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Hi all,
After reading this, especially this part:
"Suggestions for Google:
1. Eliminate the primitive 16-bit display interface and fix the Browser, Gallery and other applications.
2. The White Point is too blue, lower it to D6500, which will improve color accuracy, slow the aging of the Blue OLED, reduce power consumption, and improve battery run time.
3. Improve the factory display calibration to correct the large color and gray-scale tracking errors and the irregular and non-standard display contrast and Gamma.
4. The color saturation of the display is way too high. You can trade this excess color saturation to boost the screen brightness by adjusting the software color calibration matrices. This will also improve the color accuracy of the display.
5. Take full advantage of the OLED display: the ambient light sensor now just controls the screen brightness. You should also use it to control the gamma, color gamut, color saturation, and edge enhancement so that in low ambient light the display delivers beautiful and accurate image and picture quality, but as the ambient light increases slowly turn up these parameters to counter-balance the washed out appearance of the images in bright ambient light. Also add a display Vivid or Pizzazz control because some people prefer punchy images and pictures, while other people do not.
Nexus One Conclusion: The Nexus One Display Looks Like a Prototype
The Nexus One OLED display has many spectacular qualities, but it is also loaded with lots of rough edges, hasty unfinished beta display drivers and Android software including principal applications like the Browser and Gallery, poorly implemented image processing, poor system integration together with sub-standard factory display calibration. It really looks and behaves like a prototype for a very nice future display, not a finished production display for a world class mobile device that Google markets it to be. It will be interesting to see the degree to which existing units will be corrected and improved with software updates."
My toughts are: could it be possible to tweak video drivers, or at least modify gallery and browser apks to achieve a better viewing quality?
Someone give this man a beer I couldn't have said that better myself.
Sent from my Nexus One using XDA App
+1000
Any devs watching this?
Wow...even more improvement possibilities! Modding this phone seems endless!
Yeah, I seriously believe we could improve display performance with some tweaks. I noticed that on the iphones 2g,3g,3gs and 4g, the screen kept changing color and it really did make a difference. Like the 3g screen seemed a bit yellow and 3gs was more natural and they kept on improving.
I would like to hear some dev's opinion because I think it's pretty hard to modify video drivers, as we are seeing in the "porting video drivers" thread...so I'm not too optimist...but let's see what happens
Sent from my Nexus One using XDA App
As a pro video calibrator I would LOVE to have an app that allows me to change the RGB levels so I can set the grayscale.
I will watch this thread with great interest. Here is to hope.
I think the start is with the rendering tweaks that is being used in cm6. Where that is, I have no clue on the technical specifications..... Sorry.
How many of the issues are hardware related though? They're certainly not going to be updating those.
I'm pretty sure I read that article a few months ago, Google appear to be quite reluctant to do anything specific to the N1 and prefer to just keep trucking along with the generic AOSP development. If anything that can be done is going to happen, it'll be due to the clever developers on this and other forums.
The N1 display looks like it's permanently in store-presentation mode, very sharp and contrasty, unfortunately it's not very realistic. If changes can be made in software to improve things, that'd be great, but I doubt it'll be Google doing it.
grayscale
Would it be possible to have a setting to make the entire display grayscale instead of color? If so, would this then allow us to punch up the brightness past it's default levels? Battery life is not my concern. Seeing my screen in the bright sun is though
Alright, I checked it out using the patch that enables nightvision mode in later CM builds, a calibration profile can most likely be done. I'll get my colorimeter tomorrow and use changing linear transformations to turn one of the modes into a calibrated profile. It's up to Cyanogen whether or not it should be added "officially," but I can just overwrite salmon or something and post an update.zip in the meantime if I can get it to work.
Lowering the contrast (and calibrating for that matter) will lower the total colors that can be rendered, so you'd have to keep that in mind. I'm not sure if the screen is 16 bit minimum (at the lowest brightness and thus the more detail the brighter it is) or 16 bit maximum (at highest brightness) as darkening the "backlight" would just narrow the gamut on the device, anyone know? The gamut may already be too narrow to justify a LUT, but I'll see soon.
From what I know, the system is capable of 24bit color, but only 16 bit native. You see, OLED displays have really high refresh rates, so they show the color above and below the target in the right ratios to trick the eye. I don't think the system does these calculations when it expects the screen to move, too high a load, and that's why tapping on the screen in the browser changes colors. This is probably just the application using the wrong settings with regards to it.
The pentile matrix can show fonts really nicely if it has the right font hinting. I've heard that it doesn't, however. I'm not sure where you'd find the best place to go about that, but it's probably out of the kernel and thus outside of my knowledge..
Edit: heavily edited for cleanliness and new knowledge.
Great contribution Storm...do you think we can correct issues noticed in FIGURE 1 (nexus vs iphone comparison) ? It would be AWESOME ...
Maybe should I open a similar thread on cyanogenmod?
knightnz said:
How many of the issues are hardware related though? They're certainly not going to be updating those.
I'm pretty sure I read that article a few months ago, Google appear to be quite reluctant to do anything specific to the N1 and prefer to just keep trucking along with the generic AOSP development. If anything that can be done is going to happen, it'll be due to the clever developers on this and other forums.
The N1 display looks like it's permanently in store-presentation mode, very sharp and contrasty, unfortunately it's not very realistic. If changes can be made in software to improve things, that'd be great, but I doubt it'll be Google doing it.
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Click to collapse
we all doubt it...that's why we're unlocking FM radio and add 720p recording...N1 could really have been the iphone killer if Google did the job ENTIRELY...but really seems that N1 is an unfinished prototype, combine this with huge errors (no marketing and online-only distribution) and you have a partial failure, I know it's sad to say...
Still love my N1!
Well, it looks like the calibration profile is going to be [1, .98, .69] [R,G,B] or thereabouts. Can anyone test the temperature with their own calibrator? I'm getting 9300K when we want 6500K, the website noted earlier got 8900K. I'd like a few more test results but I can work with just my own.
I'm going to edit the files and try it out on my phone here soon enough. I can, if I can modify by-pixel colors, calibrate it to a 2.2 gamma, which would lower battery usage and the overly contrasty and cartoony colors significantly. It'll take a while though if it's even possible.
Anyone know any good apps that just show a specified RGB value across most or all the screen?
Edit: Alright, there are two calibration profiles, one for the lowest brightness, one for the highest. The values I'm getting (for the code junkies) are [1, green, .82] for bright screens, and [1, green, .80] for dark screens. The problem is that the level of green is pretty subjective. I can't measure it without doing extensive calculations, but comparing it to my calibrated monitor, .98 or .99 seems good. 1.00 should be ok, as .98 will add banding.
I'll upload the libsurfaceflinger.so with the modified profile for people to test in another thread (to be linked once I make it here)
storm99999 said:
Well, it looks like the calibration profile is going to be [1, .98, .69] [R,G,B] or thereabouts. Can anyone test the temperature with their own calibrator? I'm getting 9300K when we want 6500K, the website noted earlier got 8900K. I'd like a few more test results but I can work with just my own.
I'm going to edit the files and try it out on my phone here soon enough. I can, if I can modify by-pixel colors, calibrate it to a 2.2 gamma, which would lower battery usage and the overly contrasty and cartoony colors significantly. It'll take a while though if it's even possible.
Anyone know any good apps that just show a specified RGB value across most or all the screen?
Edit: Alright, there are two calibration profiles, one for the lowest brightness, one for the highest. The values I'm getting (for the code junkies) are [1, green, .82] for bright screens, and [1, green, .80] for dark screens. The problem is that the level of green is pretty subjective. I can't measure it without doing extensive calculations, but comparing it to my calibrated monitor, .98 or .99 seems good. 1.00 should be ok, as .98 will add banding.
I'll upload the libsurfaceflinger.so with the modified profile for people to test in another thread (to be linked once I make it here)
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Click to collapse
This is awesome! I will certainly test tonight with my X-rite i1 Pro meter. Just curious, where are you getting the IRE images from?
wrinklefree said:
This is awesome! I will certainly test tonight with my X-rite i1 Pro meter. Just curious, where are you getting the IRE images from?
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Click to collapse
As of now, I don't have IRE images. I just calibrated the white point, and even then, kinda inprecisely. Your data and inputs are valued, but I can't do anything more than a linear equation on the pixels. Currently, I keep red as it is, multiply green by .98, and multiply blue by .82 . It's not accurate, but it's close, and it uses less power. The gamma is still skewed to hell though.
Please look at this post, maybe this has something to do with anything relevant to the ideas presented in this post?
http://forum.xda-developers.com/showthread.php?t=745248
Seems like a good idea
ywindlass said:
Please look at this post, maybe this has something to do with anything relevant to the ideas presented in this post?
http://forum.xda-developers.com/showthread.php?t=745248
Seems like a good idea
Click to expand...
Click to collapse
Of course it's relevant, this thread gave me the idea for that. A few posts up is me debating whether or not it would work.
I was just standing outiside and noticed that I couldn't read the screen of my new Galaxy S2 which I never noticed on my Nexus S. So I compared the two in direct sunlight.
Isn't the sAMOLED+ supposed to be brighter than the original sAMOLED screen?
Is my screen less bright than other sAMOLED+ screens?
My Galaxy S 2 is definatly brighter in sunlight than my Nexus S.
although i have turned off my auto brightness and whacked it right up on both..
At brightness zero the nexus s is brighter than the galaxy s 2.
I noticed that in bright sunlight, I can't see the screen at all on my SGSG2 with it set to zero, which causes a bit of a problem upping the brightness! On the Nexus, I could see well enough to change it.
I think at full brightness though, the SGS2 is brighter. My retinas haven't recovered from accidentally setting 100% whilst reading at night.
I've been wondering whether there is a way to boost the brightness, I was going to make a topic about it.
Some reviews I've seen say they had to turn the screen down to lowest brightness as the screen is so bright, etc. however my screen is nothing special in terms of brightness really and I have it on full, with auto adjust off colours are good though.
jodeltje said:
I was just standing outiside and noticed that I couldn't read the screen of my new Galaxy S2 which I never noticed on my Nexus S. So I compared the two in direct sunlight.
Isn't the sAMOLED+ supposed to be brighter than the original sAMOLED screen?
Is my screen less bright than other sAMOLED+ screens?
Click to expand...
Click to collapse
Yes, disable auto brightness maybe
jonny_ftm said:
Yes, disable auto brightness maybe
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Click to collapse
yes, I did that. the pictures are taken with both screens on 100%
I guess my screen is just not as bright as others :/
Also, under Settings -> Display, make sure that "Auto Adjust Screen power" is disabled... this option tries to save some battery by lowering the brightness when the image displayed is brighter : It can be useful in movies but it's just useless and annoying when you're browsing or reading.
PS : And SuperAMOLED+ is not supposed to be brighter than sAMOLED, it's the same without the pentile matrix. When samsung announced an improvement in battery life and brightness they were still comparing it to LCD screens from a few years ago.
thanks bluescreenjunkie, that setting actually helped (a bit).
and yes, your probably right about samsungs claims as well, I probably subconsciously interpreted samsungs claims the best way possible ... (so I had a reason to go buy it).
thanks for your input.
well it is possible to increase the brightness but it takes some development, like supercurrio did for the 2.3.3 kernel for the nexus s and cm7 sgs1 kernel with the voodoo app.
Dont know if hes gonna do the same for the sgs2, i really like it on my sgs1 for sure.
he increased the brightness? well that explaines it then (as it's running a voodoo kernel) .
Hi,
Concerned that the SIII's max brightness is much dimmer than competing phones. Iphone 4, 4s, HTC One x, are all about 500 nits.
The SIII's is only around 330.
Is this an issue?
I do like bright screens, and I suspect that the dominant reason for the battery life being better on the SIII is simply that the screen isn't as bright.
Thanks
lamenramen said:
Hi,
Concerned that the SIII's max brightness is much dimmer than competing phones. Iphone 4, 4s, HTC One x, are all about 500 nits.
The SIII's is only around 330.
Is this an issue?
I do like bright screens, and I suspect that the dominant reason for the battery life being better on the SIII is simply that the screen isn't as bright.
Thanks
Click to expand...
Click to collapse
Yes, the colour contrast makes the phone brighter than original, due to the Amoled screen. You won't really notice a difference unless you compare them side by side in a dark room.
Man i can't look at the screen at full brightness it's too bright and only use when outside in sun. Normally keep it half or slightly more. However i found auto to be not too effective as it makes screen too dim.
sak500 said:
Man i can't look at the screen at full brightness it's too bright and only use when outside in sun. Normally keep it half or slightly more. However i found auto to be not too effective as it makes screen too dim.
Click to expand...
Click to collapse
With CM/AOKP you can change the auto values so its not too dim
Keep it Classy, Cali.
CoNsPiRiSiZe said:
With CM/AOKP you can change the auto values so its not too dim
Keep it Classy, Cali.
Click to expand...
Click to collapse
Really? I use cm. How can I change that?
I think so.
I looked at a report that the S3 actually has a lower screen brightness then the S1!
"The Galaxy S3 uses a 1280 X 720, PenTile AMOLED screen, which is higher resolution, but dimmer than the Galaxy S1 and Galaxy S2 screens, Soneira said. The culprit seems to be power management: in trying to get decent battery life with its huge 4.8-inch display, Samsung had to turn the brightness down.
Power consumption figures bear that out. Samsung cut maximum display power from 2.1 watts on the Galaxy S2 to 1.3 watts on the Galaxy S3, dropping maximum brightness from 289 candelas per square meter to 224. The lower power usage, however, lets the S3 get solid battery life even with the larger screen: running time with the display on increased from 4.4 hours on the Galaxy S2 to 5.6 hours on the S3."
Qoute from a website ^
is there anyway to actually make the screen more visable? Like brighter? Its really annoying have this great phone and My older, LG 2X P990 has a brighter screen!
Thanks guys! Jack -
While I can't help you make it brighter, it's probably worth considering that display lifetime is probably also an important trade-off made by Samsung.
Even at the existing brightness, there are already some people complaining about display "burn-in" etc.
I would predict that any further increase in brightness would greatly increase the problems of burn-in and wear-out.
(Reason being that perception of brightness isn't linear, i.e. doubling the display power wouldn't make it look anywhere near twice as bright, yet would cause a dramatic increase in pixel fatigue and reduction in life)
fasty said:
While I can't help you make it brighter, it's probably worth considering that display lifetime is probably also an important trade-off made by Samsung.
Even at the existing brightness, there are already some people complaining about display "burn-in" etc.
I would predict that any further increase in brightness would greatly increase the problems of burn-in and wear-out.
(Reason being that perception of brightness isn't linear, i.e. doubling the display power wouldn't make it look anywhere near twice as bright, yet would cause a dramatic increase in pixel fatigue and reduction in life)
Click to expand...
Click to collapse
Ah i see :/ its just annoying having a phone not as bright as my older phone... ahh well :/
This may help
http://forum.xda-developers.com/showthread.php?t=1791163
JackHanAnLG said:
I think so.
I looked at a report that the S3 actually has a lower screen brightness then the S1! ....
is there anyway to actually make the screen more visable? Like brighter? Its really annoying have this great phone and My older, LG 2X P990 has a brighter screen!
Thanks guys! Jack -
Click to expand...
Click to collapse
What is really annoying, it is the hypochondria of the users. They are buying phone, they are happy with it, but then, they have the REPORT.
It may state that S3 is slower than nokia 1100 (if dropped out from a jet plane because S3 is more flat and will glide).
It may state that S2 is fir with tiny screen compared to iSomething (to iPad, to be precise).
Not to mention that it may state that the battery is crappy compared to the Han Solo's communicator he used in Star Wars.
Jack, please take my advice:
first, sell your crappy S3.
secondly, please READ the reports, DIGG forums, and please: choose the phone which will make you happy.
last but not least: BUY only this device which you'll want, do NOT listen to your mum.
Well, outdoors, especially in bright sunlight, the GS3 screen is in deed too dim.
Maximum brightness is around 330 cd which is far less than the best LCDs offer these days. Those LCDs are bordering on 600 cd which is a massive advantage. Due to this, my next phone will one sporting a top-notch LCD. AMOLED has fallen behind the curve IMO.
spamtrash said:
What is really annoying, it is the hypochondria of the users. They are buying phone, they are happy with it, but then, they have the REPORT.
It may state that S3 is slower than nokia 1100 (if dropped out from a jet plane because S3 is more flat and will glide).
It may state that S2 is fir with tiny screen compared to iSomething (to iPad, to be precise).
Not to mention that it may state that the battery is crappy compared to the Han Solo's communicator he used in Star Wars.
Jack, please take my advice:
first, sell your crappy S3.
secondly, please READ the reports, DIGG forums, and please: choose the phone which will make you happy.
last but not least: BUY only this device which you'll want, do NOT listen to your mum.
Click to expand...
Click to collapse
I wouldnt say it was crappy, i like it, its a beast, its just not as bright as i want it
Darkside Agent said:
This may help
http://forum.xda-developers.com/showthread.php?t=1791163
Click to expand...
Click to collapse
Thanks ill have a look right now!
JackHanAnLG said:
Thanks ill have a look right now!
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Click to collapse
On maximum brightness the screen is more than enough really..
Just turn auto off and enjoy lovely colors, actual blacks and good brightness.
vkone said:
Well, outdoors, especially in bright sunlight, the GS3 screen is in deed too dim.
Maximum brightness is around 330 cd which is far less than the best LCDs offer these days. Those LCDs are bordering on 600 cd which is a massive advantage. Due to this, my next phone will one sporting a top-notch LCD. AMOLED has fallen behind the curve IMO.
Click to expand...
Click to collapse
OLED doesn't need 600 nits of brightness. In fact, I don't even think that OLED should be measured that way because LCD's use a backlight which means it will win any brightness test easily. Just look at this picture for example.
http://www.google.ca/imgres?imgurl=...q55UP-BG4GsiALEw4CgBA&ved=0CDMQ9QEwBg&dur=208
It shows that AMOLED can produce the same brightness as an LCD measuring about 100 less candela.
brand new S3 t999l here, perfect indoors, unusable in sunlight or overcast. For indoors use only, if no mod or fix to make the display brighter.
Hey guys I was thinking of upgrading the the galaxy s5, but specification wise, is it the same max brightness as the S3 ??
I mean, I really have a problem in the s3 being too dim even at maximum brightness when outdoors in the sun, so is the S5 specification wise, have the same max brightness as the s3 and face this problem?
You don't want to give your significant other yet another reason to yell at you while you're reading XDA in bed. Rate this thread to express what you think of the LG G6's display minimum dimness. A higher rating indicates that the display can get extremely dim, ideal for reading in very dark environments.
Then, drop a comment if you have anything to add!
It could be a tad darker, but if you use the "Comfort view" setting in notification menu, you can turn down blue light which works just as well. This setting is highly customizable.
To me, this is the weak point of the screen. It will get acceptably dim, though, if you activate both battery saver and comfort view, but who wants to go through those steps each time you want to read at night? I've just been using one of the night shift apps to dim the screen during night hours.
Anyone notice the auto brightness toggle not sticking? AT&T model.
mhill1986 said:
To me, this is the weak point of the screen. It will get acceptably dim, though, if you activate both battery saver and comfort view, but who wants to go through those steps each time you want to read at night? I've just been using one of the night shift apps to dim the screen during night hours.
Click to expand...
Click to collapse
Thanks for the tip, this combo does make the screen acceptably dark enough.
Has anyone had any luck with automating lg's settings? I have not been successful with Tasker and would really like to schedule this based on time and ambient light sensor.
Lux
Sent from my LG-H872 using Tapatalk
min brightness could be darker.
max should be brighter
maruichan said:
It could be a tad darker, but if you use the "Comfort view" setting in notification menu, you can turn down blue light which works just as well. This setting is highly customizable.
Click to expand...
Click to collapse
I personally didn't think the yellow tint that Comfort View offers helped me. Instead, I used System UI tuner (This app: https://play.google.com/store/apps/details?id=com.zacharee1.systemuituner&hl=en) to enable the stock android night mode. If you want to try it, it essentially works the same but the tint is more red-ish and is more tolerable in my opinion. However, the intensity of the tint can't be adjusted.
Anyways, I do agree with you that the display should get a bit darker.
Coming from a GS4, the minimum brightness is amazing, especially if you use it combined with the battery saver option, it never seemed too bright, whilst on my S4, i often used the screen filter app to lower minimum brightness