Develop Bugs

Backlight bleed / uniformity issues

I have noticed some slight flaws with my HTC One X
Firstly, when the backlight is on maximum (which happens when you first boot-up the phone) and shows a black screen, I can see some backlight bleeding at the bottom. It looks a bit greenish in one corner and also a bit further along the bottom.
Also, on a full white screen, the bottom is a bit more yellow than the rest of the image. This can be seen on the mail application (or gmail) for example.
I noticed that my applying slight pressure to the casing, that I can reduce the backlight bleed a bit. It also seems to reducing after a few heat-up / cool-down cycles. However the slight uniformity issue from top to bottom doesn't seem to be changing.
Has anyone else noticed this? I must emphasise it is slight, and that the backlight bleed is near invisible if the display is on auto-brightness and you are in a normally lit room.

jonstatt said:
I have noticed some slight flaws with my HTC One X
Firstly, when the backlight is on maximum (which happens when you first boot-up the phone) and shows a black screen, I can see some backlight bleeding at the bottom. It looks a bit greenish in one corner and also a bit further along the bottom.
Also, on a full white screen, the bottom is a bit more yellow than the rest of the image. This can be seen on the mail application (or gmail) for example.
I noticed that my applying slight pressure to the casing, that I can reduce the backlight bleed a bit. It also seems to reducing after a few heat-up / cool-down cycles. However the slight uniformity issue from top to bottom doesn't seem to be changing.
Has anyone else noticed this? I must emphasise it is slight, and that the backlight bleed is near invisible if the display is on auto-brightness and you are in a normally lit room.
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Click to collapse
Dude the below backlight bleeding is from the LEDs of the buttons
Same thing with DHD and O2X...

xmoo said:
Dude the below backlight bleeding is from the LEDs of the buttons
Same thing with DHD and O2X...
Click to expand...
Click to collapse
Yeah I have seen what you mean in previous handsets. But in this case it really is the screen. When you boot the phone up, it goes black on full brightness for a few seconds without the LEDs for the buttons

jonstatt said:
Yeah I have seen what you mean in previous handsets. But in this case it really is the screen. When you boot the phone up, it goes black on full brightness for a few seconds without the LEDs for the buttons
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Click to collapse
I checked it with a pure black background, same I used for my Galaxy S2.
I had 3 spots below, and when the leds went out I had no spots at all.

I have now checked 3 other HTC One X handsets, and they are all practically identical in terms of uniformity on an all white screen. They are all more yellow towards the bottom of the screen. That doesn't mean every One X handset is like that, but clearly there isn't much point in me swapping it out.
Funnily enough I also had that with the Evo 3D handset as well although it was even more obvious on that one.

These kinds of imperfections seems a price of having a laminated screen ie: glue, iPhone4/4s and iPad3 have similar habbits

Mine has about 6 tiny little lights on the bottom of the display...this is not normal. At least I hope not. They are always on so they can't be related to he touch button?

jonstatt said:
Firstly, when the backlight is on maximum (which happens when you first boot-up the phone) and shows a black screen
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Click to collapse
Do you have a carrier phone? When mine boots up it's 10K lumens of white to the point it'll clearly light up a dark room. That and the HTC strum at max volume drive me crazy. Never reboot your phone in a crowd unless you want to be stared at.

Plh36 said:
Mine has about 6 tiny little lights on the bottom of the display...this is not normal. At least I hope not. They are always on so they can't be related to he touch button?
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Same here...walked out of the store and right back in...second phone has same problem but screen is better overall...really annoying seeing those lights at the bottom of the screen though...it is only noticeable on lighter color screens...
Anyone else got this??

jonstatt said:
I have noticed some slight flaws with my HTC One X......
Also, on a full white screen, the bottom is a bit more yellow than the rest of the image. This can be seen on the mail application (or gmail) for example.
Click to expand...
Click to collapse
I also have this issue. Is this normal, or do most One X's not have this problem/issue/feature?

Screen light blee.

Hi guys,
Do you have any light bleed on your screen? I have a few spots on the bottom edge of the screen.
Thank you,
Martin

malutki said:
Hi guys,
Do you have any light bleed on your screen? I have a few spots on the bottom edge of the screen.
Thank you,
Martin
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Click to collapse
Yea, That's Samsung for you. I was lucky not to have any on my device. And from the looks of it, it isn't too common on the Note 2014.
The Nexus 10 though. Wow. Everyone had it. It wasn't a question of if you have it or not, it was about how bad. Not to mention the blacks were blue.
I'd exchange it if I were you, no point in getting stuck with that.

Nope, no blee here.

californiarailroader said:
Nope, no blee here.
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Click to collapse
I will exchange mine. Hopefully the new one will have no bleeD

Mine just came today and with my normal brightness setting there is only the slightest hint of bleed from one of the four LED spots on the bottom of the screen.
My panel seems perfect so far so it doesn't seem likely I will exchange it over this.
I'm pretty impressed, but I have to say the build quality is not up to par with my IPad and not what I would expect at this price. Samsung has a long way to go to produce really premium products.

30Seconds said:
Mine just came today and with my normal brightness setting there is only the slightest hint of bleed from one of the four LED spots on the bottom of the screen.
My panel seems perfect so far so it doesn't seem likely I will exchange it over this.
I'm pretty impressed, but I have to say the build quality is not up to par with my IPad and not what I would expect at this price. Samsung has a long way to go to produce really premium products.
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I would like to see one iPad without a light bleed. So far a few I saw (including 2 which belong to my wife) had some light bleed as well. What is wrong with build quality of your unit? Mine, except for light bleed, is very good.

I think my tablet has very very slight bleed at the bottom of the screen near both capacitive buttons, I won't return it because it's barely noticeable BUT does this mean the whole screen has an issue and also could it deteriorate over more usage or anything like that.
Apologies if these are idiotic questions but this "screen bleed" is a completely new subject for me lol.
malutki said:
I will exchange mine. Hopefully the new one will have no bleeD
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How was your exchanged tablet?

I think my light bleed is actually getting worse and I am thinking about exchanging it now that there is more stock available.
One of the spots on the bottom is about 1 cm, and while viewing movies it is a nuisance.
Does anyone have a perfect screen?

30Seconds said:
I think my light bleed is actually getting worse and I am thinking about exchanging it now that there is more stock available.
One of the spots on the bottom is about 1 cm, and while viewing movies it is a nuisance.
Does anyone have a perfect screen?
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Click to collapse
This was my worry, my screen has slight light bleed at the bottom nothing too noticeable but then again don't all LCD screens have some form of light bleed

Writting from my third Note 10.1 2014. The first one had a huge dust particle under the screen and bad bleeding. The second one had a bearable bleeding but at least 7 bad pixels (3 dead ones right in the middle of the screen and 4 stuck). This Note 10.1 has almost non- existent bleeding and just one little dust particle (invisible if you are not looking for it) but has yellow tint along the bottom edge (over the buttons) and at the bottom left corner, so when you are reading in portrait mode over white background it is impossible not to get distracted as you start one line with black over white and you finish it with black over yellow.
I truly love this device but I am getting tired of all of this. My third replacement is on its way, though I seriously doubt it is going to be a good one.
iiSo say we all!! from my SM- P600

Just noticed the blee today while watching netflix...does it actually get worse? I can live with it now but I would send it in for a replacement if it's gonna deteriorate over time

I'm on my third device and 2 of them have had lightbleed. I can't say for the first one though because the screen was dead on arrival. I think everyone should expect some lightbleed on any LCD screen. If your tablet is perfect in every other aspect other than a little screen bleeding then I wouldn't exchange it. There are too many things that can be messed up other than the screen such as S-pen detection, loose speaker grills, dead pixels, dead screens, faulty bluetooth, and the list goes on...

I have a 32bg black model and my GF has a white one, both bought at BB at about the same time. There is quite a lot of difference between the screens, mine has quite a bit of light bleed on the upper right and all across the bottom - you can see the individual leds - hers does not. However my screen is quite a bit brighter and much more "white," in side by side comparison hers looks a bit yellow. All of the screen settings are exactly the same. Last night we had them both on for 3+ hours of internet and point-and-click gaming, I had 80% power remaining while she had 56%, checking hers I noticed the brightness was at 100 while mine was around 25%. She says it needs to be that high to see the game and it does seem much darker/mudier than mine. Thinking these must have different panels because they look so different. So, light bleed or dim yellow battery eating screen, are these our options?

The pictures were taken with an iPhone 5S (flash off). The tablet's brightness was maxed and as you can see, the room was dark. Does this degree of backlight bleed warrant a return (mainly concerned of the tablet's longevity. Thoughts appreciated.

manhattan212 said:
The pictures were taken with an iPhone 5S (flash off). The tablet's brightness was maxed and as you can see, the room was dark. Does this degree of backlight bleed warrant a return (mainly concerned of the tablet's longevity. Thoughts appreciated.
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You need to take a picture with a plain black background, only then can we give you our thoughts.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Geordie Affy said:
You need to take a picture with a plain black background, only then can we give you our thoughts.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.
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Click to collapse
manhattan212 said:
The pictures were taken with an iPhone 5S (flash off). The tablet's brightness was maxed and as you can see, the room was dark. Does this degree of backlight bleed warrant a return (mainly concerned of the tablet's longevity. Thoughts appreciated.
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Click to collapse
here it is. Same exact conditions. Thanks for your opinion, in advance.

The picture isnt very clear as its difficult to take a picture of properly but if the points I have highlighted are the only bit of screen light bleed you have then yeah its normal, I have pretty much identical bleed points too as do most people on here.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Geordie Affy said:
The picture isnt very clear as its difficult to take a picture of properly but if the points I have highlighted are the only bit of screen light bleed you have then yeah its normal, I have pretty much identical bleed points too as do most people on here.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.
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Click to collapse
Thanks, I appreciate the prompt response.
And I'm inclined to agree with your observation. In particular, those are indeed the points of bleeding.
What do you make of the top corners being so bright, though? It's not like the points you've highlighted, but rather large areas -maybe this is where the light comes from?
In all honesty, I'm more concerned about future degradation than anything else. If the device is going to remain as is, I don't mind the current state of bleeding. But if this is an indication that the device will be noticeably worse in a few months down the road, then I'd like to take it back to the shop and exchange it.
Again, thanks for your time and opinion.
Much appreciated -and thanked.

manhattan212 said:
Thanks, I appreciate the prompt response.
And I'm inclined to agree with your observation. In particular, those are indeed the points of bleeding.
What do you make of the top corners being so bright, though? It's not like the points you've highlighted, but rather large areas -maybe this is where the light comes from?
In all honesty, I'm more concerned about future degradation than anything else. If the device is going to remain as is, I don't mind the current state of bleeding. But if this is an indication that the device will be noticeably worse in a few months down the road, then I'd like to take it back to the shop and exchange it.
Again, thanks for your time and opinion.
Much appreciated -and thanked.
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Click to collapse
No problem mate.
From what I understand Lightbleed comes from the points it's visable - it's just that for whatever reason the device doesn't block the light passing through hence the brighter areas along the bottom. And about degradation from what I have read it doesn't get worse or better just stays like that.
It depends on you if you want to give it back and keep trying to get a bleedless device but as some form of Lightbleed is common on LCD's it will be tough. I returned one due to high Lightbleed which was visable in a lit room and the brightness on low - that's bad Lightbleed and I couldn't accept that so I got the one I have now and the Lightbleed for me is more than acceptable. Plus the other problem is if your device is perfect apart from the bit of Lightbleed your next one could have other issues LOL.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Geordie Affy said:
Plus the other problem is if your device is perfect apart from the bit of Lightbleed your next one could have other issues LOL
Click to expand...
Click to collapse
And on that note, I'll be sticking with this one.

[Q] screen problems

I just bought this tablet and everything is going well, but ... my question is if the pictures herein may be cause for concern:
1. when the screen is in blaco or light colors. (black or dark colored this fault disappears).
2. with 0% brightness, 50% the fault disappears.
3. always appear in the bottom of the screen (right side photo1, photo 2 and 3 bottom).
thank you very much.

jorrg said:
I just bought this tablet and everything is going well, but ... my question is if the pictures herein may be cause for concern:
1. when the screen is in blaco or light colors. (black or dark colored this fault disappears).
2. with 0% brightness, 50% the fault disappears.
3. always appear in the bottom of the screen (right side photo1, photo 2 and 3 bottom).
thank you very much.
Click to expand...
Click to collapse
I'm pretty sure they all do it. Must be an edge lit screen. I'm not bothered as 0% brightness isn't a realistic usage condition.
I think mine is improving anyway. Wondered if it was caused by that part of the screen normally being black ( nav buttons) in portrait mode.
All screens have problems , e.g. amoled has better blacks but uneven brightness, horrible colour and loses brightness over time.
If it makes you feel better, the iPad mini retinas suffer more screen problems and they cost twice as much ( backlight bleed and poor colour gamut)

Yes I have had 2 units and this is something I have seen this device suffers from, my second unit is an improvement over the first one, but still has backlighting issues.

Yeah, mine has this funny issue where if you squeeze it really hard, the screen makes funny colors. I'm on my 18th unit and they all do this.
>.>

mustbepbs said:
Yeah, mine has this funny issue where if you squeeze it really hard, the screen makes funny colors. I'm on my 18th unit and they all do this.
>.>
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Click to collapse
That made me laugh just little bit out loud.

gman16000 said:
That made me laugh just little bit out loud.
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It's funny because it's true. People complain about anything and everything. Who uses their tablet at 0% brightness anyway? No device is perfect as they're manufactured.

HTC One M8 backlight bleeding problem?

I got my HTC One recently (last Friday) and it was a perfect phone! no problems whatsoever...
Yesterday i was playing with the phone with a colourful background wallpaper from HTC and i noticed light bleeding from the top (hold it in a angle and you can see a light bar shine through like this:
http://forums.androidcentral.com/at...een-issues-uploadfromtaptalk1367129491252.jpg
It isn't that big of a deal but for a phone that costs over 500 euro's here in my country.. you expect that it is build properly and backlight bleeding on a phone at this price!?
I compared 4 HTC's in the store and they all got the same problem

GPe dims the edges of the screen, so it's harder to notice if it's there. I haven't ran sense in a while so I can't tell either, but I can't notice this light bar effect on my phone either. So it may just be that batch of phones.
Sent from my HTC One_M8 using Tapatalk

Got it in in my bottom right corner... very minimal though

Wow, that's massively anal lol.

mine was the whole top screen.. but it doesn't matter, that's just HTC right..? They're known for the screen bleeding, haha..

I've been having this issue on the bottom of the display. It makes the nav buttons look funny and full-screen content is washed out.

dperez200 said:
I've been having this issue on the bottom of the display. It makes the nav buttons look funny and full-screen content is washed out.
Click to expand...
Click to collapse
Here's mine. Italian H3g branded:

That light bleed above is probably a bit excessive bit you guys have to realize that all LCD screens are going to have some light bleed. You can usually make it less noticeable by using a lower brightness setting. If you are really anal about the slightest amount of bleed you should really be looking into phones with AMOLED displays. That said, if the light bleed is washing out the nav bar at reasonable brightness settings you should try to get it fixed or replaced.
My M8 has some bleed on the top left corner at normal brightness and I'll notice it across the entire top if I go full brightness in a dark room. At normal brightness it doesn't bother me at all.
Sent from my XT1060 using Tapatalk

IPS Screen/Backlight issue/bleed!

This being my first smartphone, I apologise if this question has been asked before and for generally being a noob, but hoping a recent answer would clarify the situation for me.
I know IPS screens for any type of device/product are prone to backlight bleeding, the reason I have a VA pc monitor. I did consider an amoled screen, but for the price, £300 and my intended uses, the G4 was the best option presently.
Without another phone to test it against and no photographic evidence for you guys my description is the best I can do. There are two points on the screen where I believe there is some bleeding present, but this is still subjective. The first is the along the top edge, where there is a very thin lighter strip of possible bleed, maybe an issue with the panel, where the info bar is normally present, that is lighter than then rest of the screen. I can notice it whilst watching full screen video, not always, when the bar is absent. The second is more minor, there are two spots on the bottom of the panel, either side and just above the LG logo where there is some bleed leakage, but minor.
I guess I'm asking is this common and worth the risk of replacing, or are the odds are I might get the same again?
Thanks.

Some light bleed top and bottom is going to be somewhat inevitable. On my phone it is noticeable if you look for it, but not too bad.
I have another issue with the panel itself not being uniform. The top of the panel (near the earpiece) is all bright and possibly on the touch of the yellow side of white. Lower down the screen towards the bottom left it goes towards pink.
Is yours OK in this regard? It is most noticeable with the phone in landscape reading forums like this.
I have a replacement phone arriving tomorrow to compare it to.

lozzauk said:
Some light bleed top and bottom is going to be somewhat inevitable. On my phone it is noticeable if you look for it, but not too bad.
I have another issue with the panel itself not being uniform. The top of the panel (near the earpiece) is all bright and possibly on the touch of the yellow side of white. Lower down the screen towards the bottom left it goes towards pink.
Is yours OK in this regard? It is most noticeable with the phone in landscape reading forums like this.
I have a replacement phone arriving tomorrow to compare it to.
Click to expand...
Click to collapse
The uniformity on mine seems okay - using your suggested test on 50% brightness on this webpage, I have none of the other issues you mentioned (pink or yellowing), apart from that bright strip along the entire top edge under the front facing camera that is brighter and slightly washes out any colour/images on that edge.

mstrmind5 said:
The uniformity on mine seems okay - using your suggested test on 50% brightness on this webpage, I have none of the other issues you mentioned (pink or yellowing), apart from that bright strip along the entire top edge under the front facing camera that is brighter and slightly washes out any colour/images on that edge.
Click to expand...
Click to collapse
Thanks. Another place it is noticeable on mine is in Gmail or any notification on the notification bar in landscape. Almost as if one side of the screen is a different colour to the other although you won't notice in photos or videos. Only on white/grey backgrounds.
It sounds like all you are seeing is the backlight bleeding through, this will happen to some extent on all LCD's. I tried screen test on the play store and on the black background test I can see a faint bar of greyish light right at the top of the screen. Unless you go AMOLED I think any replacement phone is going to look the same.

lozzauk said:
Thanks. Another place it is noticeable on mine is in Gmail or any notification on the notification bar in landscape. Almost as if one side of the screen is a different colour to the other although you won't notice in photos or videos. Only on white/grey backgrounds.
It sounds like all you are seeing is the backlight bleeding through, this will happen to some extent on all LCD's. I tried screen test on the play store and on the black background test I can see a faint bar of greyish light right at the top of the screen. Unless you go AMOLED I think any replacement phone is going to look the same.
Click to expand...
Click to collapse
Hopefully a replacment will be an improvement for you.
I'll see a few days how this bleed works out for me. Would get an amoled, but the prices plus a lack of microsd card limit any options for me. Since testing lcd monitors, always try to avoid them now because of the panel issues that are inherent to this tech process.
Good luck on any replacment.

mstrmind5 said:
Hopefully a replacment will be an improvement for you.
I'll see a few days how this bleed works out for me. Would get an amoled, but the prices plus a lack of microsd card limit any options for me. Since testing lcd monitors, always try to avoid them now because of the panel issues that are inherent to this tech process.
Good luck on any replacment.
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Click to collapse
There's been a few good deals on the Galaxy S6 (around £325 unlocked) but all the reports of poor signal puts me off (and of course there's no micro SD). The G4 seems very strong in this regard, only phone I've ever had that works in a few of the blackspots round here (all other phones report no service) Some reviews even mention that it is a bit deaf.
AMOLED isn't without its own issues though.

lozzauk said:
There's been a few good deals on the Galaxy S6 (around £325 unlocked) but all the reports of poor signal puts me off (and of course there's no micro SD). The G4 seems very strong in this regard, only phone I've ever had that works in a few of the blackspots round here (all other phones report no service) Some reviews even mention that it is a bit deaf.
AMOLED isn't without its own issues though.
Click to expand...
Click to collapse
All true, I've heard complaints about screen burn in on with amoled screens, some mentioned in the reviews of the Nexus 6P.

mstrmind5 said:
All true, I've heard complaints about screen burn in on with amoled screens, some mentioned in the reviews of the Nexus 6P.
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I don't think screen burn is as bad as it used to be. I had pretty bad screen burn pretty quickly on a Galaxy Nexus.
Here's my LG G4, can you see the pink in that? i.imgur.com/YjmtPtT.jpg
Sorry can't post links yet. Very poor quality image, taken on my work phone.

lozzauk said:
I don't think screen burn is as bad as it used to be. I had pretty bad screen burn pretty quickly on a Galaxy Nexus.
Here's my LG G4, can you see the pink in that? i.imgur.com/YjmtPtT.jpg
Sorry can't post links yet. Very poor quality image, taken on my work phone.
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Yes, definitely around the middle-right-lower portion, pinkish presence even in that picture. You still within the retailer warranty/return period? If so, don't hesitate to return it.

mstrmind5 said:
Yes, definitely around the middle-right-lower portion, pinkish presence even in that picture. You still within the retailer warranty/return period? If so, don't hesitate to return it.
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Click to collapse
It's not that obvious in real life, looks worse in the picture to be honest but I still can't live with it. It'll be going back when the replacement arrives tomorrow. Hopefully the replacement is fine otherwise I won't know what phone to get to replace it with. I can't get over how good the signal is now on it.

lozzauk said:
It's not that obvious in real life, looks worse in the picture to be honest but I still can't live with it. It'll be going back when the replacement arrives tomorrow. Hopefully the replacement is fine otherwise I won't know what phone to get to replace it with. I can't get over how good the signal is now on it.
Click to expand...
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Hope it works out for you, good luck!

mstrmind5 said:
Hope it works out for you, good luck!
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Replacement is way better. It's definitely a keeper. Has the slight 'light bleed' that you mentioned in your OP but the panel is at least completely uniform.

lozzauk said:
Replacement is way better. It's definitely a keeper. Has the slight 'light bleed' that you mentioned in your OP but the panel is at least completely uniform.
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Click to collapse
I'm glad it's worked out for you.