Database Develop

Backlight bleeding poll

How many of you have at least some light bleeding on your N7? I've got some minor bleeding in my bottom left corner and just wondering if it's pretty normal on these tablets.
Here's a good app to test for it:
https://play.google.com/store/apps/details?id=com.joeleveque.backlightbleedtest&hl=en

Very minor for me, only noticeable on the boot screen (Google logo).
I am more bothered by the washed-out screen after playing movies:
http://forum.xda-developers.com/showthread.php?t=1781157

No backlight bleeding here.

None here
Sent from my Nexus 7

I have a nice back light bleed line along the entire right side of the device :-(

Terrible light bleeding along the left side.
See attached.
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I feel sick with that bloody screen...

Yep. The one I got from the Play Store has bleeding in the lower left corner. I already called for an RMA, my new one should be here by Wed I hope.

Got mine from the Playstore. Ever so slight on the bottom right (held landscape). Most people probably wouldn't notice but it's annoying me. Might RMA tonight. Can this be done without sitting on the phone to Google? Last time I could hardly hear the guy.
Has anyone tried tightening/loosening the screws inside to rectify the leakage?

charco83 said:
Got mine from the Playstore. Ever so slight on the bottom right (held landscape). Most people probably wouldn't notice but it's annoying me. Might RMA tonight. Can this be done without sitting on the phone to Google? Last time I could hardly hear the guy.
Has anyone tried tightening/loosening the screws inside to rectify the leakage?
Click to expand...
Click to collapse
I tried. It doesn't help a bit. Rang Google from Australia and waited for a long time. Got an email from them with instructions to arrange pick up from FedEx but the guy forgot to attach the RMA form. Reply via email and no reply for over 12 hours. Will call them again tomorrow.

In all honesty I put "none" even though I saw some in the bottom-left corner also.
The reason I put none is because I had to use screen test to turn the whole screen black and turn off all the lights and ambient light sources in my room in order to see it. And even then, it was very, very minor.
People seem to complain about their N7 a lot, but my own experiences with the hardware have been flawless, barring shorter-than-advertised battery life

You are the lucky one I guess. Today I went to a retail store and buy another one. This one doesn't have the light bleeding issue, but the screen flickers a lot, and this issue is very visible in a dark room and with a white background. Contradicts to what others are saying, the flickering happens in all apps as long as the background is white.
Disappointed but not entirely unexpected with any brand new product.
Sent from my Nexus 7 using Tapatalk 2

Has anyone got a photo of the screen working perfectly? I get paranoid that I'm being to precious about the quality.

None.
Ordered from PCWorld UK.

Minor at top of screen and along the left side. Seems to have gotten worse since I've been using it.
Think I am returning the tablet to play store and not purchasing another. I don't have time to deal with defective hardware.

last picture on my review shows my screen.
it has HEAVY bleeding, now waiting for replacement...
http://smartphoneblogging.com/2012/07/review-google-nexus-7-hardware/

Pronounced with white bkg, not dark
Yes, 4 white blobs on the left side when looking at lighter colored apps.... like Google Play books, Google Talk, Gmail, Currents, etc....
Kinda bummed... on the fence about a RMA.
clankfu said:
How many of you have at least some light bleeding on your N7? I've got some minor bleeding in my bottom left corner and just wondering if it's pretty normal on these tablets.
Here's a good app to test for it:
Click to expand...
Click to collapse

Wow, 35% here have backlight bleeding.
Oh QC, QC, wherefore art thou?

Mines is minimal but I've put in to return and NOT replace.
It's a great device so I'm going to try buying locally so I can easily return. Not spending another 50 minutes on hold to Google and wait days for email responses. Suspect Google have bitten off more than they can chew with this one!

Nope.... none here.

Nope. Google Play UK.
Sent from my Nexus 7 using xda premium

HP touchpad screen problem

Hi Guys!
Recently I purchased a 32 gb touchpad second hand dual boot CM9 and everything was working ok. Couple of days ago I noticed a four brighter spots-around 1mm- in the left top corner. I don't know if these spots have been there at the beginning as they are hardly visible apart from white background and other light colors. What I find strange is that these spots form a perfect rhombus, kind of the one Google put on the top dev apps. Could you please help me or at least give me some idea: what these bright spots might be? Thank you very much!

Can you provide a picture?

Have you tried any of the screen test app's? Could be dead pixels...
Sent from my cm_tenderloin using xda premium

Infinite Jest said:
Can you provide a picture?
Click to expand...
Click to collapse
That is the best I can do. Sorry if the quality is no good. Although the screen appear grey it is actually white and those four bright dots are clearly visible. Thank you. I also checked for dead pixels, but I don't think this is the case. Appreciate any help!

This is a re-post of mishoni's image that he/she sent me via PM.
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I'm not really that experienced with this kind of thing, but it doesn't look like a dead or stuck pixel to me. When you press firmly on the screen, does it change at all?
EDIT: This is a response from OCN after I posted your issue and picture:
"Look like a finger print
To ID screen issues make 5 pictures. They should be pure black, pure white, pure Red, pure Green and pure blue. Use MS paint ore something and its best if the pictures are the same size as the screen and in png format (Jpegs can have artifacts). Now look at thees pictures in full screen mode. If the "smudge" looks the same regardless of color then its probably something like a nick or scratch on the screen. If shape changes depending on color it means there are damaged or jammed liquid crystals in the screen. If the crystals are just jammed they can start to work again if you run flickering video (google dead pixel repair). If its indeed stuck pixles then you can also tap the area repeatedly as a slight movement in the screen panel can get crystals moving again."
You might want to give that a shot.

Hi Infinite Jest!
I installed Dead pixel repair and Pixel fixer. I run both apps and these spots are still visible, more or less on every screen background, apart from black. I don't think it is a scratch or nick on the screen, as the shape is strange and I cant feel anything when go over it with a finger. Also, the shape never change regardless of the screen background. I would appreciate if you could re-post to OCN-I don't know what that abbreviation stand for. Thank you again!

mishoni said:
Hi Infinite Jest!
I installed Dead pixel repair and Pixel fixer. I run both apps and these spots are still visible, more or less on every screen background, apart from black. I don't think it is a scratch or nick on the screen, as the shape is strange and I cant feel anything when go over it with a finger. Also, the shape never change regardless of the screen background. I would appreciate if you could re-post to OCN-I don't know what that abbreviation stand for. Thank you again!
Click to expand...
Click to collapse
OCN=overclock.net
http://www.overclock.net/t/1291729/need-help-i-d-ing-screen-imperfection

His response:
"In that case it sounds to me like its a back light issue or to precise the backlight diffuser has a flaw in it. The diffuser is an clear plastic sheet that's painted white. It's job is to evenly reflect the light from the LED's though the LCD matrix. Unfortunately there is very little a layman can do about an damaged/flawed diffuser. I would just try to live with it but if it really bugging you then you might want to either RMA if (if you have warranty) or ring up HP support and ask about what it would potentially cos to fix it (and that's probably more then you will want to pay)."

screen comparison between 128gb and 64gb, not the same?

I recently got my 128gb, and returning the 64gb tomorrow, did some comparison on the screen, 128 on the left side.
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Light bleeding on the camera at low light condition
Brighter on the 128gb(letft). Stripes are from the camera(glare)

Different display modes?

Takes a few hundred hours for the pixels to settle. In a month they both would probably look similar.

556AR said:
Different display modes?
Click to expand...
Click to collapse
This. Make sure your display mode is set to the same setting on both devices.
Light bleed does suck though. I had that on pretty much every HTC device I've owned.

556AR said:
Different display modes?
Click to expand...
Click to collapse
Same "Basic" display modes (as posted on the pic).

jhun80 said:
Same "Basic" display modes (as posted on the pic).
Click to expand...
Click to collapse
While this may sound crazy! This is normal (that there not exactly the same). While you might be able to keep comparing different S6 until you find a pair that "matches", or have the same screen brightness any random pick won't be the same...there are many factors and as simple as different build dates etc...
On the S6 now and have had every galaxy since the first one and several HTC's before. I always by in pairs (keep the wife upgraded) and have noticed this every single time and not just with the Samsung's. Just how it is.
Sent from my SM-G920T

Alright, thanks

This is 'normal'. I am on my 3rd S6 because the first two had that ugly pink tint to it. My 3rd phone not only has no pink tint, but also a really crisp white display. Compared to the previous phones, they were much more yellow.

geoldr said:
This is 'normal'. I am on my 3rd S6 because the first two had that ugly pink tint to it. My 3rd phone not only has no pink tint, but also a really crisp white display. Compared to the previous phones, they were much more yellow.
Click to expand...
Click to collapse
I'm on my 3rd as well, no pink but it does have some green at the bottom sadly. It's not too noticeable, and I don't think I want to go through the hassle of getting a 4th replacement. There's a whole thread on it here: http://forum.xda-developers.com/galaxy-s6/general/getting-replacement-s6-due-to-screen-t3074865

All the AMOLED displays for the S6 are going to have slightly different factory calibration on all profiles. So no two S6 displays are going to be the exact same.

There is no such thing as light bleed on AMOLED screens.

@rbiter said:
There is no such thing as light bleed on AMOLED screens.
Click to expand...
Click to collapse
Exactly. Basic knowledge
AMOLED does not have a backlight, it lights up each individual pixel which is why you can have inky blacks, because it simply turns off those pixels, unlike LED screens that use a black image with a light behind it giving off a grayish background.

@rbiter said:
There is no such thing as light bleed on AMOLED screens.
Click to expand...
Click to collapse
So how do you call that on the picture i posted? That only happens when i opened my camera app on total darkness. A little bit brighter on the botttom

jhun80 said:
So how do you call that on the picture i posted? That only happens when i opened my camera app on total darkness. A little bit brighter on the botttom
Click to expand...
Click to collapse
light sensor is different in the camera (more sensitive or uneven)

I noticed a change in my screen after installing a tmobile update. Originally there was a completely black screen on the lockscreen, but after the update it almost appeared that there was a sort of gradient almost representing a light bleed.

Edit: Seems like i have gotten a defective device (screen issue)..

Guys, its freakin me out , there is a strange cloudy like thick line that appears only on dark grey backgrounds the thick line goes from the very top all the way down to the bottom , dark grey backgrounds like when im using the Resurrection Remix theme,
so the line appears darker than the actual dark grey color, almost looking like blackish and its kind of annoying when i focus my eyes on it , i can clearly see it..
I have purchased my Nexus 6 off amazon in new condition the 349$ 32gig edition, first week it was wonderful.
this screen issue happened after the 2nd week .. and i babied it so i didnt drop it even once. hmm..
so i will give this another week and if the screen issue persists , then i will consider moving on from this beast ..sadly.
here is a picture of the actual problem.
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"burn in" occurs when you have an asset on your screen for a long time, like the status bar. Then when you remove the status bar, it can still be seen slightly.
So what have you had on your screen from the top to the bottom for a long time that may have caused burn in? I don't think it is that.

danarama said:
"burn in" occurs when you have an asset on your screen for a long time, like the status bar. Then when you remove the status bar, it can still be seen slightly.
So what have you had on your screen from the top to the bottom for a long time that may have caused burn in? I don't think it is that.
Click to expand...
Click to collapse
well i could explain it abit, you know it looks like a blur Gradient thing.. and now it can be seen even on other darkish backgrounds no matter which kind teal dark backgrounds and others, the Flat thick gradient darkish line can be seen .. i am a person with OCPD and this will kill me until i get used to it .. hm what a hassle v__v

leondestiny said:
well i could explain it abit, you know it looks like a blur Gradient thing.. and now it can be seen even on other darkish backgrounds no matter which kind teal dark backgrounds and others, the Flat thick gradient darkish line can be seen .. i am a person with OCPD and this will kill me until i get used to it .. hm what a hassle v__v
Click to expand...
Click to collapse
It's not burn in
It could be a defect with the display unit. Get it RMA'd or repaired.

akselic said:
It's not burn in
It could be a defect with the display unit. Get it RMA'd or repaired.
Click to expand...
Click to collapse
man i am from the middle east, so that isnt easy for me.
what does rma stand for? to return it ? not possible for me .. hm i feel down by this , because i didnt notice this issue at all in the first week.. now its my 2nd week and i started seeing this line.. this is a big let down.

leondestiny said:
man i am from the middle east, so that isnt easy for me.
what does rma stand for? to return it ? not possible for me .. hm i feel down by this , because i didnt notice this issue at all in the first week.. now its my 2nd week and i started seeing this line.. this is a big let down.
Click to expand...
Click to collapse
RMA is return manufacturer authorization or something like that, basically return it for replacement. Are you out of warranty or just your location that makes it not feasible? If it runs vertically it sounds like a display defect. Burn in would show up where there is a static element for a long time, like the status bar.
Replacing the display might fix it, but would be costly probably.

jst07 said:
RMA is return manufacturer authorization or something like that, basically return it for replacement. Are you out of warranty or just your location that makes it not feasible? If it runs vertically it sounds like a display defect. Burn in would show up where there is a static element for a long time, like the status bar.
Replacing the display might fix it, but would be costly probably.
Click to expand...
Click to collapse
appears vertically yes .. **** .. i hate white themes.. i hate the white backgrounds .. now i will be stuck with either full white or full black themes, cause that vertical line is seen on all other type of dark backgrounds .. just on pitch black and white i cant see it ... sad man just sad.

@danarama @akselic guys here is a picture of the actual screen.. so you might check and tell me if it is a screen defect .. that line only is visible on Grey colors .. Dark Grey colors, like the Theme i have on now. check it on the picture.

leondestiny said:
@danarama @akselic guys here is a picture of the actual screen.. so you might check and tell me if it is a screen defect .. that line only is visible on Grey colors .. Dark Grey colors, like the Theme i have on now. check it on the picture.
Click to expand...
Click to collapse
Looks like a defect to me..

Is there a thread with common hardware faults we can look out for...i've recently aquired one and need to lookout for the common hardware faults.!

mchu6am4 said:
Is there a thread with common hardware faults we can look out for...i've recently aquired one and need to lookout for the common hardware faults.!
Click to expand...
Click to collapse
man first week ,totally in love with this beautiful beast.. now to bear with a defect screen.. just sad man uff

Uneven brightness/washout on display

I'm not really sure what to call this, because I've never seen it on an OLED screen before.
I have the T813 WiFi model.
Recently, I've noticed, when using sites or apps with a dark background (like XDA Labs), that my display's brightness is noticeably uneven. Holding it in landscape mode, with the home button on the right, the screen looks something like this:
Bottom left corner: normal, full dark colors
Top left and bottom right: coloring is alright, but not as good as the bottom left
Middle (vertically): noticeably brighter, sort of a strip of washed out color
Top right corner: the worst area, looks like the pixels were burned
Excluding the strip in the middle, this is a pretty even radial gradient from the bottom left.
I can't really take a picture of this, because it just won't show up. I just have to do my best to describe it. It's almost like the backlight is messed up, except that OLED doesn't use a backlight. The pixels toward the top right are just a lot brighter than the ones on the bottom left, so they look whiter or washed out. It's somewhat strange. I've seen a few burn tests of SAMOLED screens (so Samsung) and noticed they turn white when heated and tend not to restore. I do put this in a computer bag, but I don't know what could be in here that would cause enough heat near one corner to do this (the CPU is top left, which is alright in color).
Has anyone seen this before? Should I get a warranty replacement? Do I need to describe it better?

if it bother you that much, just do warranty replacement.
my friend did it for his T715, the new unit look slightly better
but of course still no 100% uniformity.

Here's how mine somewhat looks (intentionally raised brightness to better show the effect. My power button also seems to stick a bit sometimes.
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Devhux said:
Here's how mine somewhat looks (intentionally raised brightness to better show the effect. My power button also seems to stick a bit sometimes.
Click to expand...
Click to collapse
That's exactly what it looks like.

Zacharee1 said:
That's exactly what it looks like.
Click to expand...
Click to collapse
Yeah. After further testing there's definitely something I don't like.
Using the Display Tester app in the Play Store, I set the 4-gradient test to use the same dark grey color across the screen (1A 18 1A). Results weren't pretty......
Sent from my iPhone using Tapatalk

Devhux said:
Yeah. After further testing there's definitely something I don't like.
Using the Display Tester app in the Play Store, I set the 4-gradient test to use the same dark grey color across the screen (1A 18 1A). Results weren't pretty......
Click to expand...
Click to collapse
Hmm. I'm kind of glad to see it's probably not a defect, but also kind of annoyed that it's normal. It'd be great if someone else could say if they have the problem too.

I have something like this to. Its annoying but only really visible with greys. Its relatively common with AMOLED screens, my S6 edge+ has it as well, but only very faintly.