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I was admiring the Nexus specs recently and noticed that with the resolution specs it had "colors" at 65k. To get perspective I checked some other new Android phones and they were all 65k colors. Then I checked the iphone 3gs and it was 16million colors.
This seems like an outrageous disparity.
It has peaked my interest so can anybody explain what "colors" means and how 65k differs from 16m? Also, what does it have to do with the resolution, in other words, the iphone and nexus both have similar resolution (although the nexus is capable of much higher) so why would the less capable one have so much more "colors"?
Basically when google made the nexus one, they made sure not to include all those whimpy weak colors such as peach and pink. Thats all i've got =(
http://blogs.msdn.com/windowsmobile/archive/2005/09/07/462187.aspx
I know, I know, Windows Mobile versus Android, etc...but definitely good material and I think it answers your question reasonably well.
ChillRays said:
Basically when google made the nexus one, they made sure not to include all those whimpy weak colors such as peach and pink. Thats all i've got =(
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Click to collapse
I second that.
Now seriously it has to do with the color depth a device can display. I believe 65K colors means that the color of each pixel on your screen isdefined by 16 bits, or 65535 different levels of colors (2^16=65535) - or a 16bit color depth. 16M colors means your pixels have a 24 bit color depth (2^24=16777216, or each of the Red Green and Blue values of the color can go from 0 to 255) that is said to be the maximum that the human eye can discern.
Now, this said, in the golden age of computing, when PC were not powerful enough to handle 16M colors all together, I used a 16bit color depth on my win98 desktop in order to have a snappier computer without sacrificing any quality (I couldn't tell the difference between 65K and 16M color desktops).
So in conclusion, to me, the difference is more theoretical thans practical, and I agree that having 65k colors on a mobile device is enough, especially because the usage conditions are different from a PC (i.e. direct sunlight and generally speaking on the go) especially when performances are important over eye candy.
So let the iPhone folks play with their wimpy pea greens and peach pinks, and be happy with your functional no frills 65k color availability.
MaximReapage said:
http://blogs.msdn.com/windowsmobile/archive/2005/09/07/462187.aspx
I know, I know, Windows Mobile versus Android, etc...but definitely good material and I think it answers your question reasonably well.
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Click to collapse
Mh, just skimmed through this, I'm sorry, didn't read it before posting my previous... It's got all the info and then some...
thanks for the replies. I definitely want the best of the best to be available on my device but i guess in this case it wont be a big deal.
But I have noticed that when i download a movie, it looks awesome on my computer but when i put it on my phone I can see tons of squares (pixels?) when theres moderate or greater motion, which really makes the picture look pretty crappy. This is a different issue no? And is it common to all devices because of relatively small screen size or do phones like, say, the HD2 not experience this?
That, has to do with the compression. The more you compress a movie the more you will see those "squares"...
In a way I don't get it because the resolution on this phone looks a gazillion times better than the whyphone
Where did you see 65k? The nexus one has 16million colours.
The iphone actually has 18bit while the nexus has a 24bit colour depth
This info was taken from some site:
The number of bits used on the iPhone to display a single pixel of color is 18 bits, with 6 bits used for each of the Red, Green, and Blue primary colors. 18 bits can provide a maximum of 262,144 colors (2^18).
The iphone uses dithering to then emulate 24bit.
The standard on PC displays is True Color, using 8 bits for each of the primary colors, for a total of 24 bits per pixel. 24 bits can provide a maximum of 16,777,216 colors (2^24).
behelit said:
Where did you see 65k? The nexus one has 16million colours.
The iphone actually has 18bit while the nexus has a 24bit colour depth
This info was taken from some site:
The number of bits used on the iPhone to display a single pixel of color is 18 bits, with 6 bits used for each of the Red, Green, and Blue primary colors. 18 bits can provide a maximum of 262,144 colors (2^18).
The iphone uses dithering to then emulate 24bit.
The standard on PC displays is True Color, using 8 bits for each of the primary colors, for a total of 24 bits per pixel. 24 bits can provide a maximum of 16,777,216 colors (2^24).
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As a new member I'm not allowed to post links but I know I saw it on phonescoop among others. I couldn't find colors specs on HTC or Google so reliability of the other sites I read 65k on is admittedly questionable.
AndroidPerson said:
As a new member I'm not allowed to post links but I know I saw it on phonescoop among others. I couldn't find colors specs on HTC or Google so reliability of the other sites I read 65k on is admittedly questionable.
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Post the links with spaces instead of periods after the www and before the com
64k = 64,000
16m = 16,000,000
If a phone has a display of 64K colors, then you will only notice 64,000 different kinds of colors; the rest or the 15,936,000 colors will be converted into a 'matching color'.
If you view that in a phone with 256K color display, same rule applies. Except this time, 256,000 colors will be unique while the rest will be 'matching colors' like different shades of blue can be changed to the nearest matching blue that the phone can suppport.
If a phone has 16M color display, then all the colors in the color spectrum can be viewed in it generating a very vibrant and clear picture.
But this is not the only judging criteria as pixel density plays a huge role. Two phone with 16M colors but resolutions of 480x800 and 320x480 will vary in display. The image in the latter phone will appear to be washed out as there are not sufficient pixels to reproduce the colors on to the screen.
This is a very old post but I thought of just sharing the info...
AndroidPerson said:
I was admiring the Nexus specs recently and noticed that with the resolution specs it had "colors" at 65k. To get perspective I checked some other new Android phones and they were all 65k colors. Then I checked the iphone 3gs and it was 16million colors.
This seems like an outrageous disparity.
It has peaked my interest so can anybody explain what "colors" means and how 65k differs from 16m? Also, what does it have to do with the resolution, in other words, the iphone and nexus both have similar resolution (although the nexus is capable of much higher) so why would the less capable one have so much more "colors"?
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Hey
I see there is desire for insights and understanding by reading press articles about 2.3.3 color change.
First, a statement:
What I know:
- What I will explain here
- 2.3.3 change looks bad on my device : Colors are washed out, the response is very far from a 2.2 gamma / sRGB calibrated screen should look like.
What I don't know:
- If the result is bad on every screen. Probably not.
It's known Samsung manufactured at least 2 different Super AMOLED screen revisions, and it's possible that 2.3.3 looks perfect on some screens.
Links:
Issue 15039: Android 2.3.3 screen yellowish
What changed:
In 2.3.3, the screen (framebuffer) driver has been updated.
This screen driver consist of several files, including code that calculate gamma adjustment points and brightness levels dynamically based on a reference gamma table.
Change in 2.3.3 can be categorized in 3 types:
Code and gamma points calculations
1/ A new feature introduced is the ability of the driver to read informations from the screen hardware.
So far, there was no detection at all, just configuration sent.
Now the driver has the ability to ask to the screen: "what are your factory calibration levels for Red, Green and Blue"
2/ Another change is in the driver initialization sequence, supposed to setup the internal screen control hardware calculations for gamma 2.2 instead of something else (not specified)
It has the effect of brightening shadows.
Color temperature change
The updated driver has the ability to use multipliers to adjust the screen temperature on the linear scale.
In theory, it should allow to change red/green/blue levels without altering the color rendition accuracy, despite the complex calculations needed to generate color profiles at each brightness levels.
Today, those Red Green Blue multipliers are fixed in stone, but I'll publish shortly a kernel version + an app so you can control them manually.
It will needed to be treated with care because of potential overheat or fast burn-in side-effects at too high brightness levels.
Different Gamma table (aka Super AMOLED color profile)
Colors calibration for Super AMOLED design has almost no common points with current methods applicable to LCD only.
Calibrating a AMOLED screen requires to setup 255 different hardware correction profiles, one per brightness level.
Instead of that, math calculations, based on a reference gamma table are used to setup responses applied by the screen hardware, that control each single led accordingly.
On a LCD screen it's much simpler as the LCD panel response is always the same: One profile is virtually enough as brightness changes correspond to adjustments of the backlight power.
This is why LCD-type adjustment calibration or color change tools (like the one in CyanogenMod) cannot be used to calibrate Super AMOLED screen.
The gamma table has been vastly updated. It also brighten the shadows compared to previous profiles.
However, Google's previous Gamma table exhibited a purple deviation in dark grays, especially at low brightness settings. This new gamma table fixes the issue.
Source files:
- main driver - calculations
- hardware gamma adjustment points placement
- gamma table (and in the same file: screen initializations sequence)
Commits - source changes:
1/ ARM: herring: panel: Adjust pentile gamma table
2/ s3cfb_tl2796: Add support for reading mtp gamma register offsets
3/ s3cfb_tl2796: Add debug function to read current gamma correction registers
4/ ARM: herring: panel: Add support for reading mtp data
5/ ARM: herring: panel: Update gamma table
6/ ARM: herring: panel: Correct color temperature.
Conclusions
The new driver is properly (I would say: smartly!) written. It implement features exactly how it should be done.
Also, it should work well on each screen revision as it adapt to them.
However, something went wrong in the process.
Calibrating a screen cannot be done
Also, this is a Super AMOLED. Contrast Ratio of it is almost infinite.
Trying to apply exactly color profiles designed for lesser screens, with lower contrasts and gamut cannot work, by design.
However it doesn't mean a Super AMOLED screen is condemned to exhibit washed out or absurd over-saturated colors.
In a similar way, calibrating plasma TVs is not easy but can lead to excellent results.
Kernel for color developers, allowing hardware calibration
In this post
and this one
Yes, a third one too
Yet again another one
write in progress... comments welcome already
just a bit of extra info
http://www.engadget.com/2011/02/27/nexus-s-2-3-3-update-adjusts-screens-color-temperature-we-go-e/
Poll shows
2607 like the new colors.
727 do not like the new colors.
terryhau said:
just a bit of extra info
http://www.engadget.com/2011/02/27/nexus-s-2-3-3-update-adjusts-screens-color-temperature-we-go-e/
Poll shows
529 like the new colors.
157 do not like the new colors.
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Click to collapse
Yes but I think the poll accuracy is affected by the article's photo,
The camera white balance used favor 2.3.3 color rendition.
On the color accuracy topic, the photo is not representative of what you see on the actual screen.
It allows however to calculate differently:
581 (14.9%) "looking good"
170 + 82 + 142 = 394 not happy with the update. "No, my screen looks terrible." + "No, mine's plagued with other bugs here." + "No, everything's gone wrong!"
The poll asks people how they think it looks on their device, not in the picture.
But i agree, polls are inaccurate.
I haven't actually seen the 2.3.3 color profile on my own device because none of the custom kernels here use it. And i don't want to use a stock kernel (cm7 user).
When you update your kernel, will it use the new profile by default?
terryhau said:
The poll asks people how they think it looks on their device, not in the picture.
But i agree, polls are inaccurate.
I haven't actually seen the 2.3.3 color profile on my own device because none of the custom kernels here use it. And i don't want to use a stock kernel (cm7 user).
When you update your kernel, will it use the new profile by default?
Click to expand...
Click to collapse
Yeah, this poll cannot be accurate as the poll answers are for different questions, mixing color changes and general update modifications.
This poll is invalid by design ^^
You cannot add apples and oranges.
Until we manage to get nice colors from the new driver & gamma table, I'll publish mine with the old solution + the Voodoo color profile applied from the app.
But in this thread yes I'll publish a special kernel running the new code. But with the ability to customize it.
The goal is to let people try adjustments and share them
When the 2.3.3 update was released a few days ago, my immediate reaction was positive. I noticed how dramatically better the greys looked. Colors looked more accurate. I viewed the change as positive. I was quite vocal about how this was a fix, not a problem.
http://forum.xda-developers.com/showpost.php?p=11632473&postcount=7
http://forum.xda-developers.com/showpost.php?p=11631763&postcount=56
http://forum.xda-developers.com/showpost.php?p=11630603&postcount=49
http://forum.xda-developers.com/showpost.php?p=11629424&postcount=41
http://forum.xda-developers.com/showpost.php?p=11628604&postcount=30
http://forum.xda-developers.com/showpost.php?p=11618865&postcount=448
http://forum.xda-developers.com/showpost.php?p=11618733&postcount=446
Unfortuntately, after nearly three full days of use I must take back every single one of the above posts. My screen looks terrible. The colors ARE more accurate. The greys ARE much better. However, overall my screen looks like it has jaundice. Everything listed in post #49 referenced above (ie. the dialer) does look dramatically better. However, my whites are terrible. They are not "yellow" per se, but they look like they have a slight yellow tinge like a subtle parchament effect. And honestly, I think since I knew this was an intended fix I convinced myself to like it. I figured the yellow was just my imagination because it was overly blue before, and yellow is the opposite of blue. If I look at my Facebook widget, GMail app, or Market app objectively three days later I can honestly say the yellow is real, and it is quite gross. When compared directly to my girlfriend's myTouch 4G the change is even more apparent. It's not that her whites are overly blue...mine really do have a subtle yellow tinge. And although stock and voodoo are both a bit oversaturated, the new 2.3.3 cover profile does appear undersaturated or "washed out."
Last night I reverted to voodoo color and WOW, it was a breath of fresh air. The colors are not as accurate. However, I don't care. The jaundice is gone, and my screen is vibrant again. If I must accept a tradeoff, I'll take the vibrant oversaturated colors over the sickly jaundice update colors. And this is coming from someone who initially viewed the change as overwhelmingly positive. I suppose subtle differences in sAMOLED manufacturing and each person's own perception of color make each person's preference different. Some people's screens may not have the yellow mine does. However after almost three days of trying to like the new profile, and then a VERY throrough comparison of stock 2.3.2, voodoo, and 2.3.3 ...I'll stick with voodoo. I just can't take the LED jaundice.
Thanks for your hard work supercurio. I'm really looking forward to the calibration tools.
You know @mhaedo, if it a screen looks terrible (in some situations) it's always because the color rendition is not accurate.
Despite each screen physical/technical limitations.
People will tell you "it's washed out because it's calibrated" => wrong.
There is nothing more beautiful − objectively − than a accurately color calibrated screen.
I mean, with a calibrated screen you just forget it because everything is how it should be.
Because it becomes neutral, you don't see the screen anymore, only the images displayed on it.
Thanks for your report!
supercurio said:
You know @mhaedo, if it something looks terrible it's because the colors are not accurate.
People will tell you "it's washed out because it's calibrated" => wrong.
There is nothing more beautiful − objectively − than a accurately color calibrated screen.
I mean, with a calibrated screen you just forget it because everything is how it should be.
Because it becomes neutral, you don't see the screen anymore, only the images displayed on it.
Thanks for your report!
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Well greys are definitely more accurate and look great. However I suppose you are right. As a whole, it is not accurate. I just purchased your voodoo donate market app to support the development. Thanks again.
Sent from my Nexus S using Tapatalk
supercurio said:
You know @mhaedo, if it a screen looks terrible (in some situations) it's always because the color rendition is not accurate.
Despite each screen physical/technical limitations.
People will tell you "it's washed out because it's calibrated" => wrong.
There is nothing more beautiful − objectively − than a accurately color calibrated screen.
I mean, with a calibrated screen you just forget it because everything is how it should be.
Because it becomes neutral, you don't see the screen anymore, only the images displayed on it.
Thanks for your report!
Click to expand...
Click to collapse
I tend to disagree that people forget about a color calibrated screen. Actually, I know it to be completely false. Most best buy locations have a color calibrated TV display where they have two TVs side by side; one calibrated and one not. If you ask people which TV looks better 99 out of 100 people will tell you the overly blue saturated TV is clearly more bright and has deeper blacks. Those people are wrong. That is exactly what is going on here and its exactly why Samsung and others do this to displays. I'm all for giving people the choice when it comes to their screens but I'm also for not letting people perpetuate a falsehood; I've looked closely at my screen and my wife's, looked at every "horriblely" yellow tinted screen people have posted pictures of and I stand by my statement that there us nothing wrong. People are just used to horribly tuned screens.
Sent from my Nexus S using XDA Premium App
There is calibration and calibration.
Often, the name calibration is used for reddish screen tones and dull colors.
It should only describe a rendering scientifically accurate that fit the intended target color space.
Most times: sRGB color space.
However, I fully agree on the temperature. 6500K, which is the natural sRGB white point is fine compared to natural colors in exterior, but it's rarely the best choice for screens except for people working on imaging only.
I don't think either it's the absolute best choice for a mobile display.
- Cooler (more blue) temperature look better inside especially: more.. white
- We are used to blueish screens. As a consequence 65000 looks strange to most of us.
Polls don't mean a lot, if there are different screen versions, it's possible that the update works great on some screens and not on others.. It's possible that the people answering the Engadget poll have in majority devices with the same screen for which the update worked great.
The Google forums posts say exactly the opposite, 90%+ not happy and only a few happy.
In my opinion it is not possible to think that the colors on the screen of my phone look correct. The screen colors look like something you find on a cheap LCD or an old LCD screen with worn out back light that gives no more contrast.
Anyhow with Supercurio's kernel the issues is temporarily fixed.
Thanks for the hard work!
You're welcome.
It's barely a choice, I would prefer selling my Nexus S than using it with 2.3.3 colors
Voodoo color profile V1 currently is app is far from perfect however. I gave it a 5 or 10 rating only.
− Began porting latest Voodoo color code and code documentation in 2.3.3
kenvan19 said:
I tend to disagree that people forget about a color calibrated screen. Actually, I know it to be completely false. Most best buy locations have a color calibrated TV display where they have two TVs side by side; one calibrated and one not. If you ask people which TV looks better 99 out of 100 people will tell you the overly blue saturated TV is clearly more bright and has deeper blacks. Those people are wrong. That is exactly what is going on here and its exactly why Samsung and others do this to displays. I'm all for giving people the choice when it comes to their screens but I'm also for not letting people perpetuate a falsehood; I've looked closely at my screen and my wife's, looked at every "horriblely" yellow tinted screen people have posted pictures of and I stand by my statement that there us nothing wrong. People are just used to horribly tuned screens.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Look, I'll agree that an overtly "blue" tinted screen is not good, both for colour accuracy and the life of your SAMOLED screen.
But, I do not for a minute believe the current 2.3.3 colour profile is anywhere close to "calibrated" or "accurate". It's not. Some are experiencing extreme yellow tint and washout. Also as supercurio's Voodoo colour profile has demonstrated the "purple tint" issue can be eliminated without introducing a yellow tint.
And I will repeat this over and over again until I can't type. NOT all SAMOLED screens are the same as supercurio pointed out. There are displays out there more negatively impacted by the 2.3.3 driver update.
supercurio said:
You're welcome.
It's barely a choice, I would prefer selling my Nexus S than using it with 2.3.3 colors
Voodoo color profile V1 currently is app is far from perfect however. I gave it a 5 or 10 rating only.
− Began porting latest Voodoo color code and code documentation in 2.3.3
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Click to collapse
You rock!
I agree about selling the NS due to 2.3.3. I never intended to unlock my bootloader and mess with the kernel.. But here we are, and thankfully you did the amazing work of helping us out.
And I agree there's room to improve (and I will leave that to the master), there is still too much blue tint on my screen, even if the purple tint has been eliminated. I can imagine obtaining a 6500 temperature on this phone, and not the yellow tinted mess Google provided.
supercurio said:
You're welcome.
It's barely a choice, I would prefer selling my Nexus S than using it with 2.3.3 colors
Voodoo color profile V1 currently is app is far from perfect however. I gave it a 5 or 10 rating only.
− Began porting latest Voodoo color code and code documentation in 2.3.3
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Click to collapse
based on the downloads of my kernels...people running 2.3.3 prefer "2.3.2 w/voodoo colors" 2:1 over stock "2.3.3 colors"
thanks for your attention
MadFerIt2011 said:
Look, I'll agree that an overtly "blue" tinted screen is not good, both for colour accuracy and the life of your SAMOLED screen.
But, I do not for a minute believe the current 2.3.3 colour profile is anywhere close to "calibrated" or "accurate". It's not. Some are experiencing extreme yellow tint and washout. Also as supercurio's Voodoo colour profile has demonstrated the "purple tint" issue can be eliminated without introducing a yellow tint.
And I will repeat this over and over again until I can't type. NOT all SAMOLED screens are the same as supercurio pointed out. There are displays out there more negatively impacted by the 2.3.3 driver update.
Click to expand...
Click to collapse
You are entitled to your opinion but I will just say this: I have not seen a single picture of a screen that possesses this "yellow tint" that does not look normal to me. You're right though, SuperCurio fixed the purple tint without normalizing the colors, however his fix (this isn't meant as a slight to SuperCurio as I am a great believer in his work and his skill as a developer) didn't actually make the screen look natural. I still hold to my belief that what most people are claiming is a bug is really just a result of the fact that manufacturers have been using this type of over-blue saturation for years and that most people's eyes have become accustomed to it not to mention the fact that our eyes are easily tricked into seeing bright blue as brighter white.
kenvan19, you need to see how a professionally calibrated screen look like
supercurio said:
kenvan19, you need to see how a professionally calibrated screen look like
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I used to calibrate screens professionally. I calibrated all the screens in my home, my parents home and my wife's parents home. I have quite a lot of experience with the subject, actually, and I'd really appreciate not being talked down to about it.
Great news keep the good work man
I'm getting ready for Donation cheer
kenvan19 said:
I used to calibrate screens professionally. I calibrated all the screens in my home, my parents home and my wife's parents home. I have quite a lot of experience with the subject, actually, and I'd really appreciate not being talked down to about it.
Click to expand...
Click to collapse
Ah okay sorry. I'll be interested by your collaboration then with the upcoming release, especially if you still have calibration hardware !
Since I can't see an SGNote in a store yet, curious if the SAMOLED's less than natural colors ever bothers you, they seem to bother me on the lower resolution SAMOLED phones but a bit less on the same res but lower pixel density Tab 10.1 screen (however I prefer Transformer's IPS for a tablet)? -Thx
P.S. - I've heard mention in video reviews that the SGNote does have better color calibration than its other SAMOLED's handhelds.
http://www.mobiletechreview.com/ubbthreads/showflat.php?Number=41813
"Blacks are extremely deep and colors are richer than life, which is typical of Samsung's Super AMOLED display technology. For this high end phone, Samsung spent some time calibrating and tweaking it, and the blue color cast found on other Galaxy phones is at a minimum, and pure black images are pure black with no banding or light patches."
http://www.youtube.com/watch?v=Es7orfYUc3w#t=03m57s
There are three color settings that are select able by the user. They go from very saturated to about normal.
dennishhh said:
There are three color settings that are select able by the user. They go from very saturated to about normal.
Click to expand...
Click to collapse
I didn't know that, cool, I'll look into that, if anyone uploads a YouTube video I'd like to see if that shows up..-Thx
same as computer monitor
i was shocked at how different the colors where when i got my capitvate. unnatural is the only way to put it. took me a long time to get use to the pumped up color amoled screen. (certain colors are increased because that is ones your eyes see easier making the screen pop) so when i was thinking of buying the note i had read that samsung gave the owner the choice to change that pumped up look to a more natural scheme i was thrilled. the lower saturation of color feels more closely to regular lcds. when i hold the phone next to my high end computer monitor with the same picture they are very similar in hue and saturation. although sometimes when i am showing off the big screen phone to friends i switch to the standard amoled setting (because the colors pop) i usually choose the lcd type setting for everyday use. hope this helps.
bedspringlex said:
i was shocked at how different the colors where when i got my capitvate. unnatural is the only way to put it. took me a long time to get use to the pumped up color amoled screen. (certain colors are increased because that is ones your eyes see easier making the screen pop) so when i was thinking of buying the note i had read that samsung gave the owner the choice to change that pumped up look to a more natural scheme i was thrilled. the lower saturation of color feels more closely to regular lcds. when i hold the phone next to my high end computer monitor with the same picture they are very similar in hue and saturation. although sometimes when i am showing off the big screen phone to friends i switch to the standard amoled setting (because the colors pop) i usually choose the lcd type setting for everyday use. hope this helps.
Click to expand...
Click to collapse
It does help, thanks, how is that color setting changed?
P.S. - Even on my newer Samsung TVs, when someone with blue eyes comes on the screen they can look fluorescent fake giving it a sci-fi vibe that can look ridiculous!
SMARTPHONEPC said:
I didn't know that, cool, I'll look into that, if anyone uploads a YouTube video I'd like to see if that shows up..-Thx
Click to expand...
Click to collapse
Zedomax did it http://www.youtube.com/watch?feature=player_detailpage&v=RsmDvvckt6k#t=1096s but ideally still would like to see it in person. The higher res screen must help as the colors are not bothering me like they do on lower res SAMOLED screens. I'll check out the 720p SGNexus in person even though I don't think it has the SGNote 3 color settings ("Dynamic, Standard, Movie" in Settings->Display-Screen Mode) that provide more user control.
Still would also like to see the SGNote with other launchers+cool live wallpaper as I'm no fan of the stock TouchWiz look..it shouldn't be too difficult to make it look cooler than stock right?
Hi,
the display of our nexus 7 really is a shame for a google lead-device.
Look here:
http://www.displaymate.com/Tablet_7inch_ShootOut_1.htm
http://www.displaymate.com/news.html#8
http://www.zdnet.com/google-nexus-7-bright-image-compression-blamed-on-oem-incompetence-7000001450/
http://news.cnet.com/8301-1035_3-57479059-94/expert-claims-googles-nexus-7-display-has-flaws/
or here (left nexus 7 - right nook color):
http://forum.xda-developers.com/attachment.php?attachmentid=1380397&stc=1&d=1349526183
The Nexus 7 has a very bad white saturation...
So hopefully these things will be fixed soon by Asus and Google. And hopefully these things are not hardware related..
PS: There is a further Problem with PRISM smartdimmer too (appears after watching full-screen movies).
This can be "fixed" resp. disabled by editing a config-file...but it doesn´t fix the bad quality over-all...
Very disappointing for a Google lead-device!
True.
The display, for me at least, is fine. You have to remember, Asus made this tablet in FOUR MONTHS. There's gonna be problems. I've read dozens
of threads about dead pixels, screen lift, screen ficker, bad replacements, ect. Mine, for example, has screen ficker, but it's not bad I just deal with it. Not everyone feels that way though. Also, Google sold this at a loss.
Considering how great I think my Nexus 7 display looks, the op is really over-generalizing.
Pixel density and color rendition I consider superb for a device in this class.
Sent from my Nexus 7 using xda app-developers app
Oh great, another thread with someone *****ing
Sent from my Nexus 7
I ride the light rail to work and frequently have people sit next to me that have competing devices, including iPad.
Before I'd read the articles, I was telling them how awesome the display was. And they would actually agree!
Then I read these articles and proceeded to stomp on my device and through it in the trash. Didn't matter what it looked like to me or even the owners of the competiton though about how vibrant and clear it was......
Just kidding, I still enjoy it very much and I used to own a Nook Color. I still can't see what the big deal is. Displaymate and the others have mentioned that the hardware is excellent for the display and that a color calibration is likely all that's required.
When that happens, I'll be like "holy cow!!!! Still can't see the big deal!"
Oh lordy this DisplayMate guy again with his graphs and charts.. Yeah he's doing what is called advertising his company by latching onto a hot item with unfounded negative opinions and "data" and it's working unfortunately because all you have to do in the tech field is claim you are an "expert" and anyone will put what you say to print. The N7 display looks absolutely fantastic and the DisplayMate guy is an idiot.
The first 4 links are about the same thing just from different places, I have no problems at all with my display and think it looks great.
styckx said:
Oh lordy this DisplayMate guy again with his graphs and charts.. Yeah he's doing what is called advertising his company by latching onto a hot item with unfounded negative opinions and "data" and it's working unfortunately because all you have to do in the tech field is claim you are an "expert" and anyone will put what you say to print. The N7 display looks absolutely fantastic and the DisplayMate guy is an idiot.
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Uh, no, he uses actual quantifiable data that tells you how the display performs technically. You may not care about the details, and the differences may not make a difference to you, but unless you have something to actually dispute the data, you're clearly the one being an idiot - you might as well be a flat heart her railing on someone and their fancy 'science' and stuff...
Coming from the 1st Fire, this screen looks amazing and runs great thus far. Very happy with my purchase.
Even compared to a new Fire and went with this and I am wrapped up quite a bit in the Amazon ecosystem.
Sent from my Nexus 7 using Tapatalk 2
Before the n7 I was owning the iPad 3, I must say the n7
have almost nothing to compare to the iPad 3 Disaply(only display).
But I got my n7 and it's pretty good display, not the best but above average.
ffs
I was complimented on how nice the display on my Nexus 7 looked just 3 days ago by my boss, who is an electrical and software engineer and total technophile... I think the display looks quite good, the color reproduction is truer to life than the over-saturated AMOLED displays.
In fact the Nexus 7 is quite frequently praised for it's display by reviewers, such as this one:
http://reviews.cnet.com/google-nexus-7/
Packed with pixels, the Nexus 7's screen truly satisfies. Its 1,280x800-pixel-resolution screen delivers 1,024,000 pixels, giving it one of the highest pixel densities of any tablet. The bottom line: With a beautiful screen, fast performance, a comfortable design, and overall great media options, the Nexus 7 is easily the best 7-inch tablet available and one of the top tablets on the market.
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I think most people complaining about the display are either used to the unrealistic saturation of OLED displays, have defective units, or are trolls.
The Google Nexus 7 has a retina-class display (215 PPI). The Galaxy Tab has a 169 PPI display similar to the Kindle Fire and the Nook tablet. For consumers who like to read e-books on their tablet, the Nexus offers a sharper display.
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Here it is in an article about tablets with the best screens:
http://reviews.cnet.com/8301-19736_7-57406607-251/tablets-with-the-best-screens/
Yeah... it basically has the best display in it's class, I really don't understand what people are complaining about. I think the display looks fantastic, and I am not newbie to smart phones or tablets. If yours really looks so awful send it back for an exchange because it is defective.
masully84 said:
Oh great, another thread with someone *****ing
Sent from my Nexus 7
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Umm...it's a fricking forum....for, amoung other things, people dissatisfied in some way to express it.
If its too much for you, don't click the post.
The calibration isn't quite right. Hopefully a firmware update at some point can fix it. But I can understand people getting tired of this topic brought up repeatedly. This has been discussed quite a bit. And I've been critical of the poor calibration, but I would not say the screen looks bad at all. I think it looks good, it just could look better.
Ravynmagi said:
The calibration isn't quite right. Hopefully a firmware update at some point can fix it.
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Yes i hope they will fix it soon. The upcoming iPad Mini surely will have a display comparable to the iPad3.
And it´s rumored price is under $ 300,- too. So ASUS really should catch up with it.
Compared to an iPad 3 the lower Pixel density and bad color saturation makes (especially small) texts harder to read on our Nexus 7.
Fonts on iPad 3 are very sharp and deep-black - on Nexus 7 they often (chrome, flipboard, in-app settings-menu) look kinda gray and blurred.
Just compare it to iPad 3 and you will see the difference. If you don´t know how good it can be you will say our Nexus 7 display is good.
But if you have seen what´s possible on iPad3 you will be disappointed of N7.
I know a lot of "fandroids" always would say N7 is the best and greatest - i like the N7 too - but some things are bad and I don´t whitewash it.
Greens (and by extension yellows and cyans) tend to look more washed out on the Nexus 7 than on most other displays I've seen.
But colors are still better than any AMOLED I've ever seen. I'd much rather have a similar IPS panel on my Galaxy Nexus with its slightly washed out colors than the AMOLED with it's exaggerated saturation.
Who cares, some people have too much free time to nitpick
Sent from my GT-P6800 using xda premium
Bogdan-xd said:
Greens (and by extension yellows and cyans) tend to look more washed out on the Nexus 7 than on most other displays I've seen.
But colors are still better than any AMOLED I've ever seen. I'd much rather have a similar IPS panel on my Galaxy Nexus with its slightly washed out colors than the AMOLED with it's exaggerated saturation.
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That´s difficult .. AMOLED on Galaxy SIII for me looks a little better than our washed out IPS (especially on texts).
But IPS on iPAD tops N7 significantly (especially the whites, greens and blues).
What's all this about amoleds and "more accurate" color reproduction. Going between my gnex and my N7 is like night and day. I absolutely love how the colors are so rich and deep looking. Then going to my N7 the colors are "accurate" but look washed comparing the two. If there was a little more contrast on the N7 it would be perfect but things are just too bright, needs more dept and shadows.
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ÜBER™ said:
What's all this about amoleds and "more accurate" color reproduction. Going between my gnex and my N7 is like night and day. I absolutely love how the colors are so rich and deep looking. Then going to my N7 the colors are "accurate" but look washed comparing the two. If there was a little more contrast on the N7 it would be perfect but things are just too bright, needs more dept and shadows.
Sent From My Toro+ via Tapatalk
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The problem is that colors on N7 are not accurate at all.
Blue green and white for example are far off the sRGB standard.
And Gamma is too low...
look here:
http://www.tomshardware.co.uk/nexus-7-test-jelly-bean,review-32494-5.html
or here:
http://www.anandtech.com/show/6073/the-google-nexus-7-review/3
color gamut is pretty bad especially compared to ipad3 (and upcoming ipad mini too ????)
according to this graphic the display (hardware?) can´t show all green and blue tones.
So we maybe will never see a softwareupdate which fixes our problem.
If you're colorblind, please disregard this thread. Rate this thread to express how you deem the color saturation and accuracy of the LG Nexus 5X's display. A higher rating indicates that you think that color accuracy is very high and saturation is excellent.
Then, drop a comment if you have anything to add!
Colors are a bit dull
Colours pop more more than the N5 and they seem fairly accurate.
Fairly accurate but a bit warm. Some people might like it though, I prefer a sharp white but it's good on the eye anyway.
Good color representation and enough color punch
I am satisfied with the color saturation and accuracy. I wouldn't want the color to be more saturated compared to amoled screen. The screen on my 5X is relaxing, there is no pressure/strain to the eyes(auto brightness is on) it just feels right!
According to Anandtech the colors and white point are spot on as far accuracy goes...
http://www.anandtech.com/show/9742/the-google-nexus-5x-review/2
Years of over saturated colors and much too blue white points have conditioned us to think that displays should look like that
Colors seem accurate, EXCEPT for when viewing videos. Colors seem extremely muted when in a video, for instance in youtube, you might see a screenshot of a video when choosing what video to watch, but if you click it and get to the same scene, the colors will be muted in video.
CrushD said:
Colors seem accurate, EXCEPT for when viewing videos. Colors seem extremely muted when in a video, for instance in youtube, you might see a screenshot of a video when choosing what video to watch, but if you click it and get to the same scene, the colors will be muted in video.
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I'm seeing similar behaviour. Gamma looks out of whack in youtube. Blacks are totally washed out. Everything looks overexposed. Not sure if it's a software/driver issue. The display looks great otherwise. Need to try out some other video apps (kodi, mxplayer etc.) to confirm.
Edit: It is indeed a software issue. It's the difference between 16-235 vs 0-255. See this thread for more details https://www.reddit.com/r/Nexus6P/comments/3r9ftg/defective_6p_screen_vs_normal/
Also: https://productforums.google.com/fo...J0aLRo/YIFmN5jXAQAJ;context-place=forum/nexus
The youtube test fails on my n5x, but not on my n5
I'm pretty happy with it. Improved compared to the Nexus 5(which was good too). Some owners have reported a very warm/yellowish screen but luckily I'm not having that issue. I rated it a 4/5 for saturation and accuracy which is as good as possible for a LCD.
EDIT: So I just did a side by side comparison between my Nexus 5 and Nexus 5X. Side by side the Nexus 5X is noticeably warmer but it's not overly warm and honestly, coming from someone who prefers displays on the cooler side because they look more life like, I actually would give the slight edge to the Nexus 5X. But like I said that is only side by side. With each phone on its own I can't really tell either one being too warm or too cool. As far as saturation goes the Nexus 5X is better. The colors on the Nexus 5 were noticeably more washed out compared to the Nexus 5X(although not that bad). I really see it in the red of the Chrome icon, the green of the Hangouts icon and the blue of the Facebook icon. It's still not AMOLED colors but closer than the Nexus 5.
fink.nottle said:
I'm seeing similar behaviour. Gamma looks out of whack in youtube. Blacks are totally washed out. Everything looks overexposed. Not sure if it's a software/driver issue. The display looks great otherwise. Need to try out some other video apps (kodi, mxplayer etc.) to confirm.
Edit: It is indeed a software issue. It's the difference between 16-235 vs 0-255. See this thread for more details https://www.reddit.com/r/Nexus6P/comments/3r9ftg/defective_6p_screen_vs_normal/
Also: https://productforums.google.com/fo...J0aLRo/YIFmN5jXAQAJ;context-place=forum/nexus
The youtube test fails on my n5x, but not on my n5
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Does anyone know if any of the custom ROMs fix this issue? I don't see it mentioned as a feature in any of the first posts of the ROMs posted in this forum...
CrushD said:
Does anyone know if any of the custom ROMs fix this issue? I don't see it mentioned as a feature in any of the first posts of the ROMs posted in this forum...
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No, but this is a kernel bug. Someone identified the commit in the reddit thread. So you wouldn't even need an entire ROM for a fix. A kernel fix should do it. I don't have enough posts to post in the kernel forums, but you should post in the elementalx kernel thread. The dev seems to be active in developing kernels for all the nexus phones.
jimv1983 said:
EDIT: So I just did a side by side comparison between my Nexus 5 and Nexus 5X. Side by side the Nexus 5X is noticeably warmer but it's not overly warm and honestly, coming from someone who prefers displays on the cooler side because they look more life like, I actually would give the slight edge to the Nexus 5X..
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Nexus 5 has a white point of just over 7000k, the 5X is almost bang on 6500k.
Like many have said, we are just used to seeing "cooler" colours in our phones. Nexus 5X is really accurate as far as colours go.
James1o1o said:
Nexus 5 has a white point of just over 7000k, the 5X is almost bang on 6500k.
Like many have said, we are just used to seeing "cooler" colours in our phones. Nexus 5X is really accurate as far as colours go.
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That is true though some 5x are arriving with extreme yellow tints which make them look like 5000k or even warmer. Anyone who gets one of these would be 100% correct in saying the device is too yellow, unfortunately since most people are so used to cold blue screens they might not even be able to tell which they received as compared to their old device even a proper 5x panel will probably look warm.
For example this was a replacement 5x device I received on the right which went straight back to Google.
http://imgur.com/a/FyT9e
CrushD said:
Does anyone know if any of the custom ROMs fix this issue? I don't see it mentioned as a feature in any of the first posts of the ROMs posted in this forum...
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Click to collapse
Im fairly certain its addressed by kernels not roms... Personally i use Flar2's elemental kernel and have since the Original N5. With his app (which im happy to support) you have full colour controls including gamma. Which you can flash over stock or custom rom depending on your preference his kernel is in the Original Development section.
Nice colours
My last phone (lg g2) was ruining my eyes. Too cool blue with strong contrast. Overtime a screen with false colors and contrast can ruin your vision - making the real world seem dull.
The Nexus 5X is correct and easier on the eyes.
Well, it seems to me that default color is pumped, like vivid, almost neonic a bit and warm. Which is good I guess for the phone. Im not planning to do any color balancing and adjustments on my phone, I would use the PC for that kind of work of course.
Unbelievable nice!