Database Users

Display: SuperAmoled Plus vs NOVA (LG)

This is a little test that I've made with Optimus Black and Samsung Galaxy S II
Hope you like it
http://en.androidworld.it/2011/05/2...oled-plus-samsung-galaxy-s-ii-our-comparison/

Seems to me like you forgot to change the browser brightness?
Sent from my GT-I9100 using XDA Premium App

MaBlo said:
Seems to me like you forgot to change the browser brightness?
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
YUP 100% the browser brightness is very low hence why its darker lol

yup, either browser brightness is low or you enabled "auto power savings" in display which displays darker whites to save energy...either way my whites are proper white even on low brightness so you must be doing something wrong in your test.

That, or the camera under exposed the amoled screen because of the brightness of the nova display. Keep in mind that good LCD screens like Retina display or the blackberry ones are about twice as bright as a super AMOLED screen, so the Nova display might be even better than that (but on the other hand the blacks are infinitely darker on amoled, which makes the contrast ratio infinitely better).

sorry but that looked so biased towards the optimus in the last 2 tests, if you had the SGSII at full brightness in the web browser test it clearly would of won by miles. Aswell as in the sun light test.
Edit: I retract most of that to make it in all of the tests xD.
In most of the pictures the LG Nova screen has very washed out colours especially the first one. Samsung Galaxy S II also hasn't been put on full brightness for this as the other phone obviously has. If you were trying to get away with thinking your LG Optimus Black screen was better than Super Amoled Plus then you've failed.

I set the same (maximum) brightness
It's how BlueScreenJunky said. I tried to set the brightness setting also on the camera but the result was the same

cisoprogressivo said:
I set the same (maximum) brightness
It's how BlueScreenJunky said. I tried to set the brightness setting also on the camera but the result was the same
Click to expand...
Click to collapse
I really don't want to have to take pictures in all seperate conditions to show you what a real SGS II on 100% brightness looks like. -.-

cisoprogressivo said:
I set the same (maximum) brightness
It's how BlueScreenJunky said. I tried to set the brightness setting also on the camera but the result was the same
Click to expand...
Click to collapse
what he meant was that there is a second setting related to power that affects screen brightness
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I don't care if the NOVA screen can wash dishes, it still comes attached to an LG phone. After my experience with the G2X and reading the O2X boards, I can't believe people are still buying LG high-end phones. LG should stick to TVs.

cisoprogressivo said:
I set the same (maximum) brightness
It's how BlueScreenJunky said. I tried to set the brightness setting also on the camera but the result was the same
Click to expand...
Click to collapse
did u check that the browser brightness is set to maximum as well? Hmm I just turned mine up all the way and the whites were so bright I thought the rapture was happening after all!

Pictures don't mean a thing unless they're taken with the same camera and the same manual settings? here are 3 pictures of my SGS2 at 100% brightness with the same camera, same shutter speed (1/400 sec), same iso (400 iso), I only changed the aperture (f/1.8, f/2 and f/8):
Doesn't look that bright to me in the last picture...

Green tint

Do you have the problem that your screen has a slightly green tint?
It is possible to get rid of it by using apps like "filter your screen" (just add more red and even more blue). But there's no comparison to tools like voodoo color (v1 and gamma correction) on a galaxy nexus/s.
"Filter your screen" biggest problem is that it kills the good black level performance on an oled, contrast is lowered too much for my taste...
Do you guys know some better alternatives (even with enabled root or other hacks)?

http://forum.xda-developers.com/showthread.php?t=1983345
Hope, someone could adress this

Don't get me wrong. But I hate the screen!
This is what my screen looks like (compared to a calibrated TFT...
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I dont have that problem

bhasg1007 said:
I dont have that problem
Click to expand...
Click to collapse
It's a screen problem, not caused by the software. But it is possible to get rid of it porting a kernel module called "ColorControl" which was used in many Galaxy Nexus' custom kernels.

Yes during my Galaxy S days i used to have vodoo colour which used to make the screen look amazing, waiting for supercurio or anyother developer to port the option to galaxy note2

bhasg1007 said:
Yes during my Galaxy S days i used to have vodoo colour which used to make the screen look amazing, waiting for supercurio or anyother developer to port the option to galaxy note2
Click to expand...
Click to collapse
So you have the same problem?
As far as I know ColorControl is just a port of voodoo color from the Galaxy S1. So it should be possible to port it to the Galaxy Note 2 as well. Otherwise I'm going to return this nice device with that sh***y display. I will never buy a smartphone with an amoled display again!

Bad luck that you have got a faulty screen

bhasg1007 said:
Bad luck that you have got a faulty screen
Click to expand...
Click to collapse
Yesterday I went to a store here in Germany, and the Note 2 there had the same color cast.
I really like the Note 2 but I hate its display. This is embarrassing for Samsung!

Exchange your device.

Looks like this is screen problem, I have perfect white color. Try to test it from *#0*# menu (type this combination at phone app)

Got my replacement today: Gues what?! Exactly the same...
At least the build quality is much better.

I've noticed the same green tint that kind of goes away the brighter the phone gets. My eyes adjust after a few minutes though and I can't really see it. I would really like to get a colortemp/hue adjuster though.

Too bad you guys got faulty screens, as i have slight blue tint on my screen but i absolutely love this! I had One X 6 months and i would never want to change this display to that on One X, this is the best display i've ever seen. I guess it's just me then...
Sent from my GT-N7100 using xda premium

Mine only shows tints at different angles
Sent from my GT-I9300 using Tapatalk 2

supercurio said:
Exchange your device.
Click to expand...
Click to collapse
I always smile when I see you.
The phone is bad with out your touch

I think the color calibration is totally off on this phone. They chose to calibrate it this way, and it is out of my hands so it doesn't bother me because I love the device. Videos look great when I want to watch them.
Color is all relative because you cannot choose the color of the ambient light around you, so you are never seeing the pure color unless you are in a controlled environment. So why get hung up about how inaccurate the color looks on something in comparison to something else that's not bouncing the true color you're looking for?

[Q] Lowering actual panel brightness (below minimum)

Hey guys,
I've searched these forums quite thoroughly, and I haven't found any kernels/ROMs that allow for the display brightness to go past its minimum brightness settings. If you've had an iPhone, you'll know that the iPhone's minimum brightness is so much lower than the Nexus 4's. It makes using it at night so much easier on the eyes.
In all the threads I've come across, people just suggest to use Lux, or any of the other apps that just put a filter over the screen. These just make the screen grey, and just mute the colours - they don't actually reduce the brightness past 0.
I know that lowering the minimum brightness is possible; at least it is on other devices. On the Nexus 7, M-Kernel has a file that you can edit to change the panel's minimum brightness, and on my old Xperia Play, the RootDim app [https://play.google.com/store/apps/details?id=mobi.pruss.superdim&hl=en] allowed lowering the panel's brightness.
So, has anyone come across any kernels/ROMs that actually allow reducing of the panel's brightness past 0?
Oh, and I emailed the guy who made the RootDim app, and he mentioned something about pwm drivers. Does anyone know more about that?
Thanks!

I think I was able to do this on my old phone (HTC Wildfire) using Cyanogen. But no guarantees. Also, no idea if that is still supported or works on the N4...

If it's purely about using it at night I would recommend Screen Filter. I prefer not to mess with forcing my screen to use values outside the tried and tested boundaries set by the manufacturer.
Sent from my Nexus 4 using Tapatalk 4

For what it's worth, the "lowest" brightness by default is 5%. CM lets you adjust this down to "0%" but it seems autobrightness is a little buggy.
edit: nevermind. The range for autobrightness is 5-100 by default. When manually setting brightness, I believe "0" is possible on stock? I agree there are times a dimmer setting would do. Changing gamma settings can get you deeper colors and result in a dimmer looking display. Opposite of the graying you're referring to.

thank me later
https://play.google.com/store/apps/details?id=com.haxor

K3lthuzad said:
...or any of the other apps that just put a filter over the screen. These just make the screen grey, and just mute the colours - they don't actually reduce the brightness past 0...
Click to expand...
Click to collapse
bodom_hc said:
thank me later
https://play.google.com/store/apps/details?id=com.haxor
Click to expand...
Click to collapse
or never

I'm wondering about this too, in bed at night the screen is too bright on the eyes which makes the reading time much less,
on amoled screens its great due to no backlight which doesn't make the eyes tired,
there must be a way to reduce the backlight, but it may make the backlight flicker if undervolted, which would be worse on the eyes

republicano said:
I'm wondering about this too, in bed at night the screen is too bright on the eyes which makes the reading time much less,
on amoled screens its great due to no backlight which doesn't make the eyes tired,
there must be a way to reduce the backlight, but it may make the backlight flicker if undervolted, which would be worse on the eyes
Click to expand...
Click to collapse
Have you tried playing with the gamma settings and dropping the brightness down to 0 manually (autobrightness only goes down to 5%).
Halfbreed is pretty decent and results in a "dimmer" display without washing/graying everything. Only problem is under daylight, it's not effectively as bright.

I'll try messing with the brightness and gamma settings. It's a shame there isn't a better alternative right now.
Maybe, in the future, a developer makes a kernel with this built in (if possible). Fingers crossed! :/

For what it's worth, I think you'll find 0% brightness and halfbreed to be exactly what you're looking for.

Download twilight and try it. It has an option to lower the screen brightness further...
Sent from my Nexus 7 using xda app-developers app

Bumping my own thread:
I talked to the Nexus 7 (2012) kernel dev who managed to lower the panel minimum brightness, and he pointed me toward this:
https://github.com/CyanogenMod/lge-...ch/arm/mach-msm/lge/mako/board-mako-display.c
I'm hoping a Nexus 4 kernel dev will see this (or someone who knows what to do with it). He said it might be possible to do on our displays. Also, go check out M-Kernel if you still have a 2012 Nexus 7.

So, we just need to chance it and compile the kernel?
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Sent from my Nexus 4

We can try. I just don't know how to 1. Change it and 2. Compile a kernel LOL

I will try to do it, will post here if it works
Sent from my Nexus 4

Screen lacks color accuracy

Just bought a LG G Pad 8.3 a few days ago after reading the many positive reviews online.
Was especially looking forward to the supposedly high quality screen with excellent color accuracy, as it is also marketed by LG.
So it is with disappointment to discover that my unit does not exhibit these qualities.
The screen on mine has a low color accuracy, especially with reds.
Red colors deviate quite a lot and look almost orange. This results in a poor viewing experience and was not what i expected. Most review videos and photos i have watched does not show this color imprecision.
I suppose i am not the only one with a screen looking like this.
It seems like the screen has not been calibrated properly from the factory.
I feel that i have gotten an inferior product and questions if this is general quality problem with the tablet?
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A lot of us have a yellowish screen (including me), I personally fixed it using Screen Adjuster, then the CM 11 built in color adjuster. You can try the color correcting methods I mentioned or use your warranty for a replacement.
Sent from my iPhone using Tapatalk

I don't really consider my screen as being "yellowish". The whites displayed are pretty neutral i think.
I already tried Screen Adjuster as you suggested, but i have not been able to get any improvement with it. Rooting is not something i want to do for now.
I suspect that LG is sourcing different LCD panels for this device, and that they are not all of equal quality or calibrated to the same standard.
The early production units, among those sent to reviewers, seems to have screens of higher quality with more accurate colours.
Mine is a 402 production.

With the replaced display I also noticed orange-ish red. The white is white, black is black, no lightbleed or yellow-ish screen. I compared some pics on a professional Dell U2412M IPS monitor and the red was really horrible orange-ish on G Pad.

Zarrick19 said:
With the replaced display I also noticed orange-ish red. The white is white, black is black, no lightbleed or yellow-ish screen. I compared some pics on a professional Dell U2412M IPS monitor and the red was really horrible orange-ish on G Pad.
Click to expand...
Click to collapse
Thank you for sharing your experiences. Please cast a vote in the poll.
Could you perhaps show a photo of your screen?
I think that LG at some point changed the IPS panel used in G Pad 8.3 for a different one. After all of the problems reported with the early productions this would seem appropriate.
It seems, though, that the color calibration of the panels have gone wrong in the process.
It's regrettable, as i otherwise like the aspects of the tablet. I guess i will just have to live with it or buy something else.

I think that the major problem is the gamma curve setting. If you can and know how to, try the kernel posted in the Android development section, which has improved (normal) gamma, although it has possibly some other minor issues unrelated to the display, but nothing unrecoverable - you can flash back to stock kernel easily.
I am currently running with it so you can rest assured that the tablet is not going to die, or something
P.S. Maybe I spoke too soon - had to revert back to the stock kernel because I got apps crashing and also some spontaneous system reboots with the suggested kernel, probably due to the additional tweaks in it, apart from the gamma tweak.

Zarrick19 said:
With the replaced display I also noticed orange-ish red. The white is white, black is black, no lightbleed or yellow-ish screen. I compared some pics on a professional Dell U2412M IPS monitor and the red was really horrible orange-ish on G Pad.
Click to expand...
Click to collapse
Although I do not have any orange issues, it is true the colors are not perfect, but nor are they bad, at least on mine. My monitors are all color-calibrated and I too have made comparisons. You can use Trickster Mod to adjust the colors, but the gamma really requires the kernel of the ROM in my sig. Bear in mind that though Dell produces a nice monitor, if it is not specifically color-calibrated, then it too is not a reliable source.

[KCAL]Color Profiles for Pixel XL

This thread will encompass all of the color profiles used by various users of the Pixel XL. Feel free to share your own settings and recommendations here. I will link all profiles in the second post as users post them.

Profiles
XtraArrow: https://forum.xda-developers.com/showpost.php?p=70791467&postcount=3
Nitemare3219: https://forum.xda-developers.com/showpost.php?p=70805924&postcount=8
Kisakuku: https://forum.xda-developers.com/showpost.php?p=70811326&postcount=9
Alcolawl: https://forum.xda-developers.com/showpost.php?p=70823540&postcount=10

I always stay with "Cool" no matter what display, I can't stand the way warm looks. Here are mine.
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XtraArrow said:
I always stay with "Cool" no matter what display, I can't stand the way warm looks. Here are mine.View attachment 4022019
Click to expand...
Click to collapse
Is that your full profile? No changes to hue, saturation or contrast?

Well, I actually tweak red and green a lot to try find that sweet spot. I don't touch anything other than rgb scale although reducing saturation a little makes it look a little clean.

If anyone really experienced there have made a modification where the sRGB mode could even be improved with KCAL please do share. I like the sRGB mode as it is, but the whitepoint is far from being perfect and when you place it next to iP7 then it becomes more than clear. The default mode should be banished by the way, its the worst I have seen since them early Samsung AMOLED days.
Wish there was a profile which could place our phone near iPhone 7's accuracy/saturation/calibration.

ithehappy said:
If anyone really experienced there have made a modification where the sRGB mode could even be improved with KCAL please do share. I like the sRGB mode as it is, but the whitepoint is far from being perfect and when you place it next to iP7 then it becomes more than clear. The default mode should be banished by the way, its the worst I have seen since them early Samsung AMOLED days.
Wish there was a profile which could place our phone near iPhone 7's accuracy/saturation/calibration.
Click to expand...
Click to collapse
I am sure someone has a setting for this. Just need them to find the thread and reply.

250, 238, 256 is what I use.
You will never match the iPhone 7 display. It is calibrated, at the factory, per display. We can post settings all we want, but each display can look different than another. But sRGB on the Pixel XL has a definite green bias... this helps resolve it, at least in the white balance. With my Pixel XL next to my iPhone 7 Plus, the 7 Plus is still clearly more color accurate sometimes... and other times, they look pretty close. Just turn on sRGB, adjust the white balance to your liking, and leave it alone. That's the best you can do if you want color accuracy. We lack the granular control capability to do a proper calibration, even if you had the equipment, as far as I know.

Nitemare3219 said:
250, 238, 256 is what I use.
Click to expand...
Click to collapse
I use 246, 226, 256 to correct the green tint in sRGB mode.

Lets warm up.
I kind of miss the warmer hue my Nexus 5X had (It was, from a color accuracy standpoint, much more accurate too). The blue tint this screen has is a bit too much for my liking. After playing around for the last day or so I think I've found some settings that I like that reminds me of my N5X display.
I'm sure i'll be tweaking these slightly as time goes on, but I'm happy with what I've got so far:
Red: 235
Green: 247
Blue: 226
Saturation: 30
Value: 132
Contrast: 132
Hue: 0
sRGB: Off

?

Thank you for these profiles, they are good to test with, although every screen will be different coming from the factory. So tweaking might always be necessary.
Still, tweaking from a good base is way better than working from scratch.

Anyone using the default display mode with corrected green tint? What settings are you using?
I'm using 250, 235, 256 currently, through no delicate tweaking.

I don't like any yellowish, greenish profiles. Here are my profile, enjoy ?
Red 195
Green 178
Blue 215
Saturation 25
Value 129
Contrast 129
Hue 5
Sent from my Pixel XL using XDA-Developers Legacy app

How are you guys doing these changes? Found a thread and app on here but need kernel I guess but don't know which. I'm on elementalx.

jjayzx said:
How are you guys doing these changes? Found a thread and app on here but need kernel I guess but don't know which. I'm on elementalx.
Click to expand...
Click to collapse
I use ex kernal manager for tweaking elemental
Sent from my Pixel XL using Tapatalk

tatootie67 said:
I use ex kernal manager for tweaking elemental
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Click to collapse
Didn't know it was in there, guess I'll have to reinstall it. Thanks.

jjayzx said:
Didn't know it was in there, guess I'll have to reinstall it. Thanks.
Click to expand...
Click to collapse
You have to install it from the Play Store: https://play.google.com/store/apps/details?id=flar2.exkernelmanager&hl=en

Is there anyone who knows how to mess with the settings? All I'm interested in is to get the the white really accurate and white. Compared to my HTC 10 the pixel is a bit yellow. Cheers
Sent from my Pixel XL using Tapatalk

Blue305 said:
Is there anyone who knows how to mess with the settings? All I'm interested in is to get the the white really accurate and white. Compared to my HTC 10 the pixel is a bit yellow. Cheers.
Click to expand...
Click to collapse
Are you in sRGB mode? It should be more green, not yellow.