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I recently did a DIY dock station in my car. By the time I finished setting everything up it was quite dark outside. I really wanted to go for a test drive to test my GPS and new "Car Home" screen but came to a very fast conclusion. Our screens are too bright to be on during night driving!
Even at the lowest settings, the brightness is incredibly distracting. I use a black background and try to keep a minimalist style home screen but it is still too much. I remembered seeing the single color screens from Jeff Sharkey's blog and racked it down. I have seen some older posts referencing this subject and did some google searches with no major Galaxy S project results.
The concept seems simple enough and would provide benefit to so many people but I am no dev and do not fully understand the complications involved. Astronomers, Pilots, Soldiers, Drivers are just some that I would see benfitting from the ability to drop displays into Red or Blue "night modes."
I guess my concerns are:
Is this already a project?
Is it expected to be after the Froyo crisis?
Do enough people think as I do on this to make it even worth while?
NOTE: I in no way intend to reference the SAMOLED as anything less than exceptional. I rather have bright than dim any day!
I'd love to have this...I wouldn't need sunglasses to surf the web before sleeping.
I agree with you that there's a huge benefit to having "night mode" option for many apps. Due to the S-AMOLED screen, our phones are pulling over 1 watt of power for a white screen at max brightness, according to DisplayMate [1]. A black screen draws virtually 0 watts. So it makes every bit of sense for us to use dark screens whenever possible.
I haven't tried Cyanogen with RenderFX yet. Any comments on using color calibration to achieve this?
From what I understand, the usage of a primarily red display is nearly as efficient or more so than a darkened screen. Red provides awesome viewing in low light situations and does not effect your eyes after they have adjusted to low light.
Sent from my SAMSUNG-SGH-I897 using XDA App
It is time to start pushing developers of apps you like but you dont get BLACK skins/modes/themes. Start pressing developers to optimize every app they create or update by including BLACK theme to save our batteries and often life saving extra minutes of being connected before we they are drained.
Many people will appreciate if there will be at least section or website listing such a soft which contains apps with black themes.
One of worst examples is Talk Google.
Purely white and with no choice, at all, maybe good for LCD phones,
but hostile for AMOLED batteries.
What's needed I think is an accessibility setting that inverts colors, I'm photosensitive so it would be lovely to turn all the painful white on my phone to a nice non-irritative black.
But
it would need to be app based selective.
would work nice for Google Talk but Skype wihch i guess will never have black skin,
especially under strictly conservative and not always practical Microsoft management mindsets, Skype would turn to orange-like tones after reversing colours.
so i think that black skin is simple to including, and doesnt require crerativity to compose, its just white on black, easy peasy quick and nice.
so why it is not standard yet?
Agree i have a GNex and would love apps to have black themes, like some twitter apps as well as facebook. The major apps should have black themes as Samsung is one of the largest handset makers and they are obsessive with AMOLED
White screens are so terrible in the dark D:
Good
Well written
mass.w said:
It is time to start pushing developers of apps you like but you dont get BLACK skins/modes/themes. Start pressing developers to optimize every app they create or update by including BLACK theme to save our batteries and often life saving extra minutes of being connected before we they are drained.
Many people will appreciate if there will be at least section or website listing such a soft which contains apps with black themes.
One of worst examples is Talk Google.
Purely white and with no choice, at all, maybe good for LCD phones,
but hostile for AMOLED batteries.
Click to expand...
Click to collapse
I agree 100%.
I have been BEGGING imo and others to release dark themes for months.
Sent via tapatalk using the Samsung Galaxy Note
mass.w said:
It is time to start pushing developers of apps you like but you dont get BLACK skins/modes/themes. Start pressing developers to optimize every app they create or update by including BLACK theme to save our batteries and often life saving extra minutes of being connected before we they are drained.
Many people will appreciate if there will be at least section or website listing such a soft which contains apps with black themes.
One of worst examples is Talk Google.
Purely white and with no choice, at all, maybe good for LCD phones,
but hostile for AMOLED batteries.
Click to expand...
Click to collapse
You are right. It's beter for the planet too
Sent from my GT-I9100 using xda premium
some amoled screens have those nasty lines from the darker backgrounds though. i thought that was an ongoing issue.
How is that? Amoled and Super Amoled are supposed to have less battery usage. It used to consume only about 7:40% from the battery.
Sent from my S+
whereas LCD consumed up to 70% of mean battery capacity an all white screen on AMOLED should only consume 50%. There would have to be something else like processor, with today's dual core, 1.5 freq, etc. eating battery life. Lithium is an old technology that is now affordable. It is also a highly reactive and temperamental technology too. Everything from heat to humidity are enemies to lithium.
Besides this though, I agree. We can change backgrounds, etc in Linux and Windows, why not Android?
White screens are so terrible in the dark x2
we all agree with that, but i think developers will change the layouts of games or so
having amoled plus screen and using it with %25 brightness to save battery life is just
Black screens would be nice to save battery. I use bgoog as my home page in the browser to save power.
I leave my brightness at the lowest setting majority of the time, but leave it in auto when I'm out in the sun.
S2 Skyrocket
I'm using ics resurrection remix with my galaxy s2. All gapps are black themed along with messaging apps, etc. However, normal apps are lacking with black themes I 100% agree
Sent from my GT-I9100 using XDA
Hi,
I have a ZTE Blade and the screen various in some versions, some have AMOLED and others not. Has some way to figure out if I have a AMOLED screen or not ?
Dark skinned apps n themes look way better imo...hope developers take note.
Dark skinned apps do save a lot of battery and save your eyes from that bright white screen when you look at your phone in the middle of the night. But the white is nice at the same time. I guess I'm indifferent about it.
If you cant spot difference in darkness, go and google it. Find out tech-spechs from websites.
Sent from my XT910 using XDA
Do you realize the menus are now all in white?
Are they mad?
AMOLED's have terrible white, and their whites are never accurate.
Do they want our screens to die faster or something?
There's a reason previous Touchwiz-es all have black menus.
An advantage to black menus is that AMOLED's use absolutely no power for black
and almost twice the power for whites compared to LCD's
So what the hell are they thinking?
Livebyte said:
Do you realize the menus are now all in white?
Are they mad?
AMOLED's have terrible white, and their whites are never accurate.
Do they want our screens to die faster or something?
There's a reason previous Touchwiz-es all have black menus.
An advantage to black menus is that AMOLED's use absolutely no power for black
and almost twice the power for whites compared to LCD's
So what the hell are they thinking?
Click to expand...
Click to collapse
They are thinking more letters from the OCD types.
How long does anyone here keep a device? 6 months? a year? Does anyone really use this as a professional device for Photography or video work? Or just snapshots and video logs where all that can be fixed with SW. As long as they have replaceable batteries, and people can charge every night I don;t think battery life is a concern. The Note 2 battery life is insane for such a large phone. I have never used my spare. I was using it at about 4PM on my S2 previous to the Note.
Troll more.
I'm not 100% sure but I think that it might be changeable. I've seen some of the same pictures show in both black and white.
Edit: or its a mixture of Black and white menus....
But either way.... easily changed.
Thats why you gain root and wait for a rom.
shoman94 said:
I'm not 100% sure but I think that it might be changeable. I've seen some of the same pictures show in both black and white.
Edit: or its a mixture of Black and white menus....
But either way.... easily changed.
Click to expand...
Click to collapse
Glad it's easily changed. But why did Samsung went to White?
I noticed the white menus too, and I really don't like it.
I hope it's switchable. And I hope when updates finally come to the S3 that they don't change over to white menus.
I usually just use custom ROMs, but I had considered going back to stock if there was an update.
Sent from my Wicked-powered SGH-T999 via Tapatalk 2
Livebyte said:
Do you realize the menus are now all in white?
Are they mad?
AMOLED's have terrible white, and their whites are never accurate.
Do they want our screens to die faster or something?
There's a reason previous Touchwiz-es all have black menus.
An advantage to black menus is that AMOLED's use absolutely no power for black
and almost twice the power for whites compared to LCD's
So what the hell are they thinking?
Click to expand...
Click to collapse
But why does it matter to you since you're not getting the phone anyway?
barondebxl said:
But why does it matter to you since you're not getting the phone anyway?
Click to expand...
Click to collapse
Hey! Be nice.
This forum is open to all, if there getting the phone or not.
He's just posting what's troubling on the device.
Reviewers said:
Hey! Be nice.
This forum is open to all, if there getting the phone or not.
He's just posting what's troubling on the device.
Click to expand...
Click to collapse
What is your problem? I wasn't being mean that was a simple question.
Livebyte said:
Do you realize the menus are now all in white?
Are they mad?
AMOLED's have terrible white, and their whites are never accurate.
Do they want our screens to die faster or something?
There's a reason previous Touchwiz-es all have black menus.
An advantage to black menus is that AMOLED's use absolutely no power for black
and almost twice the power for whites compared to LCD's
So what the hell are they thinking?
Click to expand...
Click to collapse
Things have changed a lot since the AMOLED display on the original Galaxy S. The OLED's last much longer, power efficiency is drastically improved and their screen tunings have also improved. And about accurate whites, that is simply not true. The Galaxy S3 had a more accurate white point than the HTC One according to DisplayMate's own tests, even with the S3's green push.
GGXtreme said:
Things have changed a lot since the AMOLED display on the original Galaxy S. The OLED's last much longer, power efficiency is drastically improved and their screen tunings have also improved. And about accurate whites, that is simply not true. The Galaxy S3 had a more accurate white point than the HTC One according to DisplayMate's own tests, even with the S3's green push.
Click to expand...
Click to collapse
I hope so. In that case, I think Samsung believes its own display is efficient enough to have whites in their menus.
Livebyte said:
Are they mad?
Click to expand...
Click to collapse
The answer's hiding in plain sight.
That and S-600 should be 20% more efficient than the SGS3 and Octa potentially more so. If you want to worry about something the additional sensors, especially the one that allows the display to recognize something hovering over it, probably use more power than the white menus do. There's an option under power saving to turn off the sensing of the S Pen when it's not removed on the N2. The great thing about the white menus is that, in direct sunlight, it's a ton easier to read dark text on a white background.
BarryH_GEG said:
The answer's hiding in plain sight.
That and S-600 should be 20% more efficient than the SGS3 and Octa potentially more so. If you want to worry about something the additional sensors, especially the one that allows the display to recognize something hovering over it, probably use more power than the white menus do. There's an option under power saving to turn off the sensing of the S Pen when it's not removed on the N2. The great thing about the white menus is that, in direct sunlight, it's a ton easier to read dark text on a white background.
Click to expand...
Click to collapse
Thanks. That cleared up a lot of my misunderstandings.
I will still have to see how it affects the burn-in issue of AMOLED's.
Livebyte said:
I will still have to see how it affects the burn-in issue of AMOLED's.
Click to expand...
Click to collapse
There are 100MM Galaxy devices of various forms that have been in people's hands for years. The percentage complaining about burn-in is I'd guess less than single digit percentages. So it can definitely happen but I'd guess that it's not happening in large volume based on average screen-on time or it's so subtle people don't even notice.
P.S. - With your GIANT "One" signature you'll be viewed as a Palestinian in Jerusalem on the SGS4 forum.
BarryH_GEG said:
P.S. - With your GIANT "One" signature you'll be viewed as a Palestinian in Jerusalem on the SGS4 forum.
Click to expand...
Click to collapse
ROFL HAHAHAHHA. that's messed up hahahha.
BarryH_GEG said:
There are 100MM Galaxy devices of various forms that have been in people's hands for years. The percentage complaining about burn-in is I'd guess less than single digit percentages. So it can definitely happen but I'd guess that it's not happening in large volume based on average screen-on time or it's so subtle people don't even notice.
P.S. - With your GIANT "One" signature you'll be viewed as a Palestinian in Jerusalem on the SGS4 forum.
Click to expand...
Click to collapse
I like your perception of my sig. HAHAHAAAAA
Maybe I'll have both devices on my sig so people won't judge me because of my sig.
Livebyte said:
I like your perception of my sig. HAHAHAAAAA
Maybe I'll have both devices on my sig so people won't judge me because of my sig.
Click to expand...
Click to collapse
We won't judge you, i won't. I just thought that Barry comment was hilarious, i didn't expect it
As it seems there are a few threads on auto brightness and color issues, i figure i should do the best i can to explain how it works on the S4, and mobiles in general. I work in Television/Film and have been shooting for almost a decade.
ANY QUESTIONS, feel free to PM me, i'll probably ask for very specific photo's (ISO/WB and other data) so i can help you in a professional manner, and i'll try to reply within 6-8 hours. No one should live with a bum screen!
To fully understand what im trying to express, load the attached image onto your phone, and on a bright sunny afternoon, print out the attached image on a small piece of decent photo paper, grab your phone, and find a room in your house that has only fluorescent lights and close any windows or shutters.
Look at the photo in the sunlight; note the colors. Now go inside to the fluorescent dark room, note the change in what the colors look like, and that white is still pretty white (thats your brain), then turn your camera flashlight on (LED), and note the changes in color again (some reds may look purplish or greens bluish), but white still looks kinda white (should look very light blue). Now repeat and look at the print out versus the same image on your phone screen; it should match best under 6500k lighting, but still be off (thats a printed image vs monitor thing though). Also depends on your printer ink type (dye/pigment), color space, etc etc etc. Your eyes take raw data in, but your brain does the magic, and says 'nope, thats white', so you perceive it as 'white' or 'white enough' and you 'know' it is meant to 'represent' white.
Hardware - This includes an ambient light sensor. The way these work is similar to metering systems in cameras; they measure the amount of light hitting a photodiode. Even in high end (DSLR) cameras, sometimes the light meters are junk. On cell phones, they are typically pretty crappy. The iPhone 5's have excellent ALS (ambient light sensors) and they ramp up/down smoothly; much better than any other device i've used.
The way the ALS works in most devices is simple; there are several photodiodes, each tuned for a specific spectrum of light. Say two for 3200k, two for 6500k, two for whatever else, etc, and they basically average the reading, apply a curve, and adjust the screen appropriately. They do NOT accurately measure color temperature very well, and 'see' brightness only in limited spectrums, meaning their idea of what 'bright' and 'dim' is may be vastly different from the human eyes' perceived 'bright' or 'dim'. Also, the 'curves' applied don't match up that well with how the human eye perceives brightness; its really amazing we can fake it as close as we can, really, but most of the magic lies in your brain.
Lighting - this is kind of tricky; and i don't feel like getting into it too deeply, but what you perceive as 'white' is mostly dependent on your brain; not your eyes or the lights around you. Think about reading a book (a real book) inside a library under fluorescent lights; the pages are white, even though the color temperature might be 5000k or 6500k. Now that same book outside; thats 5800k. Now under some old incandescent lights; that might be 2800k. Yet you know it SHOULD be white. Thats your brain. And thats reflected light; its based on the ambient color temperature around you; so reflected light 'looks' white or blue or whatever.
Your phone screen (galaxy S IV) is basically white balanced at 6600k , so it will appear most white when around lighting around 6500k, which is on the bluer side of daylight/cloudy and indoors.
Screen Mode - The Galaxy S IV has a feature that allows it to dynamically change based on the ALS, or can be overridden by the user, which mostly affects color gamut, and either amps up contrast and saturation while shifting hues slightly, or flattens them to a more realistic (usually most people prefer high saturation/high contrast images) image.
Sampling frequency - i have no idea what the ALS sensor samples at, or any definitive specs on the exact sensor and how it interacts with auto brightness, its priority, etc (yet, ive emailed Samsung and i wouldn't mind coming up with a simple app to adjust this if i can figure out the sensor specs and their software). But certain lights (fluorescent mostly) flicker at either 50hz or 60hz depending on their AC current, which may, at times, interfere or give bad readings to the ALS depending on the ALS sensor reading timings (again i do not know exactly what those values are, i suspect they are long as my S III and S IV typically react about a half-second behind lighting changes).
DETERMINING IF YOU HAVE A BAD DISPLAY
All together, it works pretty darn good, if a bit slowly, but there seems to be a lot of confusion and people wondering if their screen is bad. The BEST and EASIEST way is to go to any cell store or mall, and compare YOUR screen and the SAME image to another S IV, with the same settings. The best settings for this are to turn power saving OFF, turn off ALL power saving apps, turn auto brightness OFF, turn brightness up ALL THE WAY, go to 'settings', 'display', 'screen mode', and change the setting to 'movie'. Compare several IDENTICAL images or pages. Then change the 'screen mode' to 'standard' and compare the same images.
While doing so, be sure to check out images such as the one i provided and make sure the colors match, grays are grays or at least the same slight caste of pink/green/etc, and while doing so, TILT THE SCREENS at various angles together (level surface, side by side, tilt to 45 degrees at the same time on all 4 axes), and look for discoloration or bleeding; if you see big differences between two or three other phones and yours, you got a bum screen. I haven't seen a 'bad' one yet, and i made the poor AT&T guy open up five of them and let me play with them (AMOLED also has jet black splotches with full blacks in a fully black room; i wanted the screen with the least noticeable splotches).
Thanks for this. Question though. When I pull my keyboard up to type on something or if I'm in a YouTube video and I tap the screen to bring up the progress bar the color shifts dramatically. I've tried many settings and it always does this. Also tried it on another s4 multiple ones did the same thing...
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Just hoping for a fix for it
The white balance can actually be calibrated by changing the calibration levels of the LEDs sitting under the screen
Lets hope for the best
jetlitheone said:
Thanks for this. Question though. When I pull my keyboard up to type on something or if I'm in a YouTube video and I tap the screen to bring up the progress bar the color shifts dramatically. I've tried many settings and it always does this. Also tried it on another s4 multiple ones did the same thing...
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Click to expand...
Click to collapse
ok, do me a favor, I would prefer if you had either a prosumer camera you could use, or better yet a DSLR you could borrow that i could guide you through how to take two shots of the differences with all the important variables locked down so i can figure it out for you. I believe the screenshot feature ignores the 'Screen Mode' settings, as it should (you wouldnt want a screen mode dictating recording colorimetry options), so it does require real photos to figure out.
Have you changed the standard 'Screen Mode' setting or left it at 'Adapt Display' or 'Dynamic'? Those will keep changing it; Professional photo and movie are more flat, but they do not change. Again disable power saving mode, power saving apps, turn off auto brightness, (in this case set brightness to where you want it) and check it out again; if it doesnt change colors, (which it should not), you have no issues; its a normal 'feature' of the device. The idea is to limit all variables. Try that and PM me the results. If the colors no longer shift, the issue was 'adapt display' or 'dynamic' Screen Modes. Auto brightness/powersaving mode/power saving apps should only affect brightness; we are only disabling them to limit perceived changes.
To try to trouble shoot this, change screen mode to a static setting like 'professional photo' or 'movie' in Screen Mode and turn off auto brightness, turn off power saving and turn off all power/battery saving apps/etc, bring up a Youtube video and play it, then bring up your keyboard and see if the color shifts (it shouldnt if you have changed Screen Mode to Pro Photo/Movie and disabled powersave/all battery apps/auto brightness). Then let me know if that fixes it via PM.
rapaholic999 said:
Just hoping for a fix for it
The white balance can actually be calibrated by changing the calibration levels of the LEDs sitting under the screen
Lets hope for the best
Click to expand...
Click to collapse
problem is most calibration settings/programs and methods i know of are non-pentile and are mostly software fixes for what ive used; AMOLED is different PenTile (RGBG) than what i tried to fix before which was Motorola Atrix 4G PenTile (RGBW, red green blue white), CCFL LCD is way different (more what im used to, as well as LED LCD and even IPS is easier as it is still RGB), and all the curves software etc are all proprietary to manufacturers. Granted controlling just the R/G/B/G LED's would help, but getting the curve right and correcting might take longer than the Galaxy S V arrival. I spent months calibrating all my gear; most of it is 2-3 years old, and at least 6-12 months old before i get it all settled and can rely on it for a given job. Usually i rely on calibrated displays, knowing my own color limitations, RGB histograms, vector scopes, etc (i have a very slight red/green color weakness, but extremely sharp vision and i know how to work around my limitations).
I actually emailed Samsung about this for as much information as i could get (not much so far but im digging). I have a friend playing with LUT curves on his S IV and he says its a close second to the iPhone screens for AdobeRGB in 'movie' mode, which i happen to agree with; its pretty flat, but the contrast on greens is still high, which again is a PenTile RGBG specific issue; we are both vets of backlit RGB panels. My friend also works with the same company i consult/represent; it took him almost three months to properly calibrate LUT curves between a single sensor and a simple 480P CCFL LCD display, and that was with full manufacturer support. Colorimetry is a science.
jetlitheone said:
When I pull my keyboard up to type on something or if I'm in a YouTube video and I tap the screen to bring up the progress bar the color shifts dramatically. I've tried many settings and it always does this.
Click to expand...
Click to collapse
Same here. Thanks for the write up but I'm seeing the same thing.
I dim the display with the Screen Filter app for reading in bed and whenever my keyboard pops up (SwiftKey, TouchPal or stock) the entire screen gets a green cast. Under these conditions it is very dramatic.
I use manual brightness and turned off the Autoadjust Screen Tone setting
Some other apps exhibit a fluctuation in color cast when I put my finger near the screen which is double weird. :-\
-darren
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Yes it's weird I don't know what's happening. Anyways I'd toy turn the brightness up past half way the color cast goes away. .. Not sure what it is
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
If you go to a settings menu and scroll up and down fast, my phone gets a purple tint and leaves like a shadow of the words behind... Kinda annoying.. Anyone else notice this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Yes smearing
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
MrPlNK said:
If you go to a settings menu and scroll up and down fast, my phone gets a purple tint and leaves like a shadow of the words behind... Kinda annoying.. Anyone else notice this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Click to expand...
Click to collapse
thats because AMOLED usually have a slower response time, upwards of 20ms
jetlitheone said:
Yes smearing
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Click to expand...
Click to collapse
yep, i have some old LG CCFL LCD monitors with a claimed 2ms (more like 6-10ms) response time from 2006; they were about $300 each back then. i also have a new IPS with 30ms response time; it is annoying.
also some pentile displays are slower between subpixels; my Atrix 4G had very slow blue white pixels (RGBW) so you had a weird dimming as well when scrolling through texts.
Settings, Display, disable Auto Adjust Screen Tone' as well, its a power saving thing i forgot to mention in the first write up.
Slade8525 said:
thats because AMOLED usually have a slower response time, upwards of 20ms
yep, i have some old LG CCFL LCD monitors with a claimed 2ms (more like 6-10ms) response time from 2006; they were about $300 each back then. i also have a new IPS with 30ms response time; it is annoying.
also some pentile displays are slower between subpixels; my Atrix 4G had very slow blue white pixels (RGBW) so you had a weird dimming as well when scrolling through texts.
Settings, Display, disable Auto Adjust Screen Tone' as well, its a power saving thing i forgot to mention in the first write up.
Click to expand...
Click to collapse
it can be fixed with color adjustment though so maybe a software update can fix it as well
I bought the s4 the first day it came out, after using it for couple of days i started noticing weird stuff on my photos, especially on low light photos... i went to att and one of the rep said its a known issue its called "elephant effect" im into photography and i havent heard that term before, he also said that it will be fix on the next update... so i went home and did some research about "elephant effect" unfortunately i cant can find anything related with my issue... i also did some pixel peeping and im 100% positive there's something off on the display of my phone.
Sample photos
These photos are just screenshots
You can see those weird artifacts on the pictures, i also compared my screen display to my coworker's phone and my phone was way off...
What i would suggest for those who wants to buy the new s4 or currently users, is to check the display by taking a photo on a low light and do some pixel peeping...
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Has anyone else noticed a color and contrast shift from the top to the bottom of the screen? In very low brightness settings my screen gradients from crushed black levels and a reddish hue at the top of the screen to a acceptable black levels and an more green hue at the bottom of the screen. I can try to get some pictures with my DSLR tonight to illustrate. I'll have to compare to other S4's in the same scenario. In every day use its not too noticeable, but while watching video in a completely dark environment with the brightness all the way down it now bothers me some.
Anyone have a similar experience? Thanks!
Yes I notice it. It fixes itself if you change the brightness with an app. so I'm guessing its a weird kernel thing. It only happens when the keyboard is up
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
jetlitheone said:
Yes I notice it. It fixes itself if you change the brightness with an app. so I'm guessing its a weird kernel thing. It only happens when the keyboard is up
Click to expand...
Click to collapse
I notice it with or without the keyboard. I use the Display Tester app to display a full screen white or 50% gray and now that I look at it, the red hue at the top of the screen is visible at all but 100% brightness levels. What app were you using to dim the screen, I would like to try it out.
Here is an exaggerated image I made showing the gradation (50% gray). The top of the screen would be to the left. Black levels get crushed at the top of the screen also.
(Sorry for the bad image compression, my screen doesn't have the extreme banding in it!)
WestonWW said:
I notice it with or without the keyboard. I use the Display Tester app to display a full screen white or 50% gray and now that I look at it, the red hue at the top of the screen is visible at all but 100% brightness levels. What app were you using to dim the screen, I would like to try it out.
Here is an exaggerated image I made showing the gradation (50% gray). The top of the screen would be to the left. Black levels get crushed at the top of the screen also.
(Sorry for the bad image compression, my screen doesn't have the extreme banding in it!)
Click to expand...
Click to collapse
screen adjuster, lags like hell but you can see it fixes it.
set values +5 for each color.
batanuenio said:
I bought the s4 the first day it came out, after using it for couple of days i started noticing weird stuff on my photos, especially on low light photos... i went to att and one of the rep said its a known issue its called "elephant effect" im into photography and i havent heard that term before, he also said that it will be fix on the next update... so i went home and did some research about "elephant effect" unfortunately i cant can find anything related with my issue... i also did some pixel peeping and im 100% positive there's something off on the display of my phone.
Sample photos
These photos are just screenshots
You can see those weird artifacts on the pictures, i also compared my screen display to my coworker's phone and my phone was way off...
What i would suggest for those who wants to buy the new s4 or currently users, is to check the display by taking a photo on a low light and do some pixel peeping...
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
ill check that out; it looks like compression artifacts; what settings are you using when you shoot? also to internal or external SD card? and speed rating/brand/type of external SD card?
jetlitheone said:
screen adjuster, lags like hell but you can see it fixes it.
set values +5 for each color.
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I tried that and it made little to no difference on my phone. I went to the AT&T store on my lunch and compared my phone to the display unit. My phone has a noticeable difference. The rep at the AT&T store suggested I take it to the local repair depot... I've never been there before but I hope they don't try to pawn a refurb phone off on me to replace my 17 day old S4. I'll let you guys know what I find out.
Slade8525 said:
ill check that out; it looks like compression artifacts; what settings are you using when you shoot? also to internal or external SD card? and speed rating/brand/type of external SD card?
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I was using auto mode on my camera and used the internal mem.
batanuenio said:
I was using auto mode on my camera and used the internal mem.
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did you zoom in, and what size (pixel wise) did you use? thats textbook macroblocking.
Hi my s4 have a yellow tint, i compare with other s4 and my s4 screen have much yellow in white screen, is faulty? Is possibile to fix it with gamma correction?
I'm just wondering... I know the summary says LED3, but I'm wondering if they're mutually exclusive. The summary also says the One M8 comes in 16GB and I've never seen that, so I don't fully trust the summary to start with.
What I'm really asking is, am I doing my M8 any favors by using app settings that blacken as much as possible to save battery on AMOLED screens? In theory it sounds like it would work. But it seldom looks as good as other themes. And frankly, with a decent ROM/Kernel combination, this battery can pull two days, so, why not, you know? Still, I'm wondering if there's a benefit at all.
No it does not have a amoled
dragontology said:
I'm just wondering... I know the summary says LED3, but I'm wondering if they're mutually exclusive. The summary also says the One M8 comes in 16GB and I've never seen that, so I don't fully trust the summary to start with.
What I'm really asking is, am I doing my M8 any favors by using app settings that blacken as much as possible to save battery on AMOLED screens? In theory it sounds like it would work. But it seldom looks as good as other themes. And frankly, with a decent ROM/Kernel combination, this battery can pull two days, so, why not, you know? Still, I'm wondering if there's a benefit at all.
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It's a super lcd screen.
32 gb phone is the only one available through Verizon. The 16 gb model is the base model for the international version. It definitely exists.
You can't get the screen as dark as an amoled screen and running dark themed apps won't save a significant amount of power compared to light themed apps. All you can do to save power display wise is to lower the brightness.
If you're S-OFF you can enable normal power saver which you can run all day and it not limit you to a few things like extreme power saver does.
If you've ever used a phone with an AMOLED display, it should be immediately apparent that the M8 doesn't have one. This is probably the nicest LCD I've used, but the saturation and contrast still can't compare to AMOLED. An LCD will use the same amount of power regardless of what it's displaying.
I never saw an Android device with a burned in screen until I had to borrow an SGS3 right before I got my M8. I'm an LCD fan these days. I'll take more honest colors over contrast. It's easier on my eyes. The only HTC I know of that came with an AMOLED was the original Incredible, and even then only for the first year or so. After that they began using Sony SuperLCD screens, of which the M8 has the 3rd generation of that screen.