Database Users

Moire pattern on screen

Whoops! Anyone else experiencing this?
It's worst in person, but I think the video kinda shows how it creates a moire pattern with just light tap on the glass. I noticed it when I tried to clean/wipe the screen and seen the pattern on the right side. It only happens on the right side though.
I'm a bit dissappointed as this is my second one, and the first one don't have this even if I put pressure on the glass. I know this one happens, but only with lots of pressure on the screen, but definitely not with just a slight tap.
I'm using my wacom stylus on this one, but it's the same effect with just my fingers, just to be clear.

Yes I noticed this on my XOOM as well, when I was installing my first screen protector. It's only visible when the unit is turned off, and only on certain parts of the screen. I had long since forgotten about it, as it doesn't affect my device at all when its turned on.
Edit: Just looked at your video - looks like you are having a problem while the unit is turned on - I don't see that much distortion with casual pressure while the unit is turned on with my XOOM.

Digital Man said:
Yes I noticed this on my XOOM as well, when I was installing my first screen protector. It's only visible when the unit is turned off, and only on certain parts of the screen. I had long since forgotten about it, as it doesn't affect my device at all when its turned on.
Click to expand...
Click to collapse
I wouldn't have mind if it's only visible when it's off, but this one is visible even when it's on (as shown on the video).

What you have is a little odd. Doesn't look right. I had a laptop that exhibited a similar pattern after it took a hit to the screen. If I would flex the screen or wipe it I would see a pattern like that. Never got any worse, but never got any better either.

Its probably a small capacitor behind the screen, if you apply too much pressure you can probably break the LCD in that spot, probably a design flaw from the screen manufacturer. You can try and return it but probably the next one will be the same.
Also Moire effect is a whole different than what you have on the video.
This is moire effect.
http://www.youtube.com/watch?v=Max5-hXkhwU

i had this, I returned my rooted xoom for one that didn't do that.

Yeah, if possible return it. Something is putting pressure on the screen right there and it could lead to it breaking at that spot in a situation that would not break a normal xoom. It's a manufacturing defect. The worst part is that nothing will likely be done about it and someone else will get the same unit with the defect still in it as a refurb since it's not a flaming obvious defect that keeps you from using the device.

I've had 3 different Xooms, and they all exhibited this effect to one degree or another. They were a 3G/4G unit I returned to get a wifi-only unit, and one I returned due to this problem. The one I have now also has it.
I first noticed it on the second wifi-only when I was cleaning the screen with the unit turned off, and then noticed it when I turned the unit on and pressed a little harder than usual. I checked the 3G unit, and it was the same. Others mentioned theirs having the issue on the Motorola forums, so it seems pretty consistent.
It seems to me that this is a design issue around screen support on the right side. It appears that there's a portion of the screen where the LCD can be bent that's different from the rest of the screen.

New Grey line on left side of my S4 screen

Hi all...
I have just notice two days ago a grey line on my screen...(left side)
Really noticeable on a grey screen (not for red/green but also present on blue, just less...). I have never noticed this before, despite of being several hours per day on my screen since several monce... No drop....
As you can see, small spots are also visibles, particulary on bottom left side (like "commons" dot on amoled screen). Its like a strip causing a little gradiant on left side (when looking very hard....)
I can see it on screenshot so it's a screen issue...
I saw a lot of thread reporting grey lines due to amoled technology, but i think my case is a little bit different...
Photos of my screen are here:
http://imageshack.us/a/img23/5032/rhhm.png
http://imageshack.us/a/img443/7329/j5gh.jpg
http://imageshack.us/a/img9/1260/lck4.jpg
Anywone have this issue? It's not very noticeable but enought to boring me... But for the moment i can deal with it...
Thx for your feedback..

Chewee91 said:
Hi all...
I have just notice two days ago a grey line on my screen...(left side)
Really noticeable on a grey screen (not for red/green but also present on blue, just less...). I have never noticed this before, despite of being several hours per day on my screen since several monce... No drop....
As you can see, small spots are also visibles, particulary on bottom left side (like "commons" dot on amoled screen). Its like a strip causing a little gradiant on left side (when looking very hard....)
I can see it on screenshot so it's a screen issue...
I saw a lot of thread reporting grey lines due to amoled technology, but i think my case is a little bit different...
Photos of my screen are here:
http://imageshack.us/a/img23/5032/rhhm.png
http://imageshack.us/a/img443/7329/j5gh.jpg
http://imageshack.us/a/img9/1260/lck4.jpg
Anywone have this issue? It's not very noticeable but enought to boring me... But for the moment i can deal with it...
Thx for your feedback..
Click to expand...
Click to collapse
If you use your phone a lot in landscape mode, the grey line could be screen burn in from the status bar. I have read about people claiming this can happen (not necessarily in landscape mode.) It looks to be the right width to suspect this.

Of course, i think you're right! I suppose the only solution is to change the screen right? It can be considered as a screen default for warranty?

[Q] Bad T230 screen?

So my wife got me the SM-T230NU for my birthday (end of September.) The screen quality isn't as expected. Seems like when I'm trying to read basic black text on white the screen is very grainy looking and hard to read. I went into Accessibility, changed the contrast size to medium, and manually adjusted the contrast. This seemed to help a little. In addition I seem to have, what I would say, is a lot of screen bleeding towards the upper right hand corner. No biggie, most devices have some. Unfortunately though what I just saw really concerns me. While doing a software update, it was on the black recovery screen with the android. I saw a smudge on the screen so I went to wipe it off. When I did so, about a quarter of the way down dead center, the screen started to flicker in an area about half inch tall and quarter inch wide. So I kept touching areas all around it and basically anywhere I touch on the upper half of the screen causes this. Have any of you ever experienced this before? If so, do you think this means that the screen is bad? I was going to just call Samsung but I wanted to see if anyone else had this on theirs. I couldn't find anything on Google. Thanks in advance!!

Weird burn-in issue on cm13

Hello, been visiting the boards for a long time, but I didn't register because I had nothing to contribute really. <.<
I currently have a i9505 running on cm13 6.0.1.
Last night when I wanted to reply to a text I used the right side lock screen shortcut that's set to messaging the circular motion thingy messed up the edge of my screen. (I didn't realize until later that it's not actually a hardware issue if you ask me.)
Some pictures, screenshots don't register anything:
CAN'T POST IMAGES because I'm a new user. :/
It's on imgur, with /a/Murqy extension after .com. Album of three images.
Messaging shortcut thingy on the second screen is a lock-screen burn in, as is lock screen in the middle of the first screen.
Sorry for the garbage quality screens, I don't have any other spare phone except for the ancient Sony Ericsson with me atm.
At first this obviously looks like some display issue or a burn-in. I've checked the display, it has absolutely no scratches.
I've also read about the quality issues of some S4 phones and glass+display being glued together which can lead to yellowish tint. And how display breaks easily because of bad build quality and too much pressure being put on the display itself.
Anyhow, ever since that brown/yellow thing appeared the right/left lock screen shortcut animations stopped showing. And that thing is the exact size of the lock screen shortcut animation.
Also, those three burned in lock screen buttons, phone/unlock/messaging aren't really burn ins. When I try to press any of them in the bugged state when the screen is already unlocked, the dropdown menu activates. Also when I use dropdown menu myself, those 3 buttons are instantly gone without leaving a trace. And when the dropdown menu is activated, the yellowish corner translates from the background to the menu itself. Icons on the home screen in the background aren't yellow anymore, but icons in the dropdown menu are.
So, I'm completely at loss what to do here. I don't wanna use one of those burn in removal apps to mess my phone up, I don't have a warranty because I got it used like less than a month ago and everything was working fine. And I don't wanna take it to a repair shop because they'll just tell me the display is messed up.
There's just too much coincidence here for me to believe it's a classic case of display burn in.
Why wouldn't lock screen shortcut animations show up anymore if that was the case? Even on the left side which is completely fine. And it just appeared out of nowhere when I used one of those shortcuts. As if animation is stuck in there.
Sorry for the wall of text, but wanted to explain it in detail as I couldn't find anything similar anywhere else. <.<

Perke- said:
Hello, been visiting the boards for a long time, but I didn't register because I had nothing to contribute really. <.<
I currently have a i9505 running on cm13 6.0.1.
Last night when I wanted to reply to a text I used the right side lock screen shortcut that's set to messaging the circular motion thingy messed up the edge of my screen. (I didn't realize until later that it's not actually a hardware issue if you ask me.)
Some pictures, screenshots don't register anything:
CAN'T POST IMAGES because I'm a new user. :/
It's on imgur, with /a/Murqy extension after .com. Album of three images.
Messaging shortcut thingy on the second screen is a lock-screen burn in, as is lock screen in the middle of the first screen.
Sorry for the garbage quality screens, I don't have any other spare phone except for the ancient Sony Ericsson with me atm.
At first this obviously looks like some display issue or a burn-in. I've checked the display, it has absolutely no scratches.
I've also read about the quality issues of some S4 phones and glass+display being glued together which can lead to yellowish tint. And how display breaks easily because of bad build quality and too much pressure being put on the display itself.
Anyhow, ever since that brown/yellow thing appeared the right/left lock screen shortcut animations stopped showing. And that thing is the exact size of the lock screen shortcut animation.
Also, those three burned in lock screen buttons, phone/unlock/messaging aren't really burn ins. When I try to press any of them in the bugged state when the screen is already unlocked, the dropdown menu activates. Also when I use dropdown menu myself, those 3 buttons are instantly gone without leaving a trace. And when the dropdown menu is activated, the yellowish corner translates from the background to the menu itself. Icons on the home screen in the background aren't yellow anymore, but icons in the dropdown menu are.
So, I'm completely at loss what to do here. I don't wanna use one of those burn in removal apps to mess my phone up, I don't have a warranty because I got it used like less than a month ago and everything was working fine. And I don't wanna take it to a repair shop because they'll just tell me the display is messed up.
There's just too much coincidence here for me to believe it's a classic case of display burn in.
Why wouldn't lock screen shortcut animations show up anymore if that was the case? Even on the left side which is completely fine. And it just appeared out of nowhere when I used one of those shortcuts. As if animation is stuck in there.
Sorry for the wall of text, but wanted to explain it in detail as I couldn't find anything similar anywhere else. <.<
Click to expand...
Click to collapse
I'm not familiar with burn-ins, but since it's a used phone the probability of the screen being messed up is high.
If it really is a software glitch, the only option would be to flash a different rom. If it continues, flash a stock rom via Odin. If the problem still persists, then it's most probably a hardware issue.
Remember, the flashes have to be clean flashes. As clean as possible. Dirty flashes won't help, especially when trying to find the root of a problem.

I've had it for nearly a month now and I didn't have a single issue.
As I've said, it's probably not a burn in because it just appeared like that due to one animation.
And since it's also there when I boot into recovery I don't think flashing a new ROM would help.

..

MuF123 said:
http://i.imgur.com/j4t9fEA.jpg
Is this gradient (around the icon) visible to naked eye? This is really nasty Just a guesswork: this could be one of failure modes for amoled. I have 8 weird rectangles burned in over the whole screen and really don't know where they came from.
Check this: http://forum.xda-developers.com/showthread.php?t=2603039 evidently even light from outside can burn in your screen.
Click to expand...
Click to collapse
Yea, it's visible.
That's the far right shortcut on the dock.
But the weird thing is that it just disappears if I try to click it.
Same goes for the lock screen shortcuts as I've said already, that's why I'm not sure it's a regular case of screen burn.
And when I pull down the dropdown menu, the color of the desktop goes back to normal, but dropdown menu icons in the bottom right turn yellowish, as if the tint translated to the screen that's being used at that moment.
After I realized that I tried to mess around with color saturation and brightness.
Changing brightness had no effect, lowering it would just make that corner darker, but as I dropped down color saturation on all of the RGB components more and more it became less and less noticable.
But the buggy lock screen shortcuts still puzzle me. They remain on the desktop after I unlock the phone, but are instantly gone as soon as I click them.
If it wasn't for that, I'd be pretty sure the screen broke because of bad build quality. I read about the display having too much pressure put on it, somewhat of a design flaw.
Gonna try that burn in app, what's the worst thing that could happen to a broken display. <.<

..

MuF123 said:
Does it disappear if you press and hold without actually doing something? Make a screenshot and display the image fullscreen as if it was lockscreen, will it happen again? While showing the screenshot, press and hold on the icon, any change?
Does all of the gradient disappear or just the icon burn in?
Click to expand...
Click to collapse
If I hold it, it actually works (eg taking me to messages or phone menu as if the screen was locked). It doesn't appear on screenshot, only after I unlock the phone. That's what's puzzling me, it's not actually burned in, it looks like an issue with the display when I change screens (from locked to unlocked or switching from desktop to broswer like in that screenshot with the burned in icon, as soon as I click it it also disappears, same as shortcuts).
And gradient gradually disappears as I lower the color saturation. Disappears fully at around 30% for all RGB components. But brightness is way too low then.

..

MuF123 said:
I know, I just wanted you to make your phone display the same content as if it was locked - but now the image would be screenshot and not the actual lockscreen... I know this sounds really wild, but I don't see any better troubleshooting ideas here
Click to expand...
Click to collapse
I get your point, like I'm leaning towards display issue but not a classic one but a weird one because it has issues with switching screens.
Idk, I'm gonna roll with this for a couple more days, if it gets worse it's definitely the display.

..

MuF123 said:
Just out curiosity - maybe you could make a video how this behaves
Click to expand...
Click to collapse
Maybe tomorrow if I find a half-decent camera.

Actually, I made a screencast.
https://media.giphy.com/media/3oGRFj88fgqgT3vWrS/giphy.gif
As you can see, after I unlock the screen, all three shortcuts are burned in.
When I press the burned in unlock icon it just briefly opens the dropdown menu (it wasn't me opening it at that point, when I clicked the lock screen icon in the middle)
Yellow tint in the bottom can't be seen on the video.

Defective drawing board

Hello
I have just noticed that the a little area in the upper left corner around the ESC and 1 key, has very poor sensitivity. I almost can't draw there, it's like the sensitivity drops in that small area. Has anyone else experienced this?

ClausG76 said:
Hello
I have just noticed that the a little area in the upper left corner around the ESC and 1 key, has very poor sensitivity. I almost can't draw there, it's like the sensitivity drops in that small area. Has anyone else experienced this?
Click to expand...
Click to collapse
Hi,
I have never noticed it before; but when I specifically searched for it, it is indeed there as you described. Sensitivity drops and cursor jiggles a bit.
I don't think this is much of an issue thou. Every drawing tablet I had had some kind of issues around edges. And, honestly, when you ever need to draw around edges? You simply move the canvas

Thanks
I suspected that this was a design flaw rather than a defect

I have the same problem and also there is a complete line with some important jitter when you draw slowly on it. I reproduced it on two different Windows Yoga Book, I did not have the opportunity to test it on Android.

Just went to the store where it's bought. I tested 2 Android versions, that was on display. And they acted in exactly the same way. So I think it's the way it's designed

Here is a picture of what happened if you draw lines with a rule. We can see a lot of jitter... Like if there is a line area that completely interfere with the pen. I also tried to follow the keyboard keys frames with the pen : it is obviously problematic in the corner we talked about.
Code:
https://drive.google.com/open?id=0B1Qu-HXdIAp0U0tvVWpRT016Tm8

This is a frigging design and hardware flaw. I had this issue with my previous YB as well. What were they thinking? It kills me. I want my money back. There are other areas with iesuse. pretty much upper %15 is full of issues, your lines might get wiggly!
It sounds like noone from Wacom or Lenovo tested these devices for real.