Flash LED, Use carefully - Galaxy S II General

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.

Related

LED lifespan/usage

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
Click to expand...
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.

[Q] Red light by the ear piece?

What is this for? I can't even figure out why it comes on exactly. It's not coming on as a notification light, not when docked with zune, seems like it only comes on sometimes when I plug in. It's around one of the sensors, and it's just bugging me that I can't figure out what it's for.
When you plug in what?
My charger, but I can't be certain. I know I've seen it light up, a red circle around the round sensor, but it's rare and random. No big deal, just curious ya' know?
Sent from my HTC Liberty using XDA App
Around what sensor
I haven't see any lights in my focus. Can you take a picture?
I think you are talking about the proximity sensor
yeah I believe it's the proximity sensor. It's whatever one is closest to the speaker. I can try to take a picture, I just don't know exactly what triggers it so it'll be kinda hard. It's a ring around the sensor, lights up red. I was really hoping it was a notification light, but alas, MS did not give us one.
Ricparr said:
yeah I believe it's the proximity sensor. It's whatever one is closest to the speaker. I can try to take a picture, I just don't know exactly what triggers it so it'll be kinda hard. It's a ring around the sensor, lights up red. I was really hoping it was a notification light, but alas, MS did not give us one.
Click to expand...
Click to collapse
Ha ha...too funny. We have all been lobbying for years to have LED's taken off of phones as battery drains and sure enough once somebody does, the complaints come in "Where is my red LED?"
I suppose that the only option is to make the phones with the LED's and then have a setting to turn LED notifications off. Those never seem to really work though.
Paolo01 said:
Ha ha...too funny. We have all been lobbying for years to have LED's taken off of phones as battery drains and sure enough once somebody does, the complaints come in "Where is my red LED?"
I suppose that the only option is to make the phones with the LED's and then have a setting to turn LED notifications off. Those never seem to really work though.
Click to expand...
Click to collapse
now that you mention it....back in my nextel days, I sure hated that little blinking light. Especially at night in the car. hmmmmmmm...

Atrix camera LED flicker

When I use the flashlight app one of the lights on the face will flicker on and off after about thirty seconds and then turn off. I was wondering if anyone else was having issues using the flashlight app and whether its a defect, or just buggy software?
It happened to mine when I had it for a while.
Not sure why it flickers on/off when it could shut off one led, which they do get hot at extended uses.
normal
http://en.wikipedia.org/wiki/Red-eye_effect
Using the red-eye reduction capabilities built into many modern cameras. These precede the main flash with a series of short, low-power flashes, or a continuous piercing bright light triggering the iris to contract. (This should not be confused with the autofocus assist beam, which uses a series of flashes for focus instead.)
murphy2122 said:
When I use the flashlight app one of the lights on the face will flicker on and off after about thirty seconds and then turn off. I was wondering if anyone else was having issues using the flashlight app and whether its a defect, or just buggy software?
Click to expand...
Click to collapse
I got my Atrix replaced. The replacement Atrix's LED flash is yellowish now but at least it's not flickering.
squarejp said:
I got my Atrix replaced. The replacement Atrix's LED flash is yellowish now but at least it's not flickering.
Click to expand...
Click to collapse
The one with the flickering wasn't Yellow?
The outside bulb has done that on my phone as well. I used the app search light. I tried it again the next day for a shorter time span and both bulbs lit up normally. There might be a work around. Auto-off flash first? No clue... I'd like to know, if anyone figures this out.
My right LED flickers on and off after about 15 seconds then switches off. After about 30-45 seconds both start flickering on and off.
This happens when recording videos or when using Droid Light :/ Faulty?
I have the same problem on my Atrix, but I was like, "Eh, one is fine for me, I don't care too much". It seems moody, as sometimes both light up for extended peiods, sometimes only one lights up, and some times the left one flickers..
Sent from my Atrix 4G using the XDA App
I left the LEDs on using 'Tiny Flashlight + LED' app for 2-3 hours the day I got the phone as I tried to accelerate battery drain. They never flickered or turned off.
Sidenote: This phone's battery lasts forever!
This is a major defect in these devices!!!!!! I recommend everyone test their leds with a light or camera app. I retured 4 phones due to this issue. My brother and his wife also replaced multiple atrix's to resolve. You only have 30 day from ORIGINAL purchase date to resolve this issuse. After that you must go through warranty which will only issue refurbished phones. That is phone that were defective that they fixed. Dont get screwed. Great phone nonetheless.
Sent from my MB860 using XDA App
YellowGTO said:
The one with the flickering wasn't Yellow?
Click to expand...
Click to collapse
My LEDs don't flicker at all, but I have noticed (is everyone's like this?) that there is an inner circle where the light is white/blue and the outer circle is yellow.
Now that you mention it, yeah the center is white/blue with yellow around it.
I'm trying keeping the light on again, at 10 minutes now. The LEDs are getting hotter than I remember from the first time around... like now the temperature stings the finger a bit.
EDIT:
20 minutes no flickering and both LEDs are still on, turning it off now.

[Q] Auto-brightness

There has been a lot said about the screen being dim on this phone, and it's the one and only thing that's holding me back from committing to getting it. Summer's coming and I want to be able to play it outside without having to sit in a dark corner.
I've also read that the auto-brightness feature is mandatory, and that it doesn't work particularly well, so I was wondering if this was the main reason for the reportedly dim screen. My current phone - an AMOLED HTC Desire - is VERY dim with the auto brightness enabled, but thankfully I can turn it off.
For anyone with the phone who is able to test, do you think the screen is bright enough if you cover the light sensor altogether? I'm sure that once the phone is rooted, we'll be able to disable the light sensor altogether, and I'm hoping the screen brightness is purely a software limitation (i.e. fixable) and not a hardware problem (i.e. NOT fixable)
Thanks.
If someone that has theirs already were to check the brightness on boot before the sensors even initialize that might give you a good idea of what it is capable of.
Most android phones i've played with in the past boot at full brightness. Your mileage may varry
Mine arrive tomorrow... dont know until tuesday
I got a slider for the birhgtness, haven't noticed any dimming/brightening automatically, seems just fine to me.
I think that if this problem keeps appearing SE will do something about it, and else the community will
I had mine for a day and sent it back...the auto brightness very temperamental. I would play Gboid emulator (great with new controls btw) and the screen would literally get dim and lighten up constantly every few seconds - under same lighting condition, it became very annoying throughout the day as you end up anticipating it..seems the sensor tries too hard under certain lighting conditions and not having the option to disable auto lighting is just dumb.
The screen is also a terrible fingerprint magnet, and definitely not the best on a cloudy day (Could not test in direct sunlight, this is a rare occurring phenomena here in UK) ...Also dust tends to get into the very fine spacings around the screen.
After an hour of use the phone looked like my kids and dog had played with it for few weeks....Not for me.
But maybe thats just me being spoilt with Nexus S and Ipone4 smudge free, brighter screens.
I dont use the auto-brightness. Ive just manually set it a little lower.
Aightu said:
I dont use the auto-brightness. Ive just manually set it a little lower.
Click to expand...
Click to collapse
I see what people are complaining about and... really it's not that bad.
I can see where it might get annoying if you're looking for it, but the screen is not going off and on like some people make it out to be. At least mine is not.
I keep mine at 50% brightness and I don't notice a brightness change even slightly. It's bright enough to see indoors easily and not noticeably worse outdoors than any other non-amoled phone I've owned.
from my experience people are making a mountain out of a mole hill, and the auto-brightness can be disabled with custom roms in the future, just live with it in the mean time. That or ask SE for an update that allows you to disable it.
johnsongrantr said:
I see what people are complaining about and... really it's not that bad.
I can see where it might get annoying if you're looking for it, but the screen is not going off and on like some people make it out to be. At least mine is not.
I keep mine at 50% brightness and I don't notice a brightness change even slightly. It's bright enough to see indoors easily and not noticeably worse outdoors than any other non-amoled phone I've owned.
from my experience people are making a mountain out of a mole hill, and the auto-brightness can be disabled with custom roms in the future, just live with it in the mean time. That or ask SE for an update that allows you to disable it.
Click to expand...
Click to collapse
Yep, I keep mine at 60% and don't notice any screen change or anything.
Regarding the fingerprint magnet, you can easily install third party screen-protector to avoid that
Sent from my LT15i using XDA Premium App

Be careful : Screen Burning on GS II !!!

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

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