As some may know the LED under the trackball has been enabled by certain tweaks and apps on this forum.
Just wondering if anyone has any idea on what lifespan and usage worries would be for RGB leds ?
Would having them blink 30 times a minute while Im asleep ever have any adverse effects ?
Just curious.
A decent LED is expected to last at least 50,000 hours. If you left it on all day everyday it would last for a little over 2000 days, or something like 5 and a half years.
The Meaning of LED Light Lifespan Explained
When new products are launched, figures that indicate various specs of the device are thrown around in an effort to reel in consumers. Such is the case with LED lighting, most particularly its lifespan. One of the most impressive aspects of LED lights is that they could potentially last for years upon years of use. Unfortunately, according to New York Times, claims of 25,000 hours and up of lifespan confuse consumers.
For those not well-acquainted enough with LED light specs, it's easy to assume that when a manufacturer says a bulb will last this long, the product will die out by then. After all, for incandescent bulbs, a 1,000 hour lifespan means the bulbs are bound to fail around that time. For LED light bulbs though, a 25,000 or more lifespan means that during that time, the bulb will start to fade and would emit light that's only around 70 percent of its original brightness. The problem is that since lifespan of LED lights ranges from 25,000 to 50,000 and even up to 100,000 hours, nobody can give an accurate estimation of when the lights will completely give out. Not yet, at least, since LED lighting is in its embryonic stage.
The New York Times article warns that consumers are subject to surprise bulb deaths in the future because of that. For now, having consumers understand what lifespan means remains an issue; so much in fact, that Fred Welsh, a Department of Energy consultant believes it could be "a potential black eye for the industry."
Sources: http://www.lunaraccents.com/educational-white-LED-life.html
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Click to collapse
Ive read that before.
I wonder if the constant on/off has any effect to lifespan like a regular bulb. The on/off has drastic reduction effects in an incandescents life.
no... LEDs lifespan is unaffected by on/off cycles.
Red MacGregor said:
no... LEDs lifespan is unaffected by on/off cycles.
Click to expand...
Click to collapse
Correct, it is a solid state device... and before anyone ask what a solid state device is... google it...
not a problem
on/off is no problem, overdriving the circuit and duration are, but the function of this led in the trackball is such that it does not apply either. the led of the trackball should outlast the life of the phone. now on the other hand the flash in the rear may be susceptible to some heat issues with one of those apps like nexus torch which allows you to push the brightness above the recommended specs. but common scene would tell us not to abuse the flash.
Talderon said:
Correct, it is a solid state device... and before anyone ask what a solid state device is... google it...
Click to expand...
Click to collapse
hahaha aww you're no fun, i was waiting for someone to argue against me on that one...
Red MacGregor said:
hahaha aww you're no fun, i was waiting for someone to argue against me on that one...
Click to expand...
Click to collapse
Well, you know... can't always fight with everyone...
xManMythLegend said:
As some may know the LED under the trackball has been enabled by certain tweaks and apps on this forum.
Just wondering if anyone has any idea on what lifespan and usage worries would be for RGB leds ?
Would having them blink 30 times a minute while Im asleep ever have any adverse effects ?
Just curious.
Click to expand...
Click to collapse
I had a Motorola Rizr when they first came out for about a year and a half. It had an LED for camera flash. I had it modded to strobe quickly when the phone rang or I got an sms. I used that LED heavily for a year and a half and it never went out. LEDs have a very long life span.
Related
Just came across this:
Some Android phones are now shipping with OLED displays, such as Nexus One, the Droid Incredible, and the Samsung Galaxy. Organic LED displays have separate pixel elements for each color channel (red, green, and blue), and each channel has a different efficiency.
Take, for example, the Nexus One. If powering only the red pixels at full intensity draws a current “i”, then powering all green pixels draws “1.5i”, and all blue pixels “2i”. (These ratios are derived from empirical measurements, and don’t hold in all cases.) Also, it’s worth noting that OLED displays don’t have backlights like LCD, meaning that darker colors draw less power.
...
Filtering to show only red pixels only requires 35% of the original baseline OLED panel current, on average. Adding back the baseline current, the best case overall is about 42% of the original system current, effectively doubling the battery life. Also, showing only red pixels doubles as an awesome night vision mode, perfect for astronomy.
If you’d like some other colors added back in, the amber and salmon filters can help, while still offering about 56% of the original system current. It’s also worth noting that the Nexus One OLED display uses a PenTile pixel layout, giving it twice as many directly-addressable green pixels as red and blue. Thus the Green-only filter results in the visually sharpest text.
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Click to collapse
http://jsharkey.org/blog/2010/07/01/android-surfaceflinger-tricks-for-fun-and-profit/
I think it's a neat idea, it's a hardcore battery-saving trick and would surely make you look like a geek, but I could live with my screen being only red or green if I was going to write a text, read some rss feeds or basic text-only things like that.
Although I would be quite worried about shortening the life of the red AMOLED channel by doing this for a long time...
I saw that article on engadget today, i too would be very willing to go all red for that kinda current savings.
just read about this on androidandme, i would love to have this implemented for night viewing and what not.
I would think that you could also save quite a bit of battery power just by using white text on a black background for web pages and ebook reading instead of black on white.
malicious85 said:
just read about this on androidandme, i would love to have this implemented for night viewing and what not.
Click to expand...
Click to collapse
I too would like this feature. Just switch the black with white text to black with red text.
Red text against a black background is supposedly easier for your eyes at night, too. I can't find a source to back that up, but i seem to recall that the longer wavelength keeps your eyes dilated, thus better able to see at night.
vincentm said:
I too would like this feature. Just switch the black with white text to black with red text.
Red text against a black background is supposedly easier for your eyes at night, too. I can't find a source to back that up, but i seem to recall that the longer wavelength keeps your eyes dilated, thus better able to see at night.
Click to expand...
Click to collapse
^this. thats why spec ops have red flash lights. less strain on the eye + better vision
Very Interesting...would be a great feature
Real savings are much less since screen is not on all the time.
Sent from my Nexus One using XDA App
I hope some devs read about this.
Someone should forward this to Mister Cyanogen
I betcha his team could do something remarkable with this.
For some of the uses I'd like to use the OS for, this would have huge benefits.
I have also heard that the lifespan of the blue color in an amoled screen is significantly shorter than red and green, so maybe it could also be used to compensate this a little.
I really would love to see this included in a rom, let's hope some of the gurus here find it interesting too!
Cyanogen already added it yesterday in his mod http://github.com/cyanogen/android_development/commit/3d7046b51e7e08a66eb0958e7819b5961fee1484
eug89 said:
Cyanogen already added it yesterday in his mod http://github.com/cyanogen/android_development/commit/3d7046b51e7e08a66eb0958e7819b5961fee1484
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Click to collapse
great! I was always reluctant to use cyanogenmod due to its (perceived) battery usage, now this could be gone
make it an option when ur battery is below 15%, terminator mode.
Just experienced this weird thing so.wanted to let you guys know.
I am sure many of u will be using countless torch and heart rate monitor apps out there.
Today I was using heart rate monitor app for first time on this phone and the damn thing got so hot so quickly that out almost burned my finger tip after just 20 odd seconds.
Expecting something.might be wrong with the app, I started torch app, and same thing. It got hot.enough.to cause burn.
So just a friendly advice, dont use it for long period. Its getting too hot for my.comfort to even use it as video flash or torch for more than few seconds
Sent magically from Samsung Galaxy S 2.
tried "flashlight" and did not experienced the problems you mentioned. switched the LED on for 30secs, after that the LED wasn't even warm...
I just ran a flashlight app for a good few minutes didn't even get remotely warm. Was just as cool as it was without running the LED. So no issues (bar accidently blinding myself, christ that things bright)
Its more severe with heart rate monitor apps when your finger needs to be touching LED and camera lens.
None of the phones before this caused any discomfort using this app. But you cant keep your finger next to the LED of this phone.
Try it even with torch app, put your finger steady on the led and wait for 30 seconds.
I didn't even know LEDs could cause that much heat
OP - yes this LED heats quite well especially when you cover it with your finger to prevent heat dissipating.
Guys who claim your LEDs do not heat up - "you are doing it wrong" , all LEDs heat up, it is a physical process. Your battery heats up too when being charged or discharged rapidly. Your Amoled screen heats up too. Electronics - no current will pass through it without heating it up. How much is another question.
Exactly, this one heats up lot more when you cover it for apps like heart rate monitor compared to say DHD or Nexus S or any other phone I have used recently.
DHD will feel luke worm and stay that way regardless how long you use it.
This one gets toasty way too quickly.
You got it completely wrong, it's not a bug, it's a FEATURE. When you take the pulse of the unconscious person (surely after consulting the CPR app), the blistering heat of the phone LED will restart their heart!
2 FEATURES FOR THE PRICE OF ONE!
That's value if I ever saw it.
cigaro78 said:
You got it completely wrong, it's not a bug, it's a FEATURE. When you take the pulse of the unconscious person (surely after consulting the CPR app), the blistering heat of the phone LED will restart their heart!
2 FEATURES FOR THE PRICE OF ONE!
That's value if I ever saw it.
Click to expand...
Click to collapse
You got it wrong. You measure your heart rate, make sure you are still healthy, and then light up a cigarette with the LED lens.
What app is it to turn the led on ?
and there i was thinking i was the only one who couldn't handle the heat using the heart rate monitor apps, definitely gets much hotter than my desire ever did
eddie21 said:
What app is it to turn the led on ?
Click to expand...
Click to collapse
There is many flashlight apps on the market. A light one I am using - Search Light
Also try out the Heart Rate Monitor mentioned by the OP in this thread - this is the app where you hold your finger to the camera covering the LED light.
Have you thought about sending the Dev of the heart-rate app a request for them to add a bit of functionalitly to adjust the light output of the LED ?
I suspect that the LED is a much, much higher rater Lumen output unit compared to all other phones. This provides all of us with better 'flashes' when taking photos. The heart rate monitor apps will not need all that light to just shine into the skin to detect the color changes as blood pulses through the capilaries. I bet you that the heart-rate monitor app developers never considered that they'd have an LED that bright to use. So a simple way to fix it would be to have a setting in the app that you adjust to get the LED only as bright as absolutely necessary. You then save the setting, and from then on the app only turns the LED on to that brightness. This would then stop the LED from heating up so quickly.
The only flaw in my above plan / suggestion is that I don't know if the LED brightness can be adjusted.
mduncan2 said:
Have you thought about sending the Dev of the heart-rate app a request for them to add a bit of functionalitly to adjust the light output of the LED ?
I suspect that the LED is a much, much higher rater Lumen output unit compared to all other phones. This provides all of us with better 'flashes' when taking photos. The heart rate monitor apps will not need all that light to just shine into the skin to detect the color changes as blood pulses through the capilaries. I bet you that the heart-rate monitor app developers never considered that they'd have an LED that bright to use. So a simple way to fix it would be to have a setting in the app that you adjust to get the LED only as bright as absolutely necessary. You then save the setting, and from then on the app only turns the LED on to that brightness. This would then stop the LED from heating up so quickly.
The only flaw in my above plan / suggestion is that I don't know if the LED brightness can be adjusted.
Click to expand...
Click to collapse
This is a good idea, bu I bet hard to implement. Agree on your last point. According to comments on that particular app that I linked above, the dev has problems switching ON the LED on the huge number of Androphones out there. Every phone would have a proprietary LED with its own driver, and I am guessing limited Android API directly for the LED? I am not a dev though , can't speak to this with authority.
turned on the led with flashlight app but after 2min i got bored. Im not sure if the led warmed up or my bodyheat warmed up the led but in any case it was still far far from hot.
Covering a bright light source with your fingertip generates heat? You don't say!
Come on guys, where do you think all the light energy goes to if it can't escape your finger? Conservation of energy, anyone? First law of thermodynamics?
Not getting hot when o use it either
Sent from my GT-I9100 using Tapatalk
mchimney said:
I didn't even know LEDs could cause that much heat
Click to expand...
Click to collapse
Some of the higher power LEDs require heat sinks.
Madrenergic said:
Covering a bright light source with your fingertip generates heat? You don't say!
Come on guys, where do you think all the light energy goes to if it can't escape your finger? Conservation of energy, anyone? First law of thermodynamics?
Click to expand...
Click to collapse
Light energy need not always be converted to heat energy.
the blood circulation actually helps to take heat away from the hot spot.
This is first phone that can actually harm you if you do not move your finger. Human finger is not a solid passive body, so just imagine how much infra red energy this source is putting out.
The aim of this thread was to make people aware of it. Imagine what can happen if you left torch on and kept it on table facing down.
My last 2 phones DHD and Nexus S comes nowhere near this.
But gotta say that heart rate app works best on sgs2 due to this. You can actually see the light pulsating with your heart beat.
Sent magically from Samsung Galaxy S 2.
Out of curiosity downloaded the app (Instant Heart Rate - Free) and tried it.
I thought the app was some novelty crap but it really does seem to work .
Held my finger to the LED/Camera for almost 3 minutes, got slightly warm but nowhere near uncomfortable.
Hi all,
While I was using the phone, the screen suddenly turned neon color (all the colors were off the chart!)
Needless to say, I was shocked beyond words
Then I checked the battery graph and noticed a large spike in the battery usage
Anyone experienced this before? (Pls see the attachment)
Faulty battery perhaps?
I have not. But, I'd like to know if you've been drinking or used any other controlled substance prior to SGSII usage?...
cmd512 said:
I have not. But, I'd like to know if you've been drinking or used any other controlled substance prior to SGSII usage?...
Click to expand...
Click to collapse
he clearly spilled a diluted Viagra cocktail on the phone, but the effect was short lived, the phone climaxed in about 1 minute, and returned to its normal flaccid curve.
OP - this is very unusual, you should get this to support. Either battery is bad or something shorted in the phone??
What is the confusion? His phone has been unplugged 7 hours, and his graph shows the display on almost the entire time. Seems normal to me, most people get around 5 hours screen on time.
That said, I have no clue about neon screen from heavy usage.
Wouldn't it be the opposite ? I mean, because the screen turned neon (so white/blue colors I think ?), it drained much more battery since OLED cells eats more battery when white.
#4 and #5 - guys did you open the OP's attachment? The battery graph spiked to 100% momentarily, and that is when the display turned neon.
The question is not about 7 hours of battery life, it is about that spike and color change. I bet something shorted somewhere
kreoXDA said:
#4 and #5 - guys did you open the OP's attachment? The battery graph spiked to 100% momentarily, and that is when the display turned neon.
The question is not about 7 hours of battery life, it is about that spike and color change. I bet something shorted somewhere
Click to expand...
Click to collapse
probably that's the reason
Shucks... piss poor battery life and now this?
XpLoDWilD said:
Wouldn't it be the opposite ? I mean, because the screen turned neon (so white/blue colors I think ?), it drained much more battery since OLED cells eats more battery when white.
Click to expand...
Click to collapse
Pink and white, but it was a sudden burst
I must be the lucky one in a million to experience this kaleidoscope of colors
And yes, bloody strange that it spiked to 100% instead of -100%!!
My phone must have given it a superturbo 1millisecond charge!
Or the battery might have zapped my screen when it malfunctioned
Damn!
Oh hell
oh i see it now. i opened the pic first time but glanced too fast. it looks like some type of voltage spike for a split second. interesting.
I had this once, the screen went bright red/pink but its never happened again but I don't recall seeing battery spike.
__NBH__ said:
I had this once, the screen went bright red/pink but its never happened again but I don't recall seeing battery spike.
Click to expand...
Click to collapse
YAAAA!!!! Bright red/pink!!!
I was totally freaked out
Did you check the graph? It's really hard to miss the spike!
My screen also went pink/red at one point out of the blue. I can only say it looks sort of like Night Mode in Chainfire3D but at the time I did not even have it installed. It freaked me out and went away. It wasn't green though
blue265 said:
My screen also went pink/red at one point out of the blue. I can only say it looks sort of like Night Mode in Chainfire3D but at the time I did not even have it installed. It freaked me out and went away. It wasn't green though
Click to expand...
Click to collapse
Ok, seems like I'm not the only one
Ya it was pink/red bright. No greenish colors
I also had this spike, whilst I was using the phone charging via USB.
I don't recall any colour changes though.
Just this second while I was charging my phone I unlocked it using the home button and the screen appeared MUCH brighter than usual (even set to 100% brightness) and all the colours seemed to be pumping out a lot more aggressivly. Maybe this is what the OP saw.
I locked the phone, unlocked it again and it was fine. But if I tried to turn the lock screen on by pressing the home button nothing would happen - only the unlock button. I unplugged the phone and plugged it back in and now it's back to normal.
I will try to take a photo next time but I may not in fear of burning the pixels out.
Paganister said:
Just this second while I was charging my phone I unlocked it using the home button and the screen appeared MUCH brighter than usual (even set to 100% brightness) and all the colours seemed to be pumping out a lot more aggressivly. Maybe this is what the OP saw.
I locked the phone, unlocked it again and it was fine. But if I tried to turn the lock screen on by pressing the home button nothing would happen - only the unlock button. I unplugged the phone and plugged it back in and now it's back to normal.
I will try to take a photo next time but I may not in fear of burning the pixels out.
Click to expand...
Click to collapse
I'm pretty much sure what I saw was different
The colors on the screen were totally out of whack, only pink/red bright colors
It is probably the sudden power draw by the screen which caused the battery to overdraw and hence spike in voltage. The battery capacity chart is based on voltage and so it shows the spike.
If you draw too much power from the battery, the voltage should lower. Not spike to 100% ! Imho something is seriously wrong with the phone.
I had the funky coloured screen but mine went aqua and was upside down lol
Hi, I'm French so sorry for my English.
I use every day software called "iCoyote" to signal and be notified of fixed and mobile radars.
I've never let "iCoyote" running over 30 minutes.
Yet, I have a huge "Burn-In".
(on a I9100)
Photos (the last photo shows you how is "iCoyote" to compare with the screen burning).
My S GS II is now to the after-sales service since yesterday.
RaPiiDe said:
Hi, I'm French so sorry for my English.
I use every day software called "iCoyote" to signal and be notified of fixed and mobile radars.
I never let "iCoyote" running over 30 minutes.
Yet, I have a huge "Burn-In".
(on a I9100)
Photos (the last photo shows you how is "iCoyote" to compare with the screen burning).
My S GS II is now to the after-sales service since yesterday.
Click to expand...
Click to collapse
that does look really bad but the thing is if you are using that in the car and its infront of the sun as well it will get extremely hot...hopefully now that you have took it back they will sort it for you...but using the phone intensively it will get hot...just like computers or laptops even playstation..use them long enough they do start getting hot my friend..all the best hope it wont happen again
Dont these mobile screens have any threshold temperature values to turn off when reaching such temperatures???
Matriak31 said:
that does look really bad but the thing is if you are using that in the car and its infront of the sun as well it will get extremely hot...hopefully now that you have took it back they will sort it for you...but using the phone intensively it will get hot...just like computers or laptops even playstation..use them long enough they do start getting hot my friend..all the best hope it wont happen again
Click to expand...
Click to collapse
Thank you for the answer .
I know the sun can be responsable but the problem is not present with a GPS device or many phones.
Samsung sells a car holder but if you use it, you kill your phone...
I've never used it more than 30 minutes in a row... And my screen is burnt...
I made this new topic to warn people. Be careful using this screen.
RaPiiDe said:
Thank you for the answer .
I know the sun can be responsable but the problem is not present with a GPS device or many phones.
Samsung sells a car holder but if you use it, you kill your phone...
I've never used it more than 30 minutes in a row... And my screen is burnt...
I made this new topic to warn people. Be careful using this screen.
Click to expand...
Click to collapse
Nothing to do with heat, research amoled displays. The more you use a particular color the less bright over time the color pigment will be. Blue lasts the shortest, then green then red.
On my old galaxy s, the clock made a set of "burnt in" pixels in its place. On an all blue screen, the clock had obvious burn in, green screen less noticeable, red not noticeable. One idea could be to lower the brightness to reduce the effect, but it WILL happen to some degree. For me it isn't noticeable unless I look for it...
The ring you see is actually not "burn in" in the sense of old CRTs or plasma, in fact its the opposite. With burn in, if blue "burns in" you always see blue. Amoled is the OPPOSITE. The reason the ring above appears to be redish-green is because the blue is "depleted" more so than red or green. As I said before the colors deplete at different rates, thus blue will burn out sooner than green, green sooner than red. So for the ring you see above, on a screen meant to be 100% white, your "ring" will be maybe 80% blue, 95% green, 100% red based on how much brightness each sub-pixel has lost.
Sent from my GT-I9100 using XDA App
please delete
compuw22c said:
Nothing to do with heat, research amoled displays. The more you use a particular color the less bright over time the color pigment will be. Blue lasts the shortest, then green then red.
On my old galaxy s, the clock made a set of "burnt in" pixels in its place. On an all blue screen, the clock had obvious burn in, green screen less noticeable, red not noticeable. One idea could be to lower the brightness to reduce the effect, but it WILL happen to some degree. For me it isn't noticeable unless I look for it...
The ring you see is actually not "burn in" in the sense of old CRTs or plasma, in fact its the opposite. With burn in, if blue "burns in" you always see blue. Amoled is the OPPOSITE. The reason the ring above appears to be redish-green is because the blue is "depleted" more so than red or green. As I said before the colors deplete at different rates, thus blue will burn out sooner than green, green sooner than red. So for the ring you see above, on a screen meant to be 100% white, your "ring" will be maybe 80% blue, 95% green, 100% red based on how much brightness each sub-pixel has lost.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Maybe its because of sunlight...
Sent from my GT-I9100 using Tapatalk
ryn888 said:
Maybe its because of sunlight...
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Answer :
I know the sun can be responsable but the problem is not present with a GPS device or many phones.
Samsung sells a car holder but if you use it, you kill your phone...
I've never used it more than 30 minutes in a row... And my screen is burnt...
compuw22c said:
Nothing to do with heat, research amoled displays. The more you use a particular color the less bright over time the color pigment will be. Blue lasts the shortest, then green then red.
On my old galaxy s, the clock made a set of "burnt in" pixels in its place. On an all blue screen, the clock had obvious burn in, green screen less noticeable, red not noticeable. One idea could be to lower the brightness to reduce the effect, but it WILL happen to some degree. For me it isn't noticeable unless I look for it...
The ring you see is actually not "burn in" in the sense of old CRTs or plasma, in fact its the opposite. With burn in, if blue "burns in" you always see blue. Amoled is the OPPOSITE. The reason the ring above appears to be redish-green is because the blue is "depleted" more so than red or green. As I said before the colors deplete at different rates, thus blue will burn out sooner than green, green sooner than red. So for the ring you see above, on a screen meant to be 100% white, your "ring" will be maybe 80% blue, 95% green, 100% red based on how much brightness each sub-pixel has lost.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Thank you for this answer. Now, I understand that the screen is "used" and not burnt.
Always using auto brightness.
I can see a difference in the notification bar area when I put the phone in landscape, eg in the browser.
I've got the phone about 3 months and a half ago.. I've pretty used the phone. Using auto brightness.
I noticed over the last few days some burning in. I went to start a thread to see if anyone else had this and there is a thread also underway in the Q&A section http://forum.xda-developers.com/showthread.php?t=1284984
That means any app that stays open (i.e. Car Home) can damage your screen. I had no idea, thanks. At least Car Home has the screen 90% black...
Thank's for the heads up and I will try not to use blue no more. (I did not think it would make a screen "burn out" so fast.) My 5 year old 32in Lcd hdtv I had dimed out to the point were it started becoming hard to see movies with dark themes. (I now have a 46in LED tv)
yep. I have Samsung Omnia II - first Samsung phone with AMOLED display. And noticed that time that blue pixels wear very fast.
It's pretty similar to plasma displays.
sorg said:
yep. I have Samsung Omnia II - first Samsung phone with AMOLED display. And noticed that time that blue pixels wear very fast.
It's pretty similar to plasma displays.
Click to expand...
Click to collapse
Yeah, a little research on AMOLED screens will reveal their struggles with finding blues that last anywhere near as long as green, much less red. Since it's an organic compound in the end, it's going to have a somewhat limited lifespan. How long it'll really last is going to vary by use, brightness, and luck of the draw.
Awww nuts!
That's a bit off-putting really but I'm glad I found out about the screen issue. I'm having a real to-and-fro battle trying to decide which phone to buy, Sensation or GSII. Each have their pros and cons.
when i had my mobile for like 3 days i was playing fruit ninja at highest brightness and all the slashing on the screen after 3-4 min i had a warning that screen temperature is high and it reduced brightness automatiacally but nothing happened to screen
Thanks for sharing this info, RaPiiDe. And thanks to ompuw22c for explaining this amoled specific issue.
Did anyone managed to get screen replaced, does warranty cover it?
My GS is almost 2 years old, but the screen is perfect. I guess that's because I set the screen the lowest bright unless I use it outside. Even though it's lowest bright, the screen is bright enough to do almost everything. I love superamoled.
Sent from my SCH-I500 using XDA App
yqed said:
That means any app that stays open (i.e. Car Home) can damage your screen. I had no idea, thanks. At least Car Home has the screen 90% black...
Click to expand...
Click to collapse
A respectable night docking app must do two very important things right:
a) must lower brightness to minimum
b) must move the image left/right/top/bottom by a few pixels every so often , to minimize strain on pixels.
Slysdexia said:
Yeah, a little research on AMOLED screens will reveal their struggles with finding blues that last anywhere near as long as green, much less red. Since it's an organic compound in the end, it's going to have a somewhat limited lifespan. ...
Click to expand...
Click to collapse
Just so no one gets confused here: "Organic" in OLED does not mean "material came from once-living organism, or is a product of decay". It instead means "made from an organic compound" - where "organic compound" is a material that contains carbon. Another example of an organic compound is diamond. Carbon is basically everywhere
I have terrible usage from PowerAMP in car mode. Just got my USB jig though. Will most likely send it in for replacement.
Sent from my GT-I9100 using xda premium
I am expecting to get my n10 in next week but have read a lot about the light bleed problems so my question is the amount of light bleed it has out of the box will it stay like that forever or can I risk it get worse when I use it and it gets shaken and stuff from transportation?
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It's unlikely that it'll get worse over time. Light bleed only occurs when backlit displays aren't sealed all the way around so a little bit of light "bleeds" though. The seal isn't something that's going to be shaken loose or anything during transportation, and the housing is tight enough that it's highly unlikely that it just comes off.
90% of devices report back with varying degrees of light bleed so far. Mine barely has any, to the point of being unnoticeable. You may get lucky.
falconoble said:
90% of devices report back with varying degrees of light bleed so far. Mine barely has any, to the point of being unnoticeable. You may get lucky.
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This is an exceptionally bold assertion, though likely not to be exactly accurate. There is nobody short of someone working at Google or Samsung who knows these numbers or could make anything but a guess.
My guess is < 5%, since anything higher would've halted production and sales.
ZanshinG1 said:
This is an exceptionally bold assertion, though likely not to be exactly accurate. There is nobody short of someone working at Google or Samsung who knows these numbers or could make anything but a guess.
My guess is < 5%, since anything higher would've halted production and sales.
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It's a broad, pull-it-out-of-my butt percentage. However, just a quick look around the forums has everyone complaining about some degree of light bleed in their Nexus 10s, some even with multiple returns and no sign of any fixes.
I doubt a rate higher than 5% would have done anything to halt sales if it's not crippling to the device's ability to function. Plenty of Nexus 7s were shipped with the screens lifting out of the housing, which was a fairly widespread problem. The Nexus 10 light bleed isn't an isolated issue.
I can confirm mine has major light bleed on the bottom left and right on the nav bar...... Mine is pretty bad to the point I'm returning it......... Sure hope my next one is better!!!!!! The N10 is a bad ass tablet other than the light bleed its very solid in every other way!!!! Good luck I hope you get a good one, make sure to turn the brightness up all the way and look at it with a black screen.....
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