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I'm deciding between a tf201 or a samung tab 7.7 but I've been reading a lot of reports that users are getting backlight bleeding and others are not.. what is the actual stand on this, is the backlight bleeding normal or just common?
People defend it by saying that even the ipad2 has bleeding, I've checked 3 ipad2's from relatives and none if it had any backlight bleeding including a single ipad1 and 2 iphone4's.
For TN based displays I understand its normal for it to have bleeding.
As an ex-Asus fanboy, there definitely is a light bleed issue. Most prominently around the right and bottom sides of the tablet. IF you look around at the forums about light bleed issues, you'll notice that people who have had the issue say "I'm not on my 4th prime" or something similar. It's an issue with shotty quality control.
I bought a prime and had a light bleed issue. Majority of that light bleed could only be seen when the screen was black. However, it is very significant light bleed. Other tablets or IPS devices that have light bleed are similar, but just not as pronounced. Asus really redefined light bleed
I traded in my first Asus Prime and received a second one (BC) from the same store. It had light bleed in almost the exact same location, and in some cases worse. None the less, I took that back and just kept my money. Hopefully a galaxy tab 2 or Iconia A700 or TF700 or IPAD 3 will serve me better for the $500 I spent.
Bottom line -- if you're going for a prime, you're most likely going to get light bleed (chances are slim you won't). And after spending a week with it, it gradually got worse.
I might try to buy one again at the end of February to see if they improved the quality.
Pubnum said:
As an ex-Asus fanboy, there definitely is a light bleed issue. Most prominently around the right and bottom sides of the tablet. IF you look around at the forums about light bleed issues, you'll notice that people who have had the issue say "I'm not on my 4th prime" or something similar. It's an issue with shotty quality control.
I bought a prime and had a light bleed issue. Majority of that light bleed could only be seen when the screen was black. However, it is very significant light bleed. Other tablets or IPS devices that have light bleed are similar, but just not as pronounced. Asus really redefined light bleed
I traded in my first Asus Prime and received a second one (BC) from the same store. It had light bleed in almost the exact same location, and in some cases worse. None the less, I took that back and just kept my money. Hopefully a galaxy tab 2 or Iconia A700 or TF700 or IPAD 3 will serve me better for the $500 I spent.
Bottom line -- if you're going for a prime, you're most likely going to get light bleed (chances are slim you won't). And after spending a week with it, it gradually got worse.
I might try to buy one again at the end of February to see if they improved the quality.
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i am actually on my 4th prime! lol. And yes still have bleeding and it is getting worse after just 2 days.
wait for the for the TF700 if you dont need it now.
Sent from my Transformer Prime TF201 using xda premium
I dont need it now but I want it now... so with the S-IPS panel specification there should be no backlight bleeding correct?
EarlZ said:
I dont need it now but I want it now... so with the S-IPS panel specification there should be no backlight bleeding correct?
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Of course there "SHOULD" not be any backlight bleeding. No manufacturer wants to produce a display with light bleeding from the sides.
The reality is that most Primes suffer from this and it is up to the user to live with it or not. The one I had did have some bright spots along the lower edge of the screen and I would have put up with it had it not been for the constant reboots.
For me its not gonna be acceptable considering the price and the touted S-IPS since I've never personally seen one with backlight bleeding. I guess I have to wait it out.
EarlZ said:
For me its not gonna be acceptable considering the price and the touted S-IPS since I've never personally seen one with backlight bleeding. I guess I have to wait it out.
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Utility of a device is always a matter of perspective. Some people look past it mostly because they want it so bad. I teased myself with it for about 7 days and finally made a decision that it could wait (mostly because the backlight bleed became worse!)
remics said:
Of course the "SHOULD" not be any backlight bleeding. No manufacturer wants to produce a display with light bleeding from the sides.
The reality is that most Primes suffer from this and it is up to the user to live with it or not. The one I had did have some bright spots along the lower edge of the screen and I would have put up with it had it not been for the constant reboots.
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Exactly. The question is, would have anyone noticed if they were not looking for it? It's a psychological question I often ponder. I almost forgot about my backlight bleed because I really didn't experience it during normal lighting conditions and apps/background not highlighting the bleeding. The tablet also is fricking amazing from head to toe with regards to functionality, ease of use, and performance.
However, its a shame as the backlight is turned up all the way when you first start the tablet. Since the startup screen uses a complete black backdrop the first experience a brand new Prime user will have (and yes you WILL have it) will be light bleed.
I will watch a lot of movies on in and for sure a dark scene cant be avoided and I even use an all black background or a black and white picture so its gonna be noticeable on my regular use including the fact that 85% of my usage will be in the bedroom with lights off.
I've had my prime for about 10 days. It's got what I would consider minor light bleed. When I first turn it on and it's going through the boot screens, there's noticeable bleed in the top right corner and along the bottom in several spots. However, when the homescreen comes up (even with a dark background - i.e. the ASUS live wallpaper at night), I can barely notice any bleeding at all.
So, I guess my point is, if you're using it with the lights off, your screen brightness will be at its lowest setting and hence light bleed should be barely noticeable if at all.
Meh still! 100 times better than my old windows 7 laptop. I look forward to using the tablet vs my desktop or laptop because the screen is so beautiful. I still think many of you like me are tech junkies and will buy the next greatest thing when it comes out...
Sent from my SAMSUNG-SGH-I777 using XDA App
EarlZ said:
I'm deciding between a tf201 or a samung tab 7.7 but I've been reading a lot of reports that users are getting backlight bleeding and others are not.. what is the actual stand on this, is the backlight bleeding normal or just common?
People defend it by saying that even the ipad2 has bleeding, I've checked 3 ipad2's from relatives and none if it had any backlight bleeding including a single ipad1 and 2 iphone4's.
For TN based displays I understand its normal for it to have bleeding.
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Keep in mind that the ICS setup screens are NOT totally black. They are black at the top and then lighter towards the bottom. I've had many people mistake this for light bleed
pdanders said:
Keep in mind that the ICS setup screens are NOT totally black. They are black at the top and then lighter towards the bottom. I've had many people mistake this for light bleed
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I'm awre of that, I'm gonna use a totally black png image to check for lightbleeding if ever I decide to get one.
First two primes I owned, returned due to stuck pixels are HORRIBLE light bleed. 3rd one barely any bleed (slight amount in upper right hand corner, BCOK serial number. 4th and 5th prime, C10K serial numbers, zero light bleed. Very happy with them.
(reason for 3, one for me, my wife and bought one for my brother in law for his birthday).
So you have a C1 and no light bleed?
Light Bleed getting worse
Has anyone seen their light bleed becoming worse as time goes by? My Prime came and there was only a slight light bleed in the lower left corner and was only noticeable during boot. I have now had the Prime for 3 weeks and the Light bleed has gotten worse. I now have light bleed up the left side, across the bottom and up the right side. Is anyone else seeing this with their Primes?
Others also reported that its getting worse.
Mine has bleed, but the only time I ever notice is when it's booting. They all have some form. iPads have them also. Mine did.... it's the nature of IPS, apparently.
Enjoy your TF201, stop staring at a plain black screen.
Mine has just a bit of bleed along the bottom, not really noticeable and nowhere as bad as our TV. The top-right corner however, on the bootup screen and any solid black (does not show up in any other color ) has pretty bad bleed. I'm pretty sure this is down to only having pressure in the four places this screen does.
If I push the panel's corner in toward the glass in that spot the bleed disappears, and no amount of tightening on the nearest screw will help.
I have not noticed mine get worse in the two weeks I've had it, but I reseated all the screws and made sure they were snug...
I don't know... I've had mine for a week and I don't have any light bleed. None that I can notice at least..
SN: C10
The backlight bleed 'issue' is either hit or miss. I had a B1 grey for a couple of weeks before my C1 Champagne pre-order finally came in and the B1 had no backlight bleeding what-so-ever. My C1 has a small amount light bleed along the right side, which from the sounds of it is fairly common on the C1s.
In my opinion the backlight 'issue' is not that big of a deal. In my normal daily use it is something I don't notice at all. As others have mentioned if you do get one with light bleeding the only time you really notice it is on the boot screen.
So i just got my S3. Its the 32gb White one :victory:
I'm familiar with most of the 'issues' regarding the S3. Here's what i've checked so far:
1) pink/yellow screen tint - I'm extremely happy that i do not have this issue, my whites are white
2) ink marks on screen - i checked this out. I have about 4 dots, they're all extremely tiny, i actually had to squint to see them so i was quite happy about this
3) Black Crush - Unfortunately i've noticed this issue. I watched the iron man 2 trailer and the "black crush" effect was definitely visible. It also effected a pic i was viewing. I used filter screen and that largely resolves the issue but it says that it can potentially mess up an AMOLED screen
Whats the deal with this issue. I heard supercurio is working on a fix, does that mean its not hardware related? or would it be wise of me to go in and exchange my device?
4) Some people have been having wifi issues. So far it mostly seems okay havent experienced any serious issues yet.
I've browsed the forums and these seem to be the main issues relating to the phones hardware. What other issues or defects should i check for? The place i purchased it from has a 7-day return policy so i want to make sure i have the best possible unit, since this is my phone for the next 2 years
One other thing which isnt really an issue. Amoled screens are boasted to have very dark/true black because the screen tech can turn individual pixels off, why is it that the black on the S3 doesnt seem that deep and it seems as if all the pixels are on? i'm just interested to know why it is like this
mits101 said:
So i just got my S3. Its the 32gb White one :victory:
I'm familiar with most of the 'issues' regarding the S3. Here's what i've checked so far:
1) pink/yellow screen tint - I'm extremely happy that i do not have this issue, my whites are white
2) ink marks on screen - i checked this out. I have about 4 dots, they're all extremely tiny, i actually had to squint to see them so i was quite happy about this
3) Black Crush - Unfortunately i've noticed this issue. I watched the iron man 2 trailer and the "black crush" effect was definitely visible. It also effected a pic i was viewing. I used filter screen and that largely resolves the issue but it says that it can potentially mess up an AMOLED screen
Whats the deal with this issue. I heard supercurio is working on a fix, does that mean its not hardware related? or would it be wise of me to go in and exchange my device?
4) Some people have been having wifi issues. So far it mostly seems okay havent experienced any serious issues yet.
I've browsed the forums and these seem to be the main issues relating to the phones hardware. What other issues or defects should i check for? The place i purchased it from has a 7-day return policy so i want to make sure i have the best possible unit, since this is my phone for the next 2 years
One other thing which isnt really an issue. Amoled screens are boasted to have very dark/true black because the screen tech can turn individual pixels off, why is it that the black on the S3 doesnt seem that deep and it seems as if all the pixels are on? i'm just interested to know why it is like this
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My white is white too but not as white as my laptop monitor. it is not pink or yellow for me but not as white as white should be. I can live with this
black crush is there too i check with gamma pattern test. i can only see till 8. the 7 i can see the number but the border gone. So far not effecting my experience with the phone
also, some ink black mark is noticeable in gray or low gamma setting. i can see about 2 ink without squinting my eyes but if i squint i can see another 3 ink black on my screen. (This one i can live with it too but just wish there is not ink mark for a device this expensive..) - i checked with cousin S3 too, he had one ink mark in a same spot as me but his ink mark is less then me. I don't know if i need to exchange but when i search about this, it seems all samsung S3 has this
no wifi issues
I tried the Flashlight App and white is completely white without the slightest tint so the phone is capable of proper white.
I need one on HSPA+. I can get that through t-mobile right?
launcher redraw
My only gripe with this phone is the touchwiz launcher redraw.. it happens too often for my liking.
Hi everyone. I want to buy a Nexus 9 but I am scared about the light bleed. I do not want any problem with this as I am very scared to spend so much money on it if there is. Do you think the light bleed issue will be fixed in the next batch of Nexus 9's that are rolled out?
I have one and it is not that bad more concerning is the dead pixel I have on mine.?
I have light bleed on both corners at the bottom of my screen. Certainly not a big deal though for me. Can't see myself returning it. I have the 32GB White one.
did you cats purchase from htc? google? bby?
Google Play direct.
I have lots of bleed as well, ordered from play store. Mine is bottom corners and top middle. Its also easy to tweak the tablet to make it bleed a lot more. However, lollipop is so light that its rarely noticable. We'll see next time i watch a movie. Might exchange it in a few weeks.
The light bleed is tolerable. I've seen it pretty much on every lcd screen there is.
Honestly, it looks fine to me. Will only exchange it if I see dead pixels, other than that, the tablet is SEXY AF.
I don't have a light bleed
i dont see any light bleed yet. 32 gb black from goog.
There's a thread about this in the Q&A section. There seems to be a few of us with light bleed but the severity of each case varies. Most of it seems to be slight light bleed and if you look for it you'll definitely will find it. Mine is not too bad and I've been finding myself forgetting about it when I use the tablet, so it's up to the user.
I've only had my ZenWatch 2 for 24 hours, but I quickly noticed several distinct, white spots when swiping a card away. They are very apparent against that blue background (see photo). However, I don't notice them against any other color, or anywhere else. But they are always that same quantity and in the exact same spot.
I'd expect to see them everywhere if it was from dead/stuck pixels... Any thoughts?
I have factory reset twice, and updated to the latest software revision...
Thanks in advance.
Well, I found some more. Same blue background, same section of screen. But this time different placement.
I can't help but to wonder now if Asus made some poor effect decisions, or if their blue background file has issues.
Can someone else test and post results here?
Try opening a card then slowly swipe it away. They are easy to spot...
hijax2001 said:
Well, I found some more. Same blue background, same section of screen. But this time different placement.
I can't help but to wonder now if Asus made some poor effect decisions, or if their blue background file has issues.
Can someone else test and post results here?
Try opening a card then slowly swipe it away. They are easy to spot...
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I don't have any spots on mine on any color that I can see, I'd get a replacement if I were you.
I'm experiencing either a defect or an unfortunate feature on this tablet. I just took delivery of a new one, and while viewing any solid colors besides grey on the screen everything is fine (also no dead pixels), but I'm noticing what appears to be slight backlight flickering/pulsing whenever grey or light blue is shown on the screen. It seems to be PWM (pulse width modulation) of the leds, but I can't be certain it's a defect or just the unfortunate way these tablets' led screens are designed. It's a very subtle but consistent and annoying pulse, but it's definitely there. Can anyone confirm that PWM is what's going on with these tablets or if this is a defective screen. The screen doesn't pulse at all on any other colors solid or only partially filling the screen or otherwise.
I haven't noticed anything on mine, though I tend to keep the backlight fairly low (17%).
One thought though which is why I'm saying anything, I remember on the nexus 7 there was an issue with one of the friction pins not connecting to the back of the case's antenna fully sometimes, which would cause the radio/wifi to suck extra power resulting in backlight pulses... have you tried turning on airplane mode (disable the cellular) with wifi off to see if that makes a difference? Though it would be odd if it only affected the one colour... I suppose it could be your ambient light source too, does it do it in sunlight?
joeblowma said:
I haven't noticed anything on mine, though I tend to keep the backlight fairly low (17%).
One thought though which is why I'm saying anything, I remember on the nexus 7 there was an issue with one of the friction pins not connecting to the back of the case's antenna fully sometimes, which would cause the radio/wifi to suck extra power resulting in backlight pulses... have you tried turning on airplane mode (disable the cellular) with wifi off to see if that makes a difference? Though it would be odd if it only affected the one colour... I suppose it could be your ambient light source too, does it do it in sunlight?
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Good idea! Unfortunately, killing the antennas doesn't affect it. And there's no ambient light sensor on the g pad x, so that's out as well I'm so disappointed because there are not dead pixels and only very little light bleed in the corners too.
I didn't mean ambient light sensor would be the cause, more that perhaps you have bulb/s that cycle at a specific rate at a certain colour range that would cause a subtle flicker, I always found those big long roof fixture fluorescent tube lights bad for this sort of thing... I notice some "out of the corner of my eye" subtle flickering on my PC LCD when I have the one CFL on, but not when I have the other LED lamp going instead for example. I just tried a LCD screen tester with various solid colours (cyan, blue) and the only 'flickering' I'm seeing is if I actually move the screen, this panel has some waviness in it that is visible when the screen is off and you angle it just right under a light which seems to pop out on these blues with the backlight turned up - but only when the screen is physically moving. Definitely not a perfect panel, but for me nothing like what you are talking about.
I'm outta ideas though, unless you are running a custom firmware and it does something different than what my stock does.
GL
edit:/ just read that RFD post from the other thread, and I definitely notice a flicker when in nova's app drawer. It seems to occur only right after I move the tablet and only noticeable at higher backlight settings, if I set it down flat and don't move it, it doesn't do it. Perhaps related to the gyro sensor? Something not isolated fully/properly would be my guess. With the wifi turned on, it also does it along with the activity up/down arrows on the logo... now that I've seen it I wonder if its going to bother me on lower brightness levels now :silly:
joeblowma said:
edit:/ just read that RFD post from the other thread, and I definitely notice a flicker when in nova's app drawer. It seems to occur only right after I move the tablet and only noticeable at higher backlight settings, if I set it down flat and don't move it, it doesn't do it. Perhaps related to the gyro sensor? Something not isolated fully/properly would be my guess. With the wifi turned on, it also does it along with the activity up/down arrows on the logo... now that I've seen it I wonder if its going to bother me on lower brightness levels now :silly:
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Thanks for checking. I tried the airplane mode setting, and I swear that fixed it. But then it came back after a few more toggles of data/wifi. Given that you're seeing it too and that others have reported seeing it as well in the RFD thread, I'm thinking it isn't a defect but rather poor design. There's little chance it would be this widespread and only on the exact same color combo for everyone. I think most people just never notice it since you're rarely just looking at a solid or mostly solid grey screen. I wonder if there's a way to disable the gyro on a stock/non-rooted gpad like mine? For me, it does it regardless of brightness level.
I've seen this on different devices too, so it's not just a G Pad X thing. I wanna say I've seen it on my Nexus 5 back in the day, but I've had many devices so it's hard to remember. But yep, noticed it happens on "grey" colors. It's much less noticeable with the brightness lowered. Never really bothered me so never posted about it.
emilyrugburn said:
I've seen this on different devices too, so it's not just a G Pad X thing. I wanna say I've seen it on my Nexus 5 back in the day, but I've had many devices so it's hard to remember. But yep, noticed it happens on "grey" colors. It's much less noticeable with the brightness lowered. Never really bothered me so never posted about it.
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My guess is it's the led pulse width modulation. It affects some screens more than others, but is an issue with led implementation on lcd screens in general. I'm leaning towards keeping the tablet as I'm 99% convinced that another unit would exhibit the exact same behavior. Glad to hear it isn't a defect, but sad that they did not manufacturer a better screen.
Jottle said:
My guess is it's the led pulse width modulation. It affects some screens more than others, but is an issue with led implementation on lcd screens in general. I'm leaning towards keeping the tablet as I'm 99% convinced that another unit would exhibit the exact same behavior. Glad to hear it isn't a defect, but sad that they did not manufacturer a better screen.
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I don't want to clutter this thread any further, but I'm going into a B&M t-mo store to see if I can test this out on a display device to confirm how widespread this issue is.
Quick update on the flicker issue. It's a problem with all the units, or perhaps just poor design. I did a warranty exchange, and the replacement unit had the exact same issue. Oh well. Just time wasted I guess.
I have the same exact issue with the one i got my mom. Fortunately it doesn't bother her too much but it definitely seems to be a design flaw as we also returned it with the return unit having the same issue
Welcome to the world of flicker.
What you are seeing is very common and an unfortunate side effect of cheap reference designs and a don't care attitude.
There are many new standards for flicker but I doubt they'll be implemented. Flicker pwm needs to be in the 10khz range to be indistinguishable to constant current drives.