Develop Bugs

screen blackness

someone here already mentioned that the GN screen isn't as black as the gs2 or nexus s. as in, a backlight is still visible on an all black background. can others confirm this? even better, can someone who owns both phones, or all 3, take a comparison pic? thanks
Sent from my HTC Vision using xda premium

I have the Nexus and GSII side by side and there is no difference in the 'blackness' when the screens are switched off. AMOLED does not use a backlight; absolute black is represented by a switched off pixel.
One thing I have noticed is that in boot screen animation they use a grayish background rather than absolute black which is kind of stupid. Makes the screen look like a washed out LCD.

i should have been more clear. i was referring to the screen in a switched on position with lets say an all black wallpaper. i know how amoled screens use a switched off pixel for blacks but some people on these forums have claimed that they are noticing a slight backlight, especially visible in the dark
Sent from my HTC Vision using xda premium

Galaxy nexus screen is pure black; however, it does seem to have more reflection when around light, and that light makes the pure blacks look not pure black.
But if you are in a dark area, blacks are pure black.

brian85 said:
Galaxy nexus screen is pure black; howeve.
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Well, it isn't. It is as black as my Plasma TV (Panasonic GW20)...
Gesendet von meinem Galaxy Nexus mit Tapatalk

Mine is clearly glowing when having pure black background. Like night and day difference compared to my Nexus S which has pure black. I try to take comparison photo of the two as I'm about to send my GN for warranty.
Sent from my Galaxy Nexus using XDA App

myself noticed this although I'm not really concerned for now ( I own a nexus s )

So are the pixels 'off' or not..that is the question!
On the Battery test thread the all Black and all White screens were comparable in battery life, which i wouldn't expect.

DirkGently said:
So are the pixels 'off' or not..that is the question!
On the Battery test thread the all Black and all White screens were comparable in battery life, which i wouldn't expect.
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No, they are not off.
AMOLED screens have a minimum voltage applied when on. To turn a OLED pixel from fully off to fully on takes a lot more power. The contrast ratio of the sAMOLED screen is something like 100,000:1.

jpalo said:
Mine is clearly glowing when having pure black background. Like night and day difference compared to my Nexus S which has pure black. I try to take comparison photo of the two as I'm about to send my GN for warranty.
Sent from my Galaxy Nexus using XDA App
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thanks, I'd appreciate a picture to see the difference
Sent from my HTC Vision using xda premium

aadvanced1 said:
No, they are not off.
AMOLED screens have a minimum voltage applied when on. To turn a OLED pixel from fully off to fully on takes a lot more power. The contrast ratio of the sAMOLED screen is something like 100,000:1.
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I guess the minimum voltage in GN has been increased at least compared to Nexus S. Here's comparison of my Nexus S (left) and GN (right). Pic is taken with 5 sec exposure. To be honest, the difference in that photo looks slightly bigger compared to what it is real life, probably because of that exposure time.
Black is from Dead Pixel Test apps black (second) screen. https://market.android.com/details?id=net.ujacha.deadpixel

aww that's kinda disappointing. I was really hoping for a pure black screen =/ you might be right about the minimum voltage increase being the cause of this

Well mine is BLACK and those pictures on my gn may look grey but the black around the phones show jet black (as viewed on my gn) Trust me blacks are black!

Disappointed, my Nexus S is really black.
Hope this is software issue and can be improved with future update.

you are correct the blackness is not pure black as my galaxy s, strange as it is using same screen technology

It is not pure black (as in a void of darkness) as it is like on my Nexus One. Very difficult to see... but seeable...

jpalo said:
I guess the minimum voltage in GN has been increased at least compared to Nexus S. Here's comparison of my Nexus S (left) and GN (right). Pic is taken with 5 sec exposure. To be honest, the difference in that photo looks slightly bigger compared to what it is real life, probably because of that exposure time.
Black is from Dead Pixel Test apps black (second) screen. https://market.android.com/details?id=net.ujacha.deadpixel
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It is 100% a software issue. I've just done the same test using the same app (thanks for the link) and what I've noticed was the black wasn't pure black like Nexus S but software buttons were PURE BLACK. Because they are the part of the screen itself, it means Google changed it on purpose (or it's a bug)
Sent from my Galaxy Nexus using xda premium

Really hope this gets fixed

My screen is totally black when viewed when any light is around...like DAMN, black.
But I definitely agree when viewed in total blackness it looks like the screen has a (dim)backlight. Hopefully software and not hardware.

I think this could possible something that google have done on purpose to make the colours more "true to life" as with my S2 the blacks were gorgeous as the screen went off, but sometimes it didn't make the image very real as blacks were sometimes darker than they actually should of been
Any i don't know :/ - would be nice to have the option ie a switch on and off switch

SLCD2 vs Super Amoled HD

I thought I might start a discussion. I have a One X on pre order and will give my Gnex to my wife.
After reading Paul O'briens review of the One X I must say that the screen sounds amazing. Is LCD the future? Is Amoled no longer the best?

Was it ever the best? Some people prefer OLED screens some prefer LCD.

robt772000 said:
I thought I might start a discussion. I have a One X on pre order and will give my Gnex to my wife.
After reading Paul O'briens review of the One X I must say that the screen sounds amazing. Is LCD the future? Is Amoled no longer the best?
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Where did you read his review please?
Sent from my GT-I9100 using Tapatalk

jameslfc5 said:
Where did you read his review please?
Sent from my GT-I9100 using Tapatalk
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This??

knightrocker said:
This??
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Thanks, I'd found that but want sure if he meant that one as it doesn't really seem like a review
Sent from my GT-I9100 using Tapatalk

robt772000 said:
I thought I might start a discussion. I have a One X on pre order and will give my Gnex to my wife.
After reading Paul O'briens review of the One X I must say that the screen sounds amazing. Is LCD the future? Is Amoled no longer the best?
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Click to collapse
No, Amoled is still the future. However, right now LCD currently is the best, since LCD has best battery life and non-pentile with ultra-high resolution. Why I say Amoled is the future it is because amoled has not require back-light which means you saw dark is completely dark, high colour saturation, 100% viewing angle and thinner. However, it has poor battery life when display white images(almost 3x higher power consumption than IPS-LCD display), too high contrast, too high colour saturation but already solved by now and high cost. That is why everyone right now prefer IPS/S.LCD 2 over HD S.Amoled. If Samsung solve this problem should be 1 year or 2. Then, LCD will be dead.

w1nter456 said:
No, Amoled is still the future. However, right now LCD currently is the best, since LCD has best battery life and non-pentile with ultra-high resolution. Why I say Amoled is the future it is because amoled has not require back-light which means you saw dark is completely dark, high colour saturation, 100% viewing angle and thinner. However, it has poor battery life when display white images(almost 3x higher power consumption than IPS-LCD display), too high contrast, too high colour saturation but already solved by now and high cost. That is why everyone right now prefer IPS/S.LCD 2 over HD S.Amoled. If Samsung solve this problem should be 1 year or 2. Then, LCD will be dead.
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HTC announced that the SLCD2 that they are using has been modified by HTC.
To give fantastic contrast levels & to improve the contrast levels.

chrisjcks said:
HTC announced that the SLCD2 that they are using has been modified by HTC.
To give fantastic contrast levels & to improve the contrast levels.
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Click to collapse
Ya, may be up to 1500 contrast, but not quite as Super amoled which is 50,000.

w1nter456 said:
Ya, may be up to 1500 contrast, but not quite as Super amoled which is 50,000.
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lol, just realised i said contrast twice.
i meant modified to improve viewing angles and contrast levels.

samoled have unnatural colors. They are too intense

From the copious amount of videos I've seen the viewing angle is great (same as any other LCD like my desire z) and the blacks look very black, nearly the same as the black bezel around it.
It all comes down to personal preferences. I think after a few hours most people are happy with what they see, I'm still happy with my standard SLCD
Sent from my HTC Desire Z using xda premium

This is the review http://android.modaco.com/page/news/_/android/htc-announce-one-series-with-one-x-r344?st=30

I was never convinced of LCD but the SLCD2 is a great one and surely better than AMOLED.
Who needs SGS3?

robt772000 said:
This is the review http://android.modaco.com/page/news/_/android/htc-announce-one-series-with-one-x-r344?st=30
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Gotta love this...
The screen is, frankly, insane. Compared to my Galaxy Nexus it was embarrassing ( I had a GN and loved the screen so if he says this, I am reassured )
This means a beats headset in box and beats enhanced audio right across the device. ( This might of answered the speculation as to whether it includes beats in the box)
Sent from my Transformer Prime TF201 using Tapatalk

You still won't get pure blacks on the One X like on the Nexus, however, the screen would be crystal clear and the colors would be natural.
I prefer Smoled.

imho, the colors are not natural on amoled's.
And who needs a green colored withe? I tested some amoled devices and this was the case..

The blacks are good enough on LCD. What I need is my whites to be white and colors to look natural. amoled screens give me a headache. They just aren't there yet. Also the LCD screens seem brighter which helps on sunny days. If you like the current set of AMOLED screens better, that's fine but I'm tired of hearing that it's better when I look at it and my eyes say NO.

i don't know if anybody noticed but color gradation is horrible on the SGSII screen, you can see the color steps very clearly in 2D games for example

Most Highres OLED Screen have Pentile screens (e.g. Galaxy Nexus). They can look pretty awful depending one the picture displayed: http://en.wikipedia.org/wiki/PenTile_matrix_family

Yes, pentile displays are awful..

Who's Selling Their Galaxy S3 - Willing to Buy

whos selling their s3? i'm willing to buy

oblad said:
whos selling their s3? i'm willing to buy
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pm me what size and color you want and ill tell you the price

ionic7 said:
pm me what size and color you want and ill tell you the price
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are you a dealer? hope youre not a swindler.

Didn't your last thread get closed?
Inb4lock

The_Biz said:
Didn't your last thread get closed?
Inb4lock
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+1. This kid thinks XDA is like craigslist lol. Go to the Marketplace kid. C'mon kid atleast read the forum rules.
sent from my galaxy s3 using tapatalk 2

babymatteo said:
+1. This kid thinks xda is like craigslist lol. Go to the marketplace kid. C'mon kid atleast read the forum rules.
Sent from my galaxy s3 using tapatalk 2
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+1000 inb4lock

I have two S3's on mint condition. They're both pebble blue, CDMA Sprint. They're looking for a new owner. PM me if you're interested.

I have a white tmo gs3 in perfect condition comes with box all accessories and an otterbox only asking $450 because im upgrading to the OneX+
Sent from my Galaxy S3 using Tapatalk 2

vdub804 said:
I have a white tmo gs3 in perfect condition comes with box all accessories and an otterbox only asking $450 because im upgrading to the OneX+
Sent from my Galaxy S3 using Tapatalk 2
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You really mean downgrading, but hey it's your money to waste

Better screen better cpu/gpu yea I think that's a downgrade I'm willing to take
Sent from my Galaxy S3 using Tapatalk 2

vdub804 said:
Better screen better cpu/gpu yea I think that's a downgrade I'm willing to take
Sent from my Galaxy S3 using Tapatalk 2
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Htc phone doug. Be carefulll
Sent from my SGH-T999 using xda premium

vdub804 said:
Better screen better cpu/gpu yea I think that's a downgrade I'm willing to take
Sent from my Galaxy S3 using Tapatalk 2
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How is that a better screen? To each his own I guess. HTC is so against the development community its an insult.
Sent from my SGH-T999 using xda app-developers app

elracing21 said:
How is that a better screen? To each his own I guess. HTC is so against the development community its an insult.
Sent from my SGH-T999 using xda app-developers app
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I say that because Super LCD2 is better than Super Amoled hd period
Sent from my Galaxy S3 using Tapatalk 2

bikrame said:
Htc phone doug. Be carefulll
Sent from my SGH-T999 using xda premium
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Bikrame is ABSOLUTELY right bro, also take it from me, I used to be a DIE HARD HTC fan, however, after countless years and devices later I just got sick and tired of waiting for them (HTC) to get their **** together. One can only take so much disappointment before they lose all hope and walk away. I've owned only the latest and greatest of HTC phones on the market, and it was only a matter of inevitable time before the random reboots, crashes and frozen screens come into play, you just get fed up of having to constantly take out the battery to fix your phone... SAMSUNG definitely gets the everyday needs of real world use. Love my SGS3 !!!
Just take a quick look at the link below if you're still not convinced bro... In the end, the choice is totally yours to make... We here at XDA just try to help and inform each other the way family would. Best if luck though bud.
http://www.samsung.com/global/business/semiconductor/minisite/memory/
Sent from my SGH-T999 using xda premium

vdub804 said:
I say that because Super LCD2 is better than Super Amoled hd period
Sent from my Galaxy S3 using Tapatalk 2
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Click to collapse
Not to my eyes. I prefer the samoled hd screen over the slcd2 any day. But maybe my eyes are messed up....
Sent from my SGH-T999 using xda app-developers app

Super AMOLED HD
You’ve probably heard lots of press regarding this display as it’s been the frontman for Galaxy S phones for quite some time now. One of the best features about these display panels is that their black levels are*unparalleled–that is to say that when displaying black, the screen is practically off. This results in much richer detail in images (it’s black level, not white level that increases this quality). Combined with very high brightness and great viewing angles, the result is excellent contrast ratio which makes Super AMOLED displays perform valiantly in the outdoors. You may also hear people describe Super AMOLED colors being “vibrant” and/or “punchy,” which is also due to this great contrast ratio.There are some drawbacks however to this display tech. Due to the nature of how the colors are delivered, Super AMOLED tend to be blue/greenish in color repdouction, which can be unwanted for those preferring neutral color balance. In addition, although the display consumes little power when displaying black, web browsing–which predominantly uses a white background–saps battery life disproportionately quickly. Finally, the display of the Galaxy S III uses a PenTile grid, which decreases*the*actual number of subpixels used on the display (and thus the pixel density)–this is noticeable at high*magnifications, but for most users will go unnoticed.
Super LCD 2
Super LCD 2 is a great all around screen as well. Although it doesn’t have killer black levels or astounding brightness, it has great white balance and accurate color reproduction as well as a true RGB subpixel layout which renders the finest bit of detail. In Chris Ziegler’s review of the One X, he notes that the Super LCD 2 display “[has]*got a near-perfect 180 degree viewing angle and perhaps the most accurate color reproduction and color temperature available…” and furthermore, “At 720p, it falls well into ‘retina’ territory where the individual pixels become invisible to the naked eye.”ConclusionIf the Galaxy S III’s display was a Super AMOLED HD Plus with an RGB stripe display, this debate would simply be a matter of whether you prefer color accuracy or vibrancy of the display, with which the argument could be made that while important for computers, color accuracy is not [as] important on a phone and thus the Super AMOLED’s colors are more*aesthetically*favorable. However taking the PenTile arrangement into account, the rest of the factors can seem to be a moot point to many buyers, especially when they see images like this:
The truth is, unless you have microscopic vision or are purposely looking for image artifacts, there is no way you are going to notice a difference on the screen.
After all of that, it boils down to a matter of personal preference
Sent from my SGH-T999 using xda premium

dmarco said:
Super AMOLED HD
You’ve probably heard lots of press regarding this display as it’s been the frontman for Galaxy S phones for quite some time now. One of the best features about these display panels is that their black levels are*unparalleled–that is to say that when displaying black, the screen is practically off. This results in much richer detail in images (it’s black level, not white level that increases this quality). Combined with very high brightness and great viewing angles, the result is excellent contrast ratio which makes Super AMOLED displays perform valiantly in the outdoors. You may also hear people describe Super AMOLED colors being “vibrant” and/or “punchy,” which is also due to this great contrast ratio.There are some drawbacks however to this display tech. Due to the nature of how the colors are delivered, Super AMOLED tend to be blue/greenish in color repdouction, which can be unwanted for those preferring neutral color balance. In addition, although the display consumes little power when displaying black, web browsing–which predominantly uses a white background–saps battery life disproportionately quickly. Finally, the display of the Galaxy S III uses a PenTile grid, which decreases*the*actual number of subpixels used on the display (and thus the pixel density)–this is noticeable at high*magnifications, but for most users will go unnoticed.
Super LCD 2
Super LCD 2 is a great all around screen as well. Although it doesn’t have killer black levels or astounding brightness, it has great white balance and accurate color reproduction as well as a true RGB subpixel layout which renders the finest bit of detail. In Chris Ziegler’s review of the One X, he notes that the Super LCD 2 display “[has]*got a near-perfect 180 degree viewing angle and perhaps the most accurate color reproduction and color temperature available…” and furthermore, “At 720p, it falls well into ‘retina’ territory where the individual pixels become invisible to the naked eye.”ConclusionIf the Galaxy S III’s display was a Super AMOLED HD Plus with an RGB stripe display, this debate would simply be a matter of whether you prefer color accuracy or vibrancy of the display, with which the argument could be made that while important for computers, color accuracy is not [as] important on a phone and thus the Super AMOLED’s colors are more*aesthetically*favorable. However taking the PenTile arrangement into account, the rest of the factors can seem to be a moot point to many buyers, especially when they see images like this:
The truth is, unless you have microscopic vision or are purposely looking for image artifacts, there is no way you are going to notice a difference on the screen.
After all of that, it boils down to a matter of personal preference
Sent from my SGH-T999 using xda premium
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Click to collapse
I actually do notice the difference though. Samoled hd has deeper blacks and whiter whites than the slCD2. So in the contrast category, Samsung wins imo. Although color reproduction, the slcd 2 had more natural tones.
sent from my galaxy s3 using tapatalk 2

Anyone in jersey or.ny can pm me. i got 2 blue 16gb and 1 white 32gb from my upgrades. All brand new never open and still sealed
Sent from my SGH-T999 using XDA App

oblad said:
didnt your last girlfriend leave you for a real man?
babymatteo thinks hes one of us. but look at his name.. sounds like an illegal. go get a social sec # barrito.. c/mon taco maker read the warning signs before entering the US.
sarni84 << +1000 ass kisser.,..and god knows what else connected to 'ass'
dont like blue
sure.. ill pm you.
price?
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I have reported you and I hope all real members will do the same. We don't need your ignorant, abusive, trash posts here.

And this thread is done as well as the OP
Thread closed
FNM

[Q] New screen is dimm

Hi!
I had my One X screen repalced, but the new one is not as bright as the original, what could be the causes?
Thanks!

ChaosPope said:
Hi!
I had my One X screen repalced, but the new one is not as bright as the original, what could be the causes?
Thanks!
Click to expand...
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Different manufacturer. There are 2 types of panel for the HOX. One of which is dimmer and also cooler colour temperature. If your whites look bluer or colder then you have the dimmer panel.
Sent from my HTC One X using xda premium

stuart0001 said:
Different manufacturer. There are 2 types of panel for the HOX. One of which is dimmer and also cooler colour temperature. If your whites look bluer or colder then you have the dimmer panel.
Sent from my HTC One X using xda premium
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Thanks a lot mate

Bad news, this is not the case. The same screen on a diffrent One X is bright as hell, like it should be, but not on mine.. Any other ideas? The phone itslef has a waist-height fall on pavement, sahttered the glass, the screen was ok. Now the repair guy is startled and doesnt know what to do - why the screen is dimm, could it be a backlight problem caused on the motherboard?

It might be a cheap, non oem screen.
How much did you pay for it, proper ones are not cheap.

Its 85Ls so in dollars its about 170$, but its hard to compare because of the currency.

Screen question

I currently have a Note 3 and I was looking to replace it with the G3. My only problem is that I'm really used to the awesome look of a Super AMOLED screen and I was wondering if anyone has compared the Note 3's screen to the G3 and can tell me if the WQHD IPS panel has the same if not better look and contrast to it. I'm just tired of my phone and its annoying physical home button on the front, and I would much rather have a G3 because it looks better and its almost the same screen size. I know that Samsung will be keeping their annoying button because of their fingerprint sensor so I want something different. If no one has compared them, are there any places state side that have a demo model to look at yet? thanks in advance.

Here are the numbers, the Note 3 isn't included but you can get an idea

Kawaisa said:
Here are the numbers, the Note 3 isn't included but you can get an idea
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Given the AMOLED will always retain deeper blacks and whites is the G3 that much worse? I'm not that familar with the meaning of the numbers in terms of how each one looks on the screen.

No IPS panel is gonna beat Amoled in contrast since Amoled shows pure black. The issues that I have with Amoled are, pentile matrix and ghosting
Sent from my SM-N900T using XDA Premium 4 mobile app

aim1126 said:
No IPS panel is gonna beat Amoled in contrast since Amoled shows pure black. The issues that I have with Amoled are, pentile matrix and ghosting
Sent from my SM-N900T using XDA Premium 4 mobile app
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I'm aware of that, but does it still have good contrast? I have IPS panels in devices and and I am not very impressed with their images. I haven't encountered any ghosting on my AMOLED yet but I think a change can be good. My N7's screen is noticeably worse than that of my note when I compare them side by side as is my now dead G Pad. From what I have read people are generally happy with the G3's screen, but since 100% of the time you are on your phone you look at the screen, I want to make sure that it looks as nice as it sounds and can provide deeper saturation depending on what I am doing (games, movies or just on xda of course) as the AMOLED does. I havent had a IPS panel phone in quite sometime, but rather other devices of sorts so I don't know how a smaller screen would look in these scenarios.

Pilz474 said:
I'm aware of that, but does it still have good contrast? I have IPS panels in devices and and I am not very impressed with their images. I haven't encountered any ghosting on my AMOLED yet but I think a change can be good. My N7's screen is noticeably worse than that of my note when I compare them side by side as is my now dead G Pad. From what I have read people are generally happy with the G3's screen, but since 100% of the time you are on your phone you look at the screen, I want to make sure that it looks as nice as it sounds and can provide deeper saturation depending on what I am doing (games, movies or just on xda of course) as the AMOLED does. I havent had a IPS panel phone in quite sometime, but rather other devices of sorts so I don't know how a smaller screen would look in these scenarios.
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According to the gsmarena review. The contrast is lacking compared to other IPS panels. Specially the g2's panel. I'm with you I love the deep blacks that you get on Amoled screens. I could not stand the contrast of my m8 and it was the main reason why I returned it. The g2 screen is the only IPS panel that has truly impressed me. In fact I thought the phone had an Amoled screen the first time I saw it
Sent from my SM-N900T using XDA Premium 4 mobile app