Related
I've found out, that the Amoled can't display perfect black. I tried the desktop clock thing, the blackle Google page (scrolled to black only area), and I made a photo in PhotoShop completely black and open it up in gallery.
What I noticed is, that the screen still is displaying something when it should be black. This is very easy to see if you put the phone to sleep when displaying such black.
What am I missing? Doesn't the Amoled completely turn of a pixel that is black? Can someone try to replicate this?
Do you think it's possible that I have an lcd desire and just don't know it?
Sent from my HTC Desire
I have also a Hero (with lcd display) and black on my Desire is "more black" than Hero's
For me it's ok
If you look at LCD screens through a circular polarisation filter you'll sometimes see coloured patterns on it, or it will get completely filtered out at a certain angle. To the best of my knowledge, OLEDs don't emit polarised light, so if you've been to see Avatar or another movie in Real3D and walked away with the glasses then you can use them as an LCD detector...
(The blacking out effect works as a cool CSI-esque monitor dust detector)
No disrespect, but... who cares???
So the blacks are not as deep as say, a Kuro plasma. This is a smartphone, not a home theater tv.
Jaa-Yoo said:
No disrespect, but... who cares???
So the blacks are not as deep as say, a Kuro plasma. This is a smartphone, not a home theater tv.
Click to expand...
Click to collapse
no disrespect but,...
well real black "off pixel" don't use power so all the people who care about batterylife might care...
s.
I don't think they do emit light on blacks. I have noticed that in a completely dark room I can't see blacks on my Desire at all, it emits no visual light. Maybe the black you were testing isn't pure black.
Sent from my HTC Desire
"It's like, how much more black could this be? And the answer is none. None more black."
Couldn't help myself
Sent from my HTC Desire using XDA App
I do agree that it is much better than any lcd. BUT black should be no light at all. When you turn off the screen when all the pixels are supposed to be off, you see a change. You can also see the outline of the screen when it is in any of the previously mentioned methods of darkness.
Sent from my HTC Desire
I did the following test :
- found a room where I could be in complete darkness
- used the following enclosed file (a pure RGB=(0,0,0) 800x480 png file) and displayed it fullscreen on my phone.
- use the palm of a hand to cover the 4 lit buttons
- the screen is pretty damn BLACK ! (an LCD screen, next to it, also displaying black pixels, would look like a torchlight)
- After a minute or so, the eyes getting used to the darkness, I could very slightly see the screen. I don't know how the phone is built, but I'm guessing it's a light "leak" coming from the LED(s) of the 4 buttons.
I tried this procedure at various brightness settings (from min to max) : the remaining light coming from the screen did not change.
Is there a mod to kill the buttons backlight ?
It is possible to kill the backlights, but have not tried it myself.
http://forum.xda-developers.com/showthread.php?t=704977&highlight=buttons+backlight
Ok, switched off the buttons backlight thx to Flaggie. The screen indeed still emits some light when displaying a full screen black picture. Strange.
It would be interesting to get an explanation from HTC about this, but i'm pretty sure it pointless hoping they would reply to such a question. I'll give it a try...
Perhaps you hae one of those new Desire models with a LCD screen?
No, I bought it the day it came out. Try out on your own. The test I detailed is pretty straight forward...
kekkle said:
Perhaps you hae one of those new Desire models with a LCD screen?
Click to expand...
Click to collapse
That is what I thought at first, but than the amount of light on dark would change when you change the brightness.
I want to know what HTC has to say about this.
PS: I bought my phone in June.
Sent from my HTC Desire
OMG does any of you know how a led screen works? lol Active Matrix Organic Light Emitting Diode its name clearly states that the pixels are self-illuminating so clearly unless the screen is of the display is always going to give some light off
It is actually the other way around. They are self emitting, they can turn off. LCDs, however have a backlight, which doesn't turn off, so some light still passes through.
Sent from my HTC Desire
OLED can havae infinate contrast ratios. I have a cowon s9, it has an OLED screen and in a pitch black room you cannot tell it's on. The desire does emit some light even on true black :-/
AndroHero said:
OMG does any of you know how a led screen works? lol Active Matrix Organic Light Emitting Diode its name clearly states that the pixels are self-illuminating so clearly unless the screen is of the display is always going to give some light off
Click to expand...
Click to collapse
OMG please read the Wikipedia article...
Unlike over saturated colors and Pentile jagginess which are clearly visible and to some point distracting (at least to me) this seem like pure academic issue, since it can be visible only in total darkness and even then it is not visible unless screen is completely black.
What would be practical purpose in looking at black screen in darkness?
vlasac said:
Unlike over saturated colors and Pentile jagginess which are clearly visible and to some point distracting (at least to me) this seem like pure academic issue, since it can be visible only in total darkness and even then it is not visible unless screen is completely black.
What would be practical purpose in looking at black screen in darkness?
Click to expand...
Click to collapse
I agree. This is an academic issue, but aren't you a bit disturbed by the fact that there has been soo much talk about this oled screen and its pure black, and it was all a lie?
I think the problem might be in the image to screen processing where it gets converted to the pentile matrix(and over saturated).
Sent from my HTC Desire
Hello everyone, today I've noticed that on landscape mode my GN has a lighter and brighter vertical line of pixels on the left side, if I turn the phone on the left; if I turn the phone on the right it doesn't happen and everything is fine on both sides. It is really annoying me and I can't say if it is the first time it happens or this kind of issue has been always there. It can be noticed only with white or light backgrounds and in EVERY photo, if brightness is switched to max it is hard to see but with automatic or half brightness is pretty clear.
I tried to screenshot it but I'm afraid this is something hardware since it doesn't show on screenshot.
Anyone else with the same problem?
http://imageshack.us/photo/my-images/542/img5505n.jpg/
http://imageshack.us/photo/my-images/208/img5503n.jpg/
Is it green? I have a similar issue. I think it's a case of screen burn.
Sent from my Galaxy Nexus using Tapatalk 2
bar_rodoy said:
Is it green? I have a similar issue. I think it's a case of screen burn.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
See the attached pics...I didn't manage to attach them to my first post.
I think its related to the screen burn issue. I have somthibg similair too, but it noticeable only on white background. I see green color there..
Sent from my Galaxy Nexus using Tapatalk 2
That's covered under warranty. Get it replaced.
Sent from my Galaxy Nexus using xda app-developers app
Smokeey said:
That's covered under warranty. Get it replaced.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Do you know how this thing is technically called?
La Rascassa said:
Do you know how this thing is technically called?
Click to expand...
Click to collapse
I think I have the same issue. Don't know if I should go and get a replacement. It also only shows on white background while browsing.
EDIT: The captured screenshot doesn't show this, so no point in uploading it.
bozint said:
I think I have the same issue. Don't know if I should go and get a replacement. It also only shows on white background while browsing.
EDIT: The captured screenshot doesn't show this, so no point in uploading it.
Click to expand...
Click to collapse
Took it to assistance. It'll be back in 10 working days and since I don't have something not even similar to replace it I'm stuck with an old Sony Ericsson W205...what a nightmare!
La Rascassa said:
Took it to assistance. It'll be back in 10 working days and since I don't have something not even similar to replace it I'm stuck with an old Sony Ericsson W205...what a nightmare!
Click to expand...
Click to collapse
At least you can replace it. I am from Israel and I bought the Gnex in the US directly from Google. I noticed this problem a day before I went on the flight so I didnt have much time to replace it. But it doesnt much bother me. I know that those Super AMOLED screen have too much problems... Just live with it right now.
i have the same issue right now.
For replacing the GNex i had to go in a samsung point or they come to my home for took it?
La Rascassa said:
Hello everyone, today I've noticed that on landscape mode my GN has a lighter and brighter vertical line of pixels on the left side, if I turn the phone on the left; if I turn the phone on the right it doesn't happen and everything is fine on both sides. It is really annoying me and I can't say if it is the first time it happens or this kind of issue has been always there. It can be noticed only with white or light backgrounds and in EVERY photo, if brightness is switched to max it is hard to see but with automatic or half brightness is pretty clear.
I tried to screenshot it but I'm afraid this is something hardware since it doesn't show on screenshot.
Anyone else with the same problem?
Click to expand...
Click to collapse
I have the exact same issue on my Galaxy Nexus. The same row of pixels (along the top-edge). It's not visible in portrait mode because the notification bar is black and the pixels are switched off.
Here's the kicker: since this afternoon, the row of pixels are switched on even when the background is black. They appear as a faint line and become brighter when there's a background image. I put the phone under a magnifying glass and there appear to be three such rows, not one. It could be the pentile matrix playing with my eyes since the pixels are too small to see even with a (low power) magnifying glass, but there's definitely more than one row.
Anyone else?
jackerhack said:
I have the exact same issue on my Galaxy Nexus. The same row of pixels (along the top-edge). It's not visible in portrait mode because the notification bar is black and the pixels are switched off.
Here's the kicker: since this afternoon, the row of pixels are switched on even when the background is black. They appear as a faint line and become brighter when there's a background image. I put the phone under a magnifying glass and there appear to be three such rows, not one. It could be the pentile matrix playing with my eyes since the pixels are too small to see even with a (low power) magnifying glass, but there's definitely more than one row.
Anyone else?
Click to expand...
Click to collapse
Can you post or link a picture? I mean under a magnifying glass, just to see how it looks like...ehm not sure if it is possible though
I am having the same problem on mine too. There are these streaks that runs across in landscape or portrait. it's more noticable in a grayish white background. It's very easy to see with a screen test app that shows one color on the whole screen. Lately, I also notice the very top and bottom line of pixels like would lit up brighter. For example, when i touch the context buttons at the bottom, bottom pixels of the buttom would lit up bright white.
Edit: clariification, it's the same lines of streaks if held in portrait, it would go across. when in landscape, the same streaks goes to to bottom.
I also have a lighter vertical line of pixels on the side of the screen when in landscape. The interesting thing, though, is that it is on the left, regardless of whether my phone is in landscape with the power button on the top or the button. either way it's on the left of the picture. So I don't think it's a hardware issue. More likely a calibration issue?
I also have horizontal banding of slightly different shades in portrait on grey/white backgrounds (eg: facebook app). These become harder to see the more brightness I turn up.
Yep, have it too...
Now I'm deciding whether to go to the Service Center....
Other than that small line, the phone is perfect so i guess i won't bother..
salem_christ said:
I also have a lighter vertical line of pixels on the side of the screen when in landscape. The interesting thing, though, is that it is on the left, regardless of whether my phone is in landscape with the power button on the top or the button. either way it's on the left of the picture. So I don't think it's a hardware issue. More likely a calibration issue?
I also have horizontal banding of slightly different shades in portrait on grey/white backgrounds (eg: facebook app). These become harder to see the more brightness I turn up.
Click to expand...
Click to collapse
I got the entire screen replaced by Samsung Italy. 100% hardware issue
i have the same issue... but i think it is not "burn in", it is just a pixel line brighter than the rest, in my case it shows all the colors as it should, just brighter.
Strange...
A couple of weeks ago I noticed the topmost line of pixels of my Gnex is miscoloured or brighter than normal, and yet sometimes displays correctly, usually when black.
Sent from my Nexus 7 using XDA Premium HD app
I noticed it's on the bottom too. Maybe some backlight problem or something... But sometimes it changes colour due to shades changing, it's like in half shades it's shining more and in other half it's darker. Like some software compensating. There's other colours, but blue looks differently.
Just wondering if anyone has the new version yet and knows if the screen is polarized and if so, in what direction. I have a first gen that I got a while ago that is destined for an install in my car. However the screen is invisible in landscape mode with polarized sunglasses so I've been holding off installing it.
No no that's not a feature of the screen, if the screen were polarized in a specific direction that would make the viewing angles horrible. You'd only want to view the device in that direction.
Your sunglasses are basically blocking out any incident light so it really shouldn't matter what device you use you're going to get the same result
Sent from my Nexus 7 using xda app-developers app
SWOLEGASM said:
No no that's not a feature of the screen, if the screen were polarized in a specific direction that would make the viewing angles horrible. You'd only want to view the device in that direction.
Your sunglasses are basically blocking out any incident light so it really shouldn't matter what device you use you're going to get the same result
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
So just to confirm, the screen in the new gen isn't polarized like the last?
FWIW the polarization doesn't affect viewing angles, it affects what rotations the screen can be viewed (if you are wearing polarized glasses). Sorry to nitpick about wording if that's what you meant. Also I have no idea what you meant by the last statement or how it applies to this question.
Ryan_Mc said:
So just to confirm, the screen in the new gen isn't polarized like the last?
FWIW the polarization doesn't affect viewing angles, it affects what rotations the screen can be viewed (if you are wearing polarized glasses). Sorry to nitpick about wording if that's what you meant. Also I have no idea what you meant by the last statement or how it applies to this question.
Click to expand...
Click to collapse
To simply answer you question.......The new N7 is the same. Cant see anything in landscape and portrait viewing is unaffected by polarized glasses.
Well that sucks but thanks for the info. All the other mobile devices I have are at least polarized on a 45 degree angle so they can be used in either direction... albeit dimmed quite a bit. I'm a little surprised Google didn't do this.
Ryan_Mc said:
Well that sucks but thanks for the info. All the other mobile devices I have are at least polarized on a 45 degree angle so they can be used in either direction... albeit dimmed quite a bit. I'm a little surprised Google didn't do this.
Click to expand...
Click to collapse
You can buy your own polarization films to have the same or even better effects.
gnuelxela said:
You can buy your own polarization films to have the same or even better effects.
Click to expand...
Click to collapse
At the risk of spreading misinformation... yes there are polarizing films you could put on but it would not have better effects. As I've been informed the polarization of this display is unchanged from the original N7, or polarized in portrait mode in the long axis. Adding a polarizing film at 45 degrees will not repolarize the display to that axis, but will block some of the light coming from the display... only guessing here but probably block approx 50% when viewed naked eye. When viewing through polarized glass like sunglasses the result would still be the same polarization, except what ever you see would be dimmed by the amount that the polarizing film subtracted. I assume there would be a bit of scatter from the film that would randomize the polarization that would negate the effect a bit but I doubt it would be noticeable.
I have a Ray-Ban polarized sunglass.
When I was looking a the screen in portrait mode it looks fine....
But in landscape mode the screen is invisible... Looks like the screen is off. Very strange....
How come is that? Never had that with HTC or other device.
Something to do with screen filter?
I dont have a technical answer but It is due to the way polarized lenses filter and the way the screen is made. It happens with every ips LCD screen I've used. I know you say it didn't happen on your htc but it did to me w my m7. Interestingly, it happens on my wife's iPhone in portrait.
As mentioned, it happens with polarized sunglasses. LCD screens polarize the light. The screens are built so they are viewable in one orientation with polarized glasses. Unavoidably, if you rotate the screen left/right 90 degrees, the light becomes blocked by polarized glasses.
OLED screens (such as used on my Galaxy S3) do not work the same way (they don't polarize the light), so they do not exhibit this behavior.
You'll likely see this phenomenon with any LCD screen (even a B&W display on something like a digital kitchen timer/clock, etc) and polarized glasses.
*justintime* said:
I have a Ray-Ban polarized sunglass.
When I was looking a the screen in portrait mode it looks fine....
But in landscape mode the screen is invisible... Looks like the screen is off. Very strange....
How come is that? Never had that with HTC or other device.
Something to do with screen filter?
Click to expand...
Click to collapse
LOL I just noticed the same thing yesterday when I drove into the City then back home. And I was going to post about it now. LOL. I'm my case it took about half hour while driving that I noticed it was due to the glasses. First thought the screen has an issue. but its just as you say, its polarized sunglasses. Weird!!
With the M7 it's not the case... So that's why I was ver surprised....
The nexus 7 2013 has the same "issue".
*justintime* said:
The Nexus 7 2013 has the same "issue".
Click to expand...
Click to collapse
Yup, in landscape mode. It's viewable in portrait mode using polarized glasses.
I have had this issue with every DSLR camera screen I've ever shot with also - in addition to every phone I've had. Like stated, it's got something to do with the way the sunglass lens filters light.
I just got this screen protector that completely eliminates the issue - landscape is now no different than portrait through polarized sunglasses.
Has anyone worn a bright white face here yet using WM? Every time I set a bright white face, the screen flickers a little when dim mode is active. It is so hard to see it but it's definitely there. I have troubleshot for 12+ hours and have determined that it just can't be a hardware issue because any other bright face is fine and in normal/non-dim mode, everything is perfect! Plus, when I use a chronograph with bright white dials, the flicker isn't there at all. I know one thing: I'm NOT RMA'ing this thing until the 11th month OR if ti fails, lol. Thanks in advance for your input!
Yes, I have seen this too. It only happens with a white face in dim mode.
I don't think it's a big deal as I am not sure that we should be using a white face in dim mode, as it "could" cause burn in (but not sure about that).
I have the same thing on my watch. I tought it was my Android phone at first so I did a factory reset on the watch and tried it on an iPhone 6 running iOS 9 and still saw this issue.
You can clearly see the flickering on Catchcat watchface app. https://play.google.com/store/apps/details?id=dd.watchdesigner.catchcat
It's really annoying and I'm hoping there's a software fix so I don't have to return my watch.
Would this also happen on the moto 360 2nd Gen? I know the screen is not AMOLED...
Thanks guys, I was starting to think it was me since no one else saw it when I posted on G+! I'm hoping it is a software issue at this point.
Hey Jeff! Just chiming in here. Like you, I do change up my faces and have tried to troubleshoot and replicate the flicker. I think my eyes are going so I don't really notice it. Did you try using the animation boost in Watchmaker to see if that does anything? I personally think it's a refresh issue, because of the res of the Huatch, it can't handle it when going into dimmed mode. Just thinkin out loud lol.
kpjimmy said:
Hey Jeff! Just chiming in here. Like you, I do change up my faces and have tried to troubleshoot and replicate the flicker. I think my eyes are going so I don't really notice it. Did you try using the animation boost in Watchmaker to see if that does anything? I personally think it's a refresh issue, because of the res of the Huatch, it can't handle it when going into dimmed mode. Just thinkin out loud lol.
Click to expand...
Click to collapse
Hey, long time to hear I definitely misunderstood you on that one...I thought you meant the bright>dim animation transitions, which I don't use. I actually didn't try the animation boost yet under settings, will try that! For the record, I still find this to be my favorite smartwatch:good:
tgcid2040 said:
I have the same thing on my watch. I tought it was my Android phone at first so I did a factory reset on the watch and tried it on an iPhone 6 running iOS 9 and still saw this issue.
You can clearly see the flickering on Catchcat watchface app. https://play.google.com/store/apps/details?id=dd.watchdesigner.catchcat
It's really annoying and I'm hoping there's a software fix so I don't have to return my watch.
Would this also happen on the moto 360 2nd Gen? I know the screen is not AMOLED...
Click to expand...
Click to collapse
The Moto 360 2 has a very "dim" ambient mode so no, it definitely will not flicker but who cares when you can't even see it, LOL. Please let us know if you decide to return it and/or contact Huawei about this.
There is one solution that works quite well.
Place a solid black circle on the top layer (actually below the hands layer).
Make the layer dimmed only.
Use opacity to suit eg 60%.
When watch goes to dim or wakes up from dim, the flicker will be much less noticeable.
niteowl360 said:
There is one solution that works quite well.
Place a solid black circle on the top layer (actually below the hands layer).
Make the layer dimmed only.
Use opacity to suit eg 60%.
When watch goes to dim or wakes up from dim, the flicker will be much less noticeable.
Click to expand...
Click to collapse
Nice to see you here too The flicker only occurs when a white face is sitting in dim mode. (not the transition) What's really odd is the fact I can still see the flicker after adding a circle at 80% opacity in dim only...weird issue. (almost like it cant handle any whites in dim mode/low power mode) As I mentioned on Google+ it's not a big deal, I never wear white faces. (was just testing them) Thanks anyway!
niteowl360 said:
There is one solution that works quite well.
Place a solid black circle on the top layer (actually below the hands layer).
Make the layer dimmed only.
Use opacity to suit eg 60%.
When watch goes to dim or wakes up from dim, the flicker will be much less noticeable.
Click to expand...
Click to collapse
Great, it works :good:
Great. Thanks for feedback. Cheers
My watch also flickers but only in sunlight. If I'm somewhere indoors I can barely see it but its definitely there. It also happens with black watchfaces and white numbers. Anyone with the same problem?
I know this is old post, but mine also does that. Black face with white numbers and hands. It flickers only when outside in sunlight.
So what's the solution? I modify my watchmaker face to put a black circle with an opacity on top of everything?
Again, sorry for raising a dead thread, but these are my thoughts:
I think the hwatch is just lowering the refresh rate of the screen in dim mode as to preserve battery life. Instead of running at 60hz it's probably clocking down to 30hz or something of that nature.
Just a guess.
My Huawei Watch slightly flickers when activate the dimmed mode. Only in faces with clear backgrounds
pretty sure some talanted dev can just look into the kernel/settings because its just a refresh rate setting.
I think its absolutely normal unless its literally flickering right infront of your eyes all the time...it depends when your eyes catches the screen (on a white background ) the level of degree you see it. Im sure it flickers but our eyes cant see it
Sent from my SM-N920T using Tapatalk
My watch has the same thing but you can see the flicker really good when using a white watchface in dim mode.
So this is "normal" and i don't have to RMA it?
Check flickering under normal light. Outside. Mike
Great "fix"
niteowl360 said:
There is one solution that works quite well.
Place a solid black circle on the top layer (actually below the hands layer).
Make the layer dimmed only.
Use opacity to suit eg 60%.
When watch goes to dim or wakes up from dim, the flicker will be much less noticeable.
Click to expand...
Click to collapse
Thanks ! That's an easy and effective fix...