Please check your nexus 7 tablet for backlight bleeding

[blackberrymamba]

no dead pixels and no apparent light bleed.

Can you take pic in pitch black room with brightness at 100 percent, and use the black screen in the screen tester app. Also apply a little pressure along the edges of your screen and look for the screen to turn a bit white where your pressing. I can probably find the light bleed for you.

 

[dportal2006]

Is it expected that all of these units have some backlight bleeding? I have gone through 4
Of these tablets and all have a bit of backlight bleed issues. You can see it when you turn brightness all the way up and use the screen tester app and use the black screen in the background. On some its not so bad with just a little along the edges. Is it acceptable for there to be some backlight bleed?

How to check.

Can you guys do me a favor and turn brightness all the way up making sure to turn off the auto dimmer.

Then download the free screen tester app.

Go through all the colors and check for dead pixels while your at it.

Now when you get to the black screen check to see if you have light coming through the corners.

Any shade of white that you see is backlight bleed.

I just want to know if this is a common defect. After going through literally five units all had backlight bleeding. That's a strong case that most of these units have some backlight bleed.

There is a little bit coming from the left side but it is not noticeable.

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[natehoy]

Take a picture of the tablet in the dark in a pitch black room turning brightness to 100 percent. I bet I could spot the backlight bleed. Also press around the bezel at the edges of the screen with a good amount of pressure and see if the light changes or gets white around the area your pressing.

In absolute darkness I can run the black screen test and still use my Nexus as a flashlight, and the color is not true black. There are a few points that are a little whiter where the LED backlights are located and the diffusers that are designed to spread the light evenly across the panel are not 100% effective. When holding it normally, other than a few slightly bright spots where the LEDs are located, the dark, dark grey is even and consistent. This is normal behavior in my experience on an LCD-backlit-LED screen.

I took a picture of it but all you see is the home row icons and a whole lot of black. I don't have a night-capable camera, only consumer-grade digital gear, I'm afraid. Short of a DSLR with a long shutter, I honestly don't know how I can capture the gradient around the LED backlights, but it's very subtle, EVEN in the dark, and EVEN at 100% backlight. In other words, it's very well within the tolerances of what I've had in the past.

I had a previous BlackBerry where the backlight was actually visible (blinding, really) if you looked at the phone at an extreme angle. There was a gap between the LCD screen and the glass cover and one of the backlights was placed so it was directly visible in that gap. There's none of that nonsense on the Nexus.

If I push on the sides of the screen near the bezel harder than I normally would, on the left side I can make color bleed happen in full light not even at 100% screen brightness. There's enough flex in the back case and/or attachment between the glass and the LCD to allow some pressure in there if you squeeze the unit. This simply means the unit has some flex in it, probably to try and prevent instant transmission of any impact from the back case to the glass, or maybe because it was built on a budget and they didn't do a tensioned wraparound bezel. I can do the exact same thing on any LCD panel I've owned, including my HTC Thunderbolt and my wife's Samsung Galaxy S2.

In either case, I'm not in the habit of squeezing the edges of my glass panels or running my screen at 100% in darkened rooms and it is in no way affecting my enjoyment of the device. The screen and build quality are every bit as good as my other decent fondleslabs (iPod Touch, and the aforementioned other two phones) and considerably better than the two Pandigital tablets I have experienced.

I'm either misunderstanding what you mean by "backlight bleed" or you're being too fussy. I see only the amount of bleed expected from a normal LCD panel.

 

[trayes77]

Thanks for the thorough explanation and going through examining your screen. From what you explained, I have the issue where the diffuser is not transferring the light evenly throughout the screen. The left side of the screen is whiter than the right side.

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[Chocoburger]

I just tested mine, it wasn't pitch black but it was pretty dark. I did see a tiny hint of white light seeping through. It wasn't anything that bothered me though. I am perfectly pleased with my screen.

 

[Ravynmagi]

If some backlight bleeding is all you have to complain about, then you should hug your Nexus 7 gently, give it a kiss, and say "I love you baby". Because it could be a lot worse.

 

[trayes77]

Agreed that it could be worse. Its just calming to know that the aforementioned screen issues are common. I have no intention of exchanging it now that I have read these posts.

Sent from my Galaxy Nexus using Android Central Forums

 

[blackberrymamba]

Fact is I'm being way too picky. A tiny bit of backlight bleed is Fine so long as it isn't noticeable. I definitely think I suffer from some kind of Ocd Because what I did by returning 3 nexus 7 tablets all at once was quite ridiculous and sure drew a lot of attention. That said I did have an Acer iconia tab with zero light bleeding so I didn't know it was normal.

 

[That70sGAdawg]

My 16GB from Office Max store in North Atlanta pass all test

 

[sixstring2012]

I use this tab daily and have not noticed any issues with the screen at all, but then again, I'm not scrutinizing screen tester apps either There's no way I'm returning this bad boy!

Sent from my Nexus 7 using Android Central Forums

 

[F34R]

Can you take pic in pitch black room with brightness at 100 percent, and use the black screen in the screen tester app. Also apply a little pressure along the edges of your screen and look for the screen to turn a bit white where your pressing. I can probably find the light bleed for you.

Thanks for the info! I did it just as you advised, and definitely see the light now. Also, found a dead pixel; just one. Oh well. It's definitely going back to retail tomorrow.

 

[di4b0liko]

my tablet have the problem.



http://imageshack.us/a/img145/7794/20120918232517.jpg

warranty?

 

[shona001]

Well I have discovered that if I turn the brightness up to full and put the black screen on the screen test and take my nexus 7 into the cupboard under the stairs where it is pitch black I can see a tiny bit of light on the left side, I have also confirmed my husbands fears that I am totally mad

I am not at all concerned about the nexus 7 but I am a little worried that men in white coats might shortly come to take me away in a straight jacket.

 

[dparrothead1]

I have always wondered about anyone that would sit around and stare at a black screen.

I might have done that in my youth back in the 60's.......but I gave that up a long time ago.

 

[Diordna11]

Thank You, thank you, thank you for taking the words right out of my mouth. I've had my 7 for three weeks and have zero issues and I am certainly not going to go looking for something that I would never find without going to extremes.

Sent from my DROID RAZR using Android Central Forums

 

[paul-c]

No backlight bleeding to report here.

Sent from my Sony Ericsson Xperia Mini

 

[Jussumguy88]

No bleeding for me.

Sent from my Nexus 7 using Tapatalk 2

 

[AstronomerXI]

Take a picture of the tablet in the dark in a pitch black room turning brightness to 100 percent. I bet I could spot the backlight bleed. Also press around the bezel at the edges of the screen with a good amount of pressure and see if the light changes or gets white around the area your pressing.

And how is this in any way related to real-world usage?!? I mean, wholly fsck! Do you have any understanding of what backlight bleed is in the real world? I find LCD displays bright, so I run mine at low intensity and use an app to dim even further. For fun, I decided to look into what you see is a problem. My N7 is a C80 and I ran screen tests at full intensity. Nothing unacceptable there. At all. <slowly shakes head>

Sent from my Nexus 7 using Tapatalk 2

 

[AstronomerXI]

In absolute darkness I can run the black screen test and still use my Nexus as a flashlight, and the color is not true black. There are a few points that are a little whiter where the LED backlights are located and the diffusers that are designed to spread the light evenly across the panel are not 100% effective. When holding it normally, other than a few slightly bright spots where the LEDs are located, the dark, dark grey is even and consistent. This is normal behavior in my experience on an LCD-backlit-LED screen.

...

I'm either misunderstanding what you mean by "backlight bleed" or you're being too fussy. I see only the amount of bleed expected from a normal LCD panel.

THIS! +1

Sent from my Nexus 7 using Tapatalk 2

 

[AstronomerXI]

Fact is I'm being way too picky. A tiny bit of backlight bleed is Fine so long as it isn't noticeable. I definitely think I suffer from some kind of Ocd Because what I did by returning 3 nexus 7 tablets all at once was quite ridiculous and sure drew a lot of attention. That said I did have an Acer iconia tab with zero light bleeding so I didn't know it was normal.

Just saw this message. I'm somewhat of a perfectionist with my gear too, so I get it. Thanks for posting!


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