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AMOLED is more colorful than Super AMOLED!!!

Hi , I'm Sultan.
I have 2 devices : Samsung Galaxy S i9000 and Nexus One.
when i open the same application in these 2 devices , like Talking tom
i got that Nexus one screen is more colorful and better.
when u open white pages , you will see SAMOLED is little blue and AMOLED is White.
SAMOLED is changing original colors of any app or video.
is there any solution for this problem. Like changing the colors temp to standard.
I want to fix I9000 screen.
it's like when u change the LCD Screen temp of colors to cold.
Thanks , Sultan

Sultan.MA said:
Hi , I'm Sultan.
I have 2 devices : Samsung Galaxy S i9000 and Nexus One.
when i open the same application in these 2 devices , like Talking tom
i got that Nexus one screen is more colorful and better.
when u open white pages , you will see SAMOLED is little blue and AMOLED is White.
SAMOLED is changing original colors of any app or video.
is there any solution for this problem , I want to fix I9000 screen.
it's like when u change the temp of colors to cold.
Thanks , Sultan
Click to expand...
Click to collapse
In my experience the automatic brightness is quite "low" (weak), and when I want to see beautiful colors I usually go in the Display --> Brightness settings and instead of auto I put it at max, then the colors are more vibrant than in any screen I've seen.

SAMOLED at full blast is blinding powerful colour show man, yesterday i was playing around with some system tools and the damn App set the display to MAX i was left almost blinded
the colours were amazing! at full capacity, my 1080p 25" 10000:1 LCD pale compared to the SAMOLED

And what happens with battery drain when brightness is set to MAX?
Big impact? Low impact? In the middle?

I would say that colors that S-AMOLED outputs are way more vivid than AMOLED screens.
http://www.youtube.com/watch?v=y9Avy-Lwceg
PS
Although color temperature is different on the two phones.

Better colour temperature on the GS compared to Nexus/Desire, some may like the overly saturated look of the latter handsets however...

Guys , try to run talking tom app in both GS and Nexus one. And see who has better colors.
(( Is there any way to change colors temperature ? )).

Sultan.MA said:
Guys , try to run talking tom app in both GS and Nexus one. And see who has better colors.
(( Is there any way to change colors temperature ? )).
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Click to collapse
I think there is via stock video player but don't know if it changes the entire color of the interface.
There could be a difference in running 3D apps, probably in different drawing of textures, I really don't know...

Sultan.MA said:
Hi , I'm Sultan.
I have 2 devices : Samsung Galaxy S i9000 and Nexus One.
when i open the same application in these 2 devices , like Talking tom
i got that Nexus one screen is more colorful and better.
when u open white pages , you will see SAMOLED is little blue and AMOLED is White.
SAMOLED is changing original colors of any app or video.
Click to expand...
Click to collapse
Actually, the Nexus one (and HTC Desire) screen is over-saturated, with a STRONG tendancy to orange/red.
When you open a white screen, it's a dim white.
When watching media/movies, SAMOLED gives a LOT more vivid and true colors.
If anything, the Nexus screen is "changing" the colors of every app.

Sultan.MA said:
Guys , try to run talking tom app in both GS and Nexus one. And see who has better colors.
(( Is there any way to change colors temperature ? )).
Click to expand...
Click to collapse
I don't know about the amoled thing, but I liked that TALKING TOM App!!!
More App. tips?

galaxy s II display contrast

Hello.
Anyone else noticed that the display is lower quality than sgs ?
I mean in terms of gamma.
I am a photographer and I was amazed how good the contrast and brightness f the first galaxy was, however this one seems to have way too big contrast, making everythig that is dark much darker, giving a fake and strange appearence.
Also the auto brightness in general is lower than sgs.
Does somebody know if it can be tweaked through a kernel recompile, like sharpness and color in voodoo ?

Go to options-->display-->uncheck automatical screen power adjustme(don't know the exact english term, got it in dutch). I bet it is this again...
Let me know... you're not the first one.

No, it's not that but thanks
It's the actual gamma of the driver I think
However I did notice there is now a "background effects" that can adjust saturation and hue so there is access to the drivers. Maybe a bunch of new effects added there like "classic gamma, normal saturation..."

I came from the captivate, and ran just about every rom that was out there. One of the ubiquitous mods was the color fix. I noticed when I first booted the SGS2 up, the color was off (in relation to my expectations) sure enough in display settings there was an option to change it. Without looking I believe it's called "cinema", which perfectly returned that color richness I loved.
Sent from my GT-I9100 using XDA Premium App

there is something wrong with auto brightness , it doesnt work very well , but its not true that SGS 2 has a lower quality display than sgs , Super AMOLED Plus displays are an upgrade to Super AMOLED. They use a real-stripe subpixel matrix and not pentile - and so has 50% more sub-pixels. The PPI is a bit larger but Samsung will soon make them at much higher resolutions. Super AMOLED Plus displays are also thinner, brighter and use 18% less energy than the older Super AMOLED displays.

Possible Display Calibration Correction?

"Many of the images were noticeably washed out -- they looked like over exposed photographs with missing highlights, reduced image contrast, and weak colors," Soneira wrote.
But I was curious why these shortcomings weren't showing up in reviews -- and why Soneira seemed to be contradicting himself when he told me that the display itself was "high quality." So, I asked him to clarify this.
Here's what he said.
The LCD panel itself is excellent. Good luminance, high Contrast Ratio, excellent Color Gamut and Color Saturation. So the raw LCD display itself is great. The problem is that the factory calibration of the display parameters (generally performed via firmware) is way off (particularly the Intensity Scale) so the images that appear on this fine LCD display look washed out...the display produces washed out images and colors in spite of the fact that it has a display with excellent color saturation and contrast. Similarly, a great camera will take poor quality photos if it isn't properly factory calibrated.
He expands on particulars in the blog post.
There is about a 25 percent compression of bright image content, which is quite substantial. This holds for both the Gallery Viewer and the Chrome Browser. On some cheap displays this is done intentionally by the manufacturer because the compression actually makes them appear artificially bright. Here I think it's probably just incompetence by the manufacturer, which is too bad because they messed up a really nice display.

I also want to know about this. The contrast seems very low to me. This display can do better than what it's currently set at.

Wrong thread ?
Sent from my Nexus 7 using xda premium

I have some faith that when morfic makes a trinity kernel for the n7 that some of this will be rectified. Unfortunately, his order was held up. I guess the first step is to find out what code is tweak able in the kernel to actually do this.
Sent from my Galaxy Nexus using xda premium

I believe I saw a mod which corrected some of the Galaxy Nexus dislpay shortcomings by calibrating it a bit differently. I wonder if the same could be said for the Nexus 7. @piam, I don't know why the reviewers never mentioned this in their reviews, but that's the first thing I noticed when I opened up my Nexus 7, and that was on the stock wallpaper that was on.
I just hope that someone gets a mod out soon, cause its a really great tablet looking cheap just because of the washed out colours.

I find that the home screen is not well optimized but Netflix is looking pretty good. I also find that lowering the brightness helps...which does indicate a calibration issue.
Its pretty good already though...almost quibbling.
Sent from my Galaxy Nexus using xda premium

mike infinity said:
I find that the home screen is not well optimized but Netflix is looking pretty good. I also find that lowering the brightness helps...which does indicate a calibration issue.
Its pretty good already though...almost quibbling.
Sent from my Galaxy Nexus using xda premium
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Click to collapse
I've noticed while using YouTube as well. If play videos on my Galaxy Nexus side by side with my Nexus 7, the colors look washed out. Probably there will be a kernel fix.

christophermx4 said:
I've noticed while using YouTube as well. If play videos on my Galaxy Nexus side by side with my Nexus 7, the colors look washed out. Probably there will be a kernel fix.
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Click to collapse
Hopefully software can fix it, if it's a firmware problem.

Anybody knows about today status ?
We need official or not official update for our nexus 7 device!
Asus must give us possibilities for change white color compession!!!

christophermx4 said:
I've noticed while using YouTube as well. If play videos on my Galaxy Nexus side by side with my Nexus 7, the colors look washed out. Probably there will be a kernel fix.
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Well it would, the GN is oled which would make any lcd look rubbish
Sent from my Nexus 7 using xda premium

[Q] Colour Sharper

So i have a nexus 10 and my dad has an iPad 3rd gen. Now the thing is that from specs my screen is supposed to be better than his but then after comparing two same 720p playing videos it seems that the ipad 3rd gen gives more sharp colours than mine and was wondering whether there was a way to fix(without root) this as i remember my brother showing me on his S3 settings a way to change his screen settings to dynamic which makes colours look a lot more sharp and better looking though S3 has touchwiz and i have vanilla
Thanks

By sharp I assume you have to mean saturated. Colors look slightly better on the KTManta kernel, but we do not have any sort of color control at all and probably never will. There are a TON of posts on this matter so you should just go search them.

adnaan146 said:
So i have a nexus 10 and my dad has an iPad 3rd gen. Now the thing is that from specs my screen is supposed to be better than his but then after comparing two same 720p playing videos it seems that the ipad 3rd gen gives more sharp colours than mine and was wondering whether there was a way to fix(without root) this as i remember my brother showing me on his S3 settings a way to change his screen settings to dynamic which makes colours look a lot more sharp and better looking though S3 has touchwiz and i have vanilla
Thanks
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Click to collapse
You can tweak this through various apps and kernels, but there are different types of screens (Ex: Amoled, IPS) and they all produce colors differently.
Edit: I stand corrected...
Sent from my Nexus 4 using xda premium

speedygonzo said:
You can tweak this through various apps and kernels, but there are different types of screens (Ex: Amoled, IPS) and they all produce colors differently.
Sent from my Nexus 4 using xda premium
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Click to collapse
Sadly, not true with the nexus 10. No apps or kernels. Listen to Enigma.
Sent from my EVO using xda app-developers app

Dark video looks bad

Anyone else notice this? I took some pictures comparing my iPad Mini (left) vs Nexus 7 2013 (right). The first attachment is from YouTube F4bnVZmdOKs @ 5:31 - notice the splotchiness in the darkest areas. The second is from G-R8LGy-OVs @ 3:56 - notice the halos around the stars. When I watch on my computer (HP LP2065 IPS LCD) it looks much more like the iPad's display.

Looks like video compression blockiness that you don't see on the iPad because of the horrible black levels. If you look at a black still picture do you see the splotches?

Dimethyl said:
Anyone else notice this? I took some pictures comparing my iPad Mini (left) vs Nexus 7 2013 (right). The first attachment is from YouTube F4bnVZmdOKs @ 5:31 - notice the splotchiness in the darkest areas. The second is from G-R8LGy-OVs @ 3:56 - notice the halos around the stars. When I watch on my computer (HP LP2065 IPS LCD) it looks much more like the iPad's display.
Click to expand...
Click to collapse
I agree with the above poster, the splotchiness is video compression artifacts, and if you look past them, and take a step back, you'll actually see that you're getting much more detail and a better gamma on the N7 vs. the iPad. On the iPad side, the woman is completely black, yet on the N7, you can see her face and clothing detail that are simply missing on the iPad.
I would guess that the halos around the stars are similarly missing information on the iPad. With the N7, you're getting the whole picture.

That ipad mini picture is terrible. Talk about crushing blacks. ..... Look at the detail in the nexus picture. I hope your TV is not calibrated like the mini.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

I think its due to the high DPI. Try any HD video.

Actually the iPad Mini is quite terrible with the loss of dark details.

oh god that ipad looks awful dude.
Sent from my Nexus 7 using Tapatalk 4 Beta

there's probably a video player out there that supports gamma adjustment if it's not to your liking.in a specific video. it's hard to tell from that picture how black crushing the ipad is but some would find it looks "better" when the video is of poor quality. one thing you might want to do is adjust the backlight first (no need to do it global if you've got something like mx player) as the new N7 is supposed to be very bright. in the old n7 you can get away with making mx player always use max brightness because the maximum brightness isn't very high.

Good points. I attached a comparison of the black level test from Lagom. On the Nexus 7 I can see the 1 square easily. On the iPad Mini I can see the 5 square fairly well and the 4 just barely (IRL; hard to tell from the picture). The brightness setting for this and the previous comparisons was 25% on the Nexus 7 and around 55-60% on the iPad Mini. The subjective brightness was similar.

I borrowed an iPad 3 (Retina) to do some more testing. This time to eliminate any variables with video streaming I downloaded the 720P MP4s on my computer and captured stills with VLC. I used Chrome on both Android and iOS to view the images. Same videos as before, roughly the same scenes. The first 2 attachments show the comparisons: iPad 3 on the top, and Nexus 7 2013 on the bottom.
The 3rd attachment is the black level test on the iPad 3. I can clearly see square 2 and if I stare enough I can faintly detect square 1 (IRL; hard to tell from the picture again). The 4th attachment is a comparison of a full white image to show that the brightness is matched fairly closely (easier to tell if you convert to greyscale to ignore white balance differences) - 25% on the Nexus and just a hair above 50% on the iPad.
The 5th and 6th attachments are the source images I used for testing. I converted from PNG to JPG to make the attachments fit, not that it matters much since it's from a lossy source.
I still get the feeling that something isn't right about the way the Nexus looks. I was able to simulate the effect almost identically by applying gamma correction of 1.6 in IrfanView. That would seem to indicate that the Nexus's gamma may be way off, but after I finally found a way to view Lagom's gamma test image without scaling on the Nexus it looked pretty much spot-on correct. It it possible that only the very dark areas are "shifted" in a way that wouldn't affect the gamma test image?
This leads to the last attachment - a new black level test on the Nexus. Again, the brightness was calibrated similarly to the iPad, and the camera was set on full manual mode with all the same settings, so you can directly compare it to the iPad black level test image. Notice how the squares get brighter way faster than on the iPad? It's a lot more pronounced in the darkest squares, but the difference shrinks by the time you get up to the 40 square (last one before full white).

For my final test, I took pictures of Lagom's contrast test image on the Nexus 7 2013 and iPad 3. I then applied a Gaussian blur, converted to greyscale, and determined the RGB value for the first 13 bars. The first attachment is a chart of the results. The brightnesses converge around the 10th bar (RGB = 79 in the source image), but before that the Nexus's brightness is inflated. This explains why the gamma test looked fine, because even in the 10% luminance test, the RGB value of the ideal point is 88. The 2nd and 3rd attachments are the Nexus and iPad (respectively) displaying the test image.

you should bring all this to the "yellow tint" thread. this is a nice showcase on what's wrong with Nexus screen.

I recently purchased an X-Rite i1Display Pro display calibrator. I used it to make really accurate luminance measurements* of the Nexus 7 (2013) and iPad Mini while displaying shades of gray from 0 to 255 in steps of 5. I then calculated the effective gamma** at each step to create the attached chart. It also includes the effective gamma of the reverse sRGB transformation.
My conclusion is that the Nexus is fine if sRGB is the ideal target. I'm not sure what the ideal target is though; in fact, I don't really think there is one. A display gamma calibration of 2.2 to 2.4 seems like the most common recommendation. But almost everyone ignores the fact that sRGB's effective gamma is a lot lower in darker areas. I get the feeling that most people calibrate to a fixed target. sRGB is probably more technically correct. But if fixed 2.2 to 2.4 is more common, does that make it a de facto standard? E.g. if professional movie studios edit their movies on monitors calibrated to fixed gamma, but I watch it with sRGB gamma, doesn't that mean I'm not viewing it as intended by the creator? I'm not saying this is necessarily the case. I'm really, really confused .
So anyway, I just wanted to share my results. You will have to draw your own conclusions.
* I used spotread.exe from Argyll with the -x swtich. The first number from the "Yxy" result is luminance in cd/m^2.
** Effective gamma meaning: the gamma value you'd have to use to get the same luminance value from the input value. Formula is log(luminance) / log(input), where luminance and input are percentages from 0 to 1. I adjusted the luminances to account for non-perfect black levels.

mannequin said:
you should bring all this to the "yellow tint" thread. this is a nice showcase on what's wrong with Nexus screen.
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I would say the iPad is just warmer (red) and the N7 looks more cooler (greenish-blue) Not by much though, just a few degrees off. No one device is perfect.
With the dark areas, it seems the brightness and/or gamma is too high. I use my screen at half brightness which seems on par with other devices and haven't noticed a big difference.
Hopefully we get a screen calibrator like on the N4 and can make adjust individual adjustments.
Sent from Nexus 7 FHD from XDA Premium HD

Dimethyl said:
My conclusion is that the Nexus is fine if sRGB is the ideal target...
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all the measurements that you did are only true to the device that you own. the screens in the wild would differ (sometimes drastically) from yours and from one another.

I totally agree with you. I also see lots of artifacts with any dark scene on my 2013 Nexus 7. It doesn't matter if I am playing a higher resolution (HD) scene or lower resolution one. I wish there was a way to fix that.

Dimethyl said:
I recently purchased an X-Rite i1Display Pro display calibrator. I used it to make really accurate luminance measurements* of the Nexus 7 (2013) and iPad Mini while displaying shades of gray from 0 to 255 in steps of 5. I then calculated the effective gamma** at each step to create the attached chart. It also includes the effective gamma of the reverse sRGB transformation.
My conclusion is that the Nexus is fine if sRGB is the ideal target. I'm not sure what the ideal target is though; in fact, I don't really think there is one. A display gamma calibration of 2.2 to 2.4 seems like the most common recommendation. But almost everyone ignores the fact that sRGB's effective gamma is a lot lower in darker areas. I get the feeling that most people calibrate to a fixed target. sRGB is probably more technically correct. But if fixed 2.2 to 2.4 is more common, does that make it a de facto standard? E.g. if professional movie studios edit their movies on monitors calibrated to fixed gamma, but I watch it with sRGB gamma, doesn't that mean I'm not viewing it as intended by the creator? I'm not saying this is necessarily the case. I'm really, really confused .
So anyway, I just wanted to share my results. You will have to draw your own conclusions.
* I used spotread.exe from Argyll with the -x swtich. The first number from the "Yxy" result is luminance in cd/m^2.
** Effective gamma meaning: the gamma value you'd have to use to get the same luminance value from the input value. Formula is log(luminance) / log(input), where luminance and input are percentages from 0 to 1. I adjusted the luminances to account for non-perfect black levels.
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Wow....I just look at my screen. It looks nice.
Not sure WTF all that shizz you posted is about. 250 device = 250 device. /shrug

Mine's right about fine xD .