Develop Bugs

SLCD better on battery?

I have become satisfied with the battery life on my AMOLED inc, but the power button is screwed up so I am getting a new/refurbished one. I am not sure if it will be AMOLED or SLCD, but I am excited either way.
Does the SLCD get the same or better battery life? Is the only other difference between the two that some recoveries don't work with it...

I may be wrong but I've never heard any blaring differences between the two, yet this is with my experiences.

If there is any battery saving difference I haven't noticed any. I got one of the first SLCD units and the battery life is just as bad as before.

For some reason I have it in my head that amoled has better battery with dark colors and lcd with whites. I think I read it in regards to lcd and led tvs.
Sent from my Incredible using XDA App

As far as I know, AMOLED's are better when displaying black colors. Because the pixels don't light up thus saving power. But on the downside when displaying white (Such as a web page) it can use up to 3x more power. The SLCD on the other hand is more neutral. It uses the same power with all colors. Because the blacks light up, but the white doesn't use any more power than the others.
Correct me if I'm wrong. That's just what I've read somewhere along the line.

I think lcd's work by always displaying white then use power to block certain colors out.thus blocking every color, ie black, uses the most. At least that'd what I always thought.
Sent from my Incredible using XDA App

AMOLED on average has better battery life through most tests I've found, but the principles of what you're viewing has a large affect on it. I prefer dark backgrounds as it is, but if you're using a lighter background and have your screen unlocked often it's going to drain a bit more than it would if you had say, a black or dark gray background. The differences are really going to be minimal in everyday usage.

Which is Better?? HD7 or HD2 with WP7 ??

i got 2 questions about the HD7 and HD2 with WP7:
1) is it possible to tweak an HD7 to increase battery life? if so, how much would be gained in total batt hours?
2) which phone ihas battery life? the HD7 (after tweaking it) or HD2 with WP7?

They're both the same phones. Only differences are largely cosmetic. Different button layouts because they were designed for different OSes, for example.
The screens and cameras are largely the same. They both have the same sensors in them.
Both of them have rather bad battery life because they have 1230 mAh batteries (standard for late 2010 smartphones was somethere around 1500 mAh, though a few phones had 1400)..
Both of them have pretty bad speakers, but the HD2 has front-mounted speakers which makes it a better media player, IMO. The HD7 speakers are forgetable. Earbud quality is decent, though.
HD2 has way better build quality than the HD7. The casing is first rate quality. The Battery cover is very nice. It has real buttons. The HD7 has 3 capacitive buttons. Teh physical buttons (power/camera/volume rocker) are all rather flimsy feeling and the volume rocker sort of moves a bit (probably by design, but it doesn't feel good). It often feels like you have to press the Power and Camera buttons more than once to get a response.
The screen is responsive on both phones, but it's a low quality TFT LCD display that is literally unusable in direct sunlight.
If you want WP7 there's no reason to get the HD2. You're just going to be frustrated waiting for hacked patches to get released. Just get the HD7.
But if you had choice in carrier I'd get a Focus over the HD7. If you're stuck on T-Mobile, look into the DVP. It's a factorably better phone than the HD7 - camera notwithstanding...
The latest update they sent to the HD7 seems to have degraded battery life factorably. The other day I took my HD7 out with em adn never used it... After about 3 hours my battery was half dead (conditioning a battery by letting it drain is useless and a myth for Li-Ion batteries).

N8ter said:
The screens and cameras are largely the same. They both have the same sensors in them.
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Click to collapse
No, they are not the same LCD's. HD2 has a 16bit Color LCD while the HD7 has a 24bit Color LCD. Also, the HD7 works just fine in direct sunlight for me & the build quality is good IMHO... My only worry is the battery door, I fear the clips may break in time if you remove the door a lot.
See pic for example of difference;
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

N8ter said:
The latest update they sent to the HD7 seems to have degraded battery life factorably. The other day I took my HD7 out with em adn never used it... After about 3 hours my battery was half dead (conditioning a battery by letting it drain is useless and a myth for Li-Ion batteries).
Click to expand...
Click to collapse
but lets say on the hd7 you turn off wifi, 3g, bluetooth, gps, push notifications, and reduce brightness. realistically, how many hours can you expect from it?

drkfngthdragnlrd said:
No, they are not the same LCD's. HD2 has a 16bit Color LCD while the HD7 has a 24bit Color LCD.
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Click to collapse
That's a software issue, not a hardware one.
A given program in a given build of WP7 will display at the same bit depth on either device.

koolxx said:
but lets say on the hd7 you turn off wifi, 3g, bluetooth, gps, push notifications, and reduce brightness. realistically, how many hours can you expect from it?
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Click to collapse
i use auto brightness, location on, 3G and WiFi (most of the day), 2 push email accounts set to notify when received, HTC hub and weatherbug using push every hour, occasional texting and emails, some calls, editing documents in Office sometimes, checking Facebook every now and then, and music when in the car and get from 10 to 10 most days, sometimes getting critical battery life notification and sometimes not.

tai4de2 said:
That's a software issue, not a hardware one.
A given program in a given build of WP7 will display at the same bit depth on either device.
Click to expand...
Click to collapse
Nope, it's hardware...
HD2 (TFT-LCD capacitive touchscreen, 65K colors)
HD7 (TFT-LCD capacitive touchscreen, 16M colors)
HD7S (TFT-Super-LCD capacitive touchscreen, 16M colors)

I like the HD7 the best

drkfngthdragnlrd said:
No, they are not the same LCD's. HD2 has a 16bit Color LCD while the HD7 has a 24bit Color LCD. Also, the HD7 works just fine in direct sunlight for me & the build quality is good IMHO... My only worry is the battery door, I fear the clips may break in time if you remove the door a lot.
See pic for example of difference;
Click to expand...
Click to collapse
I meant the type of LCD used on them is the same. The TFT LCD screen HTC uses on the HD2/HD7 is terrible compared to the AMOLED or Super AMOLED used in the DVP or Focus.
Windows Mobile 6.5 doesn't/didn't have support for 24-Bit color, anyways, so putting a 24/32-bit panel in it is a waste of money and would have added absolutely no value to the device. The OS only supports 65k colors, the same way it only supported VGA video recording and that's why the camera in the HD2 is crippled (by the OS).
Furthermore, (alluding to your later post), you do realize that TFT and LCD are the same, right? It's actually TFT LCD, all together: http://en.wikipedia.org/wiki/TFT_LCD
In any case, it doesn't matter. I'm referring to the type of display used (which, given what type it is, matters way more than how many colors it supports given there are equivalently priced devices with better build quality and much better screen tech on them - we all know they are equivalently speced otherwise barring storage size). The type of display used on each is TFT LCD and apart from color depth support, they are basically identical.

koolxx said:
but lets say on the hd7 you turn off wifi, 3g, bluetooth, gps, push notifications, and reduce brightness. realistically, how many hours can you expect from it?
Click to expand...
Click to collapse
In that case why do you want a phone? I'm not going to entertain this question with a response because this is a useless use case to even consider.

@OP If you're on AT&T, I suggest waiting for the HD7S. Otherwise the HD7 IMHO is better than the HD2. I personally plan to buy a HD7S screen to put in my T-Mobile HD7 once they become available on Ebay.
N8ter said:
I meant the type of LCD used on them is the same. The TFT LCD screen HTC uses on the HD2/HD7 is terrible compared to the AMOLED or Super AMOLED used in the DVP or Focus.
Windows Mobile 6.5 doesn't/didn't have support for 24-Bit color, anyways, so putting a 24/32-bit panel in it is a waste of money and would have added absolutely no value to the device. The OS only supports 65k colors, the same way it only supported VGA video recording and that's why the camera in the HD2 is crippled (by the OS).
Click to expand...
Click to collapse
Once again, see;
http://forum.xda-developers.com/showpost.php?p=13935806&postcount=7
The HD2's TFT LCD only supports 65K colors aka 16 bit while the HD7/HD7S supports 16M colors. Nothing to do with the software. WM 6.5 does have a registry somewhere to make it support 24bit color. I've done it before granted it made no difference as the screen can't display 24 bit.
EDIT: Article on msdn about WinCE aka WM 6.5 supporting 24 & 32 bit color;
http://blogs.msdn.com/b/windowsmobile/archive/2005/09/07/462187.aspx
Windows CE supports both forms of 24 bit color (24 and 32 bits). If an OEM really wants to "make use" of that 18 bit screen, they can. The question you need to be asking yourselves, however, is whether or not it's worth the cost. Is a marginally better image worth slower graphics?
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PS: TFT (Thin-Film transistor) is not LCD, it is a type of LCD, AMOLED uses TFT too...
An active matrix OLED display consists of a matrix of OLED pixels that generate light upon electrical activation that have been deposited or integrated onto a thin film transistor (TFT) array, which functions as a series of switches to control the current flowing to each individual pixel.[5]
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Click to collapse

I wasn't trying to define TFT for you. I was telling you that you're wrong for trying to interpret GSM Arena specs literally. Both devices have TFT LCD displays. That is all. I don't care what the definition is. I just care what it actually is. Saying one is TFT and one is LCD is misleading to people who actually don't know that they are technically identical outside of color depth - which they are. That's all that matters to me. Your insistence on talking about color depth doesn't matter. The fact is: Independent of color depth, the screens are the same and they're terrible screens compared to the Super LCD, AMOLED, Super AMOLED, Super AMOLED Plus, and IPS displays being used liberally these days.
Crappy screen is crappy screen. It if was a 32-bit 1080p screen I would still make the same conclusion
I removed everything else because you're too tunnel vision to actually see what I was talking about and are going on about a fairly non-factor detail.
Ciao.
Cute Addendum: http://androidforums.com/droid-x-support-troubleshooting/122808-droid-x-screen-very-washed-out.html
Screen Type in the Droid X: Very similar to the HD2/HD7. A bit better, but not by much at all. All these TFT LCD screens share the same issues

N8ter said:
In that case why do you want a phone? I'm not going to entertain this question with a response because this is a useless use case to even consider.
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Click to collapse
Not going to entertain the question with a response eh?
That's funny because I appear to be reading a useless response posted entirely with the intention of provoking a reaction.
This is the kind of crap that needs to stop in this forum. The op has asked about the differences between 2 devices and the thread is turning into a "who's got a bigger e-peen" contest, thinly veiled as a discussion about LCD screens.
Back on topic please.
Sent From My Fingers To Your Face......

The response makes perfect sense. Its useless to measure smartphone battery life with everything turned off, and such a measurement is useless.
Sorry you missed it...
conantroutman said:
Not going to entertain the question with a response eh?
That's funny because I appear to be reading a useless response posted entirely with the intention of provoking a reaction.
This is the kind of crap that needs to stop in this forum. The op has asked about the differences between 2 devices and the thread is turning into a "who's got a bigger e-peen" contest, thinly veiled as a discussion about LCD screens.
Back on topic please.
Sent From My Fingers To Your Face......
Click to expand...
Click to collapse
Sent from my SGH-T959 using XDA App

N8ter said:
Its useless to measure smartphone battery life with everything turned off, and such a measurement is useless.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Would have been a reasonable response............
Your insistence on trying to belittle the OP is what I was objecting to......
Or did I miss something??
I will not be dragged into a back and forth on this, if you want to respond to a question then respond with a simple answer, not one thats wrapped in a sarcastic opinion.
Im not calling you out personally on this, you are by no means the only person around here that does. You were however the first one I found today.
If you wish to reply then please do so via PM as this thread has been derailed enough. However, do not hold your breath for a response because as I said, this is not up for debate and I will not be drawn into an argument.

Oh yeah, I personally like the hardware buttons on the HD7. On my previous devices, when taking it out of my pocket. I'd accidentally hit a button, but that's not the case on the HD7. The only thing that took some getting used to is the 2 step camera button. The capacitive buttons are a little too sensitive though. I accidentally hit than a lot. Sometime I swear I never even touched the button lol.
As for 3G/WiFi/BT & Battery, I use both 3G & WiFi a lot & get pretty good battery life even on the latest update. Well considering it's a smartphone. I've gotten 8 hrs with very little drain, granted I use it less than most people.
Only thing I miss, is a hardware keyboard. The SIP maybe nice, but nothing beats a good hardware keyboard.
The speaker volume is kind of disappointing. It's loud with some things while almost can't hear other things.
The camera is a disappointment, but I have a digital camera for that. 720p doesn't look 720p at all.

N8ter said:
The screens and cameras are largely the same. They both have the same sensors in them.
Click to expand...
Click to collapse
N8ter said:
I meant the type of LCD used on them is the same. The TFT LCD screen HTC uses on the HD2/HD7 is terrible compared to the AMOLED or Super AMOLED used in the DVP or Focus.
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Click to collapse
So a 100HP V4 NA Honda engine and a 200HP V4 NA Honda engine are largely the same because they are both inferior to a 400HP Porsche B6 TT engine? Despite giving noticeably different results?
N8ter said:
In that case why do you want a phone? I'm not going to entertain this question with a response because this is a useless use case to even consider.
Click to expand...
Click to collapse
How about to fulfill the primary role of a phone - to make and receive calls. I know I have been in situations when I really need to conserve battery because I am stuck in a remote location and I need to get calls.
koolxx,
If you want a moddable phone that you will switch OSes on then get the HD2. If you want to only run Windows Phone then get the HD7. You will have to lie/cheat/steal to activate the XBL Services on an HD2 and have problems with updates. A new HD7 on the unlocked market is very reasonable too, similar in price to the HD2 anyway.

Which phone are you going to get Koolxx?

eternalemb said:
i use auto brightness, location on, 3G and WiFi (most of the day), 2 push email accounts set to notify when received, HTC hub and weatherbug using push every hour, occasional texting and emails, some calls, editing documents in Office sometimes, checking Facebook every now and then, and music when in the car and get from 10 to 10 most days, sometimes getting critical battery life notification and sometimes not.
Click to expand...
Click to collapse
hi etemalamb. so i'm sure that with all those features turned off batt can be extended to 24 hours.
and theres a phenomenon that occurs with batteries over a long preiod of time. i think its called "hashing" or "rehashing". this is when the battery gets used to the heat after being used a lot and its actually extended with much less drain. weird but true.

nicksti said:
Which phone are you going to get Koolxx?
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Click to collapse
hi nick.. good question. i was thinking about getting iphone 4. but its screen is a bit too small. i got an hd2 with wp7 on it. but the battery is alright... not great. i read that hd7 has better battery life than hd2. so i'm thinking about getting an hd7. and i think wp7 is the best phone o/s out there now, better than ios.

[Q] Screen Burn-In Questions

I have an Epic 4g Touch (SGSII), and am wondering about screen burn-in.
I already know it's possible to burn-in our Super AMOLED+ screens, but I'm wondering what kind of things I can do to prevent it, and if doing certain things will accelerate the burn-in or not.
1. I'm mostly indoors, so I always keep the brightness set to 30%. This should be sufficiently low to slow the burn-in, correct?
2. I use ADW Launcher Pro, but I don't have it auto-hiding the notification bar. My screen is on between 1-3 hours per day. Should I be using the auto-hide feature?
3. I was thinking about using the clock in dock mode at night while I charge my phone. I set the brightness to the lowest possible setting, and I know that after a few minutes, the phone sets a black background with the clock text being yellow and moving around the screen every minute or so. With all of that in mind, is that going to be bad for the burn-in?
4. This is kind of related to #3. If a pixel is pure black, is it susceptible to burn-in?
Thanks in advance to all replies. I'm pretty tech savvy, but kind of a noob when it comes to these advanced screen questions.

Awesome, thanks. Wasn't aware of that strobe trick; I'll have to start doing that

newalker91 said:
My suggestion to reduce any and all burn-in is the same trick used to fix stuck pixels on LCD screens. Download a strobe light application that uses multiple colors, and once every couple of weeks allow your phone to sit while your screen rapidly flickers through all of the colors for about 10-15 minutes. This will wash away any burn-in that may be building.
Click to expand...
Click to collapse
I just had a thought...
Isn't burn-in caused by pixels becoming physically damaged? So how can a strobe light app that uses these damaged pixels "wash away" burn-in?
Not trying to be rude or anything; I definitely appreciate everyone's knowledge on this subject. I guess I'm just looking for more information.

personally i wouldn't worry too much about burn in. things move around enough on these phones to mostly prevent it.
and for what it's worth i still use my original samsung launch day moment as a clock for the last year or so and have yet to notice any burn in at all (and that clock doesn't bounce around) sometimes during the day i still use it as a media player or terminal device too. screen still looks awesome (not compared to the gsii but)
granted the moment was super amoled not super amoled+ but heh....

newalker91 said:
No, the Samsung Moment was sure not Super AMOLED. It was LCD. I've taken probably a thousand of them apart.
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Click to collapse
you sure? the og box i have on my shelf def says amoled.
EDIT. ok maybe its not SUPER AMOLED. But it def is AMOLED.
"3.2-inch AMOLED display"

newalker91 said:
Regular AMOLED displays are basically the same as LCD screens. They function completely different than Super AMOLED.
Click to expand...
Click to collapse
the only difference between amoled and super amoled is the PenTile RGBG pixel matrix is replaced with a common RGB subpixels arrangement, going from eight to twelve subpixels in a group, resulting in finer details. The screen technology is also brighter, thinner and 18% more energy efficient. super amoled+ adds more of the same just brighter lighter and less power hungry.
yes any led panel (amoled and super amoled) is just an led panel thats true.
its the material used for the led catalyst (organic) and position of the film in the glass (under not over) that differentiate them.
but then again it's really not an issue. and i could be wrong.
all i know is that my moment has been left on in situations that i know would cause burn in on any normal lcd style device and has never been an issue.
for the length of time that most people keep a phone (2years or so) i personally wouldn't worry about it.
that being said OLED pixels degrade with use (become dimmer, and the different colour pixels degrade at different rates), but according to most screen datasheets ive seen we are talking 15-20,000 hours of screen on use for a noticeable difference.
just ask yourself this do you ever see screen burn in on display phones that are left running screen on all day?
but didn't mean to push the thread offtopic

I have seen burn in on my Captivate, so yes it will happen.

yep it will happen in certain circumstances i just went looking through my old amoled info and found this link
http://data.4dsystems.com.au/downloads/micro-OLED/Docs/4D_AMOLED_Presentation.pdf
this has a lot of good info but is out of date.
what we get isn't true burn in (although the outcome is similar)
what we see as burn in is really the degradation of pixel intensity and has alot to do with the colors the screen must display. so even a moving clock is degrading the pixels just that it's degrading them (hopefully evenly across the screen) the super amoled+ screens seem to have added a white led to the mix to help prevent burn in from white screens/txt and lower power consumption.
it also appears some colors are better for screen life than others with blue having the shortest life.
keep in mind if your interested in looking at the link that it is describing the first gen amoled screen and much has been improved since then.
from this i would also make the assumption that flashing the screen doesn't unstick any pixels it just burns them all out a bit.
i'll shut up now

Well I've done some more research too, and found that what mjcollum said is pretty much the case for us. We don't actually get a "burn-in", but rather the pixels degrade and leave a sort of "ghost" image where the degradation is worse than surrounding areas.
The "half life" of older AMOLED pixels was 14k hours, but most articles I've encountered mention that technology has improved, ergo the pixels should last a bit longer in our Super AMOLED+ displays.
But still, there will definitely be some degree of degradation. I suppose it's a lot like sex; leaving the screen off will keep your pixels the safest, but it's a lot more fun to use what you've got
I only wonder if a dim display degrades slower than a brighter display... ?

interesting. good to know.
does this apply to qhd displays like the photon also? or is this only a amoled thing?

newalker91 said:
Regular AMOLED displays are basically the same as LCD screens. They function completely different than Super AMOLED.
Click to expand...
Click to collapse
The moment was AMOLED... it had a seperate digitizer.
The Galaxy S was Super AMOLED it incorporated the digitizer with the pentile matrix.
The Galaxy S II is Super AMOLED+ which replaces the pentile layot with the standard RGB grid.
To prevent burn in limit screen on time, no need to do any crazy pixel unsticking tricks as it'll just reduce the vibrancy of your screen.

thanks warlord good to know.
one thing to think about is even if the pixel halflife is only still 14k hours
365(days) x 24(hours) = 8,7650 hours if you left it on for a full year.
so i say just use the thing.
---------- Post added at 10:19 PM ---------- Previous post was at 10:13 PM ----------
SpaceMonky said:
interesting. good to know.
does this apply to qhd displays like the photon also? or is this only a amoled thing?
Click to expand...
Click to collapse
i could be wrong but i believe the qhd part just references the resolution.
and the photon has a normal style lcd display. so if it got burn in at all it would be the normal lcd style.

mjcollum said:
i could be wrong but i believe the qhd part just references the resolution.
and the photon has a normal style lcd display. so if it got burn in at all it would be the normal lcd style.
Click to expand...
Click to collapse
You're correct, qHD only references the resolution, not the display type. Which is funny, because a lot of Google searches are for "qHD vs Super AMOLED+". I think people are just trying to pit their Droid Bionics against our SGSIIs

Disadvantages of AMOLED screen

Hi all.
Last night I accidentally discovered the burnt pixels on my one year old Focus screen The sights of high contrasts Metro-style icons (such as IE, phone and marketplace) are visible on the white background as a darker "shadows" (actual color is like a light-light yellow, close to white). These "shadows" are visible on the white background in the dark only.
It's not a big deal but I'm kinda disappointed
So, my conclusions are:
- high contrasts Metro-style tiles on the home screen are evil, at least for AMOLED screens. However live tiles (probably) can solve the issue (he-he, just thought - may be it's a real reason why MS implemented and pushing live tiles? Kidding );
- periodical changing of tile location on the home screen also can help;
- using AMOLED handsets for development is not so good. The best practice is to keep AMOLED screens off all the time (what is not acceptable for development).

My Focus is one year old, but I don't have any burn in problems some reported. Granted, I don't leave my phone screen on for extended periods, but my live tile arrangement really never changed.
Now that I have the HTC Titan, I have no regrets with the SLCD screen. The colors seem more natural to me. While AMOLED screens certainly have a "pop" factor, it's not a must-have for me.

This is a well known issue that you have to live with: AMOLED will get screen burn-in if it is use for an extend period of time.
I know most of the Android Galaxy phones also have screen burn-in especially on the status bar.
My own Samsung Focus developed screen burn-in (esp. Metro buttons) after only three months of use.

day2die said:
This is a well known issue that you have to live with: AMOLED will get screen burn-in if it is use for an extend period of time.
Click to expand...
Click to collapse
How about Super AMOLED screens, is problem still persists?

I notice things on my Omnia 7. Normally if i've had a menu open for a minute or more and i switch to a black background i can see a kind of greyish imprint of the last displayed icons.

sensboston said:
How about Super AMOLED screens, is problem still persists?
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Click to collapse
SAMOLED has it as well. I'm sure it was a big issue in the focus forums last year

The biggest disadvantage of an amoled screen is when you move to another type of screen, and notice just how gray blacks can be. Using my old focus and having the blacks blend with the bezel was so visually pleasing, and the colors had so much pop. I hear that the colors aren't as accurate, but what does that mean really? 90% of what I look at on a phone is arbitrary colors anyway; how would I ever know that the blue tiles are really supposed to be one shade vs. another, and why would I care?
(btw yes, I had the same screen burn-in problem on my focus)

Yeah i had a major burn in problem with my Omnia 7, I think it was something to do with the bright blue theme i used, i have pictures here: http://forum.xda-developers.com/showthread.php?t=973337

use a screen saver?
Oh ya.. nevermind

Wow... I had no idea of this...
I have a Galaxy S I9000 (as well as an LG Quantum) and luckily it hasn't burnt in...
Is this a really wide spread problem?

renatofontes said:
I have a Galaxy S I9000 (as well as an LG Quantum) and luckily it hasn't burnt in...
Click to expand...
Click to collapse
Try to look at your screen in darkness (set white background on the fullscreen first), then say "luckily"

sensboston said:
How about Super AMOLED screens, is problem still persists?
Click to expand...
Click to collapse
The problem is particularly bad on Super AMOLED screens.
Super AMOLED is still AMOLED.
My Vibrant, if I turn my screen on to the home screen and let it sit there for 10 seconds and then open another app, I can see the shadows on the home screen superimposed onto the app that's running. It's very noticeable, and gets irksome after a while. You won't see that on LCD screens.
The status bar is burnt in, which is noticeable when the phone is used in landscape mode because you can always see that faint strip where the status bar is (in portrait) on the side of the screen.
I set my screen timeout to 30 seconds to "preserve" the screen.
---------- Post added at 05:33 PM ---------- Previous post was at 05:30 PM ----------
renatofontes said:
Wow... I had no idea of this...
I have a Galaxy S I9000 (as well as an LG Quantum) and luckily it hasn't burnt in...
Is this a really wide spread problem?
Click to expand...
Click to collapse
All of Samsung's displays have this issue. Perhaps you just haven't noticed it, or are just fortunate
Not really widespread, and not really a "problem" per se. Just a component of the screen tech. It burns in and shadows easily.
However they have better power management than LCD screens and better brightness, viewing angles, and outdoor visibility - as well as better color saturation and reproduction. For example, I increase my Vibrant's stock battery life by like 4+ hours doing absolutely nothing but putting a true black background on the launcher...
It's a trade-off. It's worth it for someone like you who doesn't notice it, though. It's worth it even for some people who do. It really depends on how long you keep your phone, Lol. If you upgrade yearly it's not that big a deal. I can't see myself going 2 years with the Vibrant as my primary device and dealing with it, though. It's too startling to look at at times, especially after you spend a significant amount of time in one app with static UI elements and move to something else...

If you look at the AMOLED technology, it's understandable really. All the colours displayed on the screen are composed of green, red and blue sub-pixels.
In an AMOLED screen, there is no backlighting. The sub-pixels themselves generate the visible light, hence why the blacks are so black, because the black pixels are not powered on. (Think of an AMOLED screen as having thousands of tiny tiny LED's)
However the problem with AMOLED is the manufacturers could not produce a specific chemical compound for each colour that would wear evenly. For example, the blue sub pixel has a shorter lifespan than the green. When the AMOLED sub-pixels gets used, the intensity of light produced decreases, hence there is uneven wear. The pentile arrangement was to actually arrange the pixels in a way, which as the display wears, the colours look normal. When there are static pixels displayed, a certain portion of sub pixels gets used more than others, hence why you can notice it.
In an LCD, each sub-pixel is a polarizing filter, which filters out either red/blue/green and displays it or blocks it, so an LCD doesn't suffer from screen burn in as much as AMOLED and PLASMA displays.
From day one I have only ever used my phone on the lowest setting and I have alternated every few days from red/green tiles. I have never used blue due to the low lifespan of blues!!

I don't think it's a huge problem if you are smart. I made the mistake of leaving my screen on as often as possible when I first got my focus. Once I started noticing the burn in, I moved my tiles around, put my screen on 2 minute timeout, and didn't notice any more of the burn in. Just the original images.

As Big K mentions, blue pixels are the quickest to degrade, that is why you never use a blue theme with an AMOLED display. Also, displaying white actually activates some blue pixels and draws more power, so the black system theme should always be used over white.
Every AMOLED owner should know these 2 things and it is a shame that Samsung and the carriers don't do a better job of informing their customers of these simple facts.
I cringe every time I see an AMOLED phone with a white background and blue theme.

This is why I still stick to Super LCD.
I saw an S2 get a burn in within 2 months of use. Lawl.

ohgood said:
use a screen saver?
Oh ya.. nevermind
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The solution is ridiculously obvious: turn off your screen when you're done using the phone. Duh. That's obvious from a simple battery life perspective.
Of course, I see people *constantly* who just set their phones down with the screen on and walk away. Idiots.

jasongw said:
The solution is ridiculously obvious: turn off your screen when you're done using the phone. Duh. That's obvious from a simple battery life perspective.
Of course, I see people *constantly* who just set their phones down with the screen on and walk away. Idiots.
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The solution is not ridiculously obvious because other screen types do not suffer from thsi issue, therefor the user who moves from an LCD screen to an AMOLED has absolutely no clue that this screen type has these deficiencies. They simply assume their screen will always look the way it does as long as they take care of their phone.
That is not a bad assumption. It just doesn't jive with this display tech.
I love the deep blacks and color saturation on Samsung's AMOLED screens, but I don't think I can ever convince myself to get another one.
The issue isn't just keeping the screen on. I've always used a 30 second screen time-out on all my phones, so they aren't just sitting there a ton with an image on them. Even when you have something on the screen for like 10 seconds and move to another app you can see the image shadows on the screen. Yes, it gets pretty noticeable after a while to the point where it's constantly drawing your attention.
It's actually worse than the PenTile they use in the 1st gen SAMOLED screens, TBH.

N8ter said:
The solution is not ridiculously obvious because other screen types do not suffer from thsi issue, therefor the user who moves from an LCD screen to an AMOLED has absolutely no clue that this screen type has these deficiencies. They simply assume their screen will always look the way it does as long as they take care of their phone.
That is not a bad assumption. It just doesn't jive with this display tech.
I love the deep blacks and color saturation on Samsung's AMOLED screens, but I don't think I can ever convince myself to get another one.
The issue isn't just keeping the screen on. I've always used a 30 second screen time-out on all my phones, so they aren't just sitting there a ton with an image on them. Even when you have something on the screen for like 10 seconds and move to another app you can see the image shadows on the screen. Yes, it gets pretty noticeable after a while to the point where it's constantly drawing your attention.
It's actually worse than the PenTile they use in the 1st gen SAMOLED screens, TBH.
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1st gen? It's being used in the Galaxy Nexus, too

It's a really useful point to raise, and something to think about for people using their phones for development. Automatic screen time-outs can be an annoyance when you're testing features (against a real device), and wanting to stay connected (in visual studio) to the phone for debugging info and deployment. I know I have my current phone on most of the day to test tile and page updates etc. so there's bound to be large areas of the screen remaining static for long periods of time.
It's made me think twice about getting a Lumia (which I assume would be prone too) for this reason
I'm surprised manufactures don't include info on it bundled with the phones (e.g. on not having a white background) - that's pretty irresponsible.

AMOLED performance and quality compared to Samsung panels?

I have heard from few people that the screen although AMOLED, does not stay true black in dark areas, but have grey tint like LCDs do. How would you people using the device rate the screen and its contrast quality compared to industry standards like Samsung. Also, is the battery drain issue somehow connected to this pixels not turning off completely?

[email protected] said:
I have heard from few people that the screen although AMOLED, does not stay true black in dark areas, but has grey tint like LCDs do. How would you people using the device rate the screen and its contrast quality compared to industry standards like Samsung. Also, is the battery drain issue somehow connected to these pixels not turning off completely?
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LED is the same, no matter which brand makes it. there are Three Manufacturers of LED displays, like universal Display Corporation (UDC), SAMSUNG and LG.
But when some Phone brand advertises their display with the name of Super Amoled then it made by Samsung.
and if they say OLED then it made by LG.
and apple usually use display by UDC.
CONCLUSION Realme use Samsung sAMOLED, 94% display market share occupied by Samsung and numbers are keep growing.

[email protected] said:
I have heard from few people that the screen although AMOLED, does not stay true black in dark areas, but have grey tint like LCDs do. How would you people using the device rate the screen and its contrast quality compared to industry standards like Samsung. Also, is the battery drain issue somehow connected to this pixels not turning off completely?
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The amoled panel itself is same as samsung as its super amoled and manufactured by samsung.
But the problem is color os dark mode not panel.
Cos applies different shades of black in system wide dark mode, so it may appear grayish but its true black if you are watching movies, using apps with dark mode and on dark wallpapers.
And for me, there is no unusual battery drain.
Standby drain is 0.5-0.8%/hour which is really good.
It last 6 hours of gaming and on moderate usage i have got around 10 hours of sot.

But as we know enabling dark mode saves some amount of battery .But in case of color is dark mode as it is not total dark ,does is save too???

osamanazim said:
But as we know enabling dark mode saves some amount of battery .But in case of color is dark mode as it is not total dark ,does is save too???
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Tbh, none of dark mode saves significant battery, its not even proofed properly, its just commonly considered, even if it saves, it won't make much difference.
Personally tested, maybe it can add few more mins but can't make difference of a hour in sot.