Anyone else notice any slight dimming of the backlight around the bottom edge of the screen, as if the backlight doesn't quite reach or doesn't fully illuminate that part of the screen? Mine is very subtle, but noticeable in the bottom-left corner. The average person probably wouldn't notice it right away, but once you use it for a few minutes in an app with a white background, it's pretty obvious. I haven't owned an LCD based device in a few years, so not how common this issue is these days. I wish the OCD part of me could just ignore it.
ydoucare said:
Anyone else notice any slight dimming of the backlight around the bottom edge of the screen, as if the backlight doesn't quite reach or doesn't fully illuminate that part of the screen? Mine is very subtle, but noticeable in the bottom-left corner. The average person probably wouldn't notice it right away, but once you use it for a few minutes in an app with a white background, it's pretty obvious. I haven't owned an LCD based device in a few years, so not how common this issue is these days. I wish the OCD part of me could just ignore it.
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I've noticed the same thing, it's also more apparent with power saver mode enabled. It was happening to the models at the store as well so I guess it's just how it is.
Related
I just got a tilt about a week ago and ive noticed that in the middle of the screen there seems to be a purple greenish tint when put against incandescent light. The size of said glint varies in size but i'm unable to see what changes the size. Not sure if its heat or pressure or something. The touch screen works perfectly its just really annoying to always see such an annoying glint.
An interesting discovery is that when i press all four corners of the screen it disappears and when i press in the middle of the little square it seems to spread out. I feel like theres some kind of material or something in the touch screen that is causing this due to pressure. I keep it in a hard case in my pocket so the screen isnt pressed on inadvertently.
I've searched the forum for any answers but i havent seen anything about it. Any response or help would be greatly appreciated. I'll try to get a picture of it up asap but i left my camera at a friends house and dont know when im getting it back...thanks in advanced
~sayazs
Do you see the same "annoying glint" under neon light (not day / sunlight)?
Lots of NOKIA and SONY ERICSSON phones for example get this screen recolorization under direct sunlight - this has nothing to do with the screen being defective but with the plastic above the screen which breaks the light and shows you this colored spots. If you can't see the same spot under direct neon light then this might be the cause.
It is normal that you get color changes while pressing the screen in. First of, you press / bent the protecting plastic and the liquid within the screen which causes the incoming light to break in a different angle, therefore the color changes. (BTW: you shouldn't do that too often, it can cause permanent stains on your screen!).
There sure is the possibility that your screen gets pressure from underneath due bad assembling! If you're still under warranty, try to get a replacement.
yeah you cant see it in day light. but i feel as though there is constant pressure on the screen between the plastic and liquid since the spot is always there and doesnt really go away (unless of course in daylight).
well im thinking im going to go back for a replacement. thanks for the quick answer!
Recently, I noticed the is a strange circle in the middle of the screen. When the screen backlight is off, it appears as a black circle. When the screen backlight is on, it appears as red/yellow/black ring. Somtimes it went away by itself, and other time I have to "wipe" it away with finger force.
Anyone know what is wrong?
2 questions
1) Have you tried removing the screen protection just to see whether its on the screen protection or on the main lcd screen
2) did you ever exposed lcd it to high electromagnetic waves??
1. I didn't remove the screen protector as I believe it's beneath the LCD film.
2. I don't think it has been exposed to any electromagnetic waves, as it appears after I pulled it out from my pocket.
I've had it too but it's gone now
I had the exact same problem a few weeks ago. The place I stayed was not well ventilated and I THINK it caused some water condensation to occur between the digitizer and lcd screen. I slept in an air-conditioned room the next day and it was gone!
My deduction is that you need a cool or cold environment for the stain to evaporate.
The same problem arises again, and this time it has been a couple days but it still did not go away.
It looks almost like a burn mark.
You may have a defective digitizer.
Found another thread talking about this:
http://forum.xda-developers.com/showthread.php?t=439410
This is the so-called 'Newton ring' in optics/Physics. It means that in that area, the thickness of LCD is slightly thicker/thinner than rest of the area. This is normally due to stress at that point. It is annoying but if there are no repeated color rings, like red/yellow/blue/red/yellow/blue, it should be fine. If you have alot of repeated color rings, the LCD may approach its life end.
frank.lui said:
This is the so-called 'Newton ring' in optics/Physics. It means that in that area, the thickness of LCD is slightly thicker/thinner than rest of the area. This is normally due to stress at that point. It is annoying but if there are no repeated color rings, like red/yellow/blue/red/yellow/blue, it should be fine. If you have alot of repeated color rings, the LCD may approach its life end.
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Thanks for the info. When you said it should be fine, do you mean it will disappear, or it just won't affect usability?
It may disappear if the stress is released, e.g., you push the area a bit or you put it into different temperature environment. But I doubt it will disappear for ever. It was not there in the first place then it came. This means some sort of stress/pressure built up there. It should not affect your daily use a lot. It is just a visual effect. But if it gets worse, the colour rings will become very dense and sharp. It will affect you visual. I had a phone pinged on LCD sometime ago. It had similar rings like yours. But it was so dense I could not see any thing behind it. I had to change it for £35.
Also I looked at another previous comment about the humidity. It could give you the same effect. Maybe you can bake your phone a bit?
One of the first things I noticed about the NC was a faint grid of dots under the screen before turning it on. I also see a faint line making up the grid. Im guessing this is "normal" since its part of the screen. I never noticed this on other devices though. I dont notice it when the screen in on though.
I have noticed this too. It shows if you turn off the screen and look at it at an angle under light.
That is the touchscreen sensor, and is there on every capacitive device (whether or not you have noticed before is another thing)..
Looks as if I'm going to have to join the return game on this device. I've been a very happy TF700 owner on CROMi-X for the last year and still had that WOW effect when I started playing with this tablet.
Until it got dark.... I mean - the attached picture is with the tablet in sleep mode!!!!! That's gotta suck the battery dry like nothing.....
Opened a ticket with Asus for what it's worth...
I'm going to update to 4.3 manually, but don't expect that'll do much.
Does anybody have something similar?
Edit: After about an hour of reading the screen dimmed and had dark shadows on both sides. I flashed the 4.3 update manually since the System Update wouldn't - now everything seems to be fine.
Light bleed gone when in sleep mode and no shadows either... ?????????
Weird, glad you got it sorted out.
Sent from my HTC One using Tapatalk
Wow - good outcome - never seen anything like that - keep your eyes on it obviously
sbdags said:
Wow - good outcome - never seen anything like that - keep your eyes on it obviously
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Unfortunately it's not resolved to the point that I feel confident to unlock.
I still have have weird and uneven dimming of the screen. Sometimes just part of the screen dims and shows a dark, uneven shadow across it (in reading mode). What I don't understand is, taking a screen shot in that situation shows nothing of the shadow....??
What I consistently see is when the screen times out, it dims just before it turns off, but only on part of the screen (more or less the left half, but fading out from left to right).
Smart Saving is off.. Can't think of anything else to try...
I'd hate to return it, but I think I'll have to - this does not inspire confidence....
berndblb said:
Unfortunately it's not resolved to the point that I feel confident to unlock.
I still have have weird and uneven dimming of the screen. Sometimes just part of the screen dims and shows a dark, uneven shadow across it (in reading mode). What I don't understand is, taking a screen shot in that situation shows nothing of the shadow....??
What I consistently see is when the screen times out, it dims just before it turns off, but only on part of the screen (more or less the left half, but fading out from left to right).
Smart Saving is off.. Can't think of anything else to try...
I'd hate to return it, but I think I'll have to - this does not inspire confidence....
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Smart saving has nothing to do with smart dimming unfortunately. You can only turn smart dimming off if you are rooted. I'd take it back and get a replacement as what you are seeing is not normal.
berndblb said:
Unfortunately it's not resolved to the point that I feel confident to unlock.
I still have have weird and uneven dimming of the screen. Sometimes just part of the screen dims and shows a dark, uneven shadow across it (in reading mode). What I don't understand is, taking a screen shot in that situation shows nothing of the shadow....??
What I consistently see is when the screen times out, it dims just before it turns off, but only on part of the screen (more or less the left half, but fading out from left to right).
Smart Saving is off.. Can't think of anything else to try...
I'd hate to return it, but I think I'll have to - this does not inspire confidence....
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Never seen this on any tablet.
To me it seems that some parts of the Led backlight are not working correct or totally not.
Better try to get it swapped or Rma'd ASAP.
R.I.P
I was filling out the Amazon return form and picked it up 'cause I got a notification about new mail - and that's when the digitizer gave up completely.
I was able to wipe my data by hooking it up to the TV and got it to reset with a lot of huntin' and pecking.
A replacement is on it's way. You gotta love Amazon :cyclops:
Hi,
Has anyone notciced un-even brightness across the screen at low light levels (for darker colors)? I thought it was just the nature of these OLED screens, but I don't see this with Galaxy Phone with similar display type, so I'm wondering if I just have a defective unit with bad display.
To test it:
- Do this at night (when ambient light is fairly low).
- Lower brightness down to the lowest setting (turn off auto-brightness)
- Open Chrome browser, and close all tabs, so that you get a blank dark screen with just the "+" icon. This leaves a dark gray background, just enough to notice if there is any uneveness in brightness.
On my unit, I see about 3-4 inches of bands/streaks of darker areas at bottom half of the screen. If I rotate the tablet, the darker areas stay in their physical location (so these bands become vertical instead of horizontal), so I know it's not a software issue.
I have a couple of weeks left before I need to decide on whether to exchange the tab, so would appreciate if anyone can help me verify if this is normal thing with these screens.
Many thanks, Tony.
tonyc1 said:
Hi,
Has anyone notciced un-even brightness across the screen at low light levels (for darker colors)? I thought it was just the nature of these OLED screens, but I don't see this with Galaxy Phone with similar display type, so I'm wondering if I just have a defective unit with bad display.
To test it:
- Do this at night (when ambient light is fairly low).
- Lower brightness down to the lowest setting (turn off auto-brightness)
- Open Chrome browser, and close all tabs, so that you get a blank dark screen with just the "+" icon. This leaves a dark gray background, just enough to notice if there is any uneveness in brightness.
On my unit, I see about 3-4 inches of bands/streaks of darker areas at bottom half of the screen. If I rotate the tablet, the darker areas stay in their physical location (so these bands become vertical instead of horizontal), so I know it's not a software issue.
I have a couple of weeks left before I need to decide on whether to exchange the tab, so would appreciate if anyone can help me verify if this is normal thing with these screens.
Many thanks, Tony.
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I have notice a similar thing, mostly on gray - dark gray backgrounds, and not necessarily at lowest brightness (low enough though). I wanted to check about it on a couple of devices on display at retail stores but it's hard to test there.
Sent from my SM-T815 using Tapatalk
Hi tonyc1,
Having had 4 of these I can confirm that this unevenness is normal on the 9.7" screen but was not present on the 8" model.
I went through 4 to get one that was reasonably even, 2 of them were pretty awful to the point that the greyscale was all over the place.
The unit I settled on has a slightly darker band in the middle of the screen and a slight darkening at the very top.
I owned the original tab s 10.5 and have to say the screen on that was more even and detailed, I prefer the former factor and speed of this S2 but the screen is a step backwards.
Hope this info helps.
Cheers
Thanks for the notes and confirming this is a somewhat common issue. I guess I will live with it for now..