green stripes on white, this is also very very difficult to make a picture.
Here you can see it a bit, but in real life it is much stronger
This is how my display looks like. Quite disappointing, Google has the same problems for years. But the phone itself is very well built, so maybe I will keep it. Bought the phone in Germany.
I have some rainbow effect which is mostly noticeable on white backgrounds. Hard to capture but found it is quite noticeable with an external light source. In this case my monitor. Anyone else have this or more importantly for a RMA, don't have it?
Pixel 6 when on a black background the right side of the display has a green tint shadow effect kinda worrying as it's not present on the left side and seems to only appear on darker backgrounds like when pull notification tab down or in a app (like xda) with black background very noticeable , or is this just standard now for Oled displays it's not the first phone I've noticed this over the years just curious if any pixel 6 owners see similar or should I get it exchange ? Added pic not sure if shows that well though
DoobyDroid said:
Pixel 6 when on a black background the right side of the display has a green tint shadow effect kinda worrying as it's not present on the left side and seems to only appear on darker backgrounds like when pull notification tab down or in a app (like xda) with black background very noticeable , or is this just standard now for Oled displays it's not the first phone I've noticed this over the years just curious if any pixel 6 owners see similar or should I get it exchange ? Added pic not sure if shows that well though View attachment 5444907
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Click to collapse
Not normal. Each pixel is controlled individually.
It maybe hardware or firmware.
Sounds like the display control matrix wasn't designed properly or is defective.
Your screenshot isn't showing it so neither should the display!
blackhawk said:
...Your screenshot isn't showing it so neither should the display!
Click to expand...
Click to collapse
Unfortunately not true. If it's an issue with the display, a screenshot should never show it. But it can be visible when a picture of it is taken.
My Pixel 6 (right) was bought first day from the Google Store. I'm in the USA. It has a very strong dirty red tint at the bottom and a garish green at the top. Easily visible at 60-70% brightness and lower. Here it is compared to my Pixel 4a (left), shot on my 3a. Haven't had uniformity issues this bad since my OG Pixel (which got replaced).
Waited to chat with a support rep for an hour, chatted for another hour, and have an RMA device ordered and on the way.
Maybe are cross to dark side lol
That was a joke id never cross to the dark side lol and tint only seems visible when in certain dark mode apps and not actually navigating around the phone xda app is worse lol so don't think hardware issue tbh
MichRT said:
Unfortunately not true. If it's an issue with the display, a screenshot should never show it. But it can be visible when a picture of it is taken.
My Pixel 6 (right) was bought first day from the Google Store. I'm in the USA. It has a very strong dirty red tint at the bottom and a garish green at the top. Easily visible at 60-70% brightness and lower. Here it is compared to my Pixel 4a (left), shot on my 3a. Haven't had uniformity issues this bad since my OG Pixel (which got replaced).
Waited to chat with a support rep for an hour, chatted for another hour, and have an RMA device ordered and on the way.
Click to expand...
Click to collapse
Lol, read what I said again
At any rate... that's a dud.
Just for giggles and kicks, see if lowering the refresh rate effects that.
blackhawk said:
Lol, read what I said again
Click to expand...
Click to collapse
You're right, I misunderstood my bad
MichRT said:
You're right, I misunderstood my bad
Click to expand...
Click to collapse
My bad too, it wasn't worded as concise as it could have been.
who of you all has the problem with the green rainbow effect on a white background?

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