[Q] Blacklight visible from screen edges - One (M7) Q&A, Help & Troubleshooting

Anyone else experiencing visible blacklight from the screen edges? I have a very pronounced strip of blacklight coming from my right hand side when viewing bright content from a slight angle. Compared to the other side, it looks like a defect.

Pictures below
Sent from my HTC One using xda app-developers app

It`s totally normal the led`s are not on the back, but on the side of the screen and a light guide channels the light across the screen, this is what happens on every lcd screen, the word back-light is an misnomer.
EDIT: so the white led`s are at the right side of the screen and light goes across the screen to the left side, that is why the light does not show on the left side as much.
But the light should not be excessive., if it is get it replaced.
John.

Yeah. I know that this is how edge led lit LCD's work. But does every H1 owner have this clearly visible strip along one edge?
I can see it to a much lesser extent on my father's H1.
My old HOX does not have this at all. The HOX screen even looks better as it seems like it is floating on the glass surface!
Sent from my HTC One using xda app-developers app

I have check my One five times for dead pixels and for backlight leakage and i saw nothing.
I just checked for backlight leakage again using lcdtest at full brightness though all the colors, and mine is very very slight, really nothing at all
Yours is quite bad, if it`s bothering you get an exchange, but you dont know what you will get.
EDIT : I had a HOX and the display was perfect, but after 2-3 days i had a yellow patch show up, and i returned it and got an S3 instead.
john.

Tinderbox (UK) said:
I have check my One five times for dead pixels and for backlight leakage and i saw nothing.
I just checked for backlight leakage again using lcdtest at full brightness though all the colors, and mine is very very slight, really nothing at all
Yours is quite bad, if it`s bothering you get an exchange, but you dont know what you will get.
EDIT : I had a HOX and the display was perfect, but after 2-3 days i had a yellow patch show up, and i returned it and got an S3 instead.
john.
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Click to collapse
Thanks. Anyone else care to check their screens? I have the opportunity to send it in for a repair, but unsure if I want to be phoneless the next few weeks...

Related

[Q] URGENT HELP~~~Are These Dead Pixels???

Hi Guys,
After hearing so much problems with the Note screen, I had another good look of mine tonight and found these weird looking white lines/dots at the bottom left of my screen.
Are these dead pixels or stuff underneath the screen?
HELP Please.....might have to get an exchange with handtec...so much hassles....
Those look like stuck pixels to me.
Sent from my ADR6425LVW using xda premium
You have taken a pic with the default scratch guard on just remove and slightly clean the screen and see if it goes away, but most probably its 2 dead pixels, mine 1st one had 1. Quality issues with samsung !
eallan said:
Those look like stuck pixels to me.
Sent from my ADR6425LVW using xda premium
Click to expand...
Click to collapse
What are Stuck Pixels?
ankydu said:
You have taken a pic with the default scratch guard on just remove and slightly clean the screen and see if it goes away, but most probably its 2 dead pixels, mine 1st one had 1. Quality issues with samsung !
Click to expand...
Click to collapse
I'm pretty sure it's not between the screen and the default protector....where did you buy yours from?
Seriously...I'm very disappointed with Samsung now....I mean, I have heard many people having problems with their screens, but never thought I would get one of them defected ones....
Looks like dead/stuck pixels I'm afraid.
Can you get a macro shot? It's kind of hard to tell without a closer view. When I've had stuck/dead pixels in the past, they've always been very discrete, tiny dots without any haze or blur, which it looks like yours has. I also wonder if it's something to do with the screen protection film. When you do a macro shot will you lift it and clean the screen?
Here....I have lifted up the screen protector....I didn't take off the screen protector was because maybe if I didn't handtec might exchange me the phone quicker....but what the heck...I need to be sure anyways...so here are the pictures.
Man.....so much trouble for this phone....very disappointed with the build quality of the screen now....
Now I will have to wait for a while to get my exchanged new phone ....
Any ideas how long it might take? I read on handtec that if the item is returned after 10 days...it will go under warranty and so does that mean they won't exchange my phone straight away??? Anyone got any experience with them??
maxh said:
Can you get a macro shot? It's kind of hard to tell without a closer view. When I've had stuck/dead pixels in the past, they've always been very discrete, tiny dots without any haze or blur, which it looks like yours has. I also wonder if it's something to do with the screen protection film. When you do a macro shot will you lift it and clean the screen?
Click to expand...
Click to collapse
nuh...I have tried to count them...there are a least 4 dots plus a line....very strange....they are also bright green instead of being white.....can't see them with the black background....
Shows you how bad of quality the phone I got....
I am very surprised I have not noticed them before.
Just found out online...there is a difference between stuck and dead pixels, and apparently stuck pixels can possibly be fixed yourself...might give it a try....
nuh...none of the apps seem to work
Been using JScreenFix for the phone for about half a day....just flashing the screen.....
I think the pixels have gotten a bit darker......don't know if it's my eyes playing tricks on me or not....but will continue to flash the screen for the rest of the day and then check it again tonight....hopefully then will be gone
The thing I don't really get is why the green dots (more than 3 of them) would only appear on Green, White and Grey backgrounds, and not appear on the Red, Blue and Black Backgrounds.....Anyone got any ideas?
because every colour of the spectrum uses green except for red, blue and some combination of red blue
black is when the screen is off
DMax99 said:
Been using JScreenFix for the phone for about half a day....just flashing the screen.....
The thing I don't really get is why the green dots (more than 3 of them) would only appear on Green, White and Grey backgrounds, and not appear on the Red, Blue and Black Backgrounds.....Anyone got any ideas?
Click to expand...
Click to collapse
Hi there. I just bought the Note few days ago and I can confirm that I have the EXACT problem as yours. Except mine is just a dot. It's like a pixel that seems to be the only brighter pixel when the screen displays full green, white or grey background (specifically used the LCD test *#0*# & Burn-In Tester Pro app).
I assume that it is a stuck or a hot pixel simply because.. it lights up. Unlike dead pixel is like.. a dead bulb/pixel (Assumptions. HEHE.)
Actually on the day that I bought the Galaxy Note, I was really careful. I even dialed the *#0*# LCD TEST at the shop to look out for screen defects. It was FLAWLESS. So I bought it. And I have this habit to look out for defects even after purchase, so I always go to the LCD Test and Burn-In Tester Pro app to check, and is still perfect.
Not until, last night, I dialed *#0*# and hit "Black (Vibrate)" with the intention to check for the "blemishes/blobs" in a totally dark room. It was only apparent after my eyes had adjusted to the darkness and I do see the not so obvious blobs. So after noticing that, it didn't bother me so I happily watched an Blu-Ray quality video (Despicable Me) and that's when I noticed the BRIGHT pixel which I assume it to be a STUCK/HOT pixel. I hope it is just a stuck pixel which hopefully can be fixed over time. Don't know about hot pixels..
Right now I'm playing a Full HD video of a downloaded YouTube video called Pixel Fix, on loop, with Video Brightness set to full. My instinct says to try it out but i do know that after awhile, since it's an AMOLED technology, colors could be darker over time as the pixels slowly 'burn-out'.
AND if it doesn't work, I might try to turn off the phone and leave it somewhere really cool/chilled. And switch it on after awhile when it reaches room temperature. I read it somewhere that it works to remove stuck pixels. They put their phones in a fridge in a wrapping and they said it worked. I forgot though where I read it from.
Oh, it's this one --> http://forum.xda-developers.com/showthread.php?p=21025093
Someone managed to fix a dead pixel. Hmm, but it's a phone with an LCD screen. Nyeh.
Good luck to us. Man, it was only few days ago when I bought the Note. *sniffs*
Seems quiet here. Seems like not many people have or aware of this bright spot defect.
But I found this which seems to concern about the matter. http://www.patentgenius.com/patent/7955151.html
I guess it gives some idea of what it really is. Cheers.
And I am gonna let this 'problem' go this time cos it's so small but I do hope that it won't get any worse. Or if it fixes itself that would be a miracle
Sent from my GT-N7000 using Tapatalk

Light bleed !!

Im very picky so first I notice a tiny chip in the surrounding metal and I can feel it by hand, but I thought oh well this is ok if the screen is perfect. but then when I turned the brightness to max, I noticed light bleed at the upper corner. It's also noticeable at 50%. RMA asap.. shame I just got it today, the replacement could take up to 3-5 weeks. Actually I ordered this for my bro who is oversea so I need to get the replacement before the last week of january for my uncle to bring it oversea to him, and this makes me worried if it takes till february. I don't wanna send a defected one to my bro and he's really looking forward to this.
IB4TL
This is the extent of my light bleed (pic below).
I've decided to keep it regardless; I don't invest much time looking at a blank screen when using my phone but if your brother does, godspeed and good luck.
ADJack said:
This is the extent of my light bleed (pic below).
I've decided to keep it regardless; I don't invest much time looking at a blank screen when using my phone but if your brother does, godspeed and good luck.
Click to expand...
Click to collapse
I have 3 noticeable light bleeds all on top. Nothing like the poster above me. But I'm definitely keeping mine.
Sent from my Nexus 4 using Tapatalk 2
Turn any LCD to full brightness and you get it, the only reason you don't see it from the media is they all have auto brightness on which solely exists to hide this IMO..
If it bothers you then use OLED.
The so called amazing Retina screens Apple have used have the same issue when you turn it up full brightness....
ADJack said:
This is the extent of my light bleed (pic below).
I've decided to keep it regardless; I don't invest much time looking at a blank screen when using my phone but if your brother does, godspeed and good luck.
Click to expand...
Click to collapse
Wao... actually mine is better than this (only 1 at the top right corner). But consider this is a phone ..light bleed is not acceptable whatsoever. On a tablet it might be ok. I can keep this N4 till I het the replacement. Hopefully the replacement will be better.
slannmage said:
Turn any LCD to full brightness and you get it, the only reason you don't see it from the media is they all have auto brightness on which solely exists to hide this IMO..
If it bothers you then use OLED.
The so called amazing Retina screens Apple have used have the same issue when you turn it up full brightness....
Click to expand...
Click to collapse
You might be right... I have a S3 and there's zero light bleed on every unit ive seen (3 total) since its amoled. Ive never owned a lcd phone so I dont know. But if this is a common issue for lcd screen then im ok with that. I just dont wanna buy a defected one.
slannmage said:
Turn any LCD to full brightness and you get it, the only reason you don't see it from the media is they all have auto brightness on which solely exists to hide this IMO..
If it bothers you then use OLED.
The so called amazing Retina screens Apple have used have the same issue when you turn it up full brightness....
Click to expand...
Click to collapse
Auto brightness exists to save battery and increase brightness only when necessary, not hide light bleed
I find auto brightness to be perfectly acceptable on my nexus 4 (way better than gnex) and notice no light bleed . only time I notice it is on the boot screen
Sent from my Nexus 4 using Tapatalk 2
I have similar light bleed on my screen but I never have my phone on full brightness and at auto I notice no light bleed so I am content with that. No other issues with the phone so will not be RMA it just incase I get a phone back with other problems.
ADJack said:
This is the extent of my light bleed (pic below).
I've decided to keep it regardless; I don't invest much time looking at a blank screen when using my phone but if your brother does, godspeed and good luck.
Click to expand...
Click to collapse
Yea, mine is a little less than that and im keeping it. The world is not gonna end if u have this. My gs2 had more and never notice it unless i want it to see it.
Sent from my Nexus 4 using xda app-developers app
lol.. will lg ever learn? this happened on the g2x (but worse).
I have a little on the top right of my screen. I do notice it, especially since I'm coming from an AMOLED screen. This phone is easy better, and I don't want to RMA it and chance getting one with a big problem. But my Nexus 7 uses an LCD a well, and there is absolutely no light bleed. My HTC ReZound had no light bleed, and neither did my LG Spectrum... both of which use 720p LCD panels, though slightly smaller ones. So, I'm a little frustrated. But, it's still the best phone I've ever used
Sent from my Nexus 4 using xda premium
stratax said:
lol.. will lg ever learn? this happened on the g2x (but worse).
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Click to collapse
Lol i was about to say the same thing ..the g2x was a triiiip
Sent from my Nexus 4 using xda app-developers app
rookiegenius said:
You might be right... I have a S3 and there's zero light bleed on every unit ive seen (3 total) since its amoled. Ive never owned a lcd phone so I dont know. But if this is a common issue for lcd screen then im ok with that. I just dont wanna buy a defected one.
Click to expand...
Click to collapse
any amoled cannot have light bleeding because the technology works differently.
LCD screens have a light behind a liquid display the display cannot emit light and requires an alternative light source to be behind it to shine through so think of it as a sandwich (backlight) / LCD / (glass)
ideally there should be material that prevents most of the light from escaping around the LCD itself however its not a 100% seal hence you get light on the edges; small devices like phones its more noticeable cause the light does not need to travel as far making the issue seem worse. generally this is a normal part of LCD technology however if it is EXTREME you should RMA some light bleeding is normal extreme light bleed is not.
AMOLED Does not have a back light so there is no external light source that can leak out around the screen itself instead the individual pixels emit the light hence AMOLED will never have light bleeding.
so if you have a little light bleed dont RMA you might get something worse and yours is most likely fine; your just complaining about a normal and acceptable flaw in LCD tech.
I've owned 3 different n4's and they all had light bleed. Noticed all had them in the right top corner, with one unit having more bleed at the bottom left. Don't rma it unless it's pretty bad

Light leak spot on my z3c display

In my lower half of the screen I have a bright spot visible only on light background. My device is just a few days old. Anyone else encountered this? Should I worry about it?
catalinbudusan said:
In my lower half of the screen I have a bright spot visible only on light background. My device is just a few days old. Anyone else encountered this? Should I worry about it?
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Click to collapse
Sorry this might seem silly, but have you checked that the lens is clean? Or maybe there is a bit of dust that has gotten inside the casing and onto the lens? I guess if it's bright enough, then you should be able to have it fixed on warranty.
The lens is part of the camera and has nothing to do with the screen. The screens are backlit by a source of light and mine has a bleed spot. I've seen this before on laptops too.
I think I have it too, left side, a little lower then the middle of the screen. It shows better in the brightest screen setting but it's still pretty discreet. I wouldn't worry about it.
talk.sonymobiledotcom/t5/Xperia-Z3-Compact/Lighter-spot-on-screen/m-p/855751
So, I sent the unit back and got a replacement. It was pretty annoying to me as I was constanlty distracted by the bright spot. The carrier (Orange Romania) was very cool about it and sent the replacement ahead to make the switch at my house so I wouldn't have to send it in, wait for them to verify the fault, sent a replacemet in a week or so and be left without a <propper> phone . Very pleased and so far I can't identify any faults.
I received my device today and after playing with it for a few hours, I noticed a light blob on the top-right side of the screen. Such a shame
Hopefully I'll get a replacement asap.
I have a similar spot, but it is in the right bottom corner. These spot seem to appear near the buttons. My theory is that by bending the phone something from the inside of the phone pushes against the display and creates the spots.
mine is from the left edge, thumb size. It's visible on dark background. Sony mobile displays are pure crap, the worst I've seen on any smartphone. Never buy Sony again!

[Q] Is the right side of the screen a little darker?

I just got my Nexus 6 today and not sure if my eyes are playing tricks on me or not. I can see a discoloration of white colors when the brightness is turned down, and if there is a white background the right side of the screen looks slightly darker than the right side.
Just checking to see if this is just my screen or did they intend a slight difference there.
The right side of this guy's screen was a bit darker
http://forum.xda-developers.com/nexus-6/help/defective-screen-nexus-6-t2946346
impala454 said:
The right side of this guy's screen was a bit darker
http://forum.xda-developers.com/nexus-6/help/defective-screen-nexus-6-t2946346
Click to expand...
Click to collapse
haha I just came to point that out!
This seems to be a common issue with AMOLED displays.
I went to the tmobile store to get a nano sim card and the nexus 6 display unit had the exact same issue.
erica griffin mentions the same issue with her note 4 at around the 20min mark.
https://www.youtube.com/watch?v=-OyNWrQJzMY&list=UUB2527zGV3A0Km_quJiUaeQ&spfreload=10
You can exchange your phone, but there's no guarantee you'll get a better display.
I would just live with it if its not too bad as this is just a characteristic of AMOLED screens.
It's not bad, I can only notice it with a white background and when the brightness is lowered. With color it looks fine.
I seen the other thread, my screen still works just the color looks a little off.
Sent from my Nexus 5 using XDA Free mobile app

Light bleed

Does anyone get any inconsistent light bleed at the bottom of the screen, I know light bleed is normal in current screen technology, i'm just curious, top and left/right side looks fine on my unit, it's just the bottom, I will not return my unit as it isn't realy consider a defect.
kms108 said:
Does anyone get any inconsistent light bleed at the bottom of the screen, I know light bleed is normal in current screen technology, i'm just curious, top and left/right side looks fine on my unit, it's just the bottom, I will not return my unit as it isn't realy consider a defect.
Click to expand...
Click to collapse
Mine does not have any light bleed...
Sent from my F8131 using XDA-Developers mobile app
Come to think of it, you can only see it if you are on the lock screen using the white, rose or white background, I did notice this as well on the other units before I chosen this one as my final one.
I have a slight light bleed on the bottom right hand corner. i only notice it if i really look for it,. it only shows on brighter colors. Only thing im afraid of is it getting worse.. my xperia z3 compact had the same issue, but way worse. it was yellowish, so i think it was the glue melting or something. whats crazy about the z3 compact having the issue is; i bought the phone with a cracked display and sent it to Sony to fix/replace everything that was broken and i received it like that. i havent owned one IPS display device without having light bleed.
PS. i have the xperia x, non performance.
No light bleed here. You're talking bottom of screen above speaker?
Sent from my F8132 using Tapatalk
MGSBigBoss said:
No light bleed here. You're talking bottom of screen above speaker?
Sent from my F8132 using Tapatalk
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Click to collapse
im talking about the very bottom right part of the bezel. think of it as if you had a white tool bar at the very bottom, you would notice it on the right edge of the screen, on the bottom portion. it goes up about half an inch. I would get it replaced, but then id be without a phone and i only really notice it if im looking for it.. still bugs me with my OCD though
stratax said:
im talking about the very bottom right part of the bezel. think of it as if you had a white tool bar at the very bottom, you would notice it on the right edge of the screen, on the bottom portion. it goes up about half an inch. I would get it replaced, but then id be without a phone and i only really notice it if im looking for it.. still bugs me with my OCD though
Click to expand...
Click to collapse
I'm looking and don't see it. My only issue which doesn't affect functionality and that I ignore is that my front camera isn't quite centered in the opening. It's slightly shifted to the right. It's weird because when I check the phone I don't see any gaps even with a flashlight. But no big deal.
Sent from my F8132 using Tapatalk
MGSBigBoss said:
I'm looking and don't see it. My only issue which doesn't affect functionality and that I ignore is that my front camera isn't quite centered in the opening. It's slightly shifted to the right. It's weird because when I check the phone I don't see any gaps even with a flashlight. But no big deal.
Sent from my F8132 using Tapatalk
Click to expand...
Click to collapse
All I have is a row of very faint light dark light dark light....... along the bottom from one end to the other, I think its just the row of LED along the bottom, I have check many units from friends and display model, they all have this.
But since it's very faint and only shows with white or beige background, it isn't important and I don't think its a defect.
kms108 said:
All I have is a row of very faint light dark light dark light....... along the bottom from one end to the other, I think its just the row of LED along the bottom, I have check many units from friends and display model, they all have this.
But since it's very faint and only shows with white or beige background, it isn't important and I don't think its a defect.
Click to expand...
Click to collapse
If you open diagnostics, screen test and look at the full white page.. Do you notice light in the bottom of each corner? (not the top ones, but bottom). I just got my replacement because it was bothering me on my last unit.. this one has the EXACT issue, in the exact spots (more noticable on the right side). a pure black screen looks perfect though? i just think that is so odd.
also, i do notice the black strip you're talking about, i think it has to do with those leds being visable
stratax said:
If you open diagnostics, screen test and look at the full white page.. Do you notice light in the bottom of each corner? (not the top ones, but bottom). I just got my replacement because it was bothering me on my last unit.. this one has the EXACT issue, in the exact spots (more noticable on the right side). a pure black screen looks perfect though? i just think that is so odd.
also, i do notice the black strip you're talking about, i think it has to do with those leds being visable
Click to expand...
Click to collapse
This issue isn't bothing me, but there is a problem I have noticed, not sure if it was their during my purchase or it suddenly just popped out, but in a white screen I do have a patch about 3mm-4mm which is white that shows up, it's much whiter than the actual screen if you have white and also shows up in a biege background, I think it's what people are calling a light bleed I guess, it's on the bottom left corner about 10mm from the left and 15mm from the bottom.
I took it to a local xperia service center yesterday, and they say it could be two reasons behind it, either something is pressing on the back of the screen or a defective LCD panel, either way they say my warranty covers it, it's a shame as It was sort of a perfect screen free from any pixel problems that I find with many xperia phones.
I will have them to service it after my holiday in early October.
kms108 said:
This issue isn't bothing me, but there is a problem I have noticed, not sure if it was their during my purchase or it suddenly just popped out, but in a white screen I do have a patch about 3mm-4mm which is white that shows up, it's much whiter than the actual screen if you have white and also shows up in a biege background, I think it's what people are calling a light bleed I guess, it's on the bottom left corner about 10mm from the left and 15mm from the bottom.
I took it to a local xperia service center yesterday, and they say it could be two reasons behind it, either something is pressing on the back of the screen or a defective LCD panel, either way they say my warranty covers it, it's a shame as It was sort of a perfect screen free from any pixel problems that I find with many xperia phones.
I will have them to service it after my holiday in early October.
Click to expand...
Click to collapse
THink you could get a picture of it?
kms108 said:
This issue isn't bothing me, but there is a problem I have noticed, not sure if it was their during my purchase or it suddenly just popped out, but in a white screen I do have a patch about 3mm-4mm which is white that shows up, it's much whiter than the actual screen if you have white and also shows up in a biege background, I think it's what people are calling a light bleed I guess, it's on the bottom left corner about 10mm from the left and 15mm from the bottom.
I took it to a local xperia service center yesterday, and they say it could be two reasons behind it, either something is pressing on the back of the screen or a defective LCD panel, either way they say my warranty covers it, it's a shame as It was sort of a perfect screen free from any pixel problems that I find with many xperia phones.
I will have them to service it after my holiday in early October.
Click to expand...
Click to collapse
stratax said:
THink you could get a picture of it? i uploaded a picture from a ebay posting and it makes me feel a little better
Click to expand...
Click to collapse
Excuse my edited picture above, here what im experiencing. looks way worse at night. more of an OCD thing, but it does bother me that i paid full price and whatnot. the light bleed actually goes across the whole bottom, not just the edges. just harder to see in this lightning (im at work)
kms108 said:
Does anyone get any inconsistent light bleed at the bottom of the screen, I know light bleed is normal in current screen technology, i'm just curious, top and left/right side looks fine on my unit, it's just the bottom, I will not return my unit as it isn't realy consider a defect.
Click to expand...
Click to collapse
exactly same problem here

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